LegalizeDAG.cpp revision 3200d92947cd64f82ca748d65d1e58c3d45f440f
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, 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes 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 { 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 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 } 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 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. 2833200d92947cd64f82ca748d65d1e58c3d45f440fDan Gohman std::vector<SDNode *> TopOrder; 2843200d92947cd64f82ca748d65d1e58c3d45f440fDan Gohman unsigned N = DAG.AssignTopologicalOrder(TopOrder); 2853200d92947cd64f82ca748d65d1e58c3d45f440fDan Gohman for (unsigned i = N; i != 0; --i) 2863200d92947cd64f82ca748d65d1e58c3d45f440fDan Gohman HandleOp(SDValue(TopOrder[i-1], 0)); 2873200d92947cd64f82ca748d65d1e58c3d45f440fDan Gohman TopOrder.clear(); 28832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 28932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 290475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue OldRoot = DAG.getRoot(); 29132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 29232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 2933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 2953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 29671c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 297c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 2987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 2993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 301190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3076831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 314475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TheChain(Node, Node->getNumValues()-1); 3156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 317475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TheChain = SDValue(Node, 0); 3186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 322475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TheChain = SDValue(Node, i); 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3368968450305c28444edc3c272d8752a8db0c2f34aDan Gohman SDNode *User = *UI; 3376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3476831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 359c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 360c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 361c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 362c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 363c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 36400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 367c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 368c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 369c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 370c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 375475871a144eb604ddaf37503397ba0941442e5fbDan Gohman if (LegalizedNodes.count(SDValue(N, 0))) return false; 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 378475871a144eb604ddaf37503397ba0941442e5fbDan Gohman if (PromotedNodes.count(SDValue(N, 0))) return false; 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 381475871a144eb604ddaf37503397ba0941442e5fbDan Gohman if (ExpandedNodes.count(SDValue(N, 0))) return false; 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 390c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 392c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 393c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 394c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 395c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 398475871a144eb604ddaf37503397ba0941442e5fbDan Gohman HandleOp(SDValue(N, 0)); 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 403c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 404475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::HandleOp(SDValue Op) { 40583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 4067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 407c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 410c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 41183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!VT.isVector()) { 4127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 414475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue X, Y; 41509ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 41609ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 417c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 41883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.getVectorNumElements() == 1) { 4197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 422c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 425475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue X, Y; 4267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 427c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 428c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 429c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 430c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4329f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4339f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 434475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanstatic SDValue ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 435279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 436004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 437004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 438004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 439004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 440004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 441aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // double. This shrinks FP constants and canonicalizes them for targets where 442aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // an FP extending load is the same cost as a normal load (such as on the x87 443aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // fp stack or PPC FP unit). 44483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = CFP->getValueType(0); 44502a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner ConstantFP *LLVMC = ConstantFP::get(CFP->getValueAPF()); 4469f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4479e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4489e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4496cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt(), 450ef12057737229452c17983faa20857dba441ef05Evan Cheng (VT == MVT::f64) ? MVT::i64 : MVT::i32); 451279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 452279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 45383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OrigVT = VT; 45483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SVT = VT; 455ef12057737229452c17983faa20857dba441ef05Evan Cheng while (SVT != MVT::f32) { 45683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SVT = (MVT::SimpleValueType)(SVT.getSimpleVT() - 1); 457ef12057737229452c17983faa20857dba441ef05Evan Cheng if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && 458ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 459ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 4606fd599fa6916bd9438dbea7994cf2437bdf4ab8cEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, SVT) && 461aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner TLI.ShouldShrinkFPConstant(OrigVT)) { 46283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *SType = SVT.getTypeForMVT(); 463ef12057737229452c17983faa20857dba441ef05Evan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 464ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 465ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 466ef12057737229452c17983faa20857dba441ef05Evan Cheng } 467004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 468004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 470ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 471ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), 4723069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 473ef12057737229452c17983faa20857dba441ef05Evan Cheng 0, VT); 474ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, 475ef12057737229452c17983faa20857dba441ef05Evan Cheng PseudoSourceValue::getConstantPool(), 0); 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!"); 670826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->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 736a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman int SPFI = cast<FrameIndexSDNode>(StackPtr.Val)->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!"); 76745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 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: 802948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner 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)); 824d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 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: 83503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner 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); 842948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) 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); 853bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 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); 864066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) 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); 8842bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) 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 } 893b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 894b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 895b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->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); 904b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? 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); 9188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) 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 } 927b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 928b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 929b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->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); 938b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? 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); 9462365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) 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. 962456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 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)); 98313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 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); 101510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 101613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 101713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 101813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 101913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 102113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->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)); 102813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 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 118428873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_CMP_SWAP: { 118563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 4; 118663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 1187475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[4]; 118863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 118963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Ops[x] = LegalizeOp(Node->getOperand(x)); 119063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 119163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang 119263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 119363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang default: assert(0 && "This action is not supported yet!"); 119463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Custom: 119563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = TLI.LowerOperation(Result, DAG); 119663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 119763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Legal: 119863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 119963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang } 1200475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1201475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 120263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang return Result.getValue(Op.ResNo); 1203126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 120428873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_ADD: 120528873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_SUB: 120663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_AND: 120763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_OR: 120863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_XOR: 1209507a58ac9b20ddcea2e56a014be26b8f8cc0ecb8Andrew Lenharth case ISD::ATOMIC_LOAD_NAND: 121063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MIN: 121163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MAX: 121263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMIN: 121363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMAX: 1214ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 121563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 3; 121663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 1217475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[3]; 121863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 121926ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 122063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 1221126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 122226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1223ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 122426ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Custom: 122526ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = TLI.LowerOperation(Result, DAG); 122626ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth break; 122763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Expand: 1228475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(TLI.ReplaceNodeResults(Op.Val, DAG),0); 122963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 123026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Legal: 1231ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1232ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1233475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1234475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 123526ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth return Result.getValue(Op.ResNo); 1236126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 1237c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1238c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1239c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1240c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1241c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 12423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 12433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 12443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1245c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1246c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1247c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1248c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1249c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1251c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 12533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 12543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 12553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 12563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 12573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 12583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12593181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 12603181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1261e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1262e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 12633181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 12643181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12653181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 12663181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 12673181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 12683181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 12693181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1270e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1271e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1272e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1273e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1274e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1275e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1276e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1277e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1278e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1279e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1280e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1281e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1282e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1283279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 12843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1285e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 12863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1288040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1289040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1290c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1291c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1292c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1293c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1294c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1295c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1296c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1297c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1298040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1299475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 1300040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1301c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1302c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1303f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1304a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1305a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1306fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1307fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1308f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1309fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1310b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1311b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 13120ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // A call within a calling sequence must be legalized to something 13130ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // other than the normal CALLSEQ_END. Violating this gets Legalize 13140ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // into an infinite loop. 13150ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen assert ((!IsLegalizingCall || 13160ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Node->getOpcode() != ISD::CALL || 13170ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Tmp3.Val->getOpcode() != ISD::CALLSEQ_END) && 13180ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen "Nested CALLSEQ_START..CALLSEQ_END not supported."); 13190f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 13200f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 13210f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 13220f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 13230f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 13240f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 13250f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1326b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1327e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1328f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1329e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1330b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 13310f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 13320f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1333b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1334e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1335e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1336475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, i), Tmp1); 1337e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1338e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1339557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1340557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1341557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1342557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1343557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1344557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1345557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1346557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1347557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1348557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1349557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1350557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1351557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1352557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1353557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1354557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1355557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1356b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1357b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 13582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 13622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 13632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1366ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1367ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1368b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 13692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 13722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 13732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 13740325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13750325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 13760325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 13770325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 13780325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 13790325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 13800325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 13810325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 13820325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 13842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 13852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 13862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 13872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 13892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13912281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 13922281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 13932281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 13942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 13972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 13988d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 13998d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 14008d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 14010325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 14020325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 14030325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 140483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Op.getValueType().getVectorElementType()) { 1405475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 14060325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 14070325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 140883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElts = Tmp1.getValueType().getVectorNumElements(); 140983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskVT = 141083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntVectorWithNumElements(NumElts); 141183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskEltVT = ShufMaskVT.getVectorElementType(); 14120325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14130325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 14140325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 14150325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 1416475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> ShufOps; 14170325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 14180325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (i != InsertPos->getValue()) 14190325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 14200325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 14210325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 14220325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 1423475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 14240325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 14250325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14260325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 14270325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 14280325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 14290325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 14308d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14318d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14326867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Result = PerformInsertVectorEltInMemory(Tmp1, Tmp2, Tmp3); 14332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1437ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1443ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1444ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1445ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1446ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1447ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1448ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1449ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14504d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14514d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14524d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 14534d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 14544d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 14554d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 14564d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 14574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 14584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1459ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1460ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1461ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 146287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 146387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 146487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 146587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 146687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 146787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 14684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 14694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 14704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 14714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 14724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 14734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 147518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 147618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 147718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 147818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 147918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 148018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 148118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 148283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 148383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 148483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 1485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = Node->getOperand(2); 148618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1487475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue,8> Ops; 148818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 1489475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Arg = Mask.getOperand(i); 149018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 149118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 149218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 149318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 149418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 149518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 149618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 149718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 149818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 149918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 150018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 150118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 150218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1503bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 15044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 150518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 15064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 15074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 150883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 150983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 15104352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 15124352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 15134352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 15144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 1516475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp3 = SDValue(isShuffleLegal(OVT, Node->getOperand(2)), 0); 15174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 15184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 15194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 15204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 152287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 152387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1524384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1525384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1527384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1528384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1530384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1531384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 154500755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1547c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1548c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1549c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 15526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 15536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 15566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1557c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1558b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1559b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1560b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 15616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 15636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1564475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 15656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1566f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 15676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 15704b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 15714b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 15724b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 15734b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 15746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 15756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 15766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 15776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 15786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 15796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 1580475871a144eb604ddaf37503397ba0941442e5fbDan Gohman LastCALLSEQ_END = SDValue(CallEnd, 0); 15816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 15826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 15846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 15856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 158816cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 15896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 15906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 15916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 1592475871a144eb604ddaf37503397ba0941442e5fbDan Gohman LegalizeOp(SDValue(FindCallStartFromCallEnd(Node), 0)); 1593475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); 15946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 15956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 15966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 15976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 16006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 16013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 160270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 160370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 160470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 160570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1606475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 160770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1608f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 160970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 161070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 161170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 161270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 161370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1614475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 161570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 161670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1617f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 161870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 16196a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16204b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16234b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16244b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 1625475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 16264b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 1627475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 16284b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1629a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 163083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1631fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1632fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1633fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1634c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1635fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1636c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16375f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 163861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1639a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1640903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1641903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1642903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1643903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1644475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = Tmp1.getOperand(0); 16450f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16460f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16470f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 16480f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 16490f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 16500f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1651475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Size = Tmp2.getOperand(1); 1652475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SP = DAG.getCopyFromReg(Chain, SPReg, VT); 165361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 165461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 165561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 165661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 165761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 16583e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 16593e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 166061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 16610f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 16620f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16630f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 16640f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 16650f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16660f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 1667475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue()); 16680f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1669c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1670c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1671903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1672903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1673903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 16745f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 16755f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1676c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1677c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1678a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1679903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1680a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1681903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1682a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1683903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1684903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1685475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 1686475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 1687903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1688a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 168925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1690475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 169125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 169225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 169325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 169425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 1695475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = LegalizeOp(Ops[0]); 169625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 169725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 169825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 169925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 170025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 170125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 170225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 1703475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = LegalizeOp(Ops[i]); 170425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 170525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 170625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 170725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 170825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 170925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 171025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 171125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 171225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 171325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 171425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 171525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1716ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 171725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1718f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1719ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1720ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1721475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 1722475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 1723ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 172425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1725c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1726c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1732c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1733c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 173437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 173537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 173637efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 173737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 173837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 173937efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 174037efe6764568a3829fee26aba532283131d1a104Nate Begeman 174137efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 174237efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 174337efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 174437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 174537efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 174637efe6764568a3829fee26aba532283131d1a104Nate Begeman } 174737efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 174837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17503d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17513d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 17523d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17533d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 17543d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 17553d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17563d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 17573d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 17583d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17593d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 17603d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 17613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 17623d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 17633d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 17643d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 17653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 17663d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 1767475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = Result.getOperand(0); 1768475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Table = Result.getOperand(1); 1769475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Index = Result.getOperand(2); 17703d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 177183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PTy = TLI.getPointerTy(); 1772acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1773acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 17743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 1775475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1776acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1777475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LD; 1778acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1779acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 178069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 17813069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 178269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 17833069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1784acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1785acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1786cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1787acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 17883d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 17893d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1790cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1791cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1792cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1793cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1794cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 17953d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1796cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 17973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 17983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 17993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1800c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1801c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 18066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 180747e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 180847e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 180947e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 181047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 181147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 18122e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 181347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1814f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1815f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1816f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 18172e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1818ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 18192e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1820f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 182147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 182247e9223e06390897c3834f8c527001df392570ffChris Lattner } 18232e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1824456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1825456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1826c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18277cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1830456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1831456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1832456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1833456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1834456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18357cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18367cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18377cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18387cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18397cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18407cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18417cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18427cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18447cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18457cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18467cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18477cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18487cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18497cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 18527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 18546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1856750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1857750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1858750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1859181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1860750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1861722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1862722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1863750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1864750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1865750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1866750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1867750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1868750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1869750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1870750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1871750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1872750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1873456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1874181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1875181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1877456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1879456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1880181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 18817cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1882c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1883f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1884466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1885466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1886466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 18872d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1889466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 189083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1891466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1892466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1893466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1894456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1896466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1897f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1898f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1899f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1900f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1901f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 190283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 1903f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1904f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1905f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1906f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1907f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1908907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1909907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1910f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1911f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1912f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1914466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1915466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1916466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1917466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1919466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1920466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1921466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 192283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Cannot promote this load!"); 1923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 192483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1925466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1927d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1928d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1929466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 193041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1931466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1932f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1933466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1934466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1935466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1936475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp3); 1937475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp4); 1938466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1939466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 194083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = LD->getMemoryVT(); 194183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcWidth = SrcVT.getSizeInBits(); 1942f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1943f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1944f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1945f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 194683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SrcWidth != SrcVT.getStoreSizeInBits() && 1947f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1948f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1949f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1950f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1951f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1952f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1953f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1954f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 1955f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1956f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1957f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 195883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NewWidth = SrcVT.getStoreSizeInBits(); 195983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(NewWidth); 1960475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch; 1961f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1962f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1963f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1964f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1965f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1966f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1967f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1968f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 1969f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 1970f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 1971f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1972f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 1973f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1974f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1975f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 1976f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1977f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1978f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 1979f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 1980f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 1981f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 1982f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1983f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1984f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1985f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 1986f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 198783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SrcVT.isExtended() && !SrcVT.isVector() && 1988f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 1989f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 199583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 199683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 1997475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi, Ch; 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2005f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2006f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2007f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2014f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2016f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2024f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2025f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2026f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2027f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2034f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2035f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2037f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2042f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2043f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2044f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2056f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2061f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2068f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2070f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2071f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2074f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2075f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2077f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2078f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 208183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2090f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2091f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2096475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2099f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2100f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2101f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2103f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2104f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2105f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2106f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2107f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2108f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2109f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2110f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2111475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ValRes; 2112f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2113f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2114f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2115f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2116f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2117f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2118f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2119466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2120466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21219d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2122f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2123466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2124466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2125475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 2126475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 2127466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 212801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 212901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21305dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 213183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OpTy = Node->getOperand(0).getValueType(); 21325dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2133c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 21355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 21365dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21375dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 213883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OpTy.getSizeInBits()/2, 21395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21435dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21445dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21465dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21475dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21485dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21495dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 21505dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 21515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 21525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 21535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 21545dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 21603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2161edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2162c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2163d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 21647310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2165d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2166f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2167c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 21687310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2169f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2170c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2171f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2172c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2173c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2174c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2175c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 21767310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21777310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 21787310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 21797310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2180475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 2181475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 2182c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 21837310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 21873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 21886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 21896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 21906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 21916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 21926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2193f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 21943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 21958e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 219698f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 21978e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2198f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 21993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22008e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 22013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2202f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 220383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!Tmp2.getValueType().isVector()) { 2204475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2205f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2206edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2207edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 22080753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2209edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2210edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 221113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 221213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 221313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 221413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2215f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2216f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2217f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2218e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 221983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 222083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 2221f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2223ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 222483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 22257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2226ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22288e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2229f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2230f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22338e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2234b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2235b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2236b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2237b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2238f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2239f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2240f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2241f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2242b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2243b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2244475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2245f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2246fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2247f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2248f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2249f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2250edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 22538e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2254c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 22558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 22563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2259c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 22603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2262475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> NewValues; 22633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 22648e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 22653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 22663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22674e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 22688e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 22693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 2271475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 227283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(!Node->getOperand(i).getValueType().isExtended() && 2273b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 22743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 22753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 22768e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 227713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 227813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 227913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 228013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2281edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 22853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2286c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2287c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2288f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2289c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2290f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2291f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 22923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 229517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 22966862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 22976862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 22986862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 22996862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 23006862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 23016862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 23026862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 23036862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 23046862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 230517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 23063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2307f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 23088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 23098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 23108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2311d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2312d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2313d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 23148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2316d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2317d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2318d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2319d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2320d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2321d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23229e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23232b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23243cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23253cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23266cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman Tmp3 = DAG.getConstant(CFP->getValueAPF(). 23276cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman convertToAPInt().zextOrTrunc(32), 23283f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23299e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23309e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23319e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23329e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23333cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23343cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23353cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 23366cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman zextOrTrunc(64), MVT::i64); 23373cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23383cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23393cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 2340d4b9c17fb705c2f58ceef4f37d789ddb56783584Duncan Sands } else if (getTypeAction(MVT::i32) == Legal && !ST->isVolatile()) { 23413cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23423cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23433cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23446cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman const APInt &IntVal =CFP->getValueAPF().convertToAPInt(); 2345475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); 2346475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); 23470753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23483cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23493cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23503cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23513cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23520bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 23533cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2354dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 23553cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23563cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 23573cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23583cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2359d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2360d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2361d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2362b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 23638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 23648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 23652efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 23668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 23678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 236883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp3.getValueType(); 23698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 23708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2371f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2372f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2373f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2374f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2375f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 237683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 2377f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2378f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2379f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2380f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2381f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 23828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 23838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 23848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 23858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 238783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Unknown legal promote case!"); 23888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 23898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 23908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2391d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2392d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 23938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 23952efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2396f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 23978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 23988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 23998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 24008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2401b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2402d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 24038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 240403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 24058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 24068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 2407475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2408c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 24108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 24118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 241283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getValue().getValueType().isVector()) { 24138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2414e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 241583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT InVT = InVal->getValueType(InIx); 241683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVT.getVectorNumElements(); 241783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVT.getVectorElementType(); 24188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2420ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 242183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 24227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2423ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 242421be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2426d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 243121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2433d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 243921be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 244083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands IncrementSize = Lo.Val->getValueType(0).getVectorNumElements() * 244183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands EVT.getSizeInBits()/8; 24428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2443c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 244421be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 244583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands IncrementSize = Hi.Val ? Hi.getValueType().getSizeInBits()/8 : 0; 24468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24470753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 24488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2449c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2450c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2452d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24537b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24547b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 24557b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 24567b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 24577b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 24587b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 24597b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 24628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 24638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2464d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2465dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 24668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2467d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2472ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2473ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2474ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2475ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2476ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2477ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2478ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2479ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2480ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2481ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2482ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2483ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2484ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2485ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2486ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 24877e857201f387d004571e6058e2ea709163500f38Duncan Sands 248883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT StVT = ST->getMemoryVT(); 248983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned StWidth = StVT.getSizeInBits(); 24907e857201f387d004571e6058e2ea709163500f38Duncan Sands 249183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (StWidth != StVT.getStoreSizeInBits()) { 24927e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 24937e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 24947e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 249583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(StVT.getStoreSizeInBits()); 24967e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 24978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 24987e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 24997e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 25007e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 250183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(StVT.isExtended() && !StVT.isVector() && 25027e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 25037e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 25047e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 25057e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 25067e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 25077e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 25087e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 250983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 251083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 2511475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 25127e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 25137e857201f387d004571e6058e2ea709163500f38Duncan Sands 25147e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 25157e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 25167e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 25177e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25187e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 25197e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25207e857201f387d004571e6058e2ea709163500f38Duncan Sands 25217e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25227e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25237e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25247e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25257e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25267e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25277e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25287e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25297e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25307e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25317e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25327e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25337e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25347e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25357e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25367e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25377e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25387e857201f387d004571e6058e2ea709163500f38Duncan Sands 25397e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25407e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25427e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25437e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25447e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25457e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2547c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25487e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25497e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25507e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands 25567e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 25577e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 25587e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 25597e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 25607e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 25617e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 25627e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 256383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 25647e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 25657e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 25667e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 25677e857201f387d004571e6058e2ea709163500f38Duncan Sands } 25687e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25697e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 25707e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 25717e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25727e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 25737e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 25747e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 25757e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 25767e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 25777e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25787e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2579f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 25808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 25823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2583f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 258495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 258595762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2586c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 258795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2588140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2589140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2590c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2591c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2592c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2593456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2594140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2595140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2596456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2597456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2598c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2599c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2600c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2601c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2602140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2604140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26054f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 26064f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26074f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2608c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 26094f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2610c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 26114f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2612c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2613c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 26144f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2615456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2616140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2617456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2618456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2619456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2620475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 2621475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 2622c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2623456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2624140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2625140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2626140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2627c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2628140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2629140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2630140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2631456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2632456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2633456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2635140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2636140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26374f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26384f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26394f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26404f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26414f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26424f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26434f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2644140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2645140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2646140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2647140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 264851b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 264951b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2650c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2651f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2652f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2653f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 26546a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 26556a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 26566a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 26576a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2658f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2659f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 26606a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 26616a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2662f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2663f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 266449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 266549c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 266649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 2667475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 2668475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 2669c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2670f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 26712ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 267247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 267347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 267447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 267547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 267647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 26772e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 267847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2679b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 26802e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2681ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 26822e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2683b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 268447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 268547e9223e06390897c3834f8c527001df392570ffChris Lattner } 26862e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 26873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 26882ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 268955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2690c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2691456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2692b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 269355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2694456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2696456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2697456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2698456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2699456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 27009373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 27019373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 27029373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 27039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 27049373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 27059373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 27069373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 27079373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 27089373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 27099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 271055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 271155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 271283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 271355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 271455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 271583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Tmp2.getValueType().isVector()) { 271641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 271741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 271883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Tmp2.getValueType().isInteger()) { 2719456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2720456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 272155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2722456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2723456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 272455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 272555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 272655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 272755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 272855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 272955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27300bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27310bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27320bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27330bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27340bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 273555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 273655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 273755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2739750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2740750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2741750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2744475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CC = Node->getOperand(4); 27459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2746750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2747750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2748750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2749750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2750750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2751750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2752750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2753750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2754750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2755750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2756750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2757750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2759750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2760750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2761750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2762750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2763750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 27649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 27659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 27669373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2767750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 27683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2769750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2770750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2771750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2772750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2773750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2774750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2775750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2776750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2777750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2778750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 27793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 27803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2781b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 278273e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2783456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2784456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2785456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2786456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2787456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 27882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2789456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 27902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 27912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2792456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2793b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2794ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2795ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2796ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2797ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 279883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = Node->getOperand(0).getValueType(); 279983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OldVT = NewInTy; OldVT = OldVT; 2800ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2801ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2802ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 280383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 2804ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 280583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() == OldVT.isInteger() && 2806ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 280783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isFloatingPoint() == OldVT.isFloatingPoint() && 2808ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2809ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2810ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 28111ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2812ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2813ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 281483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NewInTy.isInteger()) 2815ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2816ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2817ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2818ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2819ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2820c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2821c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2823433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28245e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2825ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2826b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2827b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2828b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 282983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 2830b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2831b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2833b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2834b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2836b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 2837b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2838b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2839475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CC = Node->getOperand(2); 2840b43e9c196542acc80c9e4643809661065710848fNate Begeman 2841b43e9c196542acc80c9e4643809661065710848fNate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, CC); 2842b43e9c196542acc80c9e4643809661065710848fNate Begeman 2843b43e9c196542acc80c9e4643809661065710848fNate Begeman // Everything is legal, see if we should expand this op or something. 2844b43e9c196542acc80c9e4643809661065710848fNate Begeman switch (TLI.getOperationAction(ISD::VSETCC, Tmp1.getValueType())) { 2845b43e9c196542acc80c9e4643809661065710848fNate Begeman default: assert(0 && "This action is not supported yet!"); 2846b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Legal: break; 2847b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Custom: 2848b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2849b43e9c196542acc80c9e4643809661065710848fNate Begeman if (Tmp1.Val) Result = Tmp1; 2850b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2851b43e9c196542acc80c9e4643809661065710848fNate Begeman } 2852b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2853b43e9c196542acc80c9e4643809661065710848fNate Begeman } 285452d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 28555b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 28565b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 28575b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2858475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 285984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 286084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 286184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 286284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 286384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2864c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2865f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 28662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 286705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 286805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 286905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2870456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2873456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2874475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2, RetVal(0, 0); 287505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 2877475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, i), Tmp2); 287805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 287912f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 288005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2881269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 288205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 288305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 288405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 288505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 288605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 28872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 28882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 28892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 2890475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, i), Result.getValue(i)); 28912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 289284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 28932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 28942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 28953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 28963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 28973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2898c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2899c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 29003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 29013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 29023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 29033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 29043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 290503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 290603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 290703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 290801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 290901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 291001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 291101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2912826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2914f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2915f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2916f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2917f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2918f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2919f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2920f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2921f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2922f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 29235bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman 29245bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman if ((Node->getOpcode() == ISD::SHL || 29255bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Node->getOpcode() == ISD::SRL || 29265bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Node->getOpcode() == ISD::SRA) && 29275bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman !Node->getValueType(0).isVector()) { 29285bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman if (TLI.getShiftAmountTy().bitsLT(Tmp2.getValueType())) 29295bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Tmp2 = DAG.getNode(ISD::TRUNCATE, TLI.getShiftAmountTy(), Tmp2); 29305bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman else if (TLI.getShiftAmountTy().bitsGT(Tmp2.getValueType())) 29315bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), Tmp2); 29325bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman } 29335bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman 2934c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2935456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2936e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2937bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2938456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2939456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2940456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 294124dc346a16397bf740d8d961cd1ebec8d2f46957Nate Begeman if (Tmp1.Val) { 29425bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman Result = Tmp1; 29435bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman break; 294424dc346a16397bf740d8d961cd1ebec8d2f46957Nate Begeman } 29455bc1ea0736a5785ed596d58beeff2ab23909e33dNate Begeman // Fall through if the custom lower can't deal with the operation 2946bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 294783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 2948525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2949525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2950525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2951525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2952525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2953525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2954525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2955525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2956525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2957525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2958525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2959525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2960525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2961525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2962525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2963525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2964525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2965525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 2966525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2967525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 2968525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2969525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2970525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 2971475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 2972525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2973525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2974525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2975525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 2976525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 2977475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2978525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2979525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2980525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 2981525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 2982475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2983525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2984525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2985525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 2986525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2987475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2988525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2989525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2990525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 2991525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2992475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2993525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2994525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2995525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2996826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 2997826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2998826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 2999826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 3000826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 3001826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 3002826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 3003826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 300456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 3005826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 3006826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3007826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3008826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 3009007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 3010007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 3011826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3012826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 3013826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3014826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 3015475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3016460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 301752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 301852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 301952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 302083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Node->getValueType(0).isVector() && 3021bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3022bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3023826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3024bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3025bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3026cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3027cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3028cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3029cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3030cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3031cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 303283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 303383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 303483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(OVT.isVector() && "Cannot promote this BinOp!"); 3035cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3036cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3037cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3038cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3039cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3040cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3041cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3042cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3043cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3044cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3045e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 30463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3047a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3048e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3049e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3050e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3051e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3052e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3053e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3054a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3055e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3056525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3057525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3058525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3059525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3060e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3061e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3062a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3063a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3064a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3065a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3066a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3067a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3068a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3069a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3070a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3071a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3072a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3073a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3074a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3075a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3076a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3077a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3078a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3079a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3080a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 30818f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3082a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3083912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3084636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3085636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3086636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3087636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3088636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3089912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3090636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 30918f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 309283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IVT = 30938f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 3094475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 30955b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SignBit = DAG.getSetCC(TLI.getSetCCResultType(SignBit), 30968f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 30978f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 3098475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 30998f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 31008f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 31018f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 31028f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 31038f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 31048f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 31058f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 31068f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 31078f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 31088f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 31098f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 311083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 3111912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3112912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3113912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3114912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3115a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3116a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3117912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3118a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3119a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3120551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3121551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3122551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3123551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3124551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3125551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3126551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3127475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 3128475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 3129551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3130edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3131551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3132551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3133551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3134551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3135551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3136551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3137551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3138551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3139475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 3140475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 3141551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3142551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3143419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 314483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PairTy = Node->getValueType(0); 3145419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3146419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3147419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3148419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3149456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3150456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3151456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3152419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3153419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3154419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3155419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3156419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3157419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3158419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3159419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 316083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(PairTy.getSizeInBits()/2, 3161419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3162456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3163419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3164419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3165419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3166419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3167419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3168c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3169c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 317001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3171c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3172c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3173456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3174c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3175456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3176456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3177456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3178456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 317957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3181456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3182456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3183456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 318557030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3186525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 31876b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 318847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 318983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3190525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3191525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3192525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3193525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3194525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3195475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3196525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3197525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3198525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3199525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3200475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Result = SDValue(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3201525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3202525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3203525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 320483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) { 3205525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 320652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 320752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 32086b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 320952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 321052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 321183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.isVector()) { 321280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 321352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3214525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 321552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 321656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 321756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 3218475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3219460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 322052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32210d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 322283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isFloatingPoint() && 32230d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 322483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 322580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 322680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 322780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3228007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3229007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 3230475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3231460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 323280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3233c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3234c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3235c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3236525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3237c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3238acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3239acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3240acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3241acc398c195a697795bff3245943d104eb19192b9Nate Begeman 324283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3243acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3244acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3245456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3246456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3247456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3248acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3249c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3250c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3252456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3253456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3254456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3255456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3256456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3257456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3258456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3259456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3260acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3261acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 326269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 3263475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3264acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3265acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 326683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 3267acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3268acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 326969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3270acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3271466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3272456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3273acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3274acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3275acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3276acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3277acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3278acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3279475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result); 3280475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp1); 3281456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3282acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3283acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3284acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3285acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3286acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3287acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3288acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3289acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3290acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3291456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3292456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3293456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3294acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3295c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3296c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3297456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3298456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3299456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3300456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3301acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3302acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3303acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3304acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 330569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 330669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 3307499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VS, 0); 3308499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VD, 0); 3309acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3310acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3313acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3314acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3315acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3316acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3317acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3318acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3319456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3320456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3321456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3322acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3323c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3324456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3328acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3329acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3330acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3331acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3332acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3333acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3334acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3335acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3336acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3337acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3338acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3339c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3340c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3341acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3342acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3343456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3344456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3345456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3346456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3347acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3348acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3349acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3350acc398c195a697795bff3245943d104eb19192b9Nate Begeman 335135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 335235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 335335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 335435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3355c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3356c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3357c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3358c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3359c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3360c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3361c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3362c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3363c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3364c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3365c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3366c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3367c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3368c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3369c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3370c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3371c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3372c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 337335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 337435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3375d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3376d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3377d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3378456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3379456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3380456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3381c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3382456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3383456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 338483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 338583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 338683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 3387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3388456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3389456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3390456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3391456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3392456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3393456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3395456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3396456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3397d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3398d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3399d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3400691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3401691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3402691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3403691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3404691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3405910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3406691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3407c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3408910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3409335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3410335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3411335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3412335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3413335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3414910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3415691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3416691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 341783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 341883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3419edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3420edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3421691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3422691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3423691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3425691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3426691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3427691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3428691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3429691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34305b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 343183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 34327cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 343300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 343483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OVT.getSizeInBits(), NVT), Tmp1); 3435691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3436691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3437456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 343800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 343983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 344083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands OVT.getSizeInBits(), NVT)); 3441691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3442691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3443691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3444691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3445691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3447691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3448691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3449691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 345000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 34512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 34522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 34532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3454da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3455da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3456da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3457509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FTRUNC: 3458509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FFLOOR: 3459509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FCEIL: 3460509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FRINT: 3461509e84fa7146175c86dec5ef2167290f294dc89eDan Gohman case ISD::FNEARBYINT: 34622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 34632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3464456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3465456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 346659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 346759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 34682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3469c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 347059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 347159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 347259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 347359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 34742c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 34752c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3476456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3477456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3478456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 34792c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 34802c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3481456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3482f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3483f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 34844af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 348583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 34864af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 34875b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 34885922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETUGT); 34894af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 34904af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3491f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3492f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 34932bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 34942bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 34952bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 34962bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 34972bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 3498f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3499f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3500f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 350183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3502826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3503826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 350483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3505826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3506826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3507826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3508826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 350956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3510f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 351156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3512007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3513007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 351456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 351556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3516007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3517007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 351856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 351956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3520007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3521007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 352256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 35232bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 35242bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, 35252bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128); 35262bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 35272bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 35282bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, 35292bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128); 35302bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 35312bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 35322bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::CEIL_F32, RTLIB::CEIL_F64, 35332bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128); 35342bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 35352bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 35362bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::RINT_F32, RTLIB::RINT_F64, 35372bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::RINT_F80, RTLIB::RINT_PPCF128); 35382bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 35392bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 35402bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64, 35412bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128); 35422bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 3543f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3544f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3545475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3546460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 3547f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3548f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35536ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 355483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3555826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3556826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 355783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3558826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3559826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3560826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3561826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3562826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3563007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3564007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 3565475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3566460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 35676ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 35686ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 356935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 357067993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 35711401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35721401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 357383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Op.getOperand(0).getValueType().isVector()) { 35747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 35757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 35767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3577e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 357883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 357983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 35807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 35827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 358383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 35847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 358507a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 35867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 35887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 35907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 35917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 35937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 35957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 35967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 35977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 359867993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 359935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 360035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 360135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 360235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 36031401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36041401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 360535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 360635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 360735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3608c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 360935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 361035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 361135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 361235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3613d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 36142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3615fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3616fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3617fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 36187f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = LegalizeINT_TO_FP(Result, isSigned, 36197f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Node->getValueType(0), Node->getOperand(0)); 3620fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3621fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3622fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3623fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3624fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3625fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3626c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3627fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3628fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3629fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3630fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3631fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3632fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3633fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3634fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3635fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3636fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3637fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3638fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3639fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3640fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3641d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3642fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3643fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3644fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3645fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3646f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3647f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 36481618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 36491618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3650456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3651456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3652456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3653456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3654c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3655456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3656456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3657456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3658456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3659456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3660456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3661456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3662456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3663456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 36641618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3665d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3666475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue True, False; 366783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getOperand(0).getValueType(); 366883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = Node->getValueType(0); 366973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 367083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero)); 367183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APInt x = APInt::getSignBit(NVT.getSizeInBits()); 3672c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 367373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 36745b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp3 = DAG.getSetCC(TLI.getSetCCResultType(Node->getOperand(0)), 3675d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3676d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3677d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 367801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3679d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3680d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3681c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman DAG.getConstant(x, NVT)); 3682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3684d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3685d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3686d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3687d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 36881618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3689fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36906af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 369183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 369283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getOperand(0).getValueType(); 3693fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 36946eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 36950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 36960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 36970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 36980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 36990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 37000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 37010bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3702fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3703fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3704fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3705fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3706fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3707fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3708fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3709fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3710fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3711fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3712fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3713fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3714fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3715fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3716fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37176eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37186eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3719a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman // Convert f32 / f64 to i32 / i64 / i128. 3720b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = (Node->getOpcode() == ISD::FP_TO_SINT) ? 3721b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::getFPTOSINT(OVT, VT) : RTLIB::getFPTOUINT(OVT, VT); 3722b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpectd fp-to-int conversion!"); 3723475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 3724460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 37256af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 37266af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3727fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3728c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3729c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3730c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3731fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3732fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3733fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3734d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3735f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 373683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 373783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 37380bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 37390bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 37400bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 37410bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 37420bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3743f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3744f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3745f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3746f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3747f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3748f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3749f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3750f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3751f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3752f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3753f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3754f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3755f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 37560bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 37575411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 375883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 375983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 37600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 37610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3762475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo; 3763713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 37640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3765713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3766713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 37670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 37685411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 37690bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 37700bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 37710bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 37720bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3773849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3774f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3775f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3776f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3777f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 37780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3779f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3780f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3781f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 37820bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 37830bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3784f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3785f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3786f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 37870bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 378813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 37893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 37903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 37913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3792456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 37933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 37943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 379582747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Result = DAG.UpdateNodeOperands(Result, Tmp1); 37960123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 37970123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 379882747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 379982747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel if (Tmp1.Val) Result = Tmp1; 38000123b7dcfa9be97588926407163deb8d603487ceScott Michel } 38013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 380203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 380303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 380413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3805c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3806c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 380713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 38081713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 38091713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 381013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 381123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 381223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 381303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 381403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 38151713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 381613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 38171713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 381815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 381915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 38201713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 382103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 38223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 38233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 38240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 382523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 38260f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 382783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 382845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 382945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 383045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 383155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 383255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 383355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3834c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 383555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 383655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 383745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 383823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 383945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 384045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 384183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned BitsDiff = Node->getValueType(0).getSizeInBits() - 384283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ExtraVT.getSizeInBits(); 3843475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 384445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 384545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 384645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 384745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 384845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 38492d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 385045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 385145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 385245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 385345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 385445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3855a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3856a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 385745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 385845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 385945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 386055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 386145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 38620f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 38633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 386436397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 3865475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[6]; 386636397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 386736397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 386836397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 386936397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 387036397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 387136397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3872f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3873f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3874f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3875f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3876f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3877475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result); 3878475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp1); 3879f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 388036397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 38819c78a399076f8356a53ee67dca9c78e594e34967Dan Gohman case ISD::FLT_ROUNDS_: { 388283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3883917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 3884917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 3885917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 3886917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 3887917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 3888917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 3889917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 3890917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 3891917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 3892917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 3893917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 38949ab9ee8209c313713a54db2d9451751d8cfb9e2aDan Gohman break; 3895917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 389641bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 389783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 389866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 389966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 390041bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 390141bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 390241bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 390341bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 390466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 390566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 390666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 390766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 390841bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 390966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 391041bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 391166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 3912475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::pair<SDValue,SDValue> CallResult = 391300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 391400fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 3915034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 3916034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 391766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 391866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 391966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 392041bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 392166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 392245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 39244ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 39254ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 39264ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3927456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3928456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3929456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 39303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 393145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 393245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 393345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 39343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 39353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 39363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 39378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 39388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 39398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 39408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 3941475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteOp(SDValue Op) { 394283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 394383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 394403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 394503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 39468e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(NVT.bitsGT(VT) && NVT.isInteger() == VT.isInteger() && 394703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 394803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 3949475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3; 3950475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 395103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 395203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 3953475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = PromotedNodes.find(Op); 39546fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 395545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 395603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3957d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3958d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 395903c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3960e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 396139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3962e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 396303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 396403c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3965fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3966fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3967fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 396803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3969ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3970ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3971ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3972ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 397303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 397403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 397503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 397603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 397703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 397803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3979ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 398082fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 39815b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel assert(isTypeLegal(TLI.getSetCCResultType(Node->getOperand(0))) 39825922f561c65968ef1865cc8434d191041e450602Nate Begeman && "SetCC type is not legal??"); 39835b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = DAG.getNode(ISD::SETCC, 39845922f561c65968ef1865cc8434d191041e450602Nate Begeman TLI.getSetCCResultType(Node->getOperand(0)), 39855922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(0), Node->getOperand(1), 39865922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(2)); 398782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3988fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 398903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 399003c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 399103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 399203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 39938e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(Result.getValueType().bitsGE(NVT) && 399403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 39958e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Result.getValueType().bitsGT(NVT)) // Truncate to NVT instead of VT 399603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 399703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3998e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3999e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4000e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4001e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4002e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 400303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 400479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 400579e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4006e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 400703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 400803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 40098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 40108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 401113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 40128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 40148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4016456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 40178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 40198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 40208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 40218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 40228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4023595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 402415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 402513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 402623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 402723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 40288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 403135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 40321401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 40331401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 403435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 403535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 403635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 40378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 40388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 40398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 40408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 40428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 40438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40440bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 40450bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 40460bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 40470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 40480bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 40490bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 40500bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 40510bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 40520bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 40538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 40578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 40588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 406077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4061456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 40628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 40648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 40658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 40668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 40678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 406815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 406915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 40708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 407123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 407223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 407377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 407477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 40758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 407777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 407877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 407977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 408077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 408115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 408215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 408377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 40848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 40875e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 40885e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 40895e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 40905e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 40915e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 40928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 40938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 40948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40960b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4097456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 40988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 41018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 41028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4105d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4106d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4107d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4108d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4109d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4110d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4111c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4112b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4113b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4114d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4115d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4116d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4117d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 41188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 41212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 41222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 41242c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 41252c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 41262c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 41272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 41282c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 41292c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4130da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4131da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4132da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 41332bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 41342bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 41352bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 41362bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 41372bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 4138da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4139da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4140da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 414215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 414315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4144da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4145da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 41468b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 41478b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 41488b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 41498b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41508b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 41518b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 41528b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 41538b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 41548b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 41558b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 41568b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 41578b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 415828873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_CMP_SWAP: { 415928873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); 4160ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4161ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 416228873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), 416328873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getBasePtr(), Tmp2, Tmp3, 4164fd4418fc9b4725c44210c169c4d6500be468ca70Dan Gohman AtomNode->getSrcValue(), 416528873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getAlignment()); 4166ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4167ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4168ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4169ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 417028873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_ADD: 417128873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_SUB: 417263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_AND: 417363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_OR: 417463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_XOR: 4175507a58ac9b20ddcea2e56a014be26b8f8cc0ecb8Andrew Lenharth case ISD::ATOMIC_LOAD_NAND: 417663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MIN: 417763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MAX: 417863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMIN: 417963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMAX: 4180ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 418128873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); 4182ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 418328873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), 418428873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getBasePtr(), Tmp2, 4185fd4418fc9b4725c44210c169c4d6500be468ca70Dan Gohman AtomNode->getSrcValue(), 418628873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getAlignment()); 4187ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4188ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4189ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4190ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4191ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 419203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 419303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 419403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 41950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 41968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 41970f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 41980f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 419901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 42000f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 42010f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42020f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 42030f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 42040f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 420501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 420601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 420701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 420801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 420901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 421001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 421101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 421201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 421301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 421401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 421501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 421601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 42178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 42188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 421901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 422015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 422115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42220f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 42230f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 42248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 42258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 42268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 42278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 422983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isInteger()) { 423015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 423115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 423215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 423315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 42368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 423883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isFloatingPoint() && NoExcessFPPrecision) 423915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 424015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 424201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 424301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4244a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 424501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4246ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 42470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 42480bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 42490bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4250ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4251ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 42520bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 42530bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 42540bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4255ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 425601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 425701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 425801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4259a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 426001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 426101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 426201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 42638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 42658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 42668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 42678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 426983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NVT.isInteger() && "Operators don't apply to FP!"); 427023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 427123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 42728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 42738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 42768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4277456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 42788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 42808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 42818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 428215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 428315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4284456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 42858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 42878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 42888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 428923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4290456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 42918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42920aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 42930aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4294456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4295456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 42960aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 42970aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 4298126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands Result = TLI.LowerOperation(Tmp3, DAG); 42990aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 430069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 4301475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 43020aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 43030aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 430483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 43050aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 43060aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 430769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 43080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4309466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 43100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 43110aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4312456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 43130aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 43140aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4315466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4316466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 431762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 431862f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 431962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 432062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 432155b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4322b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4323d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4324d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 43254c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 43274c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4328466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 43298bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel case ISD::SELECT: { 433003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 433103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 43328bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel 433383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT2 = Tmp2.getValueType(); 43348bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel assert(VT2 == Tmp3.getValueType() 4335ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel && "PromoteOp SELECT: Operands 2 and 3 ValueTypes don't match"); 4336ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // Ensure that the resulting node is at least the same size as the operands' 4337ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // value types, because we cannot assume that TLI.getSetCCValueType() is 4338ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // constant. 4339ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel Result = DAG.getNode(ISD::SELECT, VT2, Node->getOperand(0), Tmp2, Tmp3); 434003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 43418bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel } 43429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 43439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 43449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 43459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4346456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 43479373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4348d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4349d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4350d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4351d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4352d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 435383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 435483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), 4355d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4356d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4357fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4358fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4359fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4362fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4363fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4365fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4366fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4367fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4368fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4369456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 43705b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 437183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 4372b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 437300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 437483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), NVT), Tmp1); 4375fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4376fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4377fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 437800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 437983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 438083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), NVT)); 4381fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4382fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4383fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 43847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 43857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 43866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 43874aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 43884aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 43894aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 439003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 439103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 439203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4393456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4395456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4396456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 439803c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 439903c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 440003c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 44013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 44027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 44037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 44047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 44057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 4406475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDValue Op) { 44071597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 44081597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 44091597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 4410475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Vec = Op.getOperand(0); 4411475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx = Op.getOperand(1); 44121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 441383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = Vec.getValueType(); 441483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = TVT.getVectorNumElements(); 44151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 44167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 44177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 44187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 44197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 44207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4421475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = TLI.LowerOperation(Op, DAG); 44227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 44237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 44247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 44277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 44287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 44297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4430844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 44317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 44347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 44381597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 44397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 44407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 444155030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 44427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 4443475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 44441597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 444555030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 44461597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 44471597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 44481597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 444955030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 44507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 44511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 44527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 44541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 44557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 44561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 44577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 44587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 4459475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 4460475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 44617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 446383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = Op.getValueType().getSizeInBits()/8; 44647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 44657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 446690bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 44678e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Idx.getValueType().bitsGT(TLI.getPointerTy())) 4468f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 446990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4470f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 447190bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 44727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 44737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 44751597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 44767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 44771597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 44781597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 44797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 44806595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 4481475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDValue Op) { 44826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 44836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 4484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Vec = Op.getOperand(0); 4485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx = LegalizeOp(Op.getOperand(1)); 44866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 448783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = Vec.getValueType().getVectorNumElements(); 44886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 448983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NumElems == Op.getValueType().getVectorNumElements()) { 44906595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 44917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 44926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 44936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 44946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 4495475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 44966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 44976595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 44986595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 44996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 45006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 45016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 45026595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 45036595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45046595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 45056595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 45074aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 45084aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4509750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4510750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4511750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4512750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4513750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4514475871a144eb604ddaf37503397ba0941442e5fbDan Gohman/// LHS, and the SDValue returned in RHS has a nil SDNode value. 4515475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDValue &LHS, 4516475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &RHS, 4517475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &CC) { 4518475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Result; 4519750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4520750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4521750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4522750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4523750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4524750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4525750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4526750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4527750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4528750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4529750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 453083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LHS.getValueType().isInteger()) { 453183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 453283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 4533750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4534750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4535750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4536750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4537750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4538750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4539750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4540750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4541750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4542750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4543750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4544750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4545750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4546750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4547750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4548750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4549750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4550750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4551750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4552750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4553750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4554750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4555750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4556750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4557750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4558750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4559750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4560750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4561750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4562750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4563750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 45642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 456583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 45662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 45672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 45686518c6ed7ea609696304bbbe848342cacd001f12Evan Cheng RTLIB::Libcall LC1 = RTLIB::UNKNOWN_LIBCALL, LC2 = RTLIB::UNKNOWN_LIBCALL; 45692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 45702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 45712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 457256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 45732b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 45752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 457656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 45772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 45792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 458056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 45812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 45832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 458456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 45852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 45872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 458856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 45892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 45912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 459256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 45932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4595d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4596d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 45972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 45985efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 45992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 460156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 46022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 46042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 460556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 46072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 460856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 46092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 461156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 461456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 461756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 46182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 461956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 462056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 462156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 46222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 46232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4625f9516208e57364ab1e7d8748af1f59a2ea5fb572Duncan Sands 4626475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Dummy; 4627475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { LHS, RHS }; 46284bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands Tmp1 = ExpandLibCall(LC1, DAG.getMergeValues(Ops, 2).Val, 4629b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 46302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4631d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 463256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 46335b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 46345922f561c65968ef1865cc8434d191041e450602Nate Begeman CC); 46354bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands LHS = ExpandLibCall(LC2, DAG.getMergeValues(Ops, 2).Val, 4636b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 46375b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHS), LHS, Tmp2, 4638d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 46392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4640475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 46412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 464221cacc4de88098a6f2ccfcde18ccec0aa6654f3eEvan Cheng LHS = LegalizeOp(Tmp1); 46432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 46442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 46452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4647475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4649638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4650638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4651638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4652638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4653638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4654638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4655638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4656638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4657638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 46585b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETEQ); 46595b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); 4660638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 46615b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETNE); 46625b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); 4663638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4664638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4665475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 4666638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4667638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4668638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4669638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4675750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4684750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4685750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4686750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4687750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4688750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4689750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4690750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4691002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman CST->isNullValue()) || // X < 0 4692750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4693750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4694750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4695750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4696750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4697750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4698750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4699750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4700750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 47012e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4702750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4703750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4704750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4705750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4706750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4707750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4708750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4709750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4710750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4711750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4712750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4713750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4714750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4715750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4716750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4717750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4718750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 47192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 47205b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, 47215922f561c65968ef1865cc8434d191041e450602Nate Begeman LowCC, false, DagCombineInfo); 47222e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 47235b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, LowCC); 47245b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 47252e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 47262e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 47275b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHSHi), LHSHi, 47285922f561c65968ef1865cc8434d191041e450602Nate Begeman RHSHi,CC); 47292e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 47302e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 47312e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 4732002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 4733002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 47342e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 47352e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 4736002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 47372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 47382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 47392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 47402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 47412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 47422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 4743475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 47442e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 47455b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 47462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 47472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 47485b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result=DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 47495922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETEQ); 47502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 47512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 47522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 4753475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Tmp2 = SDValue(); 47542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4755750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4756750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 47572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4759750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4760750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4761750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 47621401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 47631401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 47641401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 47651401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 4766475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::EmitStackConvert(SDValue SrcOp, 4767475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT SlotVT, 4768475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT) { 476935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 4770364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang unsigned SrcAlign = TLI.getTargetData()->getPrefTypeAlignment( 4771364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang SrcOp.getValueType().getTypeForMVT()); 4772475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FIPtr = DAG.CreateStackTemporary(SlotVT, SrcAlign); 4773364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 4774bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 477569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 4776364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 477783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcSize = SrcOp.getValueType().getSizeInBits(); 477883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SlotSize = SlotVT.getSizeInBits(); 477983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DestSize = DestVT.getSizeInBits(); 4780364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang unsigned DestAlign = TLI.getTargetData()->getPrefTypeAlignment( 4781364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang DestVT.getTypeForMVT()); 47821401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 47831401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 47841401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 4785475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store; 4786364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 47871401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 478869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 4789a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0, 4790a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman SlotVT, false, SrcAlign); 47911401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 47921401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 479369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 4794a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0, 4795364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, SrcAlign); 47961401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 479735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 479835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 47991401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 4800364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0, false, DestAlign); 48011401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 4803364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT, 4804364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, DestAlign); 480535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 480635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 4807475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 48084352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 48094352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 4810475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 481169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4812bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 481369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 481469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4815475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 4816a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0); 481769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 4818a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(SPFI), 0); 48194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 48204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 48214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4822ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 482307a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4824475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4825ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4826ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 482787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4828033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4829ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 4830475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SplatValue = Node->getOperand(0); 4831f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4832475871a144eb604ddaf37503397ba0941442e5fbDan Gohman // FIXME: it would be far nicer to change this into map<SDValue,uint64_t> 4833f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // and use a bitmask instead of a list of elements. 4834475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::vector<unsigned> > Values; 4835033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 48362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 48372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 48382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 48392eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 48402eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4841033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4842475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue V = Node->getOperand(i); 484389a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4844033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4845ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4846033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 4847475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SplatValue = SDValue(0,0); 48482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 48492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 48502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 48512eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 48522eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 48532eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4854ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4855ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4856ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4857ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4858ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4859ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4860ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4861ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4862ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4863ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4864ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 48652eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4866ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 486783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4868ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4869033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4870ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4871ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 487202a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner CV.push_back(ConstantFP::get(V->getValueAPF())); 4873ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 487402a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 487502a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner CV.push_back(ConstantInt::get(V->getAPIntValue())); 4876ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4877ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 487802a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner const Type *OpNTy = 487983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Node->getOperand(0).getValueType().getTypeForMVT(); 4880ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4881ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4882ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 48839d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4884475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 488569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 48863069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 4887ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 48882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 48892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 48902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 489183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 4892475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getConstant(0, MaskVT.getVectorElementType()); 4893475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::vector<SDValue> ZeroVec(NumElems, Zero); 4894475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4895bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4896033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 48972eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 48984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 48992eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 4900475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LowValVec = 49012eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 49022eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49032eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 49042eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 49052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 49062eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 49072eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49082eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49092eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4910033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4911033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4912033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4913f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Get the two values in deterministic order. 4914475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val1 = Node->getOperand(1); 4915475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val2; 4916475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::vector<unsigned> >::iterator MI = Values.begin(); 4917f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (MI->first != Val1) 4918f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = MI->first; 4919f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 4920f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = (++MI)->first; 4921f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4922f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If Val1 is an undef, make sure end ends up as Val2, to ensure that our 4923f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // vector shuffle has the undef vector on the RHS. 4924f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val1.getOpcode() == ISD::UNDEF) 4925f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::swap(Val1, Val2); 4926f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4927033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 492883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 492983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskEltVT = MaskVT.getVectorElementType(); 4930475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::vector<SDValue> MaskVec(NumElems); 4931f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4932f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val1. 4933f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val1Elts = Values[Val1]; 4934f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val1Elts.size(); i != e; ++i) 4935f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val1Elts[i]] = DAG.getConstant(0, MaskEltVT); 4936f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4937f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val2. 4938f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val2Elts = Values[Val2]; 4939f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val2Elts.size(); i != e; ++i) 4940f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val2.getOpcode() != ISD::UNDEF) 4941f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getConstant(NumElems, MaskEltVT); 4942f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 4943f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getNode(ISD::UNDEF, MaskEltVT); 4944f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4945475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4946bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4947033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4948f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If the target supports SCALAR_TO_VECTOR and this shuffle mask, use it. 49494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 49504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4951f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val1); 4952f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val2); 4953475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Val1, Val2, ShuffleMask }; 4954033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4955033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4956f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops, 3); 4957033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4958033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4959ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4961ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4962ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 496383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4964ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4965475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FIPtr = DAG.CreateStackTemporary(VT); 4966ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4967ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4968475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Stores; 496983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned TypeByteSize = Node->getOperand(0).getValueType().getSizeInBits()/8; 4970ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4971ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4972ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4973ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4974ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4975841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4976ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4977475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4978ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4979ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4980786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 49818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4982ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4983ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4984475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StoreChain; 4985ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4986bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4987bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4988ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4989ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4990ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4991ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4992466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4993ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4994ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49955b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 4996475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op, SDValue Amt, 4997475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 49985b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 4999475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 50005b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 50015b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5002475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, Amt }; 500383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHSL.getValueType(); 5004f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 50055b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 50065b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 50075b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 50085b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5009e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5010e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5011e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5012e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5013475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDValue Op,SDValue Amt, 5014475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 5015e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5016e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5017f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 501883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5019475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShAmt = LegalizeOp(Amt); 502083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShTy = ShAmt.getValueType(); 502183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned ShBits = ShTy.getSizeInBits(); 502283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned VTBits = Op.getValueType().getSizeInBits(); 502383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5024f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 50257a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5026f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 5027f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 5028f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5029475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 5030f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5031f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5032f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5033f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5034f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5035f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5036f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5037f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5038f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5039ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5040ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5041ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5042f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5043f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5044f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5045f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5046f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5047f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5048f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5049f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5050f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5051f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5052f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5053f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5054f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5055f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5056ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5057ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5058ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5059f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5060f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5061f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5062f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5063f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5064f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5065f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5066f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5067f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5068edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5069f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5070f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5071edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5072f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5073edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5074f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5075ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5076ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5077edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5078ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5079f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5080f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5081f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5082f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5083f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5084f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5085f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5086f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5087f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 50880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 50900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 509191dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 509291dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5093ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 50940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50959e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 50969e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 509791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 50980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 50990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 510091dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 51010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 5103475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 51040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 51050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 51060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 51070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 51080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 51090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 51110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 51120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 51130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 51150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 51160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 51170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 51180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51229e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 51239e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 51249e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 51250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 5126475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 51270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 51280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 51290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 5131475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 51320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 51330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 51340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 51350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 51360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 51370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 51380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 51390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 51410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 51420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 51430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 51440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 51450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 51470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 51480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 51490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 51500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 51510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5156e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 515777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 51589c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 515977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 516077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 516177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 516277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 5163475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, 5164475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isSigned, SDValue &Hi) { 51656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 51666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 51676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 51686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 5169475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InChain = DAG.getEntryNode(); 51706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 517177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 517247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 517377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 517483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ArgVT = Node->getOperand(i).getValueType(); 517583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *ArgTy = ArgVT.getTypeForMVT(); 517647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5177d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 517800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 517947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 518077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 5181475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), 5182460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands TLI.getPointerTy()); 5183edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 51840d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 518583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *RetTy = Node->getValueType(0).getTypeForMVT(); 5186475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::pair<SDValue,SDValue> CallInfo = 518700fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, 518800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, Callee, Args, DAG); 51890d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 51906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 51916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 51926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 51936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 5194475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 51950d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 519677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 519777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5198456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 519999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 520077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 520199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 520299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 520377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 520422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 520522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 520622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52077f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman/// LegalizeINT_TO_FP - Legalize a [US]INT_TO_FP operation. 52087f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman/// 52097f8613e5b8398b688080e3c944ab8c11593e1ed0Dan GohmanSDValue SelectionDAGLegalize:: 52107f8613e5b8398b688080e3c944ab8c11593e1ed0Dan GohmanLegalizeINT_TO_FP(SDValue Result, bool isSigned, MVT DestTy, SDValue Op) { 52117f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman bool isCustom = false; 52127f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Tmp1; 52137f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman switch (getTypeAction(Op.getValueType())) { 52147f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case Legal: 52157f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman switch (TLI.getOperationAction(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, 52167f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Op.getValueType())) { 52177f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman default: assert(0 && "Unknown operation action!"); 52187f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Custom: 52197f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman isCustom = true; 52207f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman // FALLTHROUGH 52217f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Legal: 52227f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = LegalizeOp(Op); 52237f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (Result.Val) 52247f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1); 52257f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman else 52267f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.getNode(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, 52277f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestTy, Tmp1); 52287f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (isCustom) { 52297f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = TLI.LowerOperation(Result, DAG); 52307f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (Tmp1.Val) Result = Tmp1; 52317f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 52327f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 52337f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Expand: 52347f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = ExpandLegalINT_TO_FP(isSigned, LegalizeOp(Op), DestTy); 52357f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 52367f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case TargetLowering::Promote: 52377f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = PromoteLegalINT_TO_FP(LegalizeOp(Op), DestTy, isSigned); 52387f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 52397f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 52407f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 52417f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case Expand: 52427f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = ExpandIntToFP(isSigned, DestTy, Op); 52437f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 52447f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case Promote: 52457f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = PromoteOp(Op); 52467f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (isSigned) { 52477f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 52487f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1, DAG.getValueType(Op.getValueType())); 52497f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } else { 52507f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Tmp1 = DAG.getZeroExtendInReg(Tmp1, 52517f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Op.getValueType()); 52527f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 52537f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (Result.Val) 52547f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1); 52557f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman else 52567f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.getNode(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, 52577f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestTy, Tmp1); 52587f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 52597f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman break; 52607f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 52617f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return Result; 52627f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman} 526322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52644c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 52654c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 5266475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize:: 5267475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntToFP(bool isSigned, MVT DestTy, SDValue Source) { 526883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SourceVT = Source.getValueType(); 5269034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman bool ExpandSource = getTypeAction(SourceVT) == Expand; 527022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52717f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman // Expand unsupported int-to-fp vector casts by unrolling them. 52727f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (DestTy.isVector()) { 52737f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (!ExpandSource) 52747f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return LegalizeOp(UnrollVectorOp(Source)); 52757f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT DestEltTy = DestTy.getVectorElementType(); 52767f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman if (DestTy.getVectorNumElements() == 1) { 52777f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Scalar = ScalarizeVectorOp(Source); 52787f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Result = LegalizeINT_TO_FP(SDValue(), isSigned, 52797f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestEltTy, Scalar); 52807f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return DAG.getNode(ISD::BUILD_VECTOR, DestTy, Result); 52817f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 52827f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Lo, Hi; 52837f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SplitVectorOp(Source, Lo, Hi); 52847f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT SplitDestTy = MVT::getVectorVT(DestEltTy, 52857f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman DestTy.getVectorNumElements() / 2); 52867f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue LoResult = LegalizeINT_TO_FP(SDValue(), isSigned, SplitDestTy, Lo); 52877f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue HiResult = LegalizeINT_TO_FP(SDValue(), isSigned, SplitDestTy, Hi); 52887f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman return LegalizeOp(DAG.getNode(ISD::CONCAT_VECTORS, DestTy, LoResult, HiResult)); 52897f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman } 52907f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 52919845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc. 52929845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng if (!isSigned && SourceVT != MVT::i32) { 529334bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman // The integer value loaded will be incorrectly if the 'sign bit' of the 529422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 529522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 5296475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi; 5297034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5298475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo; 5299034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, Lo, Hi); 5300034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, Lo, Hi); 5301034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } else { 5302034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman // The comparison for the sign bit will use the entire operand. 5303034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Hi = Source; 5304034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 530522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 530622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 530722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 5308475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignedConv = ExpandIntToFP(true, DestTy, Source); 530922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5310475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignSet = DAG.getSetCC(TLI.getSetCCResultType(Hi), Hi, 531122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 531222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 5313475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 5314475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 531522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 531622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 531722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 531834bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 531922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5320475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 532122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 5322475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FudgeInReg; 532322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 532469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 53253069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 53268e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands else if (DestTy.bitsGT(MVT::f32)) 53274c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5328118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 532969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 53303069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 533169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32); 53329e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 53339e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 53349e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 533583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SCVT = SignedConv.getValueType(); 53364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 53374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 53384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 533983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SCVT.getSizeInBits() != DestTy.getSizeInBits()) { 534083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SCVT.getSizeInBits() * 2 == DestTy.getSizeInBits()); 5341d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman SignedConv = DAG.getNode(ISD::BUILD_PAIR, DestTy, 53424c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 53434c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 53444c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 53454c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 534622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 534722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 534822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 534922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 5350d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman switch (TLI.getOperationAction(ISD::SINT_TO_FP, SourceVT)) { 535122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 535222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 535322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 535422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 535522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 5356475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 535722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 535822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 535922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 536022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 536122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 536222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 536322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 536422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 536522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 5366034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5367475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SrcLo, SrcHi; 5368034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, SrcLo, SrcHi); 5369034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, SrcLo, SrcHi); 5370034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 537122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5372b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = isSigned ? 5373b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::getSINTTOFP(SourceVT, DestTy) : 5374b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::getUINTTOFP(SourceVT, DestTy); 5375b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unknown int value type"); 5376b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands 53776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 5378475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiPart; 5379475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = ExpandLibCall(LC, Source.Val, isSigned, HiPart); 5380110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (Result.getValueType() != DestTy && HiPart.Val) 5381a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Result = DAG.getNode(ISD::BUILD_PAIR, DestTy, Result, HiPart); 5382a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman return Result; 538322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 538422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 538522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 538622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 538722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 538822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 5389475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 5390475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0, 5391475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT) { 539222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 539322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 539422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 539523594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 5396475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackSlot = DAG.CreateStackTemporary(MVT::f64); 539723594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 539822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 5399475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 540022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5401475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = StackSlot; 5402475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5403408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5404408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5405408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 540622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 5407475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0Mapped; 540822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 540922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 5410475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignBit = DAG.getConstant(0x80000000u, MVT::i32); 541122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 541222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 541322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 541422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5416475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store1 = DAG.getStore(DAG.getEntryNode(), 54178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 541822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 5419475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 542022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 5421475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 542222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5423475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 542422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 5425475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Bias = DAG.getConstantFP(isSigned ? 542622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 542722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 542822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 542922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 5430475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 543122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 5432475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 543322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 543422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 543522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 543622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 54378e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsLT(MVT::f64)) { 54380bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 54390bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 54408e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsGT(MVT::f64)) { 5441118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 544222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 544322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 544422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 544522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 5446475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 544722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5448475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SignSet = DAG.getSetCC(TLI.getSetCCResultType(Op0), Op0, 544922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 545022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 5451475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 5452475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 545322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 545422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 545522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 545622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 545983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (Op0.getValueType().getSimpleVT()) { 546022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 546122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 546222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 546322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 546422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 546522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 546622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 546747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 546822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 5469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 547022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 5471475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FudgeInReg; 547222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 547369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 54743069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 547522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 547669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 547769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 547869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 54793069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 548069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32)); 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 548222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 549022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 5491475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDValue LegalOp, 5492475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT, 5493475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isSigned) { 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 549583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = LegalOp.getValueType(); 549622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 549822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 550022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 550183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 550283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() && "Ran out of possibilities!"); 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 550722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 551322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 551422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 552522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 552622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 553322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 553422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 553522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 553622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 553722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 553977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 554077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 554122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 5546475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDValue LegalOp, 5547475871a144eb604ddaf37503397ba0941442e5fbDan Gohman MVT DestVT, 5548475871a144eb604ddaf37503397ba0941442e5fbDan Gohman bool isSigned) { 554922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 555083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewOutTy = DestVT; 55519c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 555222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5553e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 555422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 555683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewOutTy = (MVT::SimpleValueType)(NewOutTy.getSimpleVT()+1); 555783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewOutTy.isInteger() && "Ran out of possibilities!"); 555866de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 556022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 556122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 556222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 556322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 556422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 556522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 556622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 556722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 556822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 556922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 557022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5571e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 557222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 557322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 557422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 557522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 557622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 557722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 557822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 557922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 558022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 558122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5582e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 558322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 55840d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 558522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5586a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5587a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 558827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 558927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 5590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 5591126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 559227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 559327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 559427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 559527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 5596475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Operation = SDValue(TLI.ReplaceNodeResults(Operation.Val, DAG), 0); 559727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 559827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 5599126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 560027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 560127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 560227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 560322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 560413689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 560522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 560622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 5607475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBSWAP(SDValue Op) { 560883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 560983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SHVT = TLI.getShiftAmountTy(); 5610475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 561183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (VT.getSimpleVT()) { 561222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 561322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 561422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 561522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 561622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 561722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 561822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 561922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 562022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 562122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 562222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 562422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 562522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 562722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 562822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 562922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 563022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 563122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 563222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 563522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 563622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 563722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 564122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 564322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 564422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 564522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 564622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 564722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 564822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 56490d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 565077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5651edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 565222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 565322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 5654475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op) { 565522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 565622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 565722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 565822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 565922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 566022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 566122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 566222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 566383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 566483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 566583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 566622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 566722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 5668475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2 = DAG.getConstant(mask[i], VT); 5669475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); 567022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 567122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 567222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 567322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 567422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 567522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 567622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 567722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 567822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 568022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 568222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 568322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 568422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 568522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 568683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 568783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 568883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 5690475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 569622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 569822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 570183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 5702475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2 = DAG.getConstant(~0ULL, VT); 5703475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getNode(ISD::AND, VT, 570422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 570522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 570622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 570722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 570822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 570922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 571083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), VT), 571122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 571222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 571322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 571422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 571522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5716e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5717475871a144eb604ddaf37503397ba0941442e5fbDan Gohman/// ExpandOp - Expand the specified SDValue into its two component pieces 57183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 57193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 57203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 57213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 5722475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){ 572383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 572483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 57253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 57263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 57278e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(((NVT.isInteger() && NVT.bitsLT(VT)) || VT.isFloatingPoint() || 572883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.isVector()) && "Cannot expand to FP value or to larger int value!"); 57293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57306fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 5731475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, std::pair<SDValue, SDValue> >::iterator I 57326fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 57336fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 57346fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 57356fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 57366fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 57373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 57383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5740348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5741348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 57426eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 57436eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 57446eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 57456eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5746475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue SrcLo, SrcHi, Src; 5747fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5748fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5749475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = TLI.LowerOperation( 5750fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 57516eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 57526eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 57536eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 57546eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 57556eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 57566eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5757348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5758e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 575939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5760e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 57613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 57623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 57631953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 57641953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 57651953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 57661953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 576718714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 576825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 576925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 577025f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 577125f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 577225f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5773fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5774fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5775fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5776fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 57773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 577883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5779050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); 5780050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); 5781050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); 57823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 57833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5784004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5785004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5786a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5787a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5788a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5789a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5790a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5791a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5792a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5793a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5794279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 57959f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57969f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5797004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5798004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5799d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 58008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 58018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 58028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5803d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 580427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 580527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5806c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5807c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5808c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5809c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 581027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 581127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 581227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 581327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 581427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 581527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 581627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 581727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 581858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 581958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 582058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58214bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 58224bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 58234bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 58244bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 58254bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 582658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 582783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits()-1, 582858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 582958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5830d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5831d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5832d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5833475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5834d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5835d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5836d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5837d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5838d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5839edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5840edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58419b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 58429b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 58439b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5844edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5845edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5846edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 584739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 584839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 58493becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 5850475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 5851475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 5852475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TopNotZero = DAG.getSetCC(TLI.getSetCCResultType(HLZ), HLZ, BitsC, 58537cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 5854475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 585539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 585639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 585739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 585839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 585939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 586039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 586139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 586239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 586339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 58643becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 5865475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 5866475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 5867475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue BotNotZero = DAG.getSetCC(TLI.getSetCCResultType(LTZ), LTZ, BitsC, 58687cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 5869475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 587039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 587139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 587239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 587339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 587439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 587539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5876edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5877acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 5878475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = Node->getOperand(0); // Legalize the chain. 5879475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = Node->getOperand(1); // Legalize the pointer. 5880acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5881acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5882acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5883acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 58848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5885acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 58860753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5887acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5888acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5889acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5890acc398c195a697795bff3245943d104eb19192b9Nate Begeman 58913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5892466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5893475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = LD->getChain(); // Legalize the chain. 5894475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LD->getBasePtr(); // Legalize the pointer. 5895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 58967f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman const Value *SV = LD->getSrcValue(); 5897d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5898d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5899d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5900466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5901466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 59027f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, SV, SVOffset, 5903d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5904004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5905004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5906004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5907475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Lo.getValue(1))); 59089f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 59099f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 59109f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5911004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5912004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5914466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 591583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = Lo.getValueType().getSizeInBits()/8; 5916466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 59170bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 59187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5919dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 59207f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, SV, SVOffset, 5921d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5922466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5925475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5927466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5928466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5929466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 59300753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5931466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5932466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 593383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = LD->getMemoryVT(); 5934548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5935b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5936b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5937548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 59387f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Load = DAG.getLoad(EVT, Ch, Ptr, SV, 5939d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5940548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5941475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Load.getValue(1))); 5942548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5943548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5944548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5945466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5946466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 59477f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, SV, 5948d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5949466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 59507f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, SV, 5951d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5952d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5953466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5954466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5955475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Lo.getValue(1))); 5956466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5957466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5958466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5959466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 596083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 5961466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5962466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5964466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5965466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5966466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5967466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5968466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5969466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5970466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 59713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 59743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 59753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 5976475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 59773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 59783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 59793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 59803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 59813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5984475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 59853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 59863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 598719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 598819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5989456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 599019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 599119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 59923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 5995475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TL, TH, FL, FH; 59969373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 59979373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 599819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 599919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 60009373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 60019373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 600219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 600319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 600419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 60059373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 60069373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 60078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 600813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 60098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 601013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 601113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 601213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 60133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 60143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 60153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6017edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 60193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 602083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 60218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 60228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 60233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 60263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 60273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6029edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 60313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 60323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 603335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 60344c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 60354c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 6036475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLo; 60374c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 60384c948eb373779718e5be36d7674382b52114bf65Chris Lattner 60394c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 60404c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 60414c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 60424c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 60434c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 60444c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 60454c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 60464c948eb373779718e5be36d7674382b52114bf65Chris Lattner 604735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6048475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp; 6049f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6050f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6051f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6052f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6053f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6054f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6055f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6056f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6057f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6058f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 60591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 606013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 606113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 606219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 606319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 60647b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 60657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 60667b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 60677b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 60687b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 606983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT0 = Node->getOperand(0).getValueType(); 60707b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 60717b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 60721a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60731a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 60741a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6075f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6076f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 60771401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6078f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 607935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 608035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 608135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6082f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 608327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6084308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6085308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6086308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 6087475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = TLI.LowerOperation(Op, DAG); 608827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 608927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6090475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), // Remember we legalized the chain. 609127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6092f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 609327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6094f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 609528873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_CMP_SWAP: { 6096475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = TLI.LowerOperation(Op, DAG); 6097d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth assert(Tmp.Val && "Node must be custom expanded!"); 6098d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth ExpandOp(Tmp.getValue(0), Lo, Hi); 6099475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), // Remember we legalized the chain. 6100d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth LegalizeOp(Tmp.getValue(1))); 6101d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth break; 6102d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth } 6103d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6104d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6105d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 61064e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 61074e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 610856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 610980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6110475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op; 6111f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6112f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6115f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6116d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6117f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6118f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 611980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 612080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 612107dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 612207dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 612307dffd6af673c73352150583150b242a93694f00Chris Lattner break; 612407dffd6af673c73352150583150b242a93694f00Chris Lattner } 612580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6126d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6127b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Node->getOperand(0).getValueType(), 6128b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands VT); 6129b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected uint-to-fp conversion!"); 6130b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 61314e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 613256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6133d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 613456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 613580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 6136475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op; 61378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 61388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 61418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 61428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 61448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 614607dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 614707dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 614807dffd6af673c73352150583150b242a93694f00Chris Lattner break; 614907dffd6af673c73352150583150b242a93694f00Chris Lattner } 615080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6151d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6152b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Node->getOperand(0).getValueType(), 6153b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands VT); 6154b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 6155b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 61564e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 615756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 61584e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 615905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 616050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6161475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); 616250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 6163475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 616450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 616550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 616650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 616750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 616850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 616950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 617050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 617150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 617250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 617379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 617479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 617579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 6176002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if (ShAmt->getAPIntValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 617779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 6178475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2], HiOps[3]; 617979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 618079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 618179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 618279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 618379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 618479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 618579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 618679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 618779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 618879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 618979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 619079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6191e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6192348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6193e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 61944759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 61954759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 619605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 619705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 619805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 619905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6200348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62014759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62024759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62034759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6204e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6205460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SHL_I64, Node, false/*left shift=unsigned*/, Hi); 6206e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 620705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6208e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 620905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 621050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6211475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); 621250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 6213475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 621450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 621550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 621650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 621750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 621850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 621950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 622050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 622150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 622250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6223e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6224348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6225e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62264759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62274759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 622805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 622905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 623005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 623105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6232348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62334759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62344759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62354759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6236e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6237460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRA_I64, Node, true/*ashr is signed*/, Hi); 6238e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 623905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 624005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 624105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 624250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6243475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); 624450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 6245475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 624650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 624750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 624850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 624950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 625050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 625150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 625250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 625350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 625450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6255e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6256348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6257e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62584759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62594759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 626005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 626105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 626205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 626305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6264348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62654759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62664759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62674759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6268e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6269460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRL_I64, Node, false/*lshr is unsigned*/, Hi); 6270e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 627105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6272e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6273edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 62748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 62758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 62768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 62778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 6278475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = TLI.LowerOperation(Op, DAG); 627969bfb15ecd71881ec8d01be94af99b6d90d2fe01Duncan Sands if (Result.Val) { 628069bfb15ecd71881ec8d01be94af99b6d90d2fe01Duncan Sands ExpandOp(Result, Lo, Hi); 62818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 62828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 6286475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 62878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 62888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 628979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6290475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2], HiOps[3]; 6291bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6292bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6293bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6294bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6295551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 629679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6297bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 629879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6299551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 630079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6301bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 630279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6303551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 630484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 63058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6306b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6307b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6308b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6309b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6310475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 6311b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6312b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6313b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6314475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 6315475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 6316b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6317b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6318b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6319b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6320b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6321b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6322b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6323b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6324b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6325b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6326b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6327b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6328b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6329b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6330b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6331b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6332b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6333475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 6334b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6335b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6336b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6337475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6338475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 6339b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6340b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6341b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6342b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6343b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6344b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6345b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6346b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6347b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6348c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 63497d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 63507d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 6351475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue New = TLI.LowerOperation(Op, DAG); 63528829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 63538829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 63547d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 63557d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 63567d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 63577d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 63583f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 63593f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6360525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6361525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6362525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6363475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 6364c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6365c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 63662e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 63672e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6368525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6369525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 637076c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 637176c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman if (DAG.MaskedValueIsZero(Node->getOperand(0), HighMask) && 637276c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman DAG.MaskedValueIsZero(Node->getOperand(1), HighMask)) { 6373525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6374525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6375525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6376525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6377475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Hi = SDValue(Lo.Val, 1); 6378525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6379525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6380525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6381525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6382525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6383525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6384525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6385525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6386525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 63872e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6388525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6389525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6390525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6391525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6392475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Hi = SDValue(Lo.Val, 1); 6393525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6394525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6395525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6396525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6397525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6398525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6399525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6400525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6401525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6402525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6403525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6404475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6405525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6406525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6407525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 640856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 640956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 641056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 641156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6412a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 641356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 64148eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 64158eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 64168eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 64178eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 64188eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 64198eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 64208eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 64218eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 64228eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6423c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 64243f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6425525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 6426460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::MUL_I64, Node, false/*sign irrelevant*/, Hi); 6427c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6428c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 642956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 6430460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SDIV_I64, Node, true, Hi); 643156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 6433460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UDIV_I64, Node, true, Hi); 643456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 6436460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SREM_I64, Node, true, Hi); 643756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 6439460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UREM_I64, Node, true, Hi); 644056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 64415c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 64421a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6443460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::ADD_F32, 6444460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F64, 6445460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F80, 6446460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_PPCF128), 644756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64481a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64491a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6450460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::SUB_F32, 6451460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F64, 6452460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F80, 6453460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_PPCF128), 645456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64551a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6457460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::MUL_F32, 6458460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F64, 6459460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F80, 6460460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_PPCF128), 646156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64621a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64631a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6464460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::DIV_F32, 6465460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F64, 6466460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F80, 6467460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_PPCF128), 646856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6470b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands case ISD::FP_EXTEND: { 6471ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6472ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6473ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6474ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6475ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6476ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6477ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6478ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6479ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6480ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6481ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6482b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPEXT(Node->getOperand(0).getValueType(), VT); 6483b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND!"); 6484b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, true, Hi); 64851a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6486b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands } 6487b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands case ISD::FP_ROUND: { 6488b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPROUND(Node->getOperand(0).getValueType(), 6489b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands VT); 6490b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND!"); 6491b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands Lo = ExpandLibCall(LC, Node, true, Hi); 64921a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6493b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands } 6494c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6495460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::POWI_F32, 6496460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_F64, 6497460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_F80, 6498460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_PPCF128), 6499c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6500c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 65012bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 65022bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 65032bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 65042bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 65052bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 650698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 650798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 650898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 650956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 651098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 651156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6512007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6513007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 651456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 651556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6516007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6517007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 651856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 651956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6520007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6521007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 652256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 65232bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FTRUNC: 65242bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, 65252bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128); 65262bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 65272bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FFLOOR: 65282bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, 65292bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128); 65302bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 65312bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FCEIL: 65322bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::CEIL_F32, RTLIB::CEIL_F64, 65332bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128); 65342bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 65352bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FRINT: 65362bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::RINT_F32, RTLIB::RINT_F64, 65372bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::RINT_F80, RTLIB::RINT_PPCF128); 65382bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 65392bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman case ISD::FNEARBYINT: 65402bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64, 65412bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128); 65422bb1e3eede14dd8a965506465e2876fb1ae765c2Dan Gohman break; 654398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 654498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6545460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false, Hi); 654698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 654798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6548966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6549f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6550475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp; 6551f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6552f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6553f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6554f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6555f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6556f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6557f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6558f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6559475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = (VT == MVT::f64) 6560966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6561966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6562966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6563966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6564966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6565966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6566966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6567966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6568966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6569966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6570f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6571f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6572f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6573f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6574f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6575f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6576475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = (VT == MVT::f64) 6577966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6578966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6579966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6580966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6581966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6582966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6583966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6584966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6585966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6586912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6587912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6588912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6589912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6590912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6591912095becac923ff614d7b07728eb345ada67765Evan Cheng } 65927df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 65937df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 65947df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 659583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(0).getValueType(); 6596cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6597cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // Promote the operand if needed. Do this before checking for 6598cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // ppcf128 so conversions of i16 and i8 work. 6599cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen if (getTypeAction(SrcVT) == Promote) { 6600475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = PromoteOp(Node->getOperand(0)); 6601cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Tmp = isSigned 6602cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 6603cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen DAG.getValueType(SrcVT)) 6604cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen : DAG.getZeroExtendInReg(Tmp, SrcVT); 6605cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 6606cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SrcVT = Node->getOperand(0).getValueType(); 6607cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen } 6608cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6609a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::ppcf128 && SrcVT == MVT::i32) { 6610f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6611ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6612ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6613ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6614ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6615ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6616f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6617ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6618ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6619ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6620ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 66216e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6622ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6623ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6624ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6625ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6626ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6627ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6628ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6629ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6630ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6631ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6632ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6633ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 66346e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 66356e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6636f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 66376e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 66386e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 66396e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 66406e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 66416e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 66426e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 66436e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 66446e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 66456e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 66466e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 66476e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 66486e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 66496e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 66506e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 66516e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 66527df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 6653a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 6654a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Node->getOperand(0)); 6655110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 66566ad2f930da0ebadb0e000397cea8384c650877bbEvan Cheng // float to i32 etc. can be 'expanded' to a single node. 6657110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng ExpandOp(Lo, Lo, Hi); 66587df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 66597df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 666098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 66613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 666283397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 666383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 666483397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 666583397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 666613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 666713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 666813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 666983397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 667005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 667105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 66726b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman bool isNew = 66736b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 667405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 66753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 66763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 66777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 66787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6679475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid SelectionDAGLegalize::SplitVectorOp(SDValue Op, SDValue &Lo, 6680475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 668183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Cannot split non-vector type!"); 6682c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 668383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElements = Op.getValueType().getVectorNumElements(); 6684c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 66855db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 668683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewEltVT = Op.getValueType().getVectorElementType(); 66875db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 66885db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 66895db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 66905db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 669183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Lo = MVT::getVectorVT(NewEltVT, NewNumElts_Lo); 669283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Hi = MVT::getVectorVT(NewEltVT, NewNumElts_Hi); 66935db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6694c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6695475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, std::pair<SDValue, SDValue> >::iterator I 6696c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6697c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6698c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6699c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6700c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6701c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6702c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6703c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6704e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6705e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 670639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6707e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6708e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6709daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6710daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6711daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6712daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 67137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 67147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 67179fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 67186867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (ConstantSDNode *Idx = dyn_cast<ConstantSDNode>(Node->getOperand(2))) { 67196867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Node->getOperand(0), Lo, Hi); 67206867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman unsigned Index = Idx->getValue(); 6721475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ScalarOp = Node->getOperand(1); 67226867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (Index < NewNumElts_Lo) 67236867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 67246867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index)); 67256867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman else 67266867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 67276867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index - NewNumElts_Lo)); 67286867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman break; 67296867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman } 6730475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp = PerformInsertVectorEltInMemory(Node->getOperand(0), 67316867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(1), 67326867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(2)); 67336867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Tmp, Lo, Hi); 67349fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 67359fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 67366c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 67376c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 6738475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Mask = Node->getOperand(2); 6739475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops; 674083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 67416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 67436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 67446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 67456c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 6746475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue IdxNode = Mask.getOperand(i); 67475922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 67485922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 67495922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 67505922f561c65968ef1865cc8434d191041e450602Nate Begeman } 67515922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 6752475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InVec = Node->getOperand(0); 67536c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67546c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67556c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67566c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67576c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67586c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67596c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67606c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67616c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 67626c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67636c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 6764475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue IdxNode = Mask.getOperand(i); 67655922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 67665922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 67675922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 67685922f561c65968ef1865cc8434d191041e450602Nate Begeman } 67695922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 6770475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InVec = Node->getOperand(0); 67716c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67726c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67736c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67746c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67756c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67766c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67776c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 677892879f3a9e6625d4a17a3d93e6250a59b0497660Mon P Wang Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &Ops[0], Ops.size()); 67796c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 67806c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6782475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> LoOps(Node->op_begin(), 67835db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 67845db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6785c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6786475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 67877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 67885db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6789c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6790c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 67917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 67925db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 67937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 67947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 67957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 6798475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> LoOps(Node->op_begin(), 67997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 68005db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 68016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 6802475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> HiOps(Node->op_begin()+NewNumSubvectors, 68037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 68045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 68057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 68066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 68076595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6808c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6809475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Cond = Node->getOperand(0); 6810c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6811475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 6812c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6813c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6814c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 681583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Cond.getValueType().isVector()) { 6816c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6817475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CL, CH; 6818c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 68195db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 68205db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6821c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6822c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 68235db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 68245db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6825c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6826c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6827c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 682880c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner case ISD::SELECT_CC: { 6829475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CondLHS = Node->getOperand(0); 6830475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CondRHS = Node->getOperand(1); 6831475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CondCode = Node->getOperand(4); 683280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner 6833475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 683480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SplitVectorOp(Node->getOperand(2), LL, LH); 683580c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SplitVectorOp(Node->getOperand(3), RL, RH); 683680c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner 683780c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner // Handle a simple select with vector operands. 683880c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Lo = DAG.getNode(ISD::SELECT_CC, NewVT_Lo, CondLHS, CondRHS, 683980c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner LL, RL, CondCode); 684080c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Hi = DAG.getNode(ISD::SELECT_CC, NewVT_Hi, CondLHS, CondRHS, 684180c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner LH, RH, CondCode); 684280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner break; 684380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner } 6844b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 6845475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 6846b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(0), LL, LH); 6847b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(1), RL, RH); 6848b43e9c196542acc80c9e4643809661065710848fNate Begeman Lo = DAG.getNode(ISD::VSETCC, NewVT_Lo, LL, RL, Node->getOperand(2)); 6849b43e9c196542acc80c9e4643809661065710848fNate Begeman Hi = DAG.getNode(ISD::VSETCC, NewVT_Hi, LH, RH, Node->getOperand(2)); 6850b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 6851b43e9c196542acc80c9e4643809661065710848fNate Begeman } 68527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 68537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 68547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 68557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 68567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 68577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 68587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 68597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 68607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6861826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 68627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 68637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6864089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6865089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6866089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6867089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6868475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 6869c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6870c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6871c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68725db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 68735db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6874c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6875c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 68767f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_ROUND: 6877826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6878475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue L, H; 6879826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6880826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68815db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 68825db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6883826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6884826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6885826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6886826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6887826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6888826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6889826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6890826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6891826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6892b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6893b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6894b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6895b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 68967f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::UINT_TO_FP: 68977f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::TRUNCATE: 68987f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ANY_EXTEND: 68997f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::SIGN_EXTEND: 69007f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ZERO_EXTEND: 69017f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_EXTEND: { 6902475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue L, H; 6903826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6904826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 69055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 69065db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6907826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6908826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 69097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 69107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 6911475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = LD->getChain(); 6912475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LD->getBasePtr(); 69137f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman ISD::LoadExtType ExtType = LD->getExtensionType(); 69147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 69157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 69167f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemoryVT = LD->getMemoryVT(); 69177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 69187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 69197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 69207f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman assert(LD->isUnindexed() && "Indexed vector loads are not supported yet!"); 69217f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Offset = DAG.getNode(ISD::UNDEF, Ptr.getValueType()); 69227f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 69237f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemNewEltVT = MemoryVT.getVectorElementType(); 69247f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemNewVT_Lo = MVT::getVectorVT(MemNewEltVT, NewNumElts_Lo); 69257f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemNewVT_Hi = MVT::getVectorVT(MemNewEltVT, NewNumElts_Hi); 69267f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 69277f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Lo = DAG.getLoad(ISD::UNINDEXED, ExtType, 69287f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman NewVT_Lo, Ch, Ptr, Offset, 69297f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SV, SVOffset, MemNewVT_Lo, isVolatile, Alignment); 69307f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman unsigned IncrementSize = NewNumElts_Lo * MemNewEltVT.getSizeInBits()/8; 6931c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 69320bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 69337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6934dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 69357f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Hi = DAG.getLoad(ISD::UNINDEXED, ExtType, 69367f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman NewVT_Hi, Ch, Ptr, Offset, 69377f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SV, SVOffset, MemNewVT_Hi, isVolatile, Alignment); 6938c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6939c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6940c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6941475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6942c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6943c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6944c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6945c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6946c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6947c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 69487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 69497692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 69507692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 6951475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = Node->getOperand(0); 695283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!InOp.getValueType().isVector() || 695383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands InOp.getValueType().getVectorNumElements() == 1) { 695410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 695510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 695610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 69572920d2b7b601d9dfcec783cb91316f35b6811be1Mon P Wang unsigned LdAlign = TLI.getTargetData()->getPrefTypeAlignment( 69582920d2b7b601d9dfcec783cb91316f35b6811be1Mon P Wang Op.getValueType().getTypeForMVT()); 6959475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = DAG.CreateStackTemporary(InOp.getValueType(), LdAlign); 6960a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman int FI = cast<FrameIndexSDNode>(Ptr.Val)->getIndex(); 69617692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6962475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue St = DAG.getStore(DAG.getEntryNode(), 696369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 6964a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(FI), 0); 696569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 6966a54cf176613f9ae8301519a61b8935652c0fb8aeDan Gohman PseudoSourceValue::getFixedStack(FI), 0); 69677692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 696810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 696910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 69705db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 69715db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 697210a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 69737692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6974c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6975c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6976c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 697740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6978c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 697910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6980c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6981c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6982c7029805ef35ce9805931067b841e6af11db382eChris Lattner 698389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 698489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 698589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 6986475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ScalarizeVectorOp(SDValue Op) { 698783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Bad ScalarizeVectorOp invocation!"); 6988c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 698983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT = Op.getValueType().getVectorElementType(); 699083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().getVectorNumElements() == 1); 6991c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 6993475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::map<SDValue, SDValue>::iterator I = ScalarizedNodes.find(Op); 69947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6995c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6996475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 6997c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 69982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6999e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 700039833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 7001e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 70027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 70037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 70047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 70057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 70067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 70077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 70087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 70097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 70107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 70117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 70127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 70137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 70147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 7015826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 70167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 70177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 70187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 70197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 7020c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 70217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 7023c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 70247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 70257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 70267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 70277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 70287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 70297f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_TO_SINT: 70307f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_TO_UINT: 70317f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::SINT_TO_FP: 70327f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::UINT_TO_FP: 70337f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::SIGN_EXTEND: 70347f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ZERO_EXTEND: 70357f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::ANY_EXTEND: 70367f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::TRUNCATE: 70377f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_EXTEND: 70387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 70397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 70407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 70417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 70429e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 70437f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman case ISD::FP_ROUND: 70449e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 70459e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 70469e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70479e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 70489e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 70497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 70507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 7051475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 7052475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 70537f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman ISD::LoadExtType ExtType = LD->getExtensionType(); 70547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 70557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 70567f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MVT MemoryVT = LD->getMemoryVT(); 70577f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman unsigned Alignment = LD->getAlignment(); 70587f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman bool isVolatile = LD->isVolatile(); 70597f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 70607f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman assert(LD->isUnindexed() && "Indexed vector loads are not supported yet!"); 70617f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman SDValue Offset = DAG.getNode(ISD::UNDEF, Ptr.getValueType()); 70627f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman 70637f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman Result = DAG.getLoad(ISD::UNINDEXED, ExtType, 70647f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman NewVT, Ch, Ptr, Offset, SV, SVOffset, 70657f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman MemoryVT.getVectorElementType(), 70667f8613e5b8398b688080e3c944ab8c11593e1ed0Dan Gohman isVolatile, Alignment); 70677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 7068c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7069c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 7070c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7071c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 70727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 70737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 70757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 70767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 70777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 7078c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 70797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 70806595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 70816595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 70826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 70836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 70857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 7086475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue EltNum = Node->getOperand(2).getOperand(0); 70877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 70887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 70897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 70907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 70912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 70927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 70937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 70947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 70966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 7097446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng case ISD::BIT_CONVERT: { 7098475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0 = Op.getOperand(0); 709983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Op0.getValueType().getVectorNumElements() == 1) 7100446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Op0 = ScalarizeVectorOp(Op0); 7101446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op0); 7102db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 7103446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng } 71047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7105b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 71067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 71077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7108b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 710980c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner case ISD::SELECT_CC: 711080c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Result = DAG.getNode(ISD::SELECT_CC, NewVT, Node->getOperand(0), 711180c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Node->getOperand(1), 711280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner ScalarizeVectorOp(Op.getOperand(2)), 711380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner ScalarizeVectorOp(Op.getOperand(3)), 711480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Node->getOperand(4)); 711580c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner break; 71160d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman case ISD::VSETCC: { 7117475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0 = ScalarizeVectorOp(Op.getOperand(0)); 7118475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op1 = ScalarizeVectorOp(Op.getOperand(1)); 71190d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Op0), Op0, Op1, 71200d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Op.getOperand(2)); 71210d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SELECT, NewVT, Result, 71220d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(-1ULL, NewVT), 71230d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(0ULL, NewVT)); 71240d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman break; 71250d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman } 7126c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7127c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7128c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7129c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 71307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 71317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7132c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7133c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7134c7029805ef35ce9805931067b841e6af11db382eChris Lattner 71353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 71363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 71373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 71389c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 71393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 71403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 71423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 71433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7144