LegalizeDAG.cpp revision efa533957dfdc29be6de3845158ebd5fa7391485
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 83e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 93e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file implements the SelectionDAG::Legalize method. 113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/SelectionDAG.h" 153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 17acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey#include "llvm/CodeGen/MachineJumpTableInfo.h" 1884bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/CodeGen/MachineModuleInfo.h" 1969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 2061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 22e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 25707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman#include "llvm/Target/TargetSubtarget.h" 26adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 28c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 295e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 30a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 31dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 327971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 33f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 35033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 51360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 60475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LastCALLSEQ_END; 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 6868a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 6968a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 70d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 7668a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 81475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue> LegalizedNodes; 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8303c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 8403c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 8503c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 86475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue> PromotedNodes; 8703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 88c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 89c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 90c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 91475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, std::pair<SDValue, SDValue> > ExpandedNodes; 923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 93c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 94c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 96475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::pair<SDValue, SDValue> > SplitNodes; 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner 987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 101475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, SDValue> ScalarizedNodes; 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner 103475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void AddLegalizedOperand(SDValue From, SDValue To) { 10469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 10569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 10669a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 10769a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1088afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 109475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void AddPromotedOperand(SDValue From, SDValue To) { 1106b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second; 11103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 11403c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1158afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1171002c0203450620594a85454c6a095ca94b87cb2Dan Gohman explicit SelectionDAGLegalize(SelectionDAG &DAG); 1183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 12283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands LegalizeAction getTypeAction(MVT VT) const { 12368a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 12883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands bool isTypeLegal(MVT VT) const { 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 134456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 136c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 137475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void HandleOp(SDValue Op); 138c7029805ef35ce9805931067b841e6af11db382eChris Lattner 139c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 140c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 141c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 142475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LegalizeOp(SDValue O); 143c7029805ef35ce9805931067b841e6af11db382eChris Lattner 144826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 145826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 146826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 147826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 148475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UnrollVectorOp(SDValue O); 1496867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 1506867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// PerformInsertVectorEltInMemory - Some target cannot handle a variable 1516867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 1526867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// is necessary to spill the vector being inserted into to memory, perform 1536867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// the insert there, and then read the result back. 154475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue PerformInsertVectorEltInMemory(SDValue Vec, SDValue Val, 155475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx); 156826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 162475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue PromoteOp(SDValue O); 1633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 164475871a144eb604ddaf37503397ba0941442e5fbDan Gohman /// ExpandOp - Expand the specified SDValue into its two component pieces 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 166929d3eb171cd95a7fb353ef71a460d2061be4e6cDan Gohman /// the LegalizedNodes map is filled in for any results that are not expanded, 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 170475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ExpandOp(SDValue O, SDValue &Lo, SDValue &Hi); 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 174475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void SplitVectorOp(SDValue O, SDValue &Lo, SDValue &Hi); 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 179475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ScalarizeVectorOp(SDValue O); 180c7029805ef35ce9805931067b841e6af11db382eChris Lattner 181d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands /// isShuffleLegal - Return non-null if a vector shuffle is legal with the 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 190475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDNode *isShuffleLegal(MVT VT, SDValue Mask) const; 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 192c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 195475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void LegalizeSetCCOperands(SDValue &LHS, SDValue &RHS, SDValue &CC); 196750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 197475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, bool isSigned, 198475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi); 199475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandIntToFP(bool isSigned, MVT DestTy, SDValue Source); 200475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 201475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue EmitStackConvert(SDValue SrcOp, MVT SlotVT, MVT DestVT); 202475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandBUILD_VECTOR(SDNode *Node); 203475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandSCALAR_TO_VECTOR(SDNode *Node); 2047f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue LegalizeINT_TO_FP(SDValue Result, bool isSigned, MVT DestTy, SDValue Op); 205475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandLegalINT_TO_FP(bool isSigned, SDValue LegalOp, MVT DestVT); 206475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue PromoteLegalINT_TO_FP(SDValue LegalOp, MVT DestVT, bool isSigned); 207475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue PromoteLegalFP_TO_INT(SDValue LegalOp, MVT DestVT, bool isSigned); 208475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 209475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandBSWAP(SDValue Op); 210475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandBitCount(unsigned Opc, SDValue Op); 211475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool ExpandShift(unsigned Opc, SDValue Op, SDValue Amt, 212475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi); 213475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void ExpandShiftParts(unsigned NodeOp, SDValue Op, SDValue Amt, 214475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi); 215475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 216475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandEXTRACT_SUBVECTOR(SDValue Op); 217475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandEXTRACT_VECTOR_ELT(SDValue Op); 2183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 227475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDNode *SelectionDAGLegalize::isShuffleLegal(MVT VT, SDValue Mask) const { 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 23683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 237d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands MVT EltVT = NVT.getVectorElementType(); 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 24183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NVT.getVectorNumElements() / VT.getVectorNumElements(); 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 245475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 247475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = Mask.getOperand(i); 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 250d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 252f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned InEltNo = cast<ConstantSDNode>(InOp)->getZExtValue(); 253d038e04188047eca4749d025ef1f05f7ae660bcaDuncan Sands Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, EltVT)); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 257bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 263ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.getNode() : 0; 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2669c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2679c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2689c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2696a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 2746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 2766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 277ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 278ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 279ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 280ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 28132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 28232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 283f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman DAG.AssignTopologicalOrder(); 284f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 285f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman E = prior(DAG.allnodes_end()); I != next(E); ++I) 286f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman HandleOp(SDValue(I, 0)); 28732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 28832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 289475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue OldRoot = DAG.getRoot(); 29032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 29132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 2923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 2943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 29571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 296c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 2977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 2983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 300190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3066831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 313475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TheChain(Node, Node->getNumValues()-1); 3146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 316475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TheChain = SDValue(Node, 0); 3176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 321475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TheChain = SDValue(Node, i); 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3358968450305c28444edc3c272d8752a8db0c2f34aDan Gohman SDNode *User = *UI; 3366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3466831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 352ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif return FindCallStartFromCallEnd(Node->getOperand(0).getNode()); 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 358c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 359c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 360c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 361c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 362c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 36300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 366c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 367c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 368c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 369c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 374475871a144eb604ddaf37503397ba0941442e5fbDan Gohman if (LegalizedNodes.count(SDValue(N, 0))) return false; 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 377475871a144eb604ddaf37503397ba0941442e5fbDan Gohman if (PromotedNodes.count(SDValue(N, 0))) return false; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 380475871a144eb604ddaf37503397ba0941442e5fbDan Gohman if (ExpandedNodes.count(SDValue(N, 0))) return false; 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 389ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif LegalizeAllNodesNotLeadingTo(N->getOperand(i).getNode(), Dest, NodesLeadingTo); 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 391c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 392c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 393c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 394c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 397475871a144eb604ddaf37503397ba0941442e5fbDan Gohman HandleOp(SDValue(N, 0)); 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 402c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 403475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::HandleOp(SDValue Op) { 40483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 4057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 406c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 409c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 41083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!VT.isVector()) { 4117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 413475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue X, Y; 41409ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 41509ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 416c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 41783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.getVectorNumElements() == 1) { 4187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 421c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 424475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue X, Y; 4257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 426c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 427c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 428c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 429c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4319f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4329f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 433475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanstatic SDValue ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 434279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 435004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 436004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 437004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 438004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 439004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 440aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // double. This shrinks FP constants and canonicalizes them for targets where 441aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // an FP extending load is the same cost as a normal load (such as on the x87 442aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // fp stack or PPC FP unit). 44383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = CFP->getValueType(0); 4444fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman ConstantFP *LLVMC = const_cast<ConstantFP*>(CFP->getConstantFPValue()); 4459f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4469e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4479e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4487111b02c734c992b8c97d9918118768026dad79eDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().bitcastToAPInt(), 449ef12057737229452c17983faa20857dba441ef05Evan Cheng (VT == MVT::f64) ? MVT::i64 : MVT::i32); 450279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 451279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 45283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OrigVT = VT; 45383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SVT = VT; 454ef12057737229452c17983faa20857dba441ef05Evan Cheng while (SVT != MVT::f32) { 45583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SVT = (MVT::SimpleValueType)(SVT.getSimpleVT() - 1); 456ef12057737229452c17983faa20857dba441ef05Evan Cheng if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && 457ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 458ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 4596fd599fa6916bd9438dbea7994cf2437bdf4ab8cEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, SVT) && 460aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner TLI.ShouldShrinkFPConstant(OrigVT)) { 46183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *SType = SVT.getTypeForMVT(); 462ef12057737229452c17983faa20857dba441ef05Evan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 463ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 464ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 465ef12057737229452c17983faa20857dba441ef05Evan Cheng } 466004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 467004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 468475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 46950284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 470ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 471ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), 4723069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 47350284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman 0, VT, false, Alignment); 474ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, 47550284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman PseudoSourceValue::getConstantPool(), 0, false, Alignment); 476004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 477004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 4786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 479912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 480912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 481912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 482475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT NVT, 483475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SelectionDAG &DAG, TargetLowering &TLI) { 48483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 48583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(1).getValueType(); 4867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 4877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 48883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 489068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 490912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 491475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask1 = (SrcVT == MVT::f64) 492912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 493912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 494068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 495475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 496068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 497912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 49883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int SizeDiff = SrcNVT.getSizeInBits() - NVT.getSizeInBits(); 499912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 500912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 501912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 502912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 503c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner } else if (SizeDiff < 0) { 504c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner SignBit = DAG.getNode(ISD::ZERO_EXTEND, NVT, SignBit); 505c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner SignBit = DAG.getNode(ISD::SHL, NVT, SignBit, 506c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner DAG.getConstant(-SizeDiff, TLI.getShiftAmountTy())); 507c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner } 508068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 509068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 510475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask2 = (VT == MVT::f64) 511068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 512068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 513068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 514475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 515068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 516068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 517068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 518912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 519912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 520912095becac923ff614d7b07728eb345ada67765Evan Cheng} 521912095becac923ff614d7b07728eb345ada67765Evan Cheng 522f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 523f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 524475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 525475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TargetLowering &TLI) { 526475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = ST->getChain(); 527475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = ST->getBasePtr(); 528475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = ST->getValue(); 52983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Val.getValueType(); 530907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 531907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 53283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getMemoryVT().isFloatingPoint() || 53383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ST->getMemoryVT().isVector()) { 534907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 535907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 53683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT intVT; 53783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.is128BitVector() || VT == MVT::ppcf128 || VT == MVT::f128) 5388155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 53983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (VT.is64BitVector() || VT==MVT::f64) 540907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 541907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 542907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 543907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 544cd9f1747ab72f9863924fbdf43493d9fa6256719Dale Johannesen assert(0 && "Unaligned store of unsupported type"); 545907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 546475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 547907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 548907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 549907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 55083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(ST->getMemoryVT().isInteger() && 55183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands !ST->getMemoryVT().isVector() && 552907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 553f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 55483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewStoredVT = 55583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands (MVT::SimpleValueType)(ST->getMemoryVT().getSimpleVT() - 1); 55683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int NumBits = NewStoredVT.getSizeInBits(); 557f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 558f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 559f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 560475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 561475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = Val; 562475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 565475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store1, Store2; 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 570f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 571dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 572f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 573f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 574f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 575f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 576f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 577f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 578f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 579f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 580f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 581475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 582475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TargetLowering &TLI) { 583f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 584475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = LD->getChain(); 585475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LD->getBasePtr(); 58683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LD->getValueType(0); 58783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT LoadedVT = LD->getMemoryVT(); 58883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() || VT.isVector()) { 589907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 5908155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // then bitconvert to floating point or vector. 59183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT intVT; 59283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LoadedVT.is128BitVector() || 5933c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen LoadedVT == MVT::ppcf128 || LoadedVT == MVT::f128) 5948155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 59583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (LoadedVT.is64BitVector() || LoadedVT == MVT::f64) 596907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 597e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 598907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 599907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 6008155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(0 && "Unaligned load of unsupported type"); 601907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 602475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 603907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 604907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 605475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 60683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() && LoadedVT != VT) 607907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 608907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 609475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Result, Chain }; 6104bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands return DAG.getMergeValues(Ops, 2); 611907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 61283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(LoadedVT.isInteger() && !LoadedVT.isVector() && 613e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 614e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 6158155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // Compute the new VT that is half the size of the old one. This is an 6168155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // integer MVT. 61783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumBits = LoadedVT.getSizeInBits(); 61883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewLoadedVT; 61983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewLoadedVT = MVT::getIntegerVT(NumBits/2); 620e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 621e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 622e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 623e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 624f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 628f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 629f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 630f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 631475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 632f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 633f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 634f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 635f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 636f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 637f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 638f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 639dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 640f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 641f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 642f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 643f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 644f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 645f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 646f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 647dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 648f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 649f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 650f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 651475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 652475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 653f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 654f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 655475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 656f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 657f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 658475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Result, TF }; 6594bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands return DAG.getMergeValues(Ops, 2); 660f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 661912095becac923ff614d7b07728eb345ada67765Evan Cheng 662826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 663826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 664826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 665826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 666475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::UnrollVectorOp(SDValue Op) { 66783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 668826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 669826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 670ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Op.getNode()->getNumValues() == 1 && 671826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 67283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NE = VT.getVectorNumElements(); 67383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 674826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 675475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Scalars; 676475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 4> Operands(Op.getNumOperands()); 677826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 678826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 679475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Operand = Op.getOperand(j); 68083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OperandVT = Operand.getValueType(); 68183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (OperandVT.isVector()) { 682826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 68383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OperandEltVT = OperandVT.getVectorElementType(); 684826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 685826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 686826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 687826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 688826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 689826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 690826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 691826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 692826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 693826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 694826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 695826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 696826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 697826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 698826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 699826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 700007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands/// GetFPLibCall - Return the right libcall for the given floating point type. 70183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT VT, 702007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F32, 703007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F64, 704007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F80, 705007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_PPCF128) { 706007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands return 707007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f32 ? Call_F32 : 708007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f64 ? Call_F64 : 709007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f80 ? Call_F80 : 710007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::ppcf128 ? Call_PPCF128 : 711007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::UNKNOWN_LIBCALL; 712007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands} 713007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands 7146867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// PerformInsertVectorEltInMemory - Some target cannot handle a variable 7156867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 7166867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// is necessary to spill the vector being inserted into to memory, perform 7176867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// the insert there, and then read the result back. 718475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize:: 719475871a144eb604ddaf37503397ba0941442e5fbDan GohmanPerformInsertVectorEltInMemory(SDValue Vec, SDValue Val, SDValue Idx) { 720475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1 = Vec; 721475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2 = Val; 722475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = Idx; 7236867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7246867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // If the target doesn't support this, we have to spill the input vector 7256867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // to a temporary stack slot, update the element, then reload it. This is 7266867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // badness. We could also load the value into a vector register (either 7276867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // with a "move to register" or "extload into register" instruction, then 7286867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // permute it into place, if the idx is a constant and if the idx is 7296867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // supported by the target. 73083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp1.getValueType(); 73183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 73283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IdxVT = Tmp3.getValueType(); 73383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 734475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(VT); 7356867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 736ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif int SPFI = cast<FrameIndexSDNode>(StackPtr.getNode())->getIndex(); 7376867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7386867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the vector. 739475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, 740a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0); 7416867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7426867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Truncate or zero extend offset to target pointer type. 7438e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands unsigned CastOpc = IdxVT.bitsGT(PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 7446867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 7456867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Add the offset to the index. 74683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = EltVT.getSizeInBits()/8; 7476867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 748475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 7496867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the scalar value. 7506867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, 751a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0, EltVT); 7526867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Load the updated vector. 753a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman return DAG.getLoad(VT, Ch, StackPtr, 754a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0); 7556867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman} 7566867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 757a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 758a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 759a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 760a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 761475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { 76209ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 76309ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 76409ec1b058331aadb29a348091611d23892b5c492Chris Lattner 765c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 766e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 767ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *Node = Op.getNode(); 768e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 770e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 77145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 77245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 773c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 774c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 776c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 77703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 78145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 78245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 783475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); 784e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 786475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Tmp4; 787475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = Op; 788456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 789456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 791948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 792948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 793948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 794948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 795948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 79637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 797948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7983181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 799948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 800948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 801b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 802056292fd738924f3f7703725d8f630983794b5a5Bill Wendling case ISD::TargetExternalSymbol: 803948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 804948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 80569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case ISD::MEMOPERAND: 806948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 807276dcbdc8db6614cfd5004dc7dc35e437ddf9c58Duncan Sands case ISD::ARG_FLAGS: 808948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 809a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 810948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 811948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 813d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 814d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 815d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 816475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 817c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 818d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 819c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 820f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 821d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 822d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 823d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 82499a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 825d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 826d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 827e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 82839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 829e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8320d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 834b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 835056292fd738924f3f7703725d8f630983794b5a5Bill Wendling case ISD::ExternalSymbol: 83637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 83737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8380c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8390c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 840948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 841948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 842ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 843948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8440c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8450c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8460c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 848bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 849bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 850bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 851bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 852bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 853ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) 854bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 855bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 856bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 857bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 858055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 85983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 860066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 861066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 862066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 863066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 864ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) break; 865066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 866066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 867066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 868066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 869066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 870055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 871066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8722bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8732bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 87483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 8752bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8762bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8772bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8788782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 879b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 8802bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8812bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8822bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8832bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 884ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) break; 8852bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 886eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 8884bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands Result = DAG.getMergeValues(Ops, 2); 8898782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8908782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8918782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 892eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 893ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()->getNumValues() == 1) break; 894b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 895ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Result.getNode()->getNumValues() == 2 && 896b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 897b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 898b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 899b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 900b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 901b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 902b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 903b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 90499a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp2 : Tmp1; 9058782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9068782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9078782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 90883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9098782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9108782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9118782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9128782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 913b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9148782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9178782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 918ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) break; 9198782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 920eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 921475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 9224bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands Result = DAG.getMergeValues(Ops, 2); 9232bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9242bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9252bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 926eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 927ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()->getNumValues() == 1) break; 928b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 929ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Result.getNode()->getNumValues() == 2 && 930b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 931b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 932b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 933b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 934b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 935b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 936b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 937b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 93899a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp2 : Tmp1; 9396d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 94083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9412365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9422365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9432365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9442365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9452365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 946ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) break; 9472365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9482365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9492365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9502365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9512365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 9522365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 9536d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9542365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 95508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 95608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 95708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 958c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 95908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 960308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 961c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 96299a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif Result = Node->getOperand(Op.getResNo()); 963456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 96469a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 96569a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9667310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 967f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 968c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9697310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 970f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 971c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 972f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 973c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 974c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 975c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 976c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9777310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9787310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 97913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 98013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 98113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 98213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 98399a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 984fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 98583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 986fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 987ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 988ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 98983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) 990fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 99183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (VT.isFloatingPoint()) 99283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Result = DAG.getConstantFP(APFloat(APInt(VT.getSizeInBits(), 0)), 993f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 994fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 995fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 996fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 997ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 998fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 999fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1000fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1001fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1002d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 100348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 100448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 100548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1006475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 1007d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1008d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1009f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 101010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 101110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 101248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 101310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 101410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1015ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) Result = Tmp3; 101613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 101713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 1018ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()->getNumValues() == 1) break; 101913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 1021ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Result.getNode()->getNumValues() == 2 && 102213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 102313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 102513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 1026475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1027475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 102899a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 1029d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 103036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 10317f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman case ISD::DBG_STOPPOINT: 10327f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman assert(Node->getNumOperands() == 1 && "Invalid DBG_STOPPOINT node!"); 103336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 103436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 10357f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman switch (TLI.getOperationAction(ISD::DBG_STOPPOINT, MVT::Other)) { 103636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 103736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1038f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 103944c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1040abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10414406604047423576e36657c7ede266ca42e79642Dan Gohman bool useLABEL = TLI.isOperationLegal(ISD::DBG_LABEL, MVT::Other); 1042abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10437f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman const DbgStopPointSDNode *DSP = cast<DbgStopPointSDNode>(Node); 104444c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 10457f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman const CompileUnitDesc *CompileUnit = DSP->getCompileUnit(); 10467f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman unsigned SrcFile = MMI->RecordSource(CompileUnit); 1047abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10487f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman unsigned Line = DSP->getLine(); 10497f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman unsigned Col = DSP->getColumn(); 1050abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1051abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1052475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Tmp1, DAG.getConstant(Line, MVT::i32), 105371e8685633e7938ee752004cceedccbd0d850527Evan Cheng DAG.getConstant(Col, MVT::i32), 105471e8685633e7938ee752004cceedccbd0d850527Evan Cheng DAG.getConstant(SrcFile, MVT::i32) }; 105571e8685633e7938ee752004cceedccbd0d850527Evan Cheng Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops, 4); 1056abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1057a647c92ec2b3c91e1e6de25cc5c7860912c7626bEvan Cheng unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); 10584406604047423576e36657c7ede266ca42e79642Dan Gohman Result = DAG.getLabel(ISD::DBG_LABEL, Tmp1, ID); 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1060e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1061e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1062e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 106336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1064e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 106571e8685633e7938ee752004cceedccbd0d850527Evan Cheng case TargetLowering::Legal: { 106671e8685633e7938ee752004cceedccbd0d850527Evan Cheng LegalizeAction Action = getTypeAction(Node->getOperand(1).getValueType()); 106771e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal && Tmp1 == Node->getOperand(0)) 106871e8685633e7938ee752004cceedccbd0d850527Evan Cheng break; 106971e8685633e7938ee752004cceedccbd0d850527Evan Cheng 1070475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 107171e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Tmp1); 107271e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal) { 107371e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(1)); // line # must be legal. 107471e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(2)); // col # must be legal. 107571e8685633e7938ee752004cceedccbd0d850527Evan Cheng } else { 107671e8685633e7938ee752004cceedccbd0d850527Evan Cheng // Otherwise promote them. 107771e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(PromoteOp(Node->getOperand(1))); 107871e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(PromoteOp(Node->getOperand(2))); 107936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 108071e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(3)); // filename must be legal. 108171e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 108271e8685633e7938ee752004cceedccbd0d850527Evan Cheng Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 108336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 108436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 108571e8685633e7938ee752004cceedccbd0d850527Evan Cheng } 108636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1087a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1088a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case ISD::DECLARE: 1089a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); 1090a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { 1091a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng default: assert(0 && "This action is not supported yet!"); 1092a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case TargetLowering::Legal: 1093a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1094a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 1095a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. 1096a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1097a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1098e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner case TargetLowering::Expand: 1099e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 1100e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner break; 1101a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng } 1102a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1103f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1104f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1105abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1106f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1107f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 110871e8685633e7938ee752004cceedccbd0d850527Evan Cheng case TargetLowering::Legal: { 110971e8685633e7938ee752004cceedccbd0d850527Evan Cheng LegalizeAction Action = getTypeAction(Node->getOperand(1).getValueType()); 1110abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 111171e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal && Tmp1 == Node->getOperand(0)) 111271e8685633e7938ee752004cceedccbd0d850527Evan Cheng break; 111371e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal) { 111471e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp2 = Node->getOperand(1); 111571e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp3 = Node->getOperand(2); 111671e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp4 = Node->getOperand(3); 111771e8685633e7938ee752004cceedccbd0d850527Evan Cheng } else { 111871e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 111971e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 112071e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 112171e8685633e7938ee752004cceedccbd0d850527Evan Cheng } 1122c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1123abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1124abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 112571e8685633e7938ee752004cceedccbd0d850527Evan Cheng } 1126abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1127abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11284406604047423576e36657c7ede266ca42e79642Dan Gohman case ISD::DBG_LABEL: 11294406604047423576e36657c7ede266ca42e79642Dan Gohman case ISD::EH_LABEL: 11304406604047423576e36657c7ede266ca42e79642Dan Gohman assert(Node->getNumOperands() == 1 && "Invalid LABEL node!"); 11314406604047423576e36657c7ede266ca42e79642Dan Gohman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 1132abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1133abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1134abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11354406604047423576e36657c7ede266ca42e79642Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1); 1136f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1137a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1138a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1139a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1140f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1141551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 114236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 114327b7db549e4c5bff4579d209304de5628513edebEvan Cheng case ISD::PREFETCH: 114427b7db549e4c5bff4579d209304de5628513edebEvan Cheng assert(Node->getNumOperands() == 4 && "Invalid Prefetch node!"); 114527b7db549e4c5bff4579d209304de5628513edebEvan Cheng switch (TLI.getOperationAction(ISD::PREFETCH, MVT::Other)) { 114627b7db549e4c5bff4579d209304de5628513edebEvan Cheng default: assert(0 && "This action is not supported yet!"); 114727b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Legal: 114827b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 114927b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 115027b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the rw specifier. 115127b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize locality specifier. 115227b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 115327b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 115427b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Expand: 115527b7db549e4c5bff4579d209304de5628513edebEvan Cheng // It's a noop. 115627b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = LegalizeOp(Node->getOperand(0)); 115727b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 115827b7db549e4c5bff4579d209304de5628513edebEvan Cheng } 115927b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 116027b7db549e4c5bff4579d209304de5628513edebEvan Cheng 116122c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth case ISD::MEMBARRIER: { 116222c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); 1163d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { 1164d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1165d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Legal: { 1166475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[6]; 1167d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1168e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands for (int x = 1; x < 6; ++x) { 1169e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = Node->getOperand(x); 1170e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands if (!isTypeLegal(Ops[x].getValueType())) 1171e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = PromoteOp(Ops[x]); 1172e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands } 1173d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); 1174d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1175d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 1176d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Expand: 1177d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth //There is no libgcc call for this op 1178d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = Node->getOperand(0); // Noop 1179d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1180d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 118122c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth break; 118222c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth } 118322c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth 1184e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_8: 1185e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_16: 1186e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_32: 1187e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_64: { 118863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 4; 118963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 1190475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[4]; 119163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 119263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Ops[x] = LegalizeOp(Node->getOperand(x)); 119363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 119463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang 119563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 119663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang default: assert(0 && "This action is not supported yet!"); 119763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Custom: 119863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = TLI.LowerOperation(Result, DAG); 119963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 120063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Legal: 120163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 120263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang } 1203475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1204475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 120599a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 1206126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 1207e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_8: 1208e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_8: 1209e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_8: 1210e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_8: 1211e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_8: 1212e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_8: 1213e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_8: 1214e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_8: 1215e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_8: 1216e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_8: 1217e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_8: 1218e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_16: 1219e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_16: 1220e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_16: 1221e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_16: 1222e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_16: 1223e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_16: 1224e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_16: 1225e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_16: 1226e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_16: 1227e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_16: 1228e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_16: 1229e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_32: 1230e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_32: 1231e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_32: 1232e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_32: 1233e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_32: 1234e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_32: 1235e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_32: 1236e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_32: 1237e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_32: 1238e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_32: 1239e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_32: 1240e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_64: 1241e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_64: 1242e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_64: 1243e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_64: 1244e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_64: 1245e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_64: 1246e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_64: 1247e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_64: 1248e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_64: 1249e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_64: 1250e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_64: { 125163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 3; 125263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 1253475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[3]; 125463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 125526ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 125663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 1257126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 125826ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1259ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 126026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Custom: 126126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = TLI.LowerOperation(Result, DAG); 126226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth break; 126326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Legal: 1264ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1265ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1266475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1267475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 126899a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 1269126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 1270c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1271c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1272c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1273c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1274c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 12753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 12763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 12773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1278c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1279c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1280ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) 1281c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1282c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1284c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 12863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 12873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 12883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 12893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 12903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 12913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12923181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 12933181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1294e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1295e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 12963181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 12973181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1298ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 12993181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 13003181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 13013181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 13023181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1303e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1304e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1305e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1306e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1307e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1308e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1309e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1310e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1311e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1312e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1313e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1314e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1315e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1316279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 13173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1318e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 13193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1321040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1322040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1323c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1324c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1325c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1326c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1327c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1328c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1329c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1330c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1331040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1332475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 1333040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1334c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1336f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1337a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1338a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1339fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1340fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1341f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1342fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1343b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1344ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Tmp3.getNode() && "Target didn't custom lower this node!"); 13450ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // A call within a calling sequence must be legalized to something 13460ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // other than the normal CALLSEQ_END. Violating this gets Legalize 13470ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // into an infinite loop. 13480ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen assert ((!IsLegalizingCall || 13490ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Node->getOpcode() != ISD::CALL || 1350ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Tmp3.getNode()->getOpcode() != ISD::CALLSEQ_END) && 13510ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen "Nested CALLSEQ_START..CALLSEQ_END not supported."); 13520f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 13530f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 13540f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 1355ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert((Tmp3.getNode()->getNumValues() == Result.getNode()->getNumValues() || 1356ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif (Tmp3.getNode()->getNumValues() == Result.getNode()->getNumValues() + 1 && 1357ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Tmp3.getNode()->getValueType(Tmp3.getNode()->getNumValues() - 1) == 13580f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1359b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1360e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1361f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1362e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1363ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif for (unsigned i = 0, e = Tmp3.getNode()->getNumValues(); i != e; ++i) { 1364ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()->getValueType(i) == MVT::Flag) 13650f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1366b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 136799a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif if (Op.getResNo() == i) 1368e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1369475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, i), Tmp1); 1370e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1371e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1372557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1373557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1374557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1375557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1376f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman Tmp2 = DAG.getTargetConstant(idx->getAPIntValue(), idx->getValueType(0)); 1377557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1378557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1379557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1380557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1381557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1382557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1383557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1384557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1385f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman Tmp3 = DAG.getTargetConstant(idx->getAPIntValue(), idx->getValueType(0)); 1386557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1387557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1388557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1389b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1390b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 13912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13922332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1394ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 13952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 13962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1399ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1400ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = ExpandBUILD_VECTOR(Result.getNode()); 1401b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 14022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 14052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 14062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 14070325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14080325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 14090325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 14100325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 14110325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 14120325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 14130325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 14140325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 14150325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 14162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 14172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 14182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 14192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 14202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 14212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 14222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 14242281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 1425ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp4.getNode()) { 14262281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 14272332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14282332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14292332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 14302332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 14318d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 14328d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 14338d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 14340325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 14350325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 14360325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 143783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Op.getValueType().getVectorElementType()) { 1438475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 14390325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 14400325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 144183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElts = Tmp1.getValueType().getVectorNumElements(); 144283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskVT = 144383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntVectorWithNumElements(NumElts); 144483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskEltVT = ShufMaskVT.getVectorElementType(); 14450325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14460325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 14470325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 14480325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 1449475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> ShufOps; 14500325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 1451f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (i != InsertPos->getZExtValue()) 14520325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 14530325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 14540325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 14550325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 1456475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 14570325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 14580325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14590325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 14600325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 14610325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 14620325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 14638d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14648d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14656867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Result = PerformInsertVectorEltInMemory(Tmp1, Tmp2, Tmp3); 14662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1470ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1476ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1477ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1478ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1479ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1480ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1481ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1482ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14834d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14844d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1485ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 14864d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 14874d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 14884d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 14894d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 14904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 14914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1492ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1493ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1494ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 149587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 149687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 149787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 149887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 149987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 150087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 15014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 15024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 15034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 15044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 15054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 15064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 150818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1509ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 151018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 151118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 151218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 151318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 151418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 151583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 151683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 151783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 1518475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = Node->getOperand(2); 151918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1520475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue,8> Ops; 152118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 1522475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Arg = Mask.getOperand(i); 152318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 152418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 152518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 152618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 1527f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned Idx = cast<ConstantSDNode>(Arg)->getZExtValue(); 152818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 152918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 153018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 153118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 153218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 153318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 153418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 153518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1536bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 15374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 153818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 15394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 15404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 154183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 154283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 15434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 15454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 15464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 15474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 1549475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp3 = SDValue(isShuffleLegal(OVT, Node->getOperand(2)), 0); 1550ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Tmp3.getNode() && "Shuffle not legal?"); 15514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 15524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 15534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 155587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 155687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1557384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1558384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1560384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1561384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1563384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1564384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15706595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15716595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 157800755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1580ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).getNode(), Node, 1581c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1582c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 15856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 15896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1590c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1591b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1592b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1593b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 15946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 15966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1597475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 15986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1599f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 16006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 16034b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 16044b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 16054b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 16064b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 16086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 16096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 16106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 16116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 16126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 1613475871a144eb604ddaf37503397ba0941442e5fbDan Gohman LastCALLSEQ_END = SDValue(CallEnd, 0); 16146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 16156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 16176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 16186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 16196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 16206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 162116cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 16226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 16236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 1624ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (LastCALLSEQ_END.getNode() != Node) { 1625475871a144eb604ddaf37503397ba0941442e5fbDan Gohman LegalizeOp(SDValue(FindCallStartFromCallEnd(Node), 0)); 1626475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); 16276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 16286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 16296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 16306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 16336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 16343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 163570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 163670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 163770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 163870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1639475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 164070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1641f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 164270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 164370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 164470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 164570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 164670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1647475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 164870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 164970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1650f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 165170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 16526a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16534b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16564b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16574b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 1658475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 16594b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 1660475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 166199a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 1662a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 166383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1664fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1665fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1666fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1667c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1668fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1669c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16705f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 167161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1672a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1673903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1674903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1675903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1676903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1677475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = Tmp1.getOperand(0); 16780f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16790f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16800f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 1681e563bbc312f8b11ecfe12b8187176f667df1dff3Chris Lattner Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(0, true)); 16820f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1683475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Size = Tmp2.getOperand(1); 1684475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SP = DAG.getCopyFromReg(Chain, SPReg, VT); 168561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 1686f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned Align = cast<ConstantSDNode>(Tmp3)->getZExtValue(); 168761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 168861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 168961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 16903e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 16913e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 169261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 16930f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 16940f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1695e563bbc312f8b11ecfe12b8187176f667df1dff3Chris Lattner Tmp2 = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(0, true), 1696e563bbc312f8b11ecfe12b8187176f667df1dff3Chris Lattner DAG.getIntPtrConstant(0, true), SDValue()); 16970f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1698c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1699c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1700903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1701903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1702903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 17035f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 1704ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 1705c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1706c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1707a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1708903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1709a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1710903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1711a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1712903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1713903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1714475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 1715475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 171699a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp2 : Tmp1; 1717a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 171825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1719475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 172025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 172125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 172225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 172325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 1724475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = LegalizeOp(Ops[0]); 172525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 172625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 172725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 172825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 172925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 1730f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getZExtValue() >> 3; 173125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 1732475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = LegalizeOp(Ops[i]); 173325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 173425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 173525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 173625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 173725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 173825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 173925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 174025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 174125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 174225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 174325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 174425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1745ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 174625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1747f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1748ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1749ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1750475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1751475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 175299a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 175325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1754c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1755c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1761c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1762c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 176337efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 176437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 176537efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 176637efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 176737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 176837efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 176937efe6764568a3829fee26aba532283131d1a104Nate Begeman 177037efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 177137efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 177237efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 177337efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 177437efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 177537efe6764568a3829fee26aba532283131d1a104Nate Begeman } 177637efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 177737efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17803d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 17813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 17833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 17843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 17863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 17873d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17883d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 17893d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 17903d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 17913d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 17923d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 1793ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 17943d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 17953d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 1796475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = Result.getOperand(0); 1797475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Table = Result.getOperand(1); 1798475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Index = Result.getOperand(2); 17993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 180083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PTy = TLI.getPointerTy(); 1801acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1802acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 18033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 1804475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1805acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1806475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LD; 1807acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1808acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 180969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 18103069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 181169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 18123069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1813acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1814acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1815cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1816acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 18173d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 18183d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1819cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1820cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1821cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1822cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1823cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 18243d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1825cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 18263d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18273d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18283d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1829c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1830c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 18356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 183647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 183747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 183847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 183947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 184047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 18412e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 184247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1843f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1844f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1845f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 18462e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1847ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 18482e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1849f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 185047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 185147e9223e06390897c3834f8c527001df392570ffChris Lattner } 18522e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1853456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1854456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1855c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18567cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18577cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18587cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1859456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1860456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1861456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1862ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 1863456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18647cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18657cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18667cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18677cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18697cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18707cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18717cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18777cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18787cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18797cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18807cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 18817cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 18836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1885750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1886750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1887750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1888181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1889750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1890722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1891722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1892750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1893750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1894750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1895ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode() == 0) { 1896750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1897750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1898750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1899750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1900750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1901750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1902456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1903181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1904181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1905456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1906456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1907456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1908ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp4.getNode()) Result = Tmp4; 1909181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 19107cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1911c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1912f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1914466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1915466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 19162d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1917466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 191983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1920466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1921466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1922466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1925466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1926f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1927f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1928f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1929f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1930f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 193183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 1932f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1933ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.getNode()), DAG, 1934f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1935f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1936f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1937907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1938907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1939f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1940f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1941f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1942466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1944ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) { 1945466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1946466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1947466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1948466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1949466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1950466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 195183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Cannot promote this load!"); 1952466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 195383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1954466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1955466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1956d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1957d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1958466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 195941f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1960466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1961f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1962466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1964466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1965475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp3); 1966475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp4); 196799a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp4 : Tmp3; 1968466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 196983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = LD->getMemoryVT(); 197083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcWidth = SrcVT.getSizeInBits(); 1971f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1972f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1973f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1974f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 197583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SrcWidth != SrcVT.getStoreSizeInBits() && 1976f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1977f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1978f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1979f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1980f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1981f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1982f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1983f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 1984f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1985f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1986f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 198783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NewWidth = SrcVT.getStoreSizeInBits(); 198883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(NewWidth); 1989475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch; 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 2005f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2006f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2007f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2014f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 201683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SrcVT.isExtended() && !SrcVT.isVector() && 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 202483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 202583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 2026475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi, Ch; 2027f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2034f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2035f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2037f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2042f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2043f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2044f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2056f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2061f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2068f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2070f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2071f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2074f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2075f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2077f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2078f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2081f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2090f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2091f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2096f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2099f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2100f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2101ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2103f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2104f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2105f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2106f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2107f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2108f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2109f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 211083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 2111f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2112ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.getNode()), DAG, 2113f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2114f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2115f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2116f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2117f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2118f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2119f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2120f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2121f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2122f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2123f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2124f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2125475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2126f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2127f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2128f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2129f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2130f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2131f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2132f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2133f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2134f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2135f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2136f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2137f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2138f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2139f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2140475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ValRes; 2141f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2142f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2143f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2144f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2145f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2146f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2147f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2148466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2149466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21509d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2151f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2152466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2153466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2154475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 2155475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 215699a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp2 : Tmp1; 215701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 215801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21595dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 216083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OpTy = Node->getOperand(0).getValueType(); 21615dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21635dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 2164f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) { 21655dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21665dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 216783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OpTy.getSizeInBits()/2, 21685dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21695dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21705dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21715dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21725dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21735dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21745dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21755dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21765dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21775dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21785dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2179f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) 21805dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 21815dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 21825dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 21835dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21845dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21865dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 21893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2190edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2191c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2192d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 21937310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2194d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2195f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2196c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 21977310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2198f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2199c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2200f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2201c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2202c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2203c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2204c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 22057310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 22067310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 22077310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 22087310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2209475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 2210475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 2211c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 22127310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 22133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 22153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 22163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 22176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 22186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 22196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 22206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 22216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2222f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 22248e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 222598f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 22268e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2227f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 22283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22298e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 22303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2231f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 223283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!Tmp2.getValueType().isVector()) { 2233475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2234f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2235edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2236edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 22370753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2238edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2239edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2240ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Hi.getNode()) 224113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 224213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 224313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2244f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2245f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2246ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *InVal = Tmp2.getNode(); 224799a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif int InIx = Tmp2.getResNo(); 224883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 224983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 2250f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2252ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 225383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 22547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2255ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22578e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2258f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2259f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22628e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2263b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2264b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2265b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2266b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2267f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2268f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2269f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2270f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2271b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2272b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2273475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2274f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2275fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2276f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2277f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2278f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2279edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 22828e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2283c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 22848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 22853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2288c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 22893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2291475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> NewValues; 22923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 22938e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 22943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 22953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22964e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 22978e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 22983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 2300475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 230183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(!Node->getOperand(i).getValueType().isExtended() && 2302b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 23033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 23058e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 2306ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Hi.getNode()) { 230713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 230813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 230913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2310edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 23113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 23138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 23143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2315c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2316c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2317f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2318c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2319f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2320f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 23213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 232417c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 23256862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 23266862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 23276862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 23286862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 23296862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 23306862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2331ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 23326862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 23336862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 233417c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 23353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2336f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 23378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 23388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 23398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2340d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2341d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2342d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 23438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2345d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2346d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2347d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2348d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2349d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2350d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23519e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23522b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23533cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23543cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23556cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman Tmp3 = DAG.getConstant(CFP->getValueAPF(). 23567111b02c734c992b8c97d9918118768026dad79eDale Johannesen bitcastToAPInt().zextOrTrunc(32), 23573f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23589e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23599e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23609e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23619e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23623cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23633cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23647111b02c734c992b8c97d9918118768026dad79eDale Johannesen Tmp3 = DAG.getConstant(CFP->getValueAPF().bitcastToAPInt(). 23656cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman zextOrTrunc(64), MVT::i64); 23663cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23673cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23683cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 2369d4b9c17fb705c2f58ceef4f37d789ddb56783584Duncan Sands } else if (getTypeAction(MVT::i32) == Legal && !ST->isVolatile()) { 23703cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23713cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23723cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23737111b02c734c992b8c97d9918118768026dad79eDale Johannesen const APInt &IntVal =CFP->getValueAPF().bitcastToAPInt(); 2374475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); 2375475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); 23760753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23773cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23783cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23793cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23803cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 23823cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2383dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 23843cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23853cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 23863cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23873cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2388d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2389d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2390d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2391b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 23928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 23938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 23942efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 23958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 23968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 239783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp3.getValueType(); 23988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 23998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2400f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2401f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2402f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2403f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2404f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 240583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 2406f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2407ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.getNode()), DAG, 2408f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2409f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2410f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 24118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 24128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 2413ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 24148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 241683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Unknown legal promote case!"); 24178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 24188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 24198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2420d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2421d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 24228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24242efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2425f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 24268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 24278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 24288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 24298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2430b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2431d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 24328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 243303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 24348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 24358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 2436475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2437c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 24398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 24408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 244183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getValue().getValueType().isVector()) { 2442ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *InVal = ST->getValue().getNode(); 244399a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif int InIx = ST->getValue().getResNo(); 244483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT InVT = InVal->getValueType(InIx); 244583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVT.getVectorNumElements(); 244683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVT.getVectorElementType(); 24478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2449ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 245083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 24517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2452ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 245321be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2455d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 246021be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2462d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 246821be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 2469ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif IncrementSize = Lo.getNode()->getValueType(0).getVectorNumElements() * 247083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands EVT.getSizeInBits()/8; 24718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2472c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 247321be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 2474ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif IncrementSize = Hi.getNode() ? Hi.getValueType().getSizeInBits()/8 : 0; 24758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24764b052dc63d31e764b85d62c056bffe576d501ed4Richard Pennington if (Hi.getNode() && TLI.isBigEndian()) 24778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2478c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2479c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2481d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24827b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 2483ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Hi.getNode() == NULL) { 24847b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 24857b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 24867b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 24877b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 24887b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24900bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 24918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 24928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2493d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2494dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 24958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2496d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2501ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2502ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2503ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2504ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2505ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2506ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2507ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2508ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2509ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2510ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2511ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2512ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2513ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2514ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2515ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 25167e857201f387d004571e6058e2ea709163500f38Duncan Sands 251783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT StVT = ST->getMemoryVT(); 251883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned StWidth = StVT.getSizeInBits(); 25197e857201f387d004571e6058e2ea709163500f38Duncan Sands 252083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (StWidth != StVT.getStoreSizeInBits()) { 25217e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 25227e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 25237e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 252483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(StVT.getStoreSizeInBits()); 25257e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 25268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25277e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 25287e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 25297e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 253083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(StVT.isExtended() && !StVT.isVector() && 25317e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 25327e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 25337e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 25347e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 25357e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 25367e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 25377e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 253883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 253983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 2540475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 25427e857201f387d004571e6058e2ea709163500f38Duncan Sands 25437e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 25447e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 25457e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25477e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 25487e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25497e857201f387d004571e6058e2ea709163500f38Duncan Sands 25507e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25567e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25577e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25587e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25597e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25607e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25617e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25627e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25637e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25647e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25657e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25667e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25677e857201f387d004571e6058e2ea709163500f38Duncan Sands 25687e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25697e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25707e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25717e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25727e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25737e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25747e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25757e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2576c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25777e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25787e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25797e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25807e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 25817e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 25827e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 25837e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 25847e857201f387d004571e6058e2ea709163500f38Duncan Sands 25857e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 25867e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 25877e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 25887e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 25897e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 25907e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 25917e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 259283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 25937e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 2594ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.getNode()), DAG, 25957e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 25967e857201f387d004571e6058e2ea709163500f38Duncan Sands } 25977e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25987e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 25997e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 26007e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 26017e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 26027e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 26037e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 26047e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 26057e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 26067e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 26077e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 26098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 26103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 26113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2612f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 261395762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 261495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2615c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 261695762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2617140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2618140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2619c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2620c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2621c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2622456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2623140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2624140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2625456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2626456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2627c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2628ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 2629c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2630c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2631140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2632456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2633140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26344f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 26354f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26364f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2637c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 26384f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2639c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 26404f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2641c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2642c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 26434f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2644456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2645140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2646456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2647456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2648456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2649475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 2650475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 265199a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp2 : Tmp1; 2652456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2653140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2654140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2655140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2656c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2657140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2658140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2659140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2660456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2661456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2662456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2663ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 2664140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2665140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26664f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26674f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26684f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26694f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26704f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26714f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26724f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2673140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2674140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2675140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2676140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 267751b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 267851b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2679c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2680f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2681f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2682f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 26836a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 26846a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 26856a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 26866a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2687f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2688f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 26896a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 26906a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2691f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2692f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 269349c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 269449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 269549c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 2696475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 2697475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 2698c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2699f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 27002ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 270147e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 270247e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 270347e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 270447e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 270547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 27062e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 270747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2708b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 27092e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2710ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 27112e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2712b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 271347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 271447e9223e06390897c3834f8c527001df392570ffChris Lattner } 27152e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 27163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 27172ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 271855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2719c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2720456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2721b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 272255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2723456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2725456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2726ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 2727456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2728456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 27299373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 27309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 27319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 27329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 27339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 27349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 27359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 27369373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 27379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 27389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 273955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 274055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 274183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 274255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 274355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 274483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Tmp2.getValueType().isVector()) { 274541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 274641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 274783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Tmp2.getValueType().isInteger()) { 2748456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2749456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 275055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2752456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 275355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 275455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 275555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 275655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 275755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 275855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 276455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 276555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 276655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2768750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2769750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2770750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27729373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2773475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CC = Node->getOperand(4); 27749373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2775750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2776750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2777750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2778750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2779750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2780ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp2.getNode() == 0) { 2781750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2782750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2783750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2784750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2792ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 27939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 27949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 27959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 27973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2806ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp2.getNode() == 0) { 2807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 28083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 28093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2810b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 281173e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2813456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2814456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2815456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2816456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 28172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2818456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 28192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 2820ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp4.getNode()) Result = Tmp4; 2821456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2822b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2823ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2824ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2825ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2826ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 282783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = Node->getOperand(0).getValueType(); 282883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OldVT = NewInTy; OldVT = OldVT; 2829ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2830ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2831ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 283283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 2833ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 283483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() == OldVT.isInteger() && 2835ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 283683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isFloatingPoint() == OldVT.isFloatingPoint() && 2837ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2838ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2839ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 28401ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2841ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2842ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 284383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NewInTy.isInteger()) 2844ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2845ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2846ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2847ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2848ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2849c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2850c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2852433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28535e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2854ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2855b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2856b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2857b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 285883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 2859b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2860b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2862b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2863b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2865b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 2866b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2867b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2868475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CC = Node->getOperand(2); 2869b43e9c196542acc80c9e4643809661065710848fNate Begeman 2870b43e9c196542acc80c9e4643809661065710848fNate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, CC); 2871b43e9c196542acc80c9e4643809661065710848fNate Begeman 2872b43e9c196542acc80c9e4643809661065710848fNate Begeman // Everything is legal, see if we should expand this op or something. 2873b43e9c196542acc80c9e4643809661065710848fNate Begeman switch (TLI.getOperationAction(ISD::VSETCC, Tmp1.getValueType())) { 2874b43e9c196542acc80c9e4643809661065710848fNate Begeman default: assert(0 && "This action is not supported yet!"); 2875b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Legal: break; 2876b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Custom: 2877b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2878ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 2879b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2880b43e9c196542acc80c9e4643809661065710848fNate Begeman } 2881b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2882b43e9c196542acc80c9e4643809661065710848fNate Begeman } 288352d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 28845b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 28855b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 28865b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 288884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 288984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 289084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 289184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 289284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2893c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2894f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 28952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 289605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 289705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 289805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2899456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2900456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2901456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2902ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) { 2903475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2, RetVal(0, 0); 290405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2905456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 2906475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, i), Tmp2); 290799a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif if (i == Op.getResNo()) 290812f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 290905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2910ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(RetVal.getNode() && "Illegal result number"); 291105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 291205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 291305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 291405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 291505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 29162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 29172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 29182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 2919475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, i), Result.getValue(i)); 292099a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 292184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 29222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 29232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 29243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 29253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 29263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2927c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2928c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 29293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 29303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 29313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 29323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 29333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 293403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 293503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 293603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 293701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 293801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 293901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 294001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2941826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2943f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2944f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2945f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2946f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2947f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2948f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2949f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2950f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2951f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 29525bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman 29535bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman if ((Node->getOpcode() == ISD::SHL || 29545bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Node->getOpcode() == ISD::SRL || 29555bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Node->getOpcode() == ISD::SRA) && 29565bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman !Node->getValueType(0).isVector()) { 29575bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman if (TLI.getShiftAmountTy().bitsLT(Tmp2.getValueType())) 29585bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Tmp2 = DAG.getNode(ISD::TRUNCATE, TLI.getShiftAmountTy(), Tmp2); 29595bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman else if (TLI.getShiftAmountTy().bitsGT(Tmp2.getValueType())) 29605bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), Tmp2); 29615bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman } 29625bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman 2963c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2964456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2965e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2966bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2967456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2968456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2969456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2970ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) { 29715bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Result = Tmp1; 29725bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman break; 297324dc346a16397bf740d8d961cd1ebec8d2f46957Nate Begeman } 29745bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman // Fall through if the custom lower can't deal with the operation 2975bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 297683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 2977525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2978525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2979525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2980525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2981525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2982525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2983525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2984525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2985525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2986525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2987525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2988525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2989525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2990525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2991525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2992525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2993525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2994525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 2995525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2996525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 2997525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2998525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2999525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 3000ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = SDValue(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).getNode(), 0); 3001525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3002525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3003525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3004525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 3005525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 300631d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner Result = SDValue(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).getNode(), 300731d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner 1); 3008525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3009525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3010525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 3011525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 301231d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner Result = SDValue(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).getNode(), 301331d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner 1); 3014525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3015525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3016525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 3017525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 301831d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner Result = SDValue(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).getNode(), 301931d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner 0); 3020525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3021525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3022525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 3023525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 302431d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner Result = SDValue(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).getNode(), 302531d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner 0); 3026525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3027525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3028525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3029826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 3030826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3031826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 3032826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 3033826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 3034826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 3035826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 3036826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 303756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 3038826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 3039826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3040826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 304131d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner case ISD::MUL: 304231d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner if (VT == MVT::i32) 304331d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner LC = RTLIB::MUL_I32; 304431d7161206d7502e97a01a51a76445a8d9ac6ea5Chris Lattner break; 3045826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 3046007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 3047007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 3048826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3049826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 3050826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3051826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 3052475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3053460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 305452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 305552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 305652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 305783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Node->getValueType(0).isVector() && 3058bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3059bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3060826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3061bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3062bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3063cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3064cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3065cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3066cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3067cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3068cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 306983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 307083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 307183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(OVT.isVector() && "Cannot promote this BinOp!"); 3072cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3073cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3074cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3075cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3076cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3077cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3078cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3079cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3080cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3081cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3082e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 30833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3084a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3085e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3086e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3087e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3088e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3089e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3090e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3091a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3092e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3093525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3094525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3095525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3096525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3097e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3098e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3099a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3100a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3101a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3102a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3103a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3104a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3105a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3106a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3107a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3108a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3109a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3110a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3111a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3112a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3113a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3114a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3115a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3116a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3117ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 31188f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3119a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3120912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3121636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3122636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3123636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3124636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3125636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3126912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3127636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 31288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 312983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IVT = 31308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 3131475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 31325b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SignBit = DAG.getSetCC(TLI.getSetCCResultType(SignBit), 31338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 31348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 3135475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 31368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 31378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 31388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 31398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 31408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 31418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 31428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 31438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 31448f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 31458f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 31468f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 314783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 3148912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3149912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3150912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3151912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3152a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3153a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3154912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3155a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3156a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3157551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3158551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3159551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3160551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3161551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3162551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3163551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3164475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 3165475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 3166551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3167edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3168551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3169551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3170551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3171551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3172551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3173551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3174551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3175551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3176475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 3177475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 3178551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3179551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3180419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 318183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PairTy = Node->getValueType(0); 3182419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3183419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3184419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3185419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3187456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3188456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3189419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3190419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3191419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3192419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3193419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3194419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3195419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3196419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 319783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(PairTy.getSizeInBits()/2, 3198419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3199456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3200419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3201419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3202419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3203419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3204419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3205c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3206c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 320701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3208c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3209c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3210456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3211c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3214456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 321657030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3219456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3220ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 3221456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 322257030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3223525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 32246b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 322547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 322683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3227525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3228525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3229525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3230525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3231525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3232ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = SDValue(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).getNode(), 1); 3233525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3234525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3235525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3236525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3237ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = SDValue(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).getNode(), 1); 3238525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3239525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3240525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 324183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) { 3242525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 324352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 324452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 32456b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 324652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 324752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 324883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.isVector()) { 324980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 325052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3251525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 325252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 325356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 325456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 3255475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3256460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 325752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32580d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 325983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isFloatingPoint() && 32600d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 326183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 326280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 326380176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 326480176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3265007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3266007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 3267475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3268460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 326980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3270c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3271c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3272c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3273525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3274c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3275acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3276acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3277acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3278acc398c195a697795bff3245943d104eb19192b9Nate Begeman 327983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3280acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3281acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3282456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3283456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3284456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3285acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3286c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3287c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3288456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3289456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3290456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3291456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3292ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp2.getNode()) { 3293456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3294456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3295456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3296456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3297acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3298acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 329969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 3300475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3301acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3302acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 330383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 3304acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3305acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 330669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3307acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3308466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3309456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3310acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3313acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3314acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3315acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3316475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result); 3317475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp1); 331899a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp1 : Result; 3319acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3320acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3321acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3322acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3323acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3324acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3325acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3326acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3327acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3329456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3330456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3331acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3332c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3333c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3334456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3335456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3336ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 3337456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3338acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3339acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3340acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3341acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 334269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 334369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 3344499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VS, 0); 3345499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VD, 0); 3346acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3347acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3348acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3349acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3350acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3351acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3352acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3353acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3354acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3355acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3356456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3357456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3359acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3360c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3363ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 3364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3365acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3366acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3367acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3368acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3369acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3370acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3371acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3372acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3373acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3374acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3375acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3376c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3377c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3378acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3379acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3380456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3382456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3383ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 3384acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3385acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3386acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3387acc398c195a697795bff3245943d104eb19192b9Nate Begeman 338835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 338935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 339035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 339135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3392c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3393c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3394c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3395c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3396c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3397c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3398c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3399c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3400c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3401ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 3402c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3403c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3404c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3405c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3406c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3407c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3408c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3409c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 341035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 341135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3412d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3413d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3414d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3418c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3419456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3420456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 342183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 342283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 342383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 3424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3425456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3426456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3427456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3428456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3430456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3431456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3432456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3433456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3434d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3435d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3436d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3437691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3438691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3439691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3440691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3441691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3442910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3443691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3444c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3445910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3446335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3447335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3448ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) { 3449335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3450335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3451910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3452691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3453691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 345483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 345583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3456edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3457edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3458691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3459691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3460691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3461456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3462691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3463691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3464691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3465691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3466691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34675b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 346883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 34697cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 347000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 347183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OVT.getSizeInBits(), NVT), Tmp1); 3472691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3473691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 347500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 347683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 347783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands OVT.getSizeInBits(), NVT)); 3478691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3479691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3480691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3481691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3482691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3483456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3484691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3485691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3486691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 348700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 34882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 34892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 34902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3491da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3492da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3493da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 34947794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 34957794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 34967794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 34977794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 34987794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 3499509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FTRUNC: 3500509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FFLOOR: 3501509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FCEIL: 3502509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FRINT: 3503509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FNEARBYINT: 35042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 35052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 350859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 350959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 35102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3511c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 351259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 351359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 3514ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 351559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 35162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3518456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3519456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3520456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 35212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 35222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3523456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3524f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3525f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 35264af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 352783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 35284af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 35295b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 35305922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETUGT); 35314af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 35324af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3533f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3534f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35359d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FSQRT: 35369d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FSIN: 35379d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FCOS: 35387794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 35397794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 35407794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 35417794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 35427794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 35432bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 35442bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 35452bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 35462bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 35479d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FNEARBYINT: { 354883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3549826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3550826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 355183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3552826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3553826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3554826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3555826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 355656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3557f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 355856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3559007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3560007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 356156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 356256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3563007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3564007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 356556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 356656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3567007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3568007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 356956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 35707794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 35717794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::LOG_F32, RTLIB::LOG_F64, 35727794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::LOG_F80, RTLIB::LOG_PPCF128); 35737794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 35747794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 35757794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::LOG2_F32, RTLIB::LOG2_F64, 35767794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::LOG2_F80, RTLIB::LOG2_PPCF128); 35777794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 35787794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 35797794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::LOG10_F32, RTLIB::LOG10_F64, 35807794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::LOG10_F80, RTLIB::LOG10_PPCF128); 35817794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 35827794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 35837794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::EXP_F32, RTLIB::EXP_F64, 35847794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::EXP_F80, RTLIB::EXP_PPCF128); 35857794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 35867794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 35877794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::EXP2_F32, RTLIB::EXP2_F64, 35887794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::EXP2_F80, RTLIB::EXP2_PPCF128); 35897794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 35902bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 35912bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, 35922bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128); 35932bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 35942bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 35952bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, 35962bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128); 35972bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 35982bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 35992bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::CEIL_F32, RTLIB::CEIL_F64, 36002bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128); 36012bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 36022bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 36032bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::RINT_F32, RTLIB::RINT_F64, 36042bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::RINT_F80, RTLIB::RINT_PPCF128); 36052bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 36062bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 36072bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64, 36082bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128); 36092bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 36109d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng break; 3611f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3612f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3613475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3614460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 3615f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3616f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 36172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 36182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 36192c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 36202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 36216ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 362283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3623826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3624826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 362583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3626826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3627826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3628826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3629826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3630826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3631007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3632007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 3633475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3634460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 36356ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 36366ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 363735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 363867993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 36391401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36401401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 364183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Op.getOperand(0).getValueType().isVector()) { 36427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 36437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 3644ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *InVal = Node->getOperand(0).getNode(); 364599a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif int InIx = Node->getOperand(0).getResNo(); 364683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 364783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 36487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 36497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 36507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 365183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 36527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 365307a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 36547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 36557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 36567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 36577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 36587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 36597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 36607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 36617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 36627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 36637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 36647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 36657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 366667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 366735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 366835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 366935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 367035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 36711401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36721401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 367335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 367435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 367535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3676c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 367735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 367835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 367935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 368035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3681d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 36822c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3683fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3684fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3685fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 36867f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = LegalizeINT_TO_FP(Result, isSigned, 36877f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Node->getValueType(0), Node->getOperand(0)); 3688fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3689fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3690fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3691fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3692fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3693fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3694c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3695fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3696fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3697fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3698fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3699fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3700fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3701fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3702fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3703fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3704fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3705fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3706fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3707fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3708fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3709d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3710fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3711fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3712fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3713fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3714f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3715f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 37161618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 37171618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3718456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3719456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3720456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3721456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3722c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3723456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3725ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 3726456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3727456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3728456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3729456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3731456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 37321618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3733d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3734475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue True, False; 373583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getOperand(0).getValueType(); 373683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = Node->getValueType(0); 373773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 373883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero)); 373983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APInt x = APInt::getSignBit(NVT.getSizeInBits()); 3740c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 374173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 37425b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp3 = DAG.getSetCC(TLI.getSetCCResultType(Node->getOperand(0)), 3743d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3744d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3745d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 374601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3747d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3748d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3749c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman DAG.getConstant(x, NVT)); 3750456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3752d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3753d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3754d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3755d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 37561618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3757fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 37586af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 375983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 376083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getOperand(0).getValueType(); 3761fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 37626eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 37630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 37640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 37650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 37660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 37670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 37680bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 37690bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3770fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3771fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3772fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3773fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3774fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3775fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3776fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3777fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3778fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3779fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3780fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3781fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3782fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3783fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3784fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37856eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37866eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3787a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman // Convert f32 / f64 to i32 / i64 / i128. 3788b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = (Node->getOpcode() == ISD::FP_TO_SINT) ? 3789b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::getFPTOSINT(OVT, VT) : RTLIB::getFPTOUINT(OVT, VT); 3790b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpectd fp-to-int conversion!"); 3791475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3792460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 37936af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 37946af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3795fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3796c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3797c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3798c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3799fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3800fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3801fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3802d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3803f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 380483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 380583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 38060bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38070bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38080bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38090bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 38100bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3811f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3812f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3813f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3814f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3815f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3816f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3817f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3818f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3819f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3820f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3821f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3822f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3823f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38240bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 38255411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 382683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 382783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 38280bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38290bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3830475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo; 3831713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 38320bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3833713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3834713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 38350bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 38365411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 38370bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38380bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38390bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 38400bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3841849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3842f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3843f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3844f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3845f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 38460bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3847f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3848f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3849f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38500bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 38510bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3852f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3853f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3854f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38550bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 385613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 38573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 38583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 38593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3860456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 38613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 38623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 386382747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Result = DAG.UpdateNodeOperands(Result, Tmp1); 38640123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 38650123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 386682747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3867ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 38680123b7dcfa9be97588926407163deb8d603487ceScott Michel } 38693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 387003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 387103c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 387213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3873c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3874c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 387513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 38761713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 38771713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 387813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 387923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 388023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 388103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 388203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 38831713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 388413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 38851713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 388615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 388715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 38881713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 388903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 38903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 38913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 38920f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 389323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 38940f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 389583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 389645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 389745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 389845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 389955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 390055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 390155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3902c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 390355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 390455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 390545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 390623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 390745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 390845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 390983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned BitsDiff = Node->getValueType(0).getSizeInBits() - 391083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ExtraVT.getSizeInBits(); 3911475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 391245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 391345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 391445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 391545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 391645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 39172d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 391845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 391945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 392045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 392145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 392245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3923a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3924a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 392545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 392645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 392745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 392855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 392945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 39300f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 393236397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 3933475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[6]; 393436397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 393536397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 393636397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 393736397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 393836397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 3939ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Result.getNode() && "Should always custom lower!"); 3940f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3941f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3942f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3943f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3944f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3945475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result); 3946475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp1); 394799a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp1 : Result; 394836397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 39499c78a399076f8356a53ee67dca9c78e594e34967Dan Gohman case ISD::FLT_ROUNDS_: { 395083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3951917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 3952917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 3953917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 3954917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 3955ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) break; 3956917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 3957917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 3958917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 3959917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 3960917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 3961917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 39629ab9ee8209c313713a54db2d9451751d8cfb9e2aDan Gohman break; 3963917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 396441bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 396583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 396666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 396766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 396841bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 396941bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 397041bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 397141bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 397266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 397366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 3974ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) break; 397566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 397641bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 397766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 397841bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 397966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 3980475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::pair<SDValue,SDValue> CallResult = 398100fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 398286098bd6a63d2cdf0c9be9ef3151bd2728281fd7Dale Johannesen false, false, false, false, CallingConv::C, false, 3983056292fd738924f3f7703725d8f630983794b5a5Bill Wendling DAG.getExternalSymbol("abort", TLI.getPointerTy()), 3984034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 398566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 398666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 398766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 398841bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 398966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 399045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3991456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 39924ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 39934ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 39944ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3995456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3996456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3997456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 39983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 399945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 400045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 400145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 40023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 40033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 40043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 40068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 40078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 40088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 4009475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteOp(SDValue Op) { 401083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 401183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 401203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 401303c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 40148e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(NVT.bitsGT(VT) && NVT.isInteger() == VT.isInteger() && 401503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 401603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 4017475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3; 4018475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 4019ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *Node = Op.getNode(); 402003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 4021475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = PromotedNodes.find(Op); 40226fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 402345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 402403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 4025d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 4026d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 402703c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 4028e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 402939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4030e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 403103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 403203c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 4033fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4034fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 4035fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 403603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 4037ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 4038ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 4039ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 4040ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 404103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 404203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 404303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 404403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 404503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 404603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4047ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 404882fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 40495b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel assert(isTypeLegal(TLI.getSetCCResultType(Node->getOperand(0))) 40505922f561c65968ef1865cc8434d191041e450602Nate Begeman && "SetCC type is not legal??"); 40515b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = DAG.getNode(ISD::SETCC, 40525922f561c65968ef1865cc8434d191041e450602Nate Begeman TLI.getSetCCResultType(Node->getOperand(0)), 40535922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(0), Node->getOperand(1), 40545922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(2)); 405582fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4056fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 405703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 405803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 405903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 406003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 40618e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(Result.getValueType().bitsGE(NVT) && 406203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 40638e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Result.getValueType().bitsGT(NVT)) // Truncate to NVT instead of VT 406403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 406503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4066e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4067e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4068e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4069e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4070e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 407103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 407279e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 407379e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4074e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 407503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 407603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 40778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 40788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 407913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 40808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 40828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4084456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 40858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 40878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 40888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 40898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 40908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4091595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 409215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 409313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 409423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 409523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 40968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 409935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 41001401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 41011401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 410235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 410335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 410435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 41068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 41078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 41088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 41108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 41118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41120bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 41130bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 41140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 41150bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 41160bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 41170bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 41180bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 41190bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 41200bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 41218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 41258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 41268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 412877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4129456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 41358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 413615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 413715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 41388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 413923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 414023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 414177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 414277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 41438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 414577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 414677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 414777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 414877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 414915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 415015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 415177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 41528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41555e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 41565e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 41575e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 41585e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 41595e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 41608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 41618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 41628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41640b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4165456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 41668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 41698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 41708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4173d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4174d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4175d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4176d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4177d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4178d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4179c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4180b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4181b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4182d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4183d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4184d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4185d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 41868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 41892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 41902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 41922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 41932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 41942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 41952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 41962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 41972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 41987794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 41997794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 42007794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 42017794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 42027794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 4203da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4204da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4205da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 42062bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 42072bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 42082bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 42092bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 42102bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 4211da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4212da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4213da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4214456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 421515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 421615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4217da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4218da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 42199d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FPOW: 42208b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 42219d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng // Promote f32 pow(i) to f64 pow(i). Note that this could insert a libcall 42228b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 42238b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42249d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng Tmp2 = Node->getOperand(1); 42259d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng if (Node->getOpcode() == ISD::FPOW) 42269d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng Tmp2 = PromoteOp(Tmp2); 42278b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 42289d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 42298b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 42308b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 42318b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 42328b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 42338b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 42348b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 4235e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_8: 4236e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_16: 4237e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_32: 4238e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_CMP_SWAP_64: { 423928873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); 4240ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4241ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 424228873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), 424328873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getBasePtr(), Tmp2, Tmp3, 4244fd4418fc9b4725c44210c169c4d6500be468ca70Dan Gohman AtomNode->getSrcValue(), 424528873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getAlignment()); 4246ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4247ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4248ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4249ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4250e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_8: 4251e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_8: 4252e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_8: 4253e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_8: 4254e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_8: 4255e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_8: 4256e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_8: 4257e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_8: 4258e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_8: 4259e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_8: 4260e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_8: 4261e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_16: 4262e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_16: 4263e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_16: 4264e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_16: 4265e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_16: 4266e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_16: 4267e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_16: 4268e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_16: 4269e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_16: 4270e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_16: 4271e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_16: 4272e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_32: 4273e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_32: 4274e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_32: 4275e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_32: 4276e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_32: 4277e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_32: 4278e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_32: 4279e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_32: 4280e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_32: 4281e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_32: 4282e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_32: 4283e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_ADD_64: 4284e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_SUB_64: 4285e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_AND_64: 4286e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_OR_64: 4287e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_XOR_64: 4288e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_NAND_64: 4289e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MIN_64: 4290e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_MAX_64: 4291e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMIN_64: 4292e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_LOAD_UMAX_64: 4293e00a8a2a2e11a37fd1ddf2504bd22d225d0994d0Dale Johannesen case ISD::ATOMIC_SWAP_64: { 429428873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); 4295ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 429628873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), 429728873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getBasePtr(), Tmp2, 4298fd4418fc9b4725c44210c169c4d6500be468ca70Dan Gohman AtomNode->getSrcValue(), 429928873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getAlignment()); 4300ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4301ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4302ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4303ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4304ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 430503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 430603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 430703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 43080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 43098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 43100f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 43110f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 431201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 43130f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 43140f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43150f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43160f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 43170f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 431801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 431901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 432001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 432101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 432201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 432301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 432401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 432501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 432601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 432701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 432801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 432901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 43308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 43318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 433201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 433315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 433415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43350f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 43360f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 43378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 43388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 43398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 43408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 434283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isInteger()) { 434315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 434415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 434515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 434615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 43488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 435183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isFloatingPoint() && NoExcessFPPrecision) 435215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 435315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 435501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 435601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4357a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 435801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4359ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 43600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 43620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4363ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4364ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 43650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 43670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4368ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 436901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 437001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 437101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4372a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 437301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 437401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 437501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 43768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 43788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 43798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 43808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 438283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NVT.isInteger() && "Operators don't apply to FP!"); 438323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 438423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 43858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 43898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4390456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 43918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 43938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 43948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 439515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 439615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 43988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 44008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 44018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 440223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4403456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 44048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 44050aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 44060aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4408456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 44090aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 44100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 4411126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands Result = TLI.LowerOperation(Tmp3, DAG); 44120aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 441369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 4414475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 44150aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 44160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 441783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 44180aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 44190aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 442069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 44210aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4422466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 44230aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 44240aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4425456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44260aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 44270aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4428466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4429466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 443062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 443162f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 443262f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 443362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 443455b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4435b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4436d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4437d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 44384c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4439456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44404c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4441466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 44428bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel case ISD::SELECT: { 444303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 444403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 44458bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel 444683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT2 = Tmp2.getValueType(); 44478bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel assert(VT2 == Tmp3.getValueType() 4448ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel && "PromoteOp SELECT: Operands 2 and 3 ValueTypes don't match"); 4449ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // Ensure that the resulting node is at least the same size as the operands' 4450ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // value types, because we cannot assume that TLI.getSetCCValueType() is 4451ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // constant. 4452ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel Result = DAG.getNode(ISD::SELECT, VT2, Node->getOperand(0), Tmp2, Tmp3); 445303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 44548bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel } 44559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 44569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 44579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 44589373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4459456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 44609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4461d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4462d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4463d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4464d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4465d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 446683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 446783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), 4468d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4469d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4470fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4471fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4472fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4473456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4475fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4476fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4477456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4478fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4479fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4480fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4481fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4482456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 44835b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 448483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 4485b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 448600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 448783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), NVT), Tmp1); 4488fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4489fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4490fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 449100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 449283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 449383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), NVT)); 4494fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4495fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4496fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 44977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 44987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 44996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 45004aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 45014aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 45024aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 450303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 450403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 4505ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Result.getNode() && "Didn't set a result!"); 4506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4508456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4509456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4510456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 451103c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 451203c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 451303c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 45143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 45167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 45177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 45187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 4519475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDValue Op) { 45201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 45211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 45221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 4523475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Vec = Op.getOperand(0); 4524475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx = Op.getOperand(1); 45251597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 452683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = Vec.getValueType(); 452783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = TVT.getVectorNumElements(); 45281597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 45307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 45317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 45327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4534475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = TLI.LowerOperation(Op, DAG); 4535ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) 45367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 45377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 45407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 45417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4543844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 45447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 45477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 45511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 45527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 45537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 455455030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 45557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 4556475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 45571597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 4558f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (CIdx->getZExtValue() < NumLoElts) { 45591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 45601597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45611597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 4562f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman Idx = DAG.getConstant(CIdx->getZExtValue() - NumLoElts, 45637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 45641597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45661597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 45671597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 45691597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 45717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 4572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 4573475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 45747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 457683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = Op.getValueType().getSizeInBits()/8; 45777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 45787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 457990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45808e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Idx.getValueType().bitsGT(TLI.getPointerTy())) 4581f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 458290bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4583f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 458490bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 45867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 45881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 45901597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 45911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 45936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 4594475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDValue Op) { 45956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 45966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 4597475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Vec = Op.getOperand(0); 4598475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx = LegalizeOp(Op.getOperand(1)); 45996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 460083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = Vec.getValueType().getVectorNumElements(); 46016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 460283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NumElems == Op.getValueType().getVectorNumElements()) { 46036595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 46047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 46056595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46076595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 4608475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 46096595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 4610f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (CIdx->getZExtValue() < NumElems/2) { 46116595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 46126595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 46136595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 4614f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman Idx = DAG.getConstant(CIdx->getZExtValue() - NumElems/2, 4615f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman Idx.getValueType()); 46166595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46186595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 46196595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 46207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 46214aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 46224aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4623750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4624750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4625750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4626750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4627750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4628475871a144eb604ddaf37503397ba0941442e5fbDan Gohman/// LHS, and the SDValue returned in RHS has a nil SDNode value. 4629475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDValue &LHS, 4630475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &RHS, 4631475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &CC) { 4632475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Result; 4633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 464483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LHS.getValueType().isInteger()) { 464583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 464683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 4647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4674efa533957dfdc29be6de3845158ebd5fa7391485Evan Cheng Tmp1 = LegalizeOp(Tmp1); // Relegalize new nodes. 4675efa533957dfdc29be6de3845158ebd5fa7391485Evan Cheng Tmp2 = LegalizeOp(Tmp2); // Relegalize new nodes. 4676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 46802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 468183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 46822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 46832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 46846518c6ed7ea609696304bbbe848342cacd001f12Evan Cheng RTLIB::Libcall LC1 = RTLIB::UNKNOWN_LIBCALL, LC2 = RTLIB::UNKNOWN_LIBCALL; 46852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 46872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 468856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 46892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 46912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 469256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 46932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 46952b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 469656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 46992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 470056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 47032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 470456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 47072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 470856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4711d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4712d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 47132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 47145efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 47152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 471756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 47182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 47192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 47202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 472156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 47232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 472456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 472756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 47282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 473056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 473356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 473556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 473656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 473756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 47382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 47392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47402b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4741f9516208e57364ab1e7d8748af1f59a2ea5fb572Duncan Sands 4742475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 4743475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { LHS, RHS }; 4744ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Tmp1 = ExpandLibCall(LC1, DAG.getMergeValues(Ops, 2).getNode(), 4745b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4747d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 474856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 47495b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 47505922f561c65968ef1865cc8434d191041e450602Nate Begeman CC); 4751ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif LHS = ExpandLibCall(LC2, DAG.getMergeValues(Ops, 2).getNode(), 4752b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47535b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHS), LHS, Tmp2, 4754d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 47552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4756475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 47572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 475821cacc4de88098a6f2ccfcde18ccec0aa6654f3eEvan Cheng LHS = LegalizeOp(Tmp1); 47592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 47602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 47612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4763475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 4764750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4765638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4766638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4767638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4768638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4769638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4770e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4aDale Johannesen // FCMPU crN, hi1, hi2 4771638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4772e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4aDale Johannesen // FCMPU crN, lo1, lo2 4773638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 4774e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4aDale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 4775e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4aDale Johannesen ISD::SETOEQ); 47765b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); 4777638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4778e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4aDale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 4779e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4aDale Johannesen ISD::SETUNE); 47805b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); 4781638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4782638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4783475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 4784638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4785638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4786638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4787638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4809002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman CST->isNullValue()) || // X < 0 4810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4812750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 48192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4827750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4830750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4831750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4832750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4833750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4834750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4835750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4836750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 48372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 48385b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, 48395922f561c65968ef1865cc8434d191041e450602Nate Begeman LowCC, false, DagCombineInfo); 4840ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 48415b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, LowCC); 48425b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 4844ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 48455b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHSHi), LHSHi, 48465922f561c65968ef1865cc8434d191041e450602Nate Begeman RHSHi,CC); 48472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 4848ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 4849ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 4850002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 4851002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 48522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 48532e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 4854002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 48552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 48562e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 48572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 48582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 48592e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 48602e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 4861475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 48622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 48635b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 4865ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Result.getNode()) 48665b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result=DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48675922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETEQ); 48682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 48692e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 48702e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 4871475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 48722e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4873750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4874750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 48752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4877750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4878750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4879750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 48801401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 48811401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 48821401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 48831401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 4884475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::EmitStackConvert(SDValue SrcOp, 4885475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT SlotVT, 4886475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT) { 488735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 4888364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang unsigned SrcAlign = TLI.getTargetData()->getPrefTypeAlignment( 4889364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang SrcOp.getValueType().getTypeForMVT()); 4890475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FIPtr = DAG.CreateStackTemporary(SlotVT, SrcAlign); 4891364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 4892bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 489369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 4894364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 489583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcSize = SrcOp.getValueType().getSizeInBits(); 489683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SlotSize = SlotVT.getSizeInBits(); 489783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DestSize = DestVT.getSizeInBits(); 4898364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang unsigned DestAlign = TLI.getTargetData()->getPrefTypeAlignment( 4899364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang DestVT.getTypeForMVT()); 49001401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 49011401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 49021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 4903475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store; 4904364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 49051401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 490669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 4907a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0, 4908a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman SlotVT, false, SrcAlign); 49091401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 49101401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 491169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 4912a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0, 4913364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, SrcAlign); 49141401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 491535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 491635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 49171401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 4918364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0, false, DestAlign); 49191401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 49201401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 4921364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT, 4922364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, DestAlign); 492335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 492435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 4925475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 49264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 49274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 4928475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 492969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4930bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 493169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 493269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4933475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 4934a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0); 493569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 4936a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0); 49374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 49384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 49394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4940ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 494107a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4942475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4943ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4944ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 494587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4946033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4947ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 4948475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SplatValue = Node->getOperand(0); 4949f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4950475871a144eb604ddaf37503397ba0941442e5fbDan Gohman // FIXME: it would be far nicer to change this into map<SDValue,uint64_t> 4951f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // and use a bitmask instead of a list of elements. 4952475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::vector<unsigned> > Values; 4953033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 49542eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 49552eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 49562eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 49572eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 49582eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4959033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4960475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue V = Node->getOperand(i); 496189a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4962033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4963ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4964033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 4965475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SplatValue = SDValue(0,0); 49662eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49672eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 49682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 49692eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 49702eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 49712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4972ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4973ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4974ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4975ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4976ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4977ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4978ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4979ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4980ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4981ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4982ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4984ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 498583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4986ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4987033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4988ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4989ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 49904fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman CV.push_back(const_cast<ConstantFP *>(V->getConstantFPValue())); 4991ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 499202a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 49934fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman CV.push_back(const_cast<ConstantInt *>(V->getConstantIntValue())); 4994ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4995ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 499602a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner const Type *OpNTy = 499783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Node->getOperand(0).getValueType().getTypeForMVT(); 4998ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4999ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5000ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 50019d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 5002475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 500350284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 500469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 500550284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman PseudoSourceValue::getConstantPool(), 0, 500650284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman false, Alignment); 5007ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 50082eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 5009ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (SplatValue.getNode()) { // Splat of one value? 50102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 501183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 5012475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getConstant(0, MaskVT.getVectorElementType()); 5013475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::vector<SDValue> ZeroVec(NumElems, Zero); 5014475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5015bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 5016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 50172eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 50184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 50192eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 5020475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LowValVec = 50212eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 50222eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 50232eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 50242eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 50252eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 50262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 50272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 50282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 50292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 5030033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 5031033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 5032033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 5033f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Get the two values in deterministic order. 5034475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val1 = Node->getOperand(1); 5035475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val2; 5036475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::vector<unsigned> >::iterator MI = Values.begin(); 5037f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (MI->first != Val1) 5038f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = MI->first; 5039f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 5040f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = (++MI)->first; 5041f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5042f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If Val1 is an undef, make sure end ends up as Val2, to ensure that our 5043f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // vector shuffle has the undef vector on the RHS. 5044f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val1.getOpcode() == ISD::UNDEF) 5045f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::swap(Val1, Val2); 5046f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5047033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 504883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 504983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskEltVT = MaskVT.getVectorElementType(); 5050475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::vector<SDValue> MaskVec(NumElems); 5051f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5052f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val1. 5053f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val1Elts = Values[Val1]; 5054f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val1Elts.size(); i != e; ++i) 5055f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val1Elts[i]] = DAG.getConstant(0, MaskEltVT); 5056f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5057f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val2. 5058f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val2Elts = Values[Val2]; 5059f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val2Elts.size(); i != e; ++i) 5060f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val2.getOpcode() != ISD::UNDEF) 5061f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getConstant(NumElems, MaskEltVT); 5062f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 5063f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getNode(ISD::UNDEF, MaskEltVT); 5064f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5065475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5066bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 5067033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5068f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If the target supports SCALAR_TO_VECTOR and this shuffle mask, use it. 50694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 50704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 5071f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val1); 5072f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val2); 5073475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Val1, Val2, ShuffleMask }; 5074033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5075033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 5076f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops, 3); 5077033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5078033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5079ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5080ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 5081ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 5082ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 508383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 5084ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 5085475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FIPtr = DAG.CreateStackTemporary(VT); 5086ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5087ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 5088475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Stores; 508983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned TypeByteSize = Node->getOperand(0).getValueType().getSizeInBits()/8; 5090ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 5091ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 5092ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 5093ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 5094ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5095841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 5096ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5097475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 5098ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 5099ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5100786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 51018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 5102ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5103ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5104475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StoreChain; 5105ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 5106bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 5107bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 5108ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 5109ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 5110ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5111ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 5112466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 5113ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 5114ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 51155b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 5116475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op, SDValue Amt, 5117475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 51185b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 5119475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 51205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 51215b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5122475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, Amt }; 512383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHSL.getValueType(); 5124f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 51255b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 51265b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 51275b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 51285b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5129e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5130e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5131e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5132e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5133475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDValue Op,SDValue Amt, 5134475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 5135e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5136e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 513883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5139475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShAmt = LegalizeOp(Amt); 514083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShTy = ShAmt.getValueType(); 514183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned ShBits = ShTy.getSizeInBits(); 514283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned VTBits = Op.getValueType().getSizeInBits(); 514383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5144f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 51457a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5146ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.getNode())) { 5147f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned Cst = CN->getZExtValue(); 5148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5149475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 5150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5151f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5152f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5153f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5154f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5159ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5160ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5161ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5162f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5163f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5164f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5165f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5166f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5167f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5168f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5169f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5170f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5171f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5172f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5173f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5174f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5175f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5176ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5177ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5178ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5179f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5180f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5181f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5182f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5183f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5184f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5185f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5186f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5187f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5188edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5189f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5190f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5191edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5192f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5193edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5194f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5195ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5196ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5197edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5198ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5199f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5200f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5201f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5202f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5203f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5204f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5205f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5206f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5207f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 52080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 52100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 521191dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 521291dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5213ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 52140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52159e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 52169e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 521791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 52180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 52190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 522091dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 52210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 5223475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 52240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 52280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 52290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 52320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 52330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 52360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 52370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 52380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52429e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 52439e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 52449e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 52450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 5246475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 52470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 52480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 52490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 5251475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 52520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 52560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 52570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 52580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 52590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 52620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 52680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5275f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5276e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 527777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 52789c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 527977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 528077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 528177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 528277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 5283475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, 5284475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isSigned, SDValue &Hi) { 52856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 52866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 52876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 52886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 5289475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InChain = DAG.getEntryNode(); 52906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 529177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 529247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 529377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 529483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ArgVT = Node->getOperand(i).getValueType(); 529583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *ArgTy = ArgVT.getTypeForMVT(); 529647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5297d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 529800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 529947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 530077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 5301056292fd738924f3f7703725d8f630983794b5a5Bill Wendling SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), 5302056292fd738924f3f7703725d8f630983794b5a5Bill Wendling TLI.getPointerTy()); 5303edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 53040d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 530583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *RetTy = Node->getValueType(0).getTypeForMVT(); 5306475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::pair<SDValue,SDValue> CallInfo = 530786098bd6a63d2cdf0c9be9ef3151bd2728281fd7Dale Johannesen TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false, 530886098bd6a63d2cdf0c9be9ef3151bd2728281fd7Dale Johannesen CallingConv::C, false, Callee, Args, DAG); 53090d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 53106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 53116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 53126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 53136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 5314475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 53150d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 531677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 531777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5318456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 531999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 532077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 532199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 532299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 532377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 532422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 532522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 532622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53277f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman/// LegalizeINT_TO_FP - Legalize a [US]INT_TO_FP operation. 53287f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman/// 53297f8613e5b8398b688080e3c944ab8c11593e1ed0Dan GohmanSDValue SelectionDAGLegalize:: 53307f8613e5b8398b688080e3c944ab8c11593e1ed0Dan GohmanLegalizeINT_TO_FP(SDValue Result, bool isSigned, MVT DestTy, SDValue Op) { 53317f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman bool isCustom = false; 53327f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Tmp1; 53337f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman switch (getTypeAction(Op.getValueType())) { 53347f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case Legal: 53357f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman switch (TLI.getOperationAction(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, 53367f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Op.getValueType())) { 53377f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman default: assert(0 && "Unknown operation action!"); 53387f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Custom: 53397f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman isCustom = true; 53407f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman // FALLTHROUGH 53417f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Legal: 53427f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = LegalizeOp(Op); 5343ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) 53447f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1); 53457f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman else 53467f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.getNode(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, 53477f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestTy, Tmp1); 53487f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (isCustom) { 53497f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = TLI.LowerOperation(Result, DAG); 5350ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 53517f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 53527f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 53537f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Expand: 53547f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = ExpandLegalINT_TO_FP(isSigned, LegalizeOp(Op), DestTy); 53557f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 53567f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Promote: 53577f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = PromoteLegalINT_TO_FP(LegalizeOp(Op), DestTy, isSigned); 53587f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 53597f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 53607f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 53617f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case Expand: 53627f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = ExpandIntToFP(isSigned, DestTy, Op); 53637f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 53647f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case Promote: 53657f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = PromoteOp(Op); 53667f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (isSigned) { 53677f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 53687f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1, DAG.getValueType(Op.getValueType())); 53697f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } else { 53707f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = DAG.getZeroExtendInReg(Tmp1, 53717f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Op.getValueType()); 53727f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 5373ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) 53747f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1); 53757f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman else 53767f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.getNode(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, 53777f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestTy, Tmp1); 53787f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 53797f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 53807f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 53817f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return Result; 53827f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman} 538322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53844c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 53854c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 5386475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize:: 5387475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntToFP(bool isSigned, MVT DestTy, SDValue Source) { 538883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SourceVT = Source.getValueType(); 5389034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman bool ExpandSource = getTypeAction(SourceVT) == Expand; 539022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53917f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman // Expand unsupported int-to-fp vector casts by unrolling them. 53927f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (DestTy.isVector()) { 53937f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (!ExpandSource) 53947f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return LegalizeOp(UnrollVectorOp(Source)); 53957f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT DestEltTy = DestTy.getVectorElementType(); 53967f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (DestTy.getVectorNumElements() == 1) { 53977f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Scalar = ScalarizeVectorOp(Source); 53987f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Result = LegalizeINT_TO_FP(SDValue(), isSigned, 53997f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestEltTy, Scalar); 54007f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return DAG.getNode(ISD::BUILD_VECTOR, DestTy, Result); 54017f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 54027f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Lo, Hi; 54037f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SplitVectorOp(Source, Lo, Hi); 54047f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT SplitDestTy = MVT::getVectorVT(DestEltTy, 54057f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestTy.getVectorNumElements() / 2); 54067f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue LoResult = LegalizeINT_TO_FP(SDValue(), isSigned, SplitDestTy, Lo); 54077f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue HiResult = LegalizeINT_TO_FP(SDValue(), isSigned, SplitDestTy, Hi); 5408efa533957dfdc29be6de3845158ebd5fa7391485Evan Cheng return LegalizeOp(DAG.getNode(ISD::CONCAT_VECTORS, DestTy, LoResult, 5409efa533957dfdc29be6de3845158ebd5fa7391485Evan Cheng HiResult)); 54107f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 54117f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 54129845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc. 54139845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng if (!isSigned && SourceVT != MVT::i32) { 541434bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman // The integer value loaded will be incorrectly if the 'sign bit' of the 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 541622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 5417475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi; 5418034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5419475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo; 5420034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, Lo, Hi); 5421034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, Lo, Hi); 5422034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } else { 5423034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman // The comparison for the sign bit will use the entire operand. 5424034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Hi = Source; 5425034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 542622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 542722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 542822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 5429475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignedConv = ExpandIntToFP(true, DestTy, Source); 543022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5431475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignSet = DAG.getSetCC(TLI.getSetCCResultType(Hi), Hi, 543222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 543322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 5434475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 5435475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 543622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 543722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 543822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 543934bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 544022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5441475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 544250284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 544322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 544487a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 5445475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FudgeInReg; 544622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 544769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 544850284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman PseudoSourceValue::getConstantPool(), 0, 544950284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman false, Alignment); 54508e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands else if (DestTy.bitsGT(MVT::f32)) 54514c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5452118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 545369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 54543069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 545550284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman MVT::f32, false, Alignment); 54569e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 54579e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 54589e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 545983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SCVT = SignedConv.getValueType(); 54604c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 54614c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 54624c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 546383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SCVT.getSizeInBits() != DestTy.getSizeInBits()) { 546483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SCVT.getSizeInBits() * 2 == DestTy.getSizeInBits()); 5465d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman SignedConv = DAG.getNode(ISD::BUILD_PAIR, DestTy, 54664c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 54674c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 54684c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 54694c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 547022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 547122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 547222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 547322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 5474d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman switch (TLI.getOperationAction(ISD::SINT_TO_FP, SourceVT)) { 547522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 547622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 547722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 547822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 547922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 5480475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 5482ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NV.getNode()) 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 5490034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5491475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SrcLo, SrcHi; 5492034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, SrcLo, SrcHi); 5493034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, SrcLo, SrcHi); 5494034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 549522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5496b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = isSigned ? 5497b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::getSINTTOFP(SourceVT, DestTy) : 5498b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::getUINTTOFP(SourceVT, DestTy); 5499b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unknown int value type"); 5500b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands 55016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 5502475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiPart; 5503ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDValue Result = ExpandLibCall(LC, Source.getNode(), isSigned, HiPart); 5504ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getValueType() != DestTy && HiPart.getNode()) 5505a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Result = DAG.getNode(ISD::BUILD_PAIR, DestTy, Result, HiPart); 5506a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman return Result; 550722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 5513475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 5514475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0, 5515475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT) { 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 551923594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 5520475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackSlot = DAG.CreateStackTemporary(MVT::f64); 552123594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 5523475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5525475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = StackSlot; 5526475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5527408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5528408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5529408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 5531475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0Mapped; 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 553322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 5534475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignBit = DAG.getConstant(0x80000000u, MVT::i32); 553522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 553622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 553722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 553922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5540475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store1 = DAG.getStore(DAG.getEntryNode(), 55418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 5543475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 5545475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 554622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5547475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 554822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 5549475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Bias = DAG.getConstantFP(isSigned ? 555022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 555122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 555222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 555322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 5554475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 5556475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 555722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 555822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 556022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 55618e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsLT(MVT::f64)) { 55620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 55630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 55648e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsGT(MVT::f64)) { 5565118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 556622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 556722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 556822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 556922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 5570475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 557122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignSet = DAG.getSetCC(TLI.getSetCCResultType(Op0), Op0, 557322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 557422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 5575475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 5576475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 557722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 557822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 557922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 558022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 558122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 558222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 558383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (Op0.getValueType().getSimpleVT()) { 558422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 558522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 558622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 558722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 558822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 558922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 559022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 559147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 559222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5593475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 559450284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 559522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 559687a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 5597475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FudgeInReg; 559822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 559969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 560050284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman PseudoSourceValue::getConstantPool(), 0, 560150284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman false, Alignment); 560222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 560369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 560469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 560569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 56063069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 560750284d81f863a6576582e1a171a22eb0f012ddf3Dan Gohman MVT::f32, false, Alignment)); 560822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 560922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 561022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 561122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 561222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 561322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 561422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 561522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 561622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 561722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 5618475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDValue LegalOp, 5619475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT, 5620475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isSigned) { 562122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 562283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = LegalOp.getValueType(); 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 562422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 562522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 562722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 562883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 562983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() && "Ran out of possibilities!"); 563022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 563122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 563222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 563522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 563622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 563722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 564122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 564322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 564422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 564522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 564622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 564722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 564822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 564922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 565022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 565122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 565222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 565322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 565422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 565522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 565622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 565722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 565822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 565922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 566022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 566122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 566222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 566322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 566422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 566522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 566677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 566777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 566822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 566922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 567022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 567122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 567222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 5673475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDValue LegalOp, 5674475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT, 5675475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isSigned) { 567622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 567783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewOutTy = DestVT; 56789c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5680e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 568222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 568383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewOutTy = (MVT::SimpleValueType)(NewOutTy.getSimpleVT()+1); 568483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewOutTy.isInteger() && "Ran out of possibilities!"); 568566de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 568622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 568722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 568822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 569022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 569622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5698e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 570122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 570222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 570322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 570422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 570522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 570622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 570722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 570822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5709e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 571022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 57110d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 571222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5713a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5714a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 571527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 571627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 5717475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 5718126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 571927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 572027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 572127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 572227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 5723ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Operation = SDValue(TLI.ReplaceNodeResults(Operation.getNode(), DAG), 0); 5724ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Operation.getNode() && "Didn't return anything"); 572527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 5726126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 572727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 572827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 572927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 573022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 573113689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 573222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 573322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 5734475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBSWAP(SDValue Op) { 573583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 573683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SHVT = TLI.getShiftAmountTy(); 5737475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 573883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (VT.getSimpleVT()) { 573922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 574022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 574122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 574222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 574322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 574422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 574522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 574622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 574722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 574822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 574922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 575022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 575122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 575222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 575322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 575422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 575522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 575622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 575722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 575822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 575922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 576022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 576122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 576222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 576322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 576422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 576522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 576622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 576722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 576822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 576922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 577022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 577122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 577222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 577322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 577422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 577522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 57760d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 577777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5778edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 577922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 578022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 5781475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op) { 578222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 578322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 578422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 578522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 578622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 578722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 578822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 578922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 579083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 579183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 579283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 579322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 579422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 5795475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2 = DAG.getConstant(mask[i], VT); 5796475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); 579722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 579822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 579922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 580022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 580122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 580222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 580322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 580422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 580522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 580622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 580722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 580822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 580922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 581022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 581122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 581222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 581383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 581483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 581583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 581622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 5817475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); 581822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 581922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 582022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 582122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 582222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 582322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 582422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 582522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 582622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 582722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 582883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 5829475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2 = DAG.getConstant(~0ULL, VT); 5830475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getNode(ISD::AND, VT, 583122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 583222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 583322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 583422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 583522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 583622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 583783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), VT), 583822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 583922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 584022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 584122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 584222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5843e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5844475871a144eb604ddaf37503397ba0941442e5fbDan Gohman/// ExpandOp - Expand the specified SDValue into its two component pieces 58453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 5846929d3eb171cd95a7fb353ef71a460d2061be4e6cDan Gohman/// LegalizedNodes map is filled in for any results that are not expanded, the 58473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 58483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 5849475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){ 585083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 585183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 5852ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *Node = Op.getNode(); 58533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 58548e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(((NVT.isInteger() && NVT.bitsLT(VT)) || VT.isFloatingPoint() || 585583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.isVector()) && "Cannot expand to FP value or to larger int value!"); 58563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 58576fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 5858475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, std::pair<SDValue, SDValue> >::iterator I 58596fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 58606fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 58616fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 58626fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 58636fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 58643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 58653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 58663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5867348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5868348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 58696eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 58706eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 58716eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 58726eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5873475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SrcLo, SrcHi, Src; 5874fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5875fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5876475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = TLI.LowerOperation( 5877fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 5878ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Result.getNode()->getOpcode() == ISD::BUILD_PAIR); 5879ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Lo = Result.getNode()->getOperand(0); 5880ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = Result.getNode()->getOperand(1); 58816eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 58826eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 58836eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5884348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5885e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 588639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5887e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 58883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 58893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 58901953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 58911953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 5892f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) 58931953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 589418714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 589525f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 589625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 589725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 589825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 589925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5900fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5901fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5902fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5903fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 59043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 590583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5906050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); 5907050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); 5908050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); 59093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5911004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5912004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5913a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 59147111b02c734c992b8c97d9918118768026dad79eDale Johannesen APInt api = CFP->getValueAPF().bitcastToAPInt(); 5915a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5916a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5917a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5918a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5919a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5920a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5921279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 59229f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 59239f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5924004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5925004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5926d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 59278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 59288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 59298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5930d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 593127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 593227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5933c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5934c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5935c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5936c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 593727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 593899a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif assert(Op.getResNo() == 0 && Node->getNumValues() == 2 && 593927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 594027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 594127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 594227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 594327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 594427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 594558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 594658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 594758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 59484bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 59494bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 59504bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 59514bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 59524bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 595358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 595483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits()-1, 595558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 595658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5957d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5958d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5959d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5960475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5961d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5962d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5963d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5964d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5965d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5966edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5967edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 59689b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 59699b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 59709b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5971edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5972edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5973edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 597439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 597539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 59763becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 5977475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 5978475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 5979475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TopNotZero = DAG.getSetCC(TLI.getSetCCResultType(HLZ), HLZ, BitsC, 59807cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 5981475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 598239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 598339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 598439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 598539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 598639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 598739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 598839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 598939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 599039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 59913becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 5992475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 5993475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 5994475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue BotNotZero = DAG.getSetCC(TLI.getSetCCResultType(LTZ), LTZ, BitsC, 59957cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 5996475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 599739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 599839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 599939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 600039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 600139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 600239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 6003edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 6004acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 6005475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = Node->getOperand(0); // Legalize the chain. 6006475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = Node->getOperand(1); // Legalize the pointer. 6007acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 6008acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 6009acc398c195a697795bff3245943d104eb19192b9Nate Begeman 6010acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 60118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 6012acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 60130753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 6014acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 6015acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 6016acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 6017acc398c195a697795bff3245943d104eb19192b9Nate Begeman 60183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 6019466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 6020475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = LD->getChain(); // Legalize the chain. 6021475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LD->getBasePtr(); // Legalize the pointer. 6022466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 60237f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman const Value *SV = LD->getSrcValue(); 6024d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 6025d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 6026d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 6027466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6028466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 60297f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, SV, SVOffset, 6030d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 6031004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 6032004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 6033004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 6034475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Lo.getValue(1))); 60359f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 60369f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 60379f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 6038004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 6039004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 6040466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6041466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 604283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = Lo.getValueType().getSizeInBits()/8; 6043466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 60440bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 60457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6046dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 60477f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, SV, SVOffset, 6048d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 6049466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6050466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 6051466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 6052475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6053466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 6054466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6055466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 6056466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 60570753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 6058466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 6059466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 606083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = LD->getMemoryVT(); 6061548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 6062b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 6063b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 6064548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 60657f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Load = DAG.getLoad(EVT, Ch, Ptr, SV, 6066d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 6067548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 6068475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Load.getValue(1))); 6069548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 6070548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 6071548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 6072466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6073466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 60747f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, SV, 6075d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 6076466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 60777f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, SV, 6078d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 6079d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 6080466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6081466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 6082475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Lo.getValue(1))); 6083466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6084466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 6085466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 6086466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 608783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 6088466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 6089466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 6090466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 6091466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 6092466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 6093466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 6094466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 6095466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 6096466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 6097466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 60983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 61003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 61013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 61023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 6103475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 61043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 61053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 61063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 61073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 61083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 61093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 61103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 6111475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 61123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 61133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 611419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 611519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 6116456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 611719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 611819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 61193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 61203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 61219373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 6122475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TL, TH, FL, FH; 61239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 61249373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 612519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 612619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 61279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 61289373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 612919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 613019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 613119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 61329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 61339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 61348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 613513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 61368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 613713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 613813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 613913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 61403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 61413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 61423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 61438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6144edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 61453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 61463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 614783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 61488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 61498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 61503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 61513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 61528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 61533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 61543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 61558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6156edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 61573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 61583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 61593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 616035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 61614c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 61624c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 6163475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLo; 61644c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 61654c948eb373779718e5be36d7674382b52114bf65Chris Lattner 61664c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 61674c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 61684c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 61694c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 61704c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 61714c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 61724c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 61734c948eb373779718e5be36d7674382b52114bf65Chris Lattner 617435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6175475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp; 6176f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6177f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6178f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6179f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6180f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6181f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6182f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6183f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6184f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6185f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 61861a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 618713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 618813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 618919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 619019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 61917b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 61927b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 61937b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 61947b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 61957b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 619683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT0 = Node->getOperand(0).getValueType(); 61977b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 61987b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 61991a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 62001a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 62011a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6202f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6203ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp.getNode() == 0) 62041401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6205f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 620635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 620735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 620835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6209f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 621027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6211308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6212308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6213308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 6214475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = TLI.LowerOperation(Op, DAG); 6215ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif assert(Tmp.getNode() && "Node must be custom expanded!"); 621627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6217475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), // Remember we legalized the chain. 621827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6219f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 622027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6221f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 62221b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen case ISD::ATOMIC_CMP_SWAP_64: { 62231b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen // This operation does not need a loop. 62241b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen SDValue Tmp = TLI.LowerOperation(Op, DAG); 62251b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen assert(Tmp.getNode() && "Node must be custom expanded!"); 62261b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen ExpandOp(Tmp.getValue(0), Lo, Hi); 62271b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen AddLegalizedOperand(SDValue(Node, 1), // Remember we legalized the chain. 62281b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen LegalizeOp(Tmp.getValue(1))); 62291b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen break; 62301b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen } 62311b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen 623248c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen case ISD::ATOMIC_LOAD_ADD_64: 623348c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen case ISD::ATOMIC_LOAD_SUB_64: 623448c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen case ISD::ATOMIC_LOAD_AND_64: 623548c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen case ISD::ATOMIC_LOAD_OR_64: 623648c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen case ISD::ATOMIC_LOAD_XOR_64: 623748c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen case ISD::ATOMIC_LOAD_NAND_64: 62381b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen case ISD::ATOMIC_SWAP_64: { 62391b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen // These operations require a loop to be generated. We can't do that yet, 62401b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen // so substitute a target-dependent pseudo and expand that later. 624148c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen SDValue In2Lo, In2Hi, In2; 624248c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen ExpandOp(Op.getOperand(2), In2Lo, In2Hi); 624348c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen In2 = DAG.getNode(ISD::BUILD_PAIR, VT, In2Lo, In2Hi); 62441b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen AtomicSDNode* Anode = cast<AtomicSDNode>(Node); 62451b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen SDValue Replace = 62461b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen DAG.getAtomic(Op.getOpcode(), Op.getOperand(0), Op.getOperand(1), In2, 62471b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen Anode->getSrcValue(), Anode->getAlignment()); 62481b54c7fe9b034a6450af8596231ad5368b617725Dale Johannesen SDValue Result = TLI.LowerOperation(Replace, DAG); 624948c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen ExpandOp(Result.getValue(0), Lo, Hi); 625048c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen // Remember that we legalized the chain. 625148c1bc2ace6481d3272ab5c18e1f19352c563be8Dale Johannesen AddLegalizedOperand(SDValue(Node,1), LegalizeOp(Result.getValue(1))); 6252d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth break; 6253d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth } 6254d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 62554e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 62564e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 625756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 625880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6259475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op; 6260f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6261f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 62628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 62638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6264f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6265d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6266f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6267f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 626880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 626980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 6270ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Op.getNode()) { 627107dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 627207dffd6af673c73352150583150b242a93694f00Chris Lattner break; 627307dffd6af673c73352150583150b242a93694f00Chris Lattner } 627480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6275d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6276b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Node->getOperand(0).getValueType(), 6277b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands VT); 6278b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected uint-to-fp conversion!"); 6279b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 62804e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 628156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6282d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 628356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 628480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 6285475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op; 62868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 62878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 62888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 62898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 62908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62928137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 62938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 6295ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Op.getNode()) { 629607dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 629707dffd6af673c73352150583150b242a93694f00Chris Lattner break; 629807dffd6af673c73352150583150b242a93694f00Chris Lattner } 629980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6300d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6301b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Node->getOperand(0).getValueType(), 6302b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands VT); 6303b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 6304b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 63054e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 630656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 63074e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 630805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 630950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6310475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); 631150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 6312475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 631350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 6314ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Op.getNode()) { 631550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 631650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 631750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 631850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 631950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 632050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 632150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 632279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 632379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 632479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 6325002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if (ShAmt->getAPIntValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 632679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 6327475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2], HiOps[3]; 632879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 632979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 633079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 633179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 633279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 633379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 633479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 633579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 633679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 633779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 633879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 633979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6340e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6341348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6342e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63434759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63444759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 634505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 634605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 634705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 634805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6349348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63504759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63514759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63524759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6353e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6354460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SHL_I64, Node, false/*left shift=unsigned*/, Hi); 6355e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 635605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6357e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 635805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 635950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6360475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); 636150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 6362475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 636350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 6364ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Op.getNode()) { 636550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 636650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 636750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 636850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 636950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 637050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 637150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6372e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6373348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6374e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63754759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63764759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 637705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 637805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 637905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 638005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6381348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63824759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63834759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63844759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6385e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6386460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRA_I64, Node, true/*ashr is signed*/, Hi); 6387e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 638805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 638905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 639005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 639150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6392475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); 639350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 6394475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 639550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 6396ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Op.getNode()) { 639750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 639850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 639950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 640050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 640150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 640250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 640350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6404e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6405348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6406e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 64074759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 64084759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 640905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 641005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 641105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 641205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6413348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 64144759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 64154759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 64164759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6417e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6418460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRL_I64, Node, false/*lshr is unsigned*/, Hi); 6419e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 642005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6421e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6422edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 64238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 64248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 64258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 64268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 6427475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = TLI.LowerOperation(Op, DAG); 6428ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Result.getNode()) { 642969bfb15ecd71881ec8d01be94af99b6d90d2fe01Duncan Sands ExpandOp(Result, Lo, Hi); 64308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 64318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 64328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 64338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 6434475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 64358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 64368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 643779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6438475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2], HiOps[3]; 6439bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6440bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6441bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6442bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 64432163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth 64445c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth //cascaded check to see if any smaller size has a a carry flag. 64455c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth unsigned OpV = Node->getOpcode() == ISD::ADD ? ISD::ADDC : ISD::SUBC; 64465c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth bool hasCarry = false; 64472163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth for (unsigned BitSize = NVT.getSizeInBits(); BitSize != 0; BitSize /= 2) { 64482163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth MVT AVT = MVT::getIntegerVT(BitSize); 64492163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth if (TLI.isOperationLegal(OpV, AVT)) { 64502163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth hasCarry = true; 64512163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth break; 64522163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth } 64532163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth } 64542163ca11d576059883d1c289e5c4d8163d123270Andrew Lenharth 64555c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth if(hasCarry) { 645640d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth if (Node->getOpcode() == ISD::ADD) { 645740d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 645840d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth HiOps[2] = Lo.getValue(1); 645940d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 646040d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth } else { 646140d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 646240d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth HiOps[2] = Lo.getValue(1); 646340d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 646440d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth } 646540d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth break; 6466551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 646740d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth if (Node->getOpcode() == ISD::ADD) { 646840d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Lo = DAG.getNode(ISD::ADD, VTList, LoOps, 2); 646940d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Hi = DAG.getNode(ISD::ADD, VTList, HiOps, 2); 64705c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth SDValue Cmp1 = DAG.getSetCC(TLI.getSetCCResultType(Lo), 64715c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth Lo, LoOps[0], ISD::SETULT); 647240d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth SDValue Carry1 = DAG.getNode(ISD::SELECT, NVT, Cmp1, 647340d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth DAG.getConstant(1, NVT), 647440d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth DAG.getConstant(0, NVT)); 64755c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth SDValue Cmp2 = DAG.getSetCC(TLI.getSetCCResultType(Lo), 64765c9cc1392cfdea2281431de987f32545a3491fb6Andrew Lenharth Lo, LoOps[1], ISD::SETULT); 647740d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth SDValue Carry2 = DAG.getNode(ISD::SELECT, NVT, Cmp2, 647840d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth DAG.getConstant(1, NVT), 647940d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Carry1); 648040d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Hi = DAG.getNode(ISD::ADD, NVT, Hi, Carry2); 648140d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth } else { 648240d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Lo = DAG.getNode(ISD::SUB, VTList, LoOps, 2); 648340d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Hi = DAG.getNode(ISD::SUB, VTList, HiOps, 2); 648440d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth SDValue Cmp = DAG.getSetCC(NVT, LoOps[0], LoOps[1], ISD::SETULT); 648540d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth SDValue Borrow = DAG.getNode(ISD::SELECT, NVT, Cmp, 648640d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth DAG.getConstant(1, NVT), 648740d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth DAG.getConstant(0, NVT)); 648840d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth Hi = DAG.getNode(ISD::SUB, NVT, Hi, Borrow); 648940d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth } 649040d513960a50664c3c4130a40612a5e3673615ceAndrew Lenharth break; 6491551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 64928137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6493b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6494b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6495b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6496b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6497475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 6498b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6499b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6500b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6501475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 6502475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 6503b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6504b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6505b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6506b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6507b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6508b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6509b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6510b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6511b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6512b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6513b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6514b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6515b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6516b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6517b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6518b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6519b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6520475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 6521b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6522b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6523b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6524475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6525475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 6526b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6527b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6528b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6529b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6530b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6531b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6532b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6533b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6534b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6535c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 65367d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 65377d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 6538475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue New = TLI.LowerOperation(Op, DAG); 6539ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (New.getNode()) { 65408829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 65417d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 65427d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 65437d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 65447d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 65453f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 65463f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6547525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6548525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6549525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6550475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 6551c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6552c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 65532e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 65542e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6555525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6556525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 655776c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 655876c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman if (DAG.MaskedValueIsZero(Node->getOperand(0), HighMask) && 655976c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman DAG.MaskedValueIsZero(Node->getOperand(1), HighMask)) { 6560525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6561525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6562525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6563525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6564ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 6565525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6566525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6567525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6568525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6569525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6570525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6571525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6572525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6573525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 65742e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6575525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6576525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6577525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6578525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6579ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 6580525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6581525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6582525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6583525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6584525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6585525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6586525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6587525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6588525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6589525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6590525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6591475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6592525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6593525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6594525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 659556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 659656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 659756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 659856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6599a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 660056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 66018eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 66028eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 66038eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 66048eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 66058eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 66068eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 66078eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 66088eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 66098eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6610c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 66113f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6612525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 6613460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::MUL_I64, Node, false/*sign irrelevant*/, Hi); 6614c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6615c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 661656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 6617460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SDIV_I64, Node, true, Hi); 661856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 661956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 6620460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UDIV_I64, Node, true, Hi); 662156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 662256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 6623460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SREM_I64, Node, true, Hi); 662456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 662556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 6626460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UREM_I64, Node, true, Hi); 662756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 66285c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 66291a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6630460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::ADD_F32, 6631460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F64, 6632460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F80, 6633460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_PPCF128), 663456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 66351a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 66361a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6637460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::SUB_F32, 6638460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F64, 6639460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F80, 6640460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_PPCF128), 664156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 66421a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 66431a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6644460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::MUL_F32, 6645460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F64, 6646460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F80, 6647460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_PPCF128), 664856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 66491a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 66501a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6651460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::DIV_F32, 6652460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F64, 6653460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F80, 6654460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_PPCF128), 665556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 66561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6657b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands case ISD::FP_EXTEND: { 6658ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6659ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6660ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6661ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6662ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6663ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6664ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6665ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6666ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6667ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6668ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6669b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPEXT(Node->getOperand(0).getValueType(), VT); 6670b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND!"); 6671b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, true, Hi); 66721a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6673b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands } 6674b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands case ISD::FP_ROUND: { 6675b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPROUND(Node->getOperand(0).getValueType(), 6676b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands VT); 6677b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND!"); 6678b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, true, Hi); 66791a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6680b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands } 66814b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng case ISD::FSQRT: 66824b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng case ISD::FSIN: 66834b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng case ISD::FCOS: 66847794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 66857794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 66867794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 66877794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 66887794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 66892bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 66902bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 66912bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 66922bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 66932bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 66949d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FPOW: 66959d24ac56e1f9f1025a473d6b013557431fd05b7cEvan Cheng case ISD::FPOWI: { 669656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 669798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 669856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6699007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6700007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 670156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 670256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6703007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6704007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 670556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 670656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6707007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6708007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 670956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 67107794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 67117794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::LOG_F32, RTLIB::LOG_F64, 67127794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::LOG_F80, RTLIB::LOG_PPCF128); 67137794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 67147794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 67157794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::LOG2_F32, RTLIB::LOG2_F64, 67167794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::LOG2_F80, RTLIB::LOG2_PPCF128); 67177794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 67187794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 67197794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::LOG10_F32, RTLIB::LOG10_F64, 67207794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::LOG10_F80, RTLIB::LOG10_PPCF128); 67217794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 67227794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 67237794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::EXP_F32, RTLIB::EXP_F64, 67247794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::EXP_F80, RTLIB::EXP_PPCF128); 67257794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 67267794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 67277794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen LC = GetFPLibCall(VT, RTLIB::EXP2_F32, RTLIB::EXP2_F64, 67287794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen RTLIB::EXP2_F80, RTLIB::EXP2_PPCF128); 67297794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen break; 67302bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 67312bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, 67322bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128); 67332bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 67342bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 67352bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, 67362bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128); 67372bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 67382bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 67392bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::CEIL_F32, RTLIB::CEIL_F64, 67402bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128); 67412bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 67422bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 67432bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::RINT_F32, RTLIB::RINT_F64, 67442bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::RINT_F80, RTLIB::RINT_PPCF128); 67452bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 67462bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 67472bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64, 67482bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128); 67492bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 67504b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng case ISD::FPOW: 67514b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 67524b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng RTLIB::POW_PPCF128); 67534b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng break; 67544b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng case ISD::FPOWI: 67554b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, RTLIB::POWI_F80, 67564b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng RTLIB::POWI_PPCF128); 67574b88702ac3fac540b970e2d92f3dcc5071f16a84Evan Cheng break; 675898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 675998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6760460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false, Hi); 676198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 676298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6763966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6764f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6765475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp; 6766f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6767f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6768f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6769f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6770f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6771f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6772f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6773f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6774475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = (VT == MVT::f64) 6775966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6776966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6777966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6778966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6779966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6780966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6781966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6782966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6783966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6784966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6785f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6786f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6787f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6788f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6789f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6790f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6791475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = (VT == MVT::f64) 6792966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6793966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6794966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6795966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6796966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6797966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6798966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6799966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6800966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6801912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6802912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6803912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6804912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6805912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6806912095becac923ff614d7b07728eb345ada67765Evan Cheng } 68077df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 68087df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 68097df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 681083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(0).getValueType(); 6811cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6812cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // Promote the operand if needed. Do this before checking for 6813cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // ppcf128 so conversions of i16 and i8 work. 6814cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen if (getTypeAction(SrcVT) == Promote) { 6815475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = PromoteOp(Node->getOperand(0)); 6816cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Tmp = isSigned 6817cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 6818cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen DAG.getValueType(SrcVT)) 6819cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen : DAG.getZeroExtendInReg(Tmp, SrcVT); 6820ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Node = DAG.UpdateNodeOperands(Op, Tmp).getNode(); 6821cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SrcVT = Node->getOperand(0).getValueType(); 6822cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen } 6823cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6824a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::ppcf128 && SrcVT == MVT::i32) { 6825f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6826ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6827ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6828ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6829ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6830ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6831f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6832ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6833ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6834ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6835ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 68366e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6837ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6838ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6839ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6840ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6841ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6842ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6843ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6844ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6845ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6846ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6847ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6848ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 68496e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 68506e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6851f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 68526e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 68536e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 68546e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 68556e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 68566e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 68576e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 68586e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 68596e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 68606e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 68616e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 68626e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 68636e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 68646e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 68656e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 68666e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 68677df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 6868a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 6869a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Node->getOperand(0)); 6870110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 68716ad2f930da0ebadb0e000397cea8384c650877bbEvan Cheng // float to i32 etc. can be 'expanded' to a single node. 6872110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng ExpandOp(Lo, Lo, Hi); 68737df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 68747df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 687598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 68763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 687783397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 687883397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 687983397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 688083397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 6881ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Hi.getNode()) 688213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 688313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 688483397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 688505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 688605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 68876b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman bool isNew = 68886b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 688905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 68903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 68913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 68927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 68937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6894475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::SplitVectorOp(SDValue Op, SDValue &Lo, 6895475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 689683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Cannot split non-vector type!"); 6897ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *Node = Op.getNode(); 689883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElements = Op.getValueType().getVectorNumElements(); 6899c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 69005db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 690183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewEltVT = Op.getValueType().getVectorElementType(); 69025db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 69035db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 69045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 69055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 690683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Lo = MVT::getVectorVT(NewEltVT, NewNumElts_Lo); 690783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Hi = MVT::getVectorVT(NewEltVT, NewNumElts_Hi); 69085db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6909c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6910475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::pair<SDValue, SDValue> >::iterator I 6911c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6912c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6913c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6914c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6915c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6916c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6917c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6918c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6919e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6920e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 692139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6922e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6923e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6924daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6925daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6926daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6927daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 69287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 69297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 69307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 69317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 69329fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 69336867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (ConstantSDNode *Idx = dyn_cast<ConstantSDNode>(Node->getOperand(2))) { 69346867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Node->getOperand(0), Lo, Hi); 6935f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned Index = Idx->getZExtValue(); 6936475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ScalarOp = Node->getOperand(1); 69376867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (Index < NewNumElts_Lo) 69386867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 69396867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index)); 69406867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman else 69416867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 69426867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index - NewNumElts_Lo)); 69436867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman break; 69446867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman } 6945475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = PerformInsertVectorEltInMemory(Node->getOperand(0), 69466867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(1), 69476867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(2)); 69486867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Tmp, Lo, Hi); 69499fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 69509fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 69516c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 69526c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 6953475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = Node->getOperand(2); 6954475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 695583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 69566c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 69576c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 69586c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 69596c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 69606c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 6961475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue IdxNode = Mask.getOperand(i); 69625922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 69635922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 69645922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 69655922f561c65968ef1865cc8434d191041e450602Nate Begeman } 6966f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getZExtValue(); 6967475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InVec = Node->getOperand(0); 69686c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 69696c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 69706c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 69716c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 69726c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 69736c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 69746c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 69756c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 69766c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 69776c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 69786c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 6979475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue IdxNode = Mask.getOperand(i); 69805922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 69815922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 69825922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 69835922f561c65968ef1865cc8434d191041e450602Nate Begeman } 6984f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getZExtValue(); 6985475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InVec = Node->getOperand(0); 69866c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 69876c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 69886c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 69896c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 69906c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 69916c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 69926c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 699392879f3a9e6625d4a17a3d93e6250a59b0497660Mon P Wang Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &Ops[0], Ops.size()); 69946c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 69956c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 69967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6997475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> LoOps(Node->op_begin(), 69985db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 69995db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 7000c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7001475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 70027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 70035db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 7004c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7005c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 70067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 70075db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 70087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 70097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 70107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 70117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 70127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 7013475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> LoOps(Node->op_begin(), 70147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 70155db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 70166595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 7017475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> HiOps(Node->op_begin()+NewNumSubvectors, 70187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 70195db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 70207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 70216595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 7023c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 7024475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Cond = Node->getOperand(0); 7025c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 7026475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 7027c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 7028c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 7029c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 703083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Cond.getValueType().isVector()) { 7031c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 7032475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CL, CH; 7033c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 70345db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 70355db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 7036c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 7037c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 70385db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 70395db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 7040c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 7041c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 7042c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 704380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner case ISD::SELECT_CC: { 7044475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CondLHS = Node->getOperand(0); 7045475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CondRHS = Node->getOperand(1); 7046475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CondCode = Node->getOperand(4); 704780c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner 7048475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 704980c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SplitVectorOp(Node->getOperand(2), LL, LH); 705080c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SplitVectorOp(Node->getOperand(3), RL, RH); 705180c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner 705280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner // Handle a simple select with vector operands. 705380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Lo = DAG.getNode(ISD::SELECT_CC, NewVT_Lo, CondLHS, CondRHS, 705480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner LL, RL, CondCode); 705580c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Hi = DAG.getNode(ISD::SELECT_CC, NewVT_Hi, CondLHS, CondRHS, 705680c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner LH, RH, CondCode); 705780c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner break; 705880c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner } 7059b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 7060475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 7061b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(0), LL, LH); 7062b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(1), RL, RH); 7063b43e9c196542acc80c9e4643809661065710848fNate Begeman Lo = DAG.getNode(ISD::VSETCC, NewVT_Lo, LL, RL, Node->getOperand(2)); 7064b43e9c196542acc80c9e4643809661065710848fNate Begeman Hi = DAG.getNode(ISD::VSETCC, NewVT_Hi, LH, RH, Node->getOperand(2)); 7065b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 7066b43e9c196542acc80c9e4643809661065710848fNate Begeman } 70677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 70687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 70697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 70707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 70717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 70727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 70737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 70747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 70757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 7076826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 70777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 70787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 7079089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 7080089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 7081089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 7082089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 7083475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 7084c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 7085c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 7086c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70875db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 70885db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 7089c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7090c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 70917f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_ROUND: 7092826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 7093475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue L, H; 7094826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 7095826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 70965db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 70975db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 7098826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 7099826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 7100826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 7101826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 7102826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 7103826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 7104826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 7105826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 7106826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 7107b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 71087794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 71097794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 71107794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 71117794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 71127794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 7113b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 7114b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 7115b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 71167f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::UINT_TO_FP: 71177f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::TRUNCATE: 71187f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ANY_EXTEND: 71197f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::SIGN_EXTEND: 71207f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ZERO_EXTEND: 71217f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_EXTEND: { 7122475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue L, H; 7123826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 7124826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 71255db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 71265db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 7127826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 7128826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 71297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 71307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 7131475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = LD->getChain(); 7132475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LD->getBasePtr(); 71337f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman ISD::LoadExtType ExtType = LD->getExtensionType(); 71347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 71357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 71367f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemoryVT = LD->getMemoryVT(); 71377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 71387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 71397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 71407f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman assert(LD->isUnindexed() && "Indexed vector loads are not supported yet!"); 71417f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Offset = DAG.getNode(ISD::UNDEF, Ptr.getValueType()); 71427f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 71437f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemNewEltVT = MemoryVT.getVectorElementType(); 71447f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemNewVT_Lo = MVT::getVectorVT(MemNewEltVT, NewNumElts_Lo); 71457f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemNewVT_Hi = MVT::getVectorVT(MemNewEltVT, NewNumElts_Hi); 71467f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 71477f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getLoad(ISD::UNINDEXED, ExtType, 71487f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman NewVT_Lo, Ch, Ptr, Offset, 71497f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SV, SVOffset, MemNewVT_Lo, isVolatile, Alignment); 71507f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman unsigned IncrementSize = NewNumElts_Lo * MemNewEltVT.getSizeInBits()/8; 7151c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 71520bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 71537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 7154dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 71557f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Hi = DAG.getLoad(ISD::UNINDEXED, ExtType, 71567f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman NewVT_Hi, Ch, Ptr, Offset, 71577f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SV, SVOffset, MemNewVT_Hi, isVolatile, Alignment); 7158c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7159c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 7160c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 7161475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 7162c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 7163c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7164c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7165c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 7166c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7167c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 71687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 71697692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 71707692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 7171475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = Node->getOperand(0); 717283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!InOp.getValueType().isVector() || 717383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands InOp.getValueType().getVectorNumElements() == 1) { 717410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 717510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 717610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 71772920d2b7b601d9dfcec783cb91316f35b6811be1Mon P Wang unsigned LdAlign = TLI.getTargetData()->getPrefTypeAlignment( 71782920d2b7b601d9dfcec783cb91316f35b6811be1Mon P Wang Op.getValueType().getTypeForMVT()); 7179475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = DAG.CreateStackTemporary(InOp.getValueType(), LdAlign); 7180ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif int FI = cast<FrameIndexSDNode>(Ptr.getNode())->getIndex(); 71817692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 7182475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue St = DAG.getStore(DAG.getEntryNode(), 718369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 7184a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(FI), 0); 718569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 7186a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(FI), 0); 71877692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 718810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 718910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 71905db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 71915db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 719210a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 71937692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 7194c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7195c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7196c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 719740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 7198c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 719910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 7200c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7201c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7202c7029805ef35ce9805931067b841e6af11db382eChris Lattner 720389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 720489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 720589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 7206475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ScalarizeVectorOp(SDValue Op) { 720783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Bad ScalarizeVectorOp invocation!"); 7208ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *Node = Op.getNode(); 720983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT = Op.getValueType().getVectorElementType(); 721083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().getVectorNumElements() == 1); 7211c7029805ef35ce9805931067b841e6af11db382eChris Lattner 72127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 7213475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, SDValue>::iterator I = ScalarizedNodes.find(Op); 72147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 7215c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7216475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 7217c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 72182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 7219e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 722039833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 7221e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 72227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 72237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 72247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 72257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 72267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 72277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 72287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 72297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 72307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 72317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 72327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 72337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 72347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 7235826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 72367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 72377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 72387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 72397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 7240c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 72417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 72427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 7243c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 72447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 72457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 72467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 72477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 72487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 72497794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG: 72507794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG2: 72517794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FLOG10: 72527794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP: 72537794f2a3a7778bdbc9bdd861db1fe914450e0470Dale Johannesen case ISD::FEXP2: 72547f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_TO_SINT: 72557f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_TO_UINT: 72567f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::SINT_TO_FP: 72577f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::UINT_TO_FP: 72587f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::SIGN_EXTEND: 72597f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ZERO_EXTEND: 72607f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ANY_EXTEND: 72617f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::TRUNCATE: 72627f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_EXTEND: 72637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 72647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 72657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 72667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 72679e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 72687f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_ROUND: 72699e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 72709e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 72719e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 72729e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 72739e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 72747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 72757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 7276475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 7277475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 72787f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman ISD::LoadExtType ExtType = LD->getExtensionType(); 72797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 72807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 72817f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemoryVT = LD->getMemoryVT(); 72827f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman unsigned Alignment = LD->getAlignment(); 72837f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman bool isVolatile = LD->isVolatile(); 72847f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 72857f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman assert(LD->isUnindexed() && "Indexed vector loads are not supported yet!"); 72867f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Offset = DAG.getNode(ISD::UNDEF, Ptr.getValueType()); 72877f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 72887f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.getLoad(ISD::UNINDEXED, ExtType, 72897f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman NewVT, Ch, Ptr, Offset, SV, SVOffset, 72907f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MemoryVT.getVectorElementType(), 72917f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman isVolatile, Alignment); 72927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 7293c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7294c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 7295c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7296c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 72977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 72987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 72997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 73007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 73017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 73027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 7303c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 73047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 73056595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 73066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 73076595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 73086595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 73097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 73107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 7311475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue EltNum = Node->getOperand(2).getOperand(0); 7312f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman if (cast<ConstantSDNode>(EltNum)->getZExtValue()) 73137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 73147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 73157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 73162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 73177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 73187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 73197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 73206595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 73216595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 7322446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng case ISD::BIT_CONVERT: { 7323475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0 = Op.getOperand(0); 732483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Op0.getValueType().getVectorNumElements() == 1) 7325446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Op0 = ScalarizeVectorOp(Op0); 7326446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op0); 7327db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 7328446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng } 73297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7330b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 73317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 73327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7333b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 733480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner case ISD::SELECT_CC: 733580c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Result = DAG.getNode(ISD::SELECT_CC, NewVT, Node->getOperand(0), 733680c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Node->getOperand(1), 733780c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner ScalarizeVectorOp(Op.getOperand(2)), 733880c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner ScalarizeVectorOp(Op.getOperand(3)), 733980c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Node->getOperand(4)); 734080c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner break; 73410d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman case ISD::VSETCC: { 7342475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0 = ScalarizeVectorOp(Op.getOperand(0)); 7343475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1 = ScalarizeVectorOp(Op.getOperand(1)); 73440d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Op0), Op0, Op1, 73450d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Op.getOperand(2)); 73460d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SELECT, NewVT, Result, 73470d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(-1ULL, NewVT), 73480d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(0ULL, NewVT)); 73490d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman break; 73500d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman } 7351c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7352c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7353c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7354c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 73557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 73567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7357c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7358c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7359c7029805ef35ce9805931067b841e6af11db382eChris Lattner 73603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 73613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 73623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 73639c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 73643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 73653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7366456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 73673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 73683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7369