LegalizeDAG.cpp revision c563e1d8fe2e0e9bb47e99ec55c277404969287e
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 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 435e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 445e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 455e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 59360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7668a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7768a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 78d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 899cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand> LegalizedNodes; 903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 9203c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9303c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 949cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand> PromotedNodes; 9503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 98c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 999cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 1003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 103c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 104c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 105c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 108c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 110c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1118afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1168afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11703c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 1186b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second; 11903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 12069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 12203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1238afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1251002c0203450620594a85454c6a095ca94b87cb2Dan Gohman explicit SelectionDAGLegalize(SelectionDAG &DAG); 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 13083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands LegalizeAction getTypeAction(MVT VT) const { 13168a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 13683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands bool isTypeLegal(MVT VT) const { 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 142456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 151c7029805ef35ce9805931067b841e6af11db382eChris Lattner 152826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 156826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 1576867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 1586867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// PerformInsertVectorEltInMemory - Some target cannot handle a variable 1596867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 1606867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// is necessary to spill the vector being inserted into to memory, perform 1616867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// the insert there, and then read the result back. 1626867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand PerformInsertVectorEltInMemory(SDOperand Vec, SDOperand Val, 1636867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Idx); 164826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 17003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 172c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 176c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 177c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 178c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 179c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 182c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 183c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 18589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 18689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 188c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 19883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *isShuffleLegal(MVT VT, SDOperand Mask) const; 1994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 200c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 20100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 2026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 203750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 204750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 205460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands SDOperand ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, bool isSigned, 20677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand ExpandIntToFP(bool isSigned, MVT DestTy, SDOperand Source); 208cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 20983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand EmitStackConvert(SDOperand SrcOp, MVT SlotVT, MVT DestVT); 210ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 21283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand ExpandLegalINT_TO_FP(bool isSigned, SDOperand LegalOp, MVT DestVT); 21383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT DestVT, bool isSigned); 21483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT DestVT, bool isSigned); 21500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 218e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 219e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2215b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 222b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2244aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 23483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan SandsSDNode *SelectionDAGLegalize::isShuffleLegal(MVT VT, SDOperand Mask) const { 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 24383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 24783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NVT.getVectorNumElements() / VT.getVectorNumElements(); 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 251bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 263bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2729c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2749c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2756a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 279e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 288e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 298e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 311dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein Worklist.push_back(UI->getUser()); 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 3153461cc9e9842c7bce46b9d6e114ff8e44d8ba7b9Dan Gohman Order.size() == DAG.allnodes_size() && 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3191618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 324ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 325ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 32832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 32932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3300ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 331e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 332ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 333c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 334c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 33932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34371c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 344c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 348190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 383dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein SDNode *User = UI->getUser(); 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 406c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 407c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 414c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 437c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 439c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 440c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44580edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 450c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 451c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 45283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 4537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 454c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 457c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 45883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!VT.isVector()) { 4597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 461c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46209ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46309ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 464c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 46583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.getVectorNumElements() == 1) { 4667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 469c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 474c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4799f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4809f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 482279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 483004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 484004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 488aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // double. This shrinks FP constants and canonicalizes them for targets where 489aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // an FP extending load is the same cost as a normal load (such as on the x87 490aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // fp stack or PPC FP unit). 49183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = CFP->getValueType(0); 49202a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner ConstantFP *LLVMC = ConstantFP::get(CFP->getValueAPF()); 4939f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4966cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt(), 497ef12057737229452c17983faa20857dba441ef05Evan Cheng (VT == MVT::f64) ? MVT::i64 : MVT::i32); 498279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 499279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 50083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OrigVT = VT; 50183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SVT = VT; 502ef12057737229452c17983faa20857dba441ef05Evan Cheng while (SVT != MVT::f32) { 50383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SVT = (MVT::SimpleValueType)(SVT.getSimpleVT() - 1); 504ef12057737229452c17983faa20857dba441ef05Evan Cheng if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && 505ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 506ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 5076fd599fa6916bd9438dbea7994cf2437bdf4ab8cEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, SVT) && 508aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner TLI.ShouldShrinkFPConstant(OrigVT)) { 50983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *SType = SVT.getTypeForMVT(); 510ef12057737229452c17983faa20857dba441ef05Evan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 511ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 512ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 513ef12057737229452c17983faa20857dba441ef05Evan Cheng } 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 517ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 518ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), 5193069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 520ef12057737229452c17983faa20857dba441ef05Evan Cheng 0, VT); 521ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, 522ef12057737229452c17983faa20857dba441ef05Evan Cheng PseudoSourceValue::getConstantPool(), 0); 523004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 524004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 526912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 527912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 528912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 52983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan SandsSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT NVT, 530912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 53183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 53283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(1).getValueType(); 5337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 53583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 536068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 537912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 538068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 539912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 540912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 541068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 542912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 543068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 544912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 54583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int SizeDiff = SrcNVT.getSizeInBits() - NVT.getSizeInBits(); 546912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 547912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 548912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 549912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 550c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner } else if (SizeDiff < 0) { 551c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner SignBit = DAG.getNode(ISD::ZERO_EXTEND, NVT, SignBit); 552c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner SignBit = DAG.getNode(ISD::SHL, NVT, SignBit, 553c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner DAG.getConstant(-SizeDiff, TLI.getShiftAmountTy())); 554c563e1d8fe2e0e9bb47e99ec55c277404969287eChris Lattner } 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 557068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 558068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 559068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 560068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 561912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 562068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 563068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 564068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 565912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 566912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 567912095becac923ff614d7b07728eb345ada67765Evan Cheng} 568912095becac923ff614d7b07728eb345ada67765Evan Cheng 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 570f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 571f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 572f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 573f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 574f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 575f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 57683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Val.getValueType(); 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 57983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getMemoryVT().isFloatingPoint() || 58083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ST->getMemoryVT().isVector()) { 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 58383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT intVT; 58483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.is128BitVector() || VT == MVT::ppcf128 || VT == MVT::f128) 5858155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 58683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (VT.is64BitVector() || VT==MVT::f64) 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 588907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 589907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 590907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 591cd9f1747ab72f9863924fbdf43493d9fa6256719Dale Johannesen assert(0 && "Unaligned store of unsupported type"); 592907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 593907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 594907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 595907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 596907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 59783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(ST->getMemoryVT().isInteger() && 59883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands !ST->getMemoryVT().isVector() && 599907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 60183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewStoredVT = 60283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands (MVT::SimpleValueType)(ST->getMemoryVT().getSimpleVT() - 1); 60383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int NumBits = NewStoredVT.getSizeInBits(); 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 618dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 621f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 622f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 623f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 624f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 628f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 629f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 630f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 631f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 632f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 63383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LD->getValueType(0); 63483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT LoadedVT = LD->getMemoryVT(); 63583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() || VT.isVector()) { 636907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 6378155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // then bitconvert to floating point or vector. 63883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT intVT; 63983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LoadedVT.is128BitVector() || 6403c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen LoadedVT == MVT::ppcf128 || LoadedVT == MVT::f128) 6418155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 64283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (LoadedVT.is64BitVector() || LoadedVT == MVT::f64) 643907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 644e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 645907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 646907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 6478155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(0 && "Unaligned load of unsupported type"); 648907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 649907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 650907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 651907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 652907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 65383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() && LoadedVT != VT) 654907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 655907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 656907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 6574bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands return DAG.getMergeValues(Ops, 2); 658907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 65983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(LoadedVT.isInteger() && !LoadedVT.isVector() && 660e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 661e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 6628155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // Compute the new VT that is half the size of the old one. This is an 6638155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // integer MVT. 66483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumBits = LoadedVT.getSizeInBits(); 66583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewLoadedVT; 66683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewLoadedVT = MVT::getIntegerVT(NumBits/2); 667e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 668e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 669e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 670e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 686dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 687f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 690f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 691f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 692f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 693f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 694dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 695f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 696f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 697f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 698f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 699f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 700f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 701f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 702f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 703f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 704f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 705f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 7064bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands return DAG.getMergeValues(Ops, 2); 707f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 708912095becac923ff614d7b07728eb345ada67765Evan Cheng 709826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 713826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 71483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 717826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 71983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NE = VT.getVectorNumElements(); 72083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 72783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OperandVT = Operand.getValueType(); 72883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (OperandVT.isVector()) { 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 73083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OperandEltVT = OperandVT.getVectorElementType(); 731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 733826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 734826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 735826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 736826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 737826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 738826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 739826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 740826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 741826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 742826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 743826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 744826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 745826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 746826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 747007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands/// GetFPLibCall - Return the right libcall for the given floating point type. 74883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT VT, 749007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F32, 750007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F64, 751007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F80, 752007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_PPCF128) { 753007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands return 754007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f32 ? Call_F32 : 755007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f64 ? Call_F64 : 756007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f80 ? Call_F80 : 757007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::ppcf128 ? Call_PPCF128 : 758007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::UNKNOWN_LIBCALL; 759007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands} 760007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands 7616867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// PerformInsertVectorEltInMemory - Some target cannot handle a variable 7626867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 7636867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// is necessary to spill the vector being inserted into to memory, perform 7646867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// the insert there, and then read the result back. 7656867991d541d08ca95d86841eca5f7c1d5096864Nate BegemanSDOperand SelectionDAGLegalize:: 7666867991d541d08ca95d86841eca5f7c1d5096864Nate BegemanPerformInsertVectorEltInMemory(SDOperand Vec, SDOperand Val, SDOperand Idx) { 7676867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp1 = Vec; 7686867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp2 = Val; 7696867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp3 = Idx; 7706867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7716867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // If the target doesn't support this, we have to spill the input vector 7726867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // to a temporary stack slot, update the element, then reload it. This is 7736867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // badness. We could also load the value into a vector register (either 7746867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // with a "move to register" or "extload into register" instruction, then 7756867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // permute it into place, if the idx is a constant and if the idx is 7766867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // supported by the target. 77783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp1.getValueType(); 77883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 77983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IdxVT = Tmp3.getValueType(); 78083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 7816867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand StackPtr = DAG.CreateStackTemporary(VT); 7826867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7836867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr.Val); 7846867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman int SPFI = StackPtrFI->getIndex(); 7856867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7866867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the vector. 7876867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, 7886867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman PseudoSourceValue::getFixedStack(), 7896867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SPFI); 7906867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7916867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Truncate or zero extend offset to target pointer type. 7928e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands unsigned CastOpc = IdxVT.bitsGT(PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 7936867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 7946867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Add the offset to the index. 79583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = EltVT.getSizeInBits()/8; 7966867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 7976867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 7986867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the scalar value. 7996867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, 8006867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman PseudoSourceValue::getFixedStack(), SPFI, EltVT); 8016867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Load the updated vector. 8026867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman return DAG.getLoad(VT, Ch, StackPtr, PseudoSourceValue::getFixedStack(),SPFI); 8036867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman} 8046867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 805a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 806a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 807a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 808a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 8093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 81009ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 81109ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 81209ec1b058331aadb29a348091611d23892b5c492Chris Lattner 813c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 814e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 81545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 816e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 8173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 818e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 81945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 82045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 821c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 822c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 8233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 824c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 82503c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 8263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 82945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 83045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 8319cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 832e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 8333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 8353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 837456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 8383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 839948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 840948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 841948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 842948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 843948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 84437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 845948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 8463181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 847948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 848948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 849b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 850948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 851948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 852948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 85369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case ISD::MEMOPERAND: 854948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 855276dcbdc8db6614cfd5004dc7dc35e437ddf9c58Duncan Sands case ISD::ARG_FLAGS: 856948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 857a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 858948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 859948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 861d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 862d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 863d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 864f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 865c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 866d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 867c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 868f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 869d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 870d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 871d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 872d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 873d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 874d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 875e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 87639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 877e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8800d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 882b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 88303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 88437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 88537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8860c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8870c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 888948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 889948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 890948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 891948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8920c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8930c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8940c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 896bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 897bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 898bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 899bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 900bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 901bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 902bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 903bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 904bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 905bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 906055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 90783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 908066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 909066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 910066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 911066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 912066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 913066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 914066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 915066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 916066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 917066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 918055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 919066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 9202bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 9212bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 92283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9232bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9242bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 9252bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 9268782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 927b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 9282bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9292bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9302bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 9312bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9322bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 9332bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 934eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 935eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 9364bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands Result = DAG.getMergeValues(Ops, 2); 9378782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9388782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9398782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 940eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 941b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 942b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 943b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 944b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 945b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 946b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 947b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 948b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 949b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 950b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 951b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 952b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9538782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9548782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9558782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 95683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9578782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9588782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9598782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9608782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 961b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9628782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9638782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9648782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9658782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9668782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 9678782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 968eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 969eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 9704bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands Result = DAG.getMergeValues(Ops, 2); 9712bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9722bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9732bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 974eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 975b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 976b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 977b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 978b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 979b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 980b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 981b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 982b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 983b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 984b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 985b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 986b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9876d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 98883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9892365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9902365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9912365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9922365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9932365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9942365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9952365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9962365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9972365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9982365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9992365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 10002365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 10016d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 10022365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 100308951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 100408951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 100508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1006c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 100708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 1008308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 1009c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 1010456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 1011456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 101269a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 101369a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 10147310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 1015f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 1016c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 10177310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1018f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 1019c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 1020f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1021c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 1022c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1023c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1024c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 10257310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 10267310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 102713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 102813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 102913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 103013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 103113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 1032fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 103383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 1034fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 1035ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 1036ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 103783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) 1038fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 103983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (VT.isFloatingPoint()) 104083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Result = DAG.getConstantFP(APFloat(APInt(VT.getSizeInBits(), 0)), 1041f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 1042fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 1043fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 1044fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1045ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 1046fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1047fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1048fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1049fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1050d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 105148b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 105248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 105348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1054f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1055d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1056d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1057f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 105810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 105910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 106048b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 106110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 106210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 106310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 106413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 106513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 106613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 106713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 106813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 106913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 107013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 107113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 107213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 107313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 107413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 107513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 107613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 1077d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 107836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 10797f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman case ISD::DBG_STOPPOINT: 10807f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman assert(Node->getNumOperands() == 1 && "Invalid DBG_STOPPOINT node!"); 108136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 108236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 10837f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman switch (TLI.getOperationAction(ISD::DBG_STOPPOINT, MVT::Other)) { 108436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 108536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1086f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 108744c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1088abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10894406604047423576e36657c7ede266ca42e79642Dan Gohman bool useLABEL = TLI.isOperationLegal(ISD::DBG_LABEL, MVT::Other); 1090abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10917f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman const DbgStopPointSDNode *DSP = cast<DbgStopPointSDNode>(Node); 109244c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 10937f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman const CompileUnitDesc *CompileUnit = DSP->getCompileUnit(); 10947f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman unsigned SrcFile = MMI->RecordSource(CompileUnit); 1095abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10967f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman unsigned Line = DSP->getLine(); 10977f460203b0c5350e9b2c592f438e40f7a7de6e45Dan Gohman unsigned Col = DSP->getColumn(); 1098abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1099abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 110071e8685633e7938ee752004cceedccbd0d850527Evan Cheng SDOperand Ops[] = { Tmp1, DAG.getConstant(Line, MVT::i32), 110171e8685633e7938ee752004cceedccbd0d850527Evan Cheng DAG.getConstant(Col, MVT::i32), 110271e8685633e7938ee752004cceedccbd0d850527Evan Cheng DAG.getConstant(SrcFile, MVT::i32) }; 110371e8685633e7938ee752004cceedccbd0d850527Evan Cheng Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops, 4); 1104abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1105a647c92ec2b3c91e1e6de25cc5c7860912c7626bEvan Cheng unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); 11064406604047423576e36657c7ede266ca42e79642Dan Gohman Result = DAG.getLabel(ISD::DBG_LABEL, Tmp1, ID); 1107abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1108e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1109e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1110e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 111136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1112e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 111371e8685633e7938ee752004cceedccbd0d850527Evan Cheng case TargetLowering::Legal: { 111471e8685633e7938ee752004cceedccbd0d850527Evan Cheng LegalizeAction Action = getTypeAction(Node->getOperand(1).getValueType()); 111571e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal && Tmp1 == Node->getOperand(0)) 111671e8685633e7938ee752004cceedccbd0d850527Evan Cheng break; 111771e8685633e7938ee752004cceedccbd0d850527Evan Cheng 111871e8685633e7938ee752004cceedccbd0d850527Evan Cheng SmallVector<SDOperand, 8> Ops; 111971e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Tmp1); 112071e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal) { 112171e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(1)); // line # must be legal. 112271e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(2)); // col # must be legal. 112371e8685633e7938ee752004cceedccbd0d850527Evan Cheng } else { 112471e8685633e7938ee752004cceedccbd0d850527Evan Cheng // Otherwise promote them. 112571e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(PromoteOp(Node->getOperand(1))); 112671e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(PromoteOp(Node->getOperand(2))); 112736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 112871e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(3)); // filename must be legal. 112971e8685633e7938ee752004cceedccbd0d850527Evan Cheng Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 113071e8685633e7938ee752004cceedccbd0d850527Evan Cheng Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 113136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 113236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 113371e8685633e7938ee752004cceedccbd0d850527Evan Cheng } 113436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1135a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1136a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case ISD::DECLARE: 1137a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); 1138a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { 1139a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng default: assert(0 && "This action is not supported yet!"); 1140a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case TargetLowering::Legal: 1141a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1142a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 1143a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. 1144a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1145a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1146e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner case TargetLowering::Expand: 1147e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 1148e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner break; 1149a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng } 1150a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1151f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1152f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1153abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1154f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1155f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 115671e8685633e7938ee752004cceedccbd0d850527Evan Cheng case TargetLowering::Legal: { 115771e8685633e7938ee752004cceedccbd0d850527Evan Cheng LegalizeAction Action = getTypeAction(Node->getOperand(1).getValueType()); 1158abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 115971e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal && Tmp1 == Node->getOperand(0)) 116071e8685633e7938ee752004cceedccbd0d850527Evan Cheng break; 116171e8685633e7938ee752004cceedccbd0d850527Evan Cheng if (Action == Legal) { 116271e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp2 = Node->getOperand(1); 116371e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp3 = Node->getOperand(2); 116471e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp4 = Node->getOperand(3); 116571e8685633e7938ee752004cceedccbd0d850527Evan Cheng } else { 116671e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 116771e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 116871e8685633e7938ee752004cceedccbd0d850527Evan Cheng Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 116971e8685633e7938ee752004cceedccbd0d850527Evan Cheng } 1170c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1171abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1172abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 117371e8685633e7938ee752004cceedccbd0d850527Evan Cheng } 1174abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1175abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11764406604047423576e36657c7ede266ca42e79642Dan Gohman case ISD::DBG_LABEL: 11774406604047423576e36657c7ede266ca42e79642Dan Gohman case ISD::EH_LABEL: 11784406604047423576e36657c7ede266ca42e79642Dan Gohman assert(Node->getNumOperands() == 1 && "Invalid LABEL node!"); 11794406604047423576e36657c7ede266ca42e79642Dan Gohman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 1180abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1181abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1182abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11834406604047423576e36657c7ede266ca42e79642Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1); 1184f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1185a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1186a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1187a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1188f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1189551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 119036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 119127b7db549e4c5bff4579d209304de5628513edebEvan Cheng case ISD::PREFETCH: 119227b7db549e4c5bff4579d209304de5628513edebEvan Cheng assert(Node->getNumOperands() == 4 && "Invalid Prefetch node!"); 119327b7db549e4c5bff4579d209304de5628513edebEvan Cheng switch (TLI.getOperationAction(ISD::PREFETCH, MVT::Other)) { 119427b7db549e4c5bff4579d209304de5628513edebEvan Cheng default: assert(0 && "This action is not supported yet!"); 119527b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Legal: 119627b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 119727b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 119827b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the rw specifier. 119927b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize locality specifier. 120027b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 120127b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 120227b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Expand: 120327b7db549e4c5bff4579d209304de5628513edebEvan Cheng // It's a noop. 120427b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = LegalizeOp(Node->getOperand(0)); 120527b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 120627b7db549e4c5bff4579d209304de5628513edebEvan Cheng } 120727b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 120827b7db549e4c5bff4579d209304de5628513edebEvan Cheng 120922c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth case ISD::MEMBARRIER: { 121022c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); 1211d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { 1212d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1213d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Legal: { 1214d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth SDOperand Ops[6]; 1215d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1216e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands for (int x = 1; x < 6; ++x) { 1217e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = Node->getOperand(x); 1218e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands if (!isTypeLegal(Ops[x].getValueType())) 1219e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = PromoteOp(Ops[x]); 1220e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands } 1221d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); 1222d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1223d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 1224d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Expand: 1225d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth //There is no libgcc call for this op 1226d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = Node->getOperand(0); // Noop 1227d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1228d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 122922c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth break; 123022c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth } 123122c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth 123228873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_CMP_SWAP: { 123363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 4; 123463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 123563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang SDOperand Ops[4]; 123663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 123763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Ops[x] = LegalizeOp(Node->getOperand(x)); 123863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 123963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang 124063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 124163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang default: assert(0 && "This action is not supported yet!"); 124263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Custom: 124363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = TLI.LowerOperation(Result, DAG); 124463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 124563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Legal: 124663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 124763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang } 124863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 124963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 125063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang return Result.getValue(Op.ResNo); 1251126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 125228873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_ADD: 125328873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_SUB: 125463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_AND: 125563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_OR: 125663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_XOR: 1257507a58ac9b20ddcea2e56a014be26b8f8cc0ecb8Andrew Lenharth case ISD::ATOMIC_LOAD_NAND: 125863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MIN: 125963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MAX: 126063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMIN: 126163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMAX: 1262ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 126363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 3; 126463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 126563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang SDOperand Ops[3]; 126663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 126726ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 126863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 1269126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 127026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1271ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 127226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Custom: 127326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = TLI.LowerOperation(Result, DAG); 127426ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth break; 127563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Expand: 1276126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands Result = SDOperand(TLI.ReplaceNodeResults(Op.Val, DAG),0); 127763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 127826ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Legal: 1279ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1280ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 128126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 128226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 128326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth return Result.getValue(Op.ResNo); 1284126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 1285c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1286c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1287c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1288c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1289c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 12903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 12913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 12923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1293c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1294c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1295c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1296c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1297c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1299c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 13003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 13013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 13023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 13033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 13043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 13053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 13063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 13073181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 13083181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1309e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1310e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 13113181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 13123181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13133181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 13143181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 13153181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 13163181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 13173181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1318e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1319e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1320e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1321e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1322e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1323e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1324e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1325e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1326e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1327e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1328e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1329e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1330e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1331279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 13323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1333e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 13343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1336040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1337040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1338c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1339c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1340c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1341c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1342c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1343c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1344c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1345c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1346040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1347f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1348040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1349c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1350c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1351f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1352a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1353a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1354fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1355fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1356f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1357fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1358b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1359b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 13600ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // A call within a calling sequence must be legalized to something 13610ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // other than the normal CALLSEQ_END. Violating this gets Legalize 13620ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // into an infinite loop. 13630ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen assert ((!IsLegalizingCall || 13640ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Node->getOpcode() != ISD::CALL || 13650ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Tmp3.Val->getOpcode() != ISD::CALLSEQ_END) && 13660ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen "Nested CALLSEQ_START..CALLSEQ_END not supported."); 13670f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 13680f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 13690f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 13700f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 13710f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 13720f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 13730f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1374b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1375e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1376f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1377e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1378b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 13790f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 13800f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1381b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1382e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1383e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1384e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1385e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1386e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1387557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1388557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1389557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1390557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1391557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1392557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1393557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1394557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1395557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1396557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1397557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1398557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1399557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1400557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1401557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1402557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1403557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1404b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1405b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 14062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 14072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 14082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 14102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 14112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1414ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1415ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1416b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 14172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 14202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 14212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 14220325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14230325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 14240325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 14250325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 14260325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 14270325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 14280325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 14290325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 14300325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 14312332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 14322332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 14332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 14342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 14352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 14362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 14372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 14392281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 14402281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 14412281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 14422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 14452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 14468d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 14478d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 14488d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 14490325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 14500325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 14510325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 145283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Op.getValueType().getVectorElementType()) { 14530325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 14540325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 14550325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 145683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElts = Tmp1.getValueType().getVectorNumElements(); 145783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskVT = 145883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntVectorWithNumElements(NumElts); 145983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskEltVT = ShufMaskVT.getVectorElementType(); 14600325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14610325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 14620325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 14630325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 14640325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SmallVector<SDOperand, 8> ShufOps; 14650325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 14660325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (i != InsertPos->getValue()) 14670325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 14680325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 14690325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 14700325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 14710325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 14720325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 14730325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14740325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 14750325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 14760325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 14770325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 14788d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14798d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14806867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Result = PerformInsertVectorEltInMemory(Tmp1, Tmp2, Tmp3); 14812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1485ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1491ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1492ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1493ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1494ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1495ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1496ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1497ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14984d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14994d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 15004d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 15014d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 15024d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 15034d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 15044d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 15054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 15064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1507ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1508ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1509ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 151087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 151187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 151287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 151387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 151487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 151587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 15164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 15174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 15184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 15194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 15204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 15214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 152318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 152418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 152518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 152618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 152718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 152818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 152918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 153083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 153183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 153283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 153318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 153418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1535bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 153618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 153718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 153818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 153918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 154018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 154118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 154218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 154318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 154418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 154518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 154618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 154718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 154818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 154918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 155018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1551bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 15524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 155318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 15544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 15554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 155683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 155783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 15584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 15604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 15614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 15624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 15644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 15654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 15664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 15674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 15684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 157087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 157187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1572384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1573384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1575384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1576384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1578384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1579384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 159300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1595c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1596c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1597c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 16006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 16016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 16046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1605c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1606b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1607b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1608b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 16096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 16116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1612f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 16136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1614f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 16156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 16184b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 16194b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 16204b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 16214b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 16236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 16246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 16256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 16266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 16276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 16286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 16296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 16306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 16326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 16336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 16346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 16356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 163616cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 16376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 16386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 16396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 16406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 16419cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 16426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 16436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 16446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 16456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 16486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 16493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 165070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 165170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 165270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 165370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1654f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 165570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1656f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 165770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 165870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 165970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 166070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 166170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1662f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 166370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 166470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1665f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 166670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 16676a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16684b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16714b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16724b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 16734b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16744b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 16754b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 16764b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1677a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 167883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1679fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1680fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1681fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1682c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1683fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1684c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16855f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 168661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1687a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1688903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1689903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1690903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1691903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1692903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 16930f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16940f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16950f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 16960f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 16970f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 16980f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1699903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 170061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 170161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 170261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 170361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 170461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 170561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 17063e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 17073e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 170861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 17090f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 17100f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 17110f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 17120f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 17130f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 17140f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 17150f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 17160f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1718c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1719903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1720903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1721903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 17225f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 17235f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1724c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1725c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1726a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1727903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1728a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1729903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1730a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1731903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1732903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1733c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1734c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1735903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1736a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 173725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1738f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 173925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 174025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 174125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 174225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 174325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 174425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 174525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 174625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 174725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 174825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 174925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 175025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 175125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 175225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 175325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 175425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 175525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 175625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 175725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 175825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 175925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 176025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 176125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 176225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 176325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1764ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 176525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1766f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1767ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1768ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1769c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1770ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1771ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 177225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1773c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1774c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1780c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1781c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 178237efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 178337efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 178437efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 178537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 178637efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 178737efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 178837efe6764568a3829fee26aba532283131d1a104Nate Begeman 178937efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 179037efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 179137efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 179237efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 179337efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 179437efe6764568a3829fee26aba532283131d1a104Nate Begeman } 179537efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 179637efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 18003d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 18023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 18033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 18043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 18053d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18063d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 18073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 18083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 18093d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 18103d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 18113d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 18123d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 18133d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 18143d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 18153d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 18163d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 18173d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 18183d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 181983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PTy = TLI.getPointerTy(); 1820acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1821acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 18223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 18233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1824acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1825acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1826acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1827acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 182869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 18293069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 183069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 18313069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1832acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1833acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1834cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1835acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 18363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 18373d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1838cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1839cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1840cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1841cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1842cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 18433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1844cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 18453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1848c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1849c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 18546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 185547e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 185647e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 185747e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 185847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 185947e9223e06390897c3834f8c527001df392570ffChris Lattner break; 18602e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 186147e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1862f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1863f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1864f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 18652e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1866ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 18672e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1868f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 186947e9223e06390897c3834f8c527001df392570ffChris Lattner break; 187047e9223e06390897c3834f8c527001df392570ffChris Lattner } 18712e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1873456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1874c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18777cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1879456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1880456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1881456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18837cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18847cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18857cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18867cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18877cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18887cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18897cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18907cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18917cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18927cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18937cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18947cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18957cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18967cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18977cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18987cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18997cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 19007cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 19016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 19026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 19036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1904750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1905750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1906750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1907181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1908750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1909722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1910722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1911750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1912750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1913750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1914750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1915750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1916750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1917750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1918750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1919750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1920750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1922181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1923181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1926456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1927456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1928181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 19297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1930c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1931f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1932466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1933466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1934466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 19352d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1936466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1937466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 193883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1939466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1940466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1941466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1942456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1944466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1945f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1946f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1947f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1948f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1949f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 195083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 1951f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1952f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1953f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1954f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1955f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1956907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1957907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1958f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1959f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1960f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1961466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1962466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1964466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1965466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1966466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1967466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1968466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1969466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 197083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Cannot promote this load!"); 1971466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 197283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1973466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1974466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1975d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1976d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1977466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 197841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1979466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1980f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1981466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1982466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1983466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1984466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1985466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1986466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1987466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 198883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = LD->getMemoryVT(); 198983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcWidth = SrcVT.getSizeInBits(); 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 199483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SrcWidth != SrcVT.getStoreSizeInBits() && 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 2005f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 200683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NewWidth = SrcVT.getStoreSizeInBits(); 200783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(NewWidth); 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Ch; 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 2014f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2016f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 2024f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2025f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2026f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 2027f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 2034f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 203583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SrcVT.isExtended() && !SrcVT.isVector() && 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 2037f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 2042f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 204383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 204483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Lo, Hi, Ch; 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2056f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2061f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2068f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2070f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2071f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2074f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2075f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2077f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2078f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2081f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2090f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2091f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2096f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2099f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2100f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2101f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2103f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2104f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2105f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2106f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2107f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2108f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2109f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2110f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2111f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2112f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2113f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2114f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2115f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2116f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2117f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2118f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2119f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2120f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 2121f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2122f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2123f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2124f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2125f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2126f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2127f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2128f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 212983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 2130f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2131f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 2132f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2133f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2134f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2135f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2136f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2137f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2138f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2139f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2140f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2141f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2142f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2143f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2144f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2145f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2146f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2147f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2148f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2149f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2150f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2151f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2152f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2153f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2154f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2155f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2156f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2157f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2158f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2159f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand ValRes; 2160f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2161f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2162f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2163f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2164f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2165f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2166f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2167466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2168466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21699d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2170f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2171466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2172466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2173466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2174466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2175466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 217601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 217701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21785dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 217983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OpTy = Node->getOperand(0).getValueType(); 21805dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2181c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21825dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 21835dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 21845dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21855dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 218683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OpTy.getSizeInBits()/2, 21875dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21885dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21895dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21905dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21915dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21925dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21935dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21945dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21955dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21965dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 21985dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 21995dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 22005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 22015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 22025dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 22035dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 22043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22055dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 22063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 22073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 22083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2209edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2210c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2211d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 22127310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2213d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2214f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2215c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 22167310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2217f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2218c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2219f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2220c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2221c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2222c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2223c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 22247310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 22257310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 22267310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 22277310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2228c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 22297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2230c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 22317310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 22323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 22343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 22353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 22366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 22376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 22386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 22396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 22406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2241f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 22438e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 224498f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 22458e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2246f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 22473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22488e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 22493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2250f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 225183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!Tmp2.getValueType().isVector()) { 2252f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2253f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2254edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2255edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 22560753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2257edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2258edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 225913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 226013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 226113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 226213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2263f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2264f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2265f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2266e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 226783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 226883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 2269f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2271ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 227283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 22737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2274ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22768e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2277f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2278f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22818e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2282b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2283b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2284b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2285b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2286f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2287f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2288f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2289f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2290b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2291b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2292f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2293f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2294fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2295f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2296f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2297f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2298edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 23008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 23018e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2302c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 23038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2307c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 23083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2310f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 23113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 23128e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 23133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 23143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 23154e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 23168e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 23173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 23193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 232083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(!Node->getOperand(i).getValueType().isExtended() && 2321b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 23223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 23233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 23248e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 232513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 232613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 232713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 232813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2329edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 23303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 23328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 23333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2334c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2336f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2337c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2338f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2339f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 23403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 234317c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 23446862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 23456862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 23466862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 23476862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 23486862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 23496862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 23506862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 23516862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 23526862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 235317c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 23543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2355f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 23568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 23578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 23588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2359d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2360d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2361d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 23628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2364d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2365d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2366d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2367d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2368d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2369d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23709e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23712b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23723cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23733cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23746cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman Tmp3 = DAG.getConstant(CFP->getValueAPF(). 23756cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman convertToAPInt().zextOrTrunc(32), 23763f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23779e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23789e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23799e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23809e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23813cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23823cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23833cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 23846cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman zextOrTrunc(64), MVT::i64); 23853cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23863cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23873cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 2388d4b9c17fb705c2f58ceef4f37d789ddb56783584Duncan Sands } else if (getTypeAction(MVT::i32) == Legal && !ST->isVolatile()) { 23893cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23903cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23913cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23926cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman const APInt &IntVal =CFP->getValueAPF().convertToAPInt(); 23936cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman SDOperand Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); 23946cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman SDOperand Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); 23950753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23963cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23973cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23983cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23993cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 24013cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2402dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 24033cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 24043cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24053cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 24063cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2407d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2408d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2409d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2410b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 24118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 24128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 24132efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 24148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 24158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 241683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp3.getValueType(); 24178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 24188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2419f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2420f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2421f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2422f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2423f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 242483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 2425f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2426f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2427f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2428f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2429f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 24308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 24318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 24328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 24338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 243583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Unknown legal promote case!"); 24368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 24378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 24388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2439d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2440d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 24418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24432efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2444f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 24458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 24468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 24478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 24488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2449b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2450d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 24518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 245203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 24538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 24548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 24558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2456c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 24588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 24598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 246083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getValue().getValueType().isVector()) { 24618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2462e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 246383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT InVT = InVal->getValueType(InIx); 246483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVT.getVectorNumElements(); 246583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVT.getVectorElementType(); 24668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2468ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 246983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 24707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2471ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 247221be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2474d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 247921be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2481d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 248721be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 248883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands IncrementSize = Lo.Val->getValueType(0).getVectorNumElements() * 248983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands EVT.getSizeInBits()/8; 24908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2491c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 249221be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 249383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands IncrementSize = Hi.Val ? Hi.getValueType().getSizeInBits()/8 : 0; 24948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24950753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 24968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2497c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2498c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2500d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 25017b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 25027b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 25037b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 25047b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 25057b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 25067b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 25077b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 25088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25090bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 25108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 25118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2512d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2513dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 25148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2515d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 25168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 25188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2520ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2521ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2522ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2523ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2524ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2525ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2526ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2527ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2528ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2529ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2530ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2531ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2532ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2533ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2534ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 25357e857201f387d004571e6058e2ea709163500f38Duncan Sands 253683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT StVT = ST->getMemoryVT(); 253783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned StWidth = StVT.getSizeInBits(); 25387e857201f387d004571e6058e2ea709163500f38Duncan Sands 253983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (StWidth != StVT.getStoreSizeInBits()) { 25407e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 25427e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 254383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(StVT.getStoreSizeInBits()); 25447e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 25458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 25477e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 25487e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 254983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(StVT.isExtended() && !StVT.isVector() && 25507e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 25567e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 255783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 255883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 25597e857201f387d004571e6058e2ea709163500f38Duncan Sands SDOperand Lo, Hi; 25607e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 25617e857201f387d004571e6058e2ea709163500f38Duncan Sands 25627e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 25637e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 25647e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 25657e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25667e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 25677e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25687e857201f387d004571e6058e2ea709163500f38Duncan Sands 25697e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25707e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25717e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25727e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25737e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25747e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25757e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25767e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25777e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25787e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25797e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25807e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25817e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25827e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25837e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25847e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25857e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25867e857201f387d004571e6058e2ea709163500f38Duncan Sands 25877e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25887e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25897e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25907e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25917e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25927e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25937e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25947e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2595c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25967e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25977e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25987e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25997e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 26007e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 26017e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 26027e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 26037e857201f387d004571e6058e2ea709163500f38Duncan Sands 26047e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 26057e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 26067e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 26077e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 26087e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 26097e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 26107e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 261183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 26127e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 26137e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 26147e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 26157e857201f387d004571e6058e2ea709163500f38Duncan Sands } 26167e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 26177e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 26187e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 26197e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 26207e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 26217e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 26227e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 26237e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 26247e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 26257e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 26267e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 26288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 26293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 26303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2631f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 263295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 263395762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2634c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 263595762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2636140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2637140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2638c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2639c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2640c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2641456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2642140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2643140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2644456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2645456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2646c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2647c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2648c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2649c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2650140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2651456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2652140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26534f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 26544f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26554f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2656c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 26574f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2658c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 26594f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2660c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2661c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 26624f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2663456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2664140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2665456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2666456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2667456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2668c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2669c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2670c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2671456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2672140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2673140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2674140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2675c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2676140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2677140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2678140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2681456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2683140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2684140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26854f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26864f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26874f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26884f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26894f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26904f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26914f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2692140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2693140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2694140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2695140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 269651b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 269751b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2698c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2699f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2700f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2701f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 27026a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 27036a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 27046a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 27056a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2706f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2707f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 27086a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 27096a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2710f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2711f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 271249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 271349c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 271449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 27156a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 27166a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2718f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 27192ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 272047e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 272147e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 272247e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 272347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 272447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 27252e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 272647e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2727b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 27282e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2729ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 27302e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2731b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 273247e9223e06390897c3834f8c527001df392570ffChris Lattner break; 273347e9223e06390897c3834f8c527001df392570ffChris Lattner } 27342e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 27353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 27362ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 273755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2738c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2739456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2740b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 274155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2746456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2747456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 27489373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 27499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 27509373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 27519373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 27529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 27539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 27549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 27559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 27569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 27579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 275855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 275955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 276083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 276155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 276255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 276383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Tmp2.getValueType().isVector()) { 276441f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 276541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 276683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Tmp2.getValueType().isInteger()) { 2767456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2768456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 276955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2770456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2771456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 277255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 277355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 277455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 277555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 277655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 277755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27790bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27800bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27820bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 278355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 278455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 278555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 27939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 28129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 28139373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 28149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 28163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2819750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 28273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 28283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2829b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 283073e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2831456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2832456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2833456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2834456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 28362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2837456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 28382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 28392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2840456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2841b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2842ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2843ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2844ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2845ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 284683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = Node->getOperand(0).getValueType(); 284783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OldVT = NewInTy; OldVT = OldVT; 2848ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2849ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2850ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 285183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 2852ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 285383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() == OldVT.isInteger() && 2854ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 285583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isFloatingPoint() == OldVT.isFloatingPoint() && 2856ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2857ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2858ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 28591ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2860ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2861ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 286283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NewInTy.isInteger()) 2863ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2864ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2865ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2866ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2867ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2868c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2869c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2871433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28725e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2873ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2874b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2875b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2876b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 287783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 2878b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2879b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2881b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2882b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2884b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 2885b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2886b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2887b43e9c196542acc80c9e4643809661065710848fNate Begeman SDOperand CC = Node->getOperand(2); 2888b43e9c196542acc80c9e4643809661065710848fNate Begeman 2889b43e9c196542acc80c9e4643809661065710848fNate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, CC); 2890b43e9c196542acc80c9e4643809661065710848fNate Begeman 2891b43e9c196542acc80c9e4643809661065710848fNate Begeman // Everything is legal, see if we should expand this op or something. 2892b43e9c196542acc80c9e4643809661065710848fNate Begeman switch (TLI.getOperationAction(ISD::VSETCC, Tmp1.getValueType())) { 2893b43e9c196542acc80c9e4643809661065710848fNate Begeman default: assert(0 && "This action is not supported yet!"); 2894b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Legal: break; 2895b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Custom: 2896b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2897b43e9c196542acc80c9e4643809661065710848fNate Begeman if (Tmp1.Val) Result = Tmp1; 2898b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2899b43e9c196542acc80c9e4643809661065710848fNate Begeman } 2900b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2901b43e9c196542acc80c9e4643809661065710848fNate Begeman } 290252d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 29035b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 29045b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 29055b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2906f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 290784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 290884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 290984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 291084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 291184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2912c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2913f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 29142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 291505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 291605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 291705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2918456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2919456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2922456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 292305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 292505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 292605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 292712f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 292805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2929269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 293005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 293105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 293205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 293305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 293405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 29352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 29362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 29372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 29382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 29392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 294084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 29412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 29422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 29433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 29443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 29453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2946c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2947c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 29483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 29493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 29503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 29513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 29523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 295303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 295403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 295503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 295601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 295701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 295801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 295901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2960826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2962f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2963f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2964f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2965f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2966f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2967f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2968f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2969f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2970f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2971c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2972c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2973456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2974e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2975bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2976456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2977456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2978456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2979456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 298057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2981bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 298283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 2983525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2984525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2985525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2986525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2987525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2988525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2989525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2990525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2991525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2992525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2993525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2994525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2995525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2996525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2997525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2998525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2999525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3000525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 3001525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 3002525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 3003525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3004525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3005525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 3006525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 3007525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3008525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3009525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3010525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 3011525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 3012525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3013525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3014525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3015525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 3016525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 3017525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3018525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3019525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3020525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 3021525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3022525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3023525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3024525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3025525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 3026525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3027525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3028525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3029525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3030525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3031826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 3032826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3033826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 3034826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 3035826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 3036826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 3037826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 3038826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 303956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 3040826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 3041826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3042826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3043826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 3044007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 3045007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 3046826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3047826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 3048826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3049826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 3050826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 3051460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 305252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 305352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 305452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 305583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Node->getValueType(0).isVector() && 3056bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3057bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3058826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3059bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3060bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3061cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3062cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3063cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3064cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3065cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3066cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 306783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 306883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 306983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(OVT.isVector() && "Cannot promote this BinOp!"); 3070cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3071cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3072cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3073cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3074cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3075cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3076cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3077cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3078cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3079cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3080e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 30813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3082a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3083e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3084e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3085e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3086e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3087e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3088e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3089a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3090e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3091525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3092525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3093525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3094525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3095e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3096e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3097a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3098a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3099a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3100a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3101a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3102a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3103a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3104a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3105a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3106a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3107a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3108a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3109a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3110a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3111a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3112a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3113a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3114a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3115a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 31168f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3117a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3118912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3119636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3120636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3121636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3122636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3123636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3124912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3125636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 31268f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 312783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IVT = 31288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 31298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 31305b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SignBit = DAG.getSetCC(TLI.getSetCCResultType(SignBit), 31318f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 31328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 31338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 31348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 31358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 31368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 31378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 31388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 31398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 31408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 31418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 31428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 31438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 31448f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 314583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 3146912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3147912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3148912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3149912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3150a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3151a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3152912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3153a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3154a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3155551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3156551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3157551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3158551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3159551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3160551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3161551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3162551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3163551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3164551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3165edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3166551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3167551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3168551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3169551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3170551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3171551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3172551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3173551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3174551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3175551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3176551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3177551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3178419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 317983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PairTy = Node->getValueType(0); 3180419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3181419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3182419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3183419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3187419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3188419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3189419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3190419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3191419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3192419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3193419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3194419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 319583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(PairTy.getSizeInBits()/2, 3196419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3197456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3198419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3199419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3200419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3201419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3202419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3203c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3204c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 320501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3206c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3207c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3208456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3209c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3210456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3211456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 321457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3215c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3219456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 322057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3221525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 32226b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 322347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 322483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3225525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3226525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3227525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3228525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3229525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3230525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3231525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3232525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3233525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3234525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3235525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3236525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3237525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3238525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 323983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) { 3240525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 324152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 324252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 32436b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 324452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 324552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 324683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.isVector()) { 324780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 324852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3249525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 325052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 325156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 325256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 325352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 3254460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 325552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32560d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 325783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isFloatingPoint() && 32580d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 325983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 326080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 326180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 326280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3263007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3264007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 326580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 3266460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 326780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3268c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3269c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3270c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3271525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3272c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3273acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3274acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3275acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3276acc398c195a697795bff3245943d104eb19192b9Nate Begeman 327783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3278acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3279acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3280456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3281456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3282456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3283acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3284c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3285c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3286456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3287456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3288456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3289456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3290456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3291456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3292456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3293456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3294456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3295acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3296acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 329769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 329869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3299acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3300acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 330183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 3302acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3303acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 330469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3305acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3306466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3307456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3308acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3309acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3310acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3313acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3314acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3315456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3317acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3318acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3319acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3320acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3321acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3322acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3323acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3324acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3325acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3329acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3330c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3331c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3333456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3334456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3335456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3336acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3337acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3338acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3339acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 334069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 334169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 3342499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VS, 0); 3343499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VD, 0); 3344acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3345acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3346acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3347acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3348acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3349acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3350acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3351acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3352acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3353acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3356456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3357acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3358c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3363acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3364acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3365acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3366acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3367acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3368acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3369acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3370acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3371acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3372acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3373acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3374c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3375c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3376acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3377acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3378456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3379456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3380456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3382acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3383acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3384acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3385acc398c195a697795bff3245943d104eb19192b9Nate Begeman 338635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 338735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 338835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 338935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3390c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3391c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3392c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3393c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3394c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3395c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3396c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3397c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3398c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3399c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3400c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3401c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3402c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3403c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3404c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3405c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3406c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3407c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 340835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 340935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3410d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3411d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3412d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3414456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3416c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3418456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 341983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 342083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 342183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 3422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3425456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3426456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3427456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3428456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3430456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3431456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3432d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3433d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3434d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3435691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3436691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3437691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3438691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3439691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3440910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3441691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3442c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3443910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3444335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3445335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3446335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3447335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3448335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3449910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3450691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3451691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 345283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 345383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3454edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3455edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3456691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3457691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3458691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3459456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3460691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3461691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3462691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3463691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3464691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34655b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 346683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 34677cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 346800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 346983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OVT.getSizeInBits(), NVT), Tmp1); 3470691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3471691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3472456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 347300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 347483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 347583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands OVT.getSizeInBits(), NVT)); 3476691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3477691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3478691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3479691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3480691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3481456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3482691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3483691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3484691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 348500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 34862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 34872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 34882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3489da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3490da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3491da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 34922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 34932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3494456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3495456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 349659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 349759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 34982c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3499c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 350059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 350159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 350259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 350359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 35042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3508456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 35092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 35102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3512f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3513f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 35144af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 351583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 35164af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 35175b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 35185922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETUGT); 35194af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 35204af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3521f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3522f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3523f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3524f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3525f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 352683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3527826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3528826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 352983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3530826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3531826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3532826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3533826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 353456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3535f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 353656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3537007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3538007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 353956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 354056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3541007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3542007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 354356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 354456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3545007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3546007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 354756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3548f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3549f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35502ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 3551460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 3552f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3553f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35572c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35586ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 355983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3560826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3561826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 356283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3563826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3564826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3565826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3566826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3567826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3568007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3569007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 35706ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 3571460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 35726ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 35736ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 357435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 357567993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 35761401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35771401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 357883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Op.getOperand(0).getValueType().isVector()) { 35797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 35807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 35817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3582e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 358383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 358483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 35857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 35877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 358883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 35897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 359007a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 35917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 35937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 35957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 35967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 35987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 36007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 36017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 36027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 360367993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 360435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 360535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 360635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 360735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 36081401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36091401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 361035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 361135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 361235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3613c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 361435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 361535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 361635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 361735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3618d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 36192c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3620fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3621fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3622fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3623fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3624fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3625d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3626fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3627fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3628456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3631456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3632456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3633c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3636456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3638456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3639fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 36406269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 36416269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 36426269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3643456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3644fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3645fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3646fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3647fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3648fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36495b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3650fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3651fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3652fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3653fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3654fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3655fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3656c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3657fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3658c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3659c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3660fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3661c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3662c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3663fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3664c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3665c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3666fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3667fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3668fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3669fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3670fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3671fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3672fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3673fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3674c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3675fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3676fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3677fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3678fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3679fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3680fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3681fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3682fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3683fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3684fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3685fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3686fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3687fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3688fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3689d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3690fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3691fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3692fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3693fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3694f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3695f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 36961618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 36971618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3698456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3699456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3700456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3702c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3704456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3707456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3708456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3709456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3710456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3711456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 37121618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3713d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3714d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 371583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getOperand(0).getValueType(); 371683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = Node->getValueType(0); 371773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 371883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero)); 371983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APInt x = APInt::getSignBit(NVT.getSizeInBits()); 3720c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 372173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 37225b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp3 = DAG.getSetCC(TLI.getSetCCResultType(Node->getOperand(0)), 3723d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3724d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3725d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 372601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3727d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3728d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3729c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman DAG.getConstant(x, NVT)); 3730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3731456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3732d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3733d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3734d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3735d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 37361618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3737fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 37386af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 373983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 374083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getOperand(0).getValueType(); 3741fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 37426eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 37430bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 37440bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 37450bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 37460bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 37470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 37480bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 37490bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3750fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3751fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3752fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3753fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3754fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3755fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3756fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3757fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3758fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3759fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3760fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3761fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3762fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3763fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3764fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37656eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37666eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3767a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman // Convert f32 / f64 to i32 / i64 / i128. 376856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 37696af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 377073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 3771a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i32) { 3772a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3773a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I32; 3774a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3775a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I32; 3776be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands else if (OVT == MVT::f80) 3777be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands LC = RTLIB::FPTOSINT_F80_I32; 3778be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands else if (OVT == MVT::ppcf128) 3779be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands LC = RTLIB::FPTOSINT_PPCF128_I32; 3780a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3781a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i32-to-fp conversion!"); 3782a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i64) { 3783a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3784a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I64; 3785a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3786a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I64; 3787a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3788a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I64; 3789a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3790a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I64; 3791a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3792a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i64-to-fp conversion!"); 3793a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 3794a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3795a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I128; 3796a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3797a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I128; 3798a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3799a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I128; 3800a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3801a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I128; 3802a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3803a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i128-to-fp conversion!"); 3804a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 3805a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpectd int-to-fp conversion!"); 380673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38076af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 380873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 380973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 3810a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i32) { 3811a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3812a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I32; 3813a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3814a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I32; 3815a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3816a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I32; 3817a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3818a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i32-to-fp conversion!"); 3819a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i64) { 3820a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3821a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I64; 3822a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3823a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I64; 3824a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3825a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I64; 3826a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3827a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I64; 3828a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3829a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i64-to-fp conversion!"); 3830a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 3831a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3832a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I128; 3833a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3834a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I128; 3835a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3836a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I128; 3837a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3838a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I128; 3839a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3840a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i128-to-fp conversion!"); 3841a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 3842a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpectd int-to-fp conversion!"); 384373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38446af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 384573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38466af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 38476af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 38486af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 3849460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 38506af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 38516af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3852fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3853c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3854c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3855c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3856fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3857fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3858fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3859d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3860f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 386183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 386283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 38630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 38670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3868f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3869f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3870f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3871f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3872f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3873f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3874f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3875f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3876f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3877f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3878f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3879f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3880f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 38825411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 388383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 388483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 38850bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38860bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3887713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen SDOperand Lo; 3888713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 38890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3890713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3891713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 38920bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 38935411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 38940bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 38970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3898849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3899f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3900f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3901f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3902f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 39030bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3904f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3905f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3906f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39070bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 39080bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3909f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3910f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3911f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 39120bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 391313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 39143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 39153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 39163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3917456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 39183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 39193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 392082747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Result = DAG.UpdateNodeOperands(Result, Tmp1); 39210123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 39220123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 392382747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 392482747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel if (Tmp1.Val) Result = Tmp1; 39250123b7dcfa9be97588926407163deb8d603487ceScott Michel } 39263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 392703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 392803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 392913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3930c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3931c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 393213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 39331713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 39341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 393513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 393623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 393723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 393803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 393903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 39401713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 394113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 39421713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 394315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 394415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 39451713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 394603c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 39473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39490f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 395023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 39510f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 395283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 395345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 395445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 395545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 395655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 395755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 395855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3959c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 396055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 396155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 396245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 396323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 396445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 396545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 396683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned BitsDiff = Node->getValueType(0).getSizeInBits() - 396783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ExtraVT.getSizeInBits(); 396827ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 396945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 397045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 397145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 397245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 397345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 39742d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 397545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 397645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 397745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 397845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 397945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3980a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3981a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 398245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 398345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 398445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 398555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 398645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 39870f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 398936397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 399036397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 399136397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 399236397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 399336397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 399436397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 399536397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 399636397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3997f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3998f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3999f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 4000f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 4001f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 4002f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 4003f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 4004f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 400536397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 40069c78a399076f8356a53ee67dca9c78e594e34967Dan Gohman case ISD::FLT_ROUNDS_: { 400783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4008917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 4009917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 4010917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 4011917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 4012917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 4013917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 4014917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 4015917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 4016917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 4017917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 4018917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 40199ab9ee8209c313713a54db2d9451751d8cfb9e2aDan Gohman break; 4020917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 402141bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 402283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 402366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 402466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 402541bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 402641bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 402741bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 402841bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 402966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 403066fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 403166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 403266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 403341bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 403466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 403541bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 403666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 403766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov std::pair<SDOperand,SDOperand> CallResult = 403800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 403900fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 4040034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 4041034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 404266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 404366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 404466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404541bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 404666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 4048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 40494ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 40504ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 40514ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 4052456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 4053456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 4054456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 40553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 405645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 405745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 405845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 40593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 40603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 40613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 40638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 40648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 40658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 406603c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 406783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 406883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 406903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 407003c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 40718e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(NVT.bitsGT(VT) && NVT.isInteger() == VT.isInteger() && 407203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 407303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 407403c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 407503c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 407603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 407703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 40789cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 40796fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 408045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 408103c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 4082d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 4083d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 408403c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 4085e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 408639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4087e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 408803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 408903c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 4090fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4091fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 4092fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 409303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 4094ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 4095ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 4096ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 4097ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 409803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 409903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 410003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 410103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 410203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 410303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4104ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 410582fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 41065b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel assert(isTypeLegal(TLI.getSetCCResultType(Node->getOperand(0))) 41075922f561c65968ef1865cc8434d191041e450602Nate Begeman && "SetCC type is not legal??"); 41085b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = DAG.getNode(ISD::SETCC, 41095922f561c65968ef1865cc8434d191041e450602Nate Begeman TLI.getSetCCResultType(Node->getOperand(0)), 41105922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(0), Node->getOperand(1), 41115922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(2)); 411282fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4113fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 411403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 411503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 411603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 411703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 41188e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(Result.getValueType().bitsGE(NVT) && 411903c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 41208e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Result.getValueType().bitsGT(NVT)) // Truncate to NVT instead of VT 412103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 412203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4123e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4124e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4125e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4126e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4127e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 412803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 412979e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 413079e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4131e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 413203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 413303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 41348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 41358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 413613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 41378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 41398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 41458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 41478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4148595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 414915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 415013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 415123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 415223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 41538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 415635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 41571401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 41581401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 415935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 416035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 416135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 41638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 41648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 41658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 41678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 41688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41690bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 41700bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 41710bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 41720bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 41730bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 41740bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 41750bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 41760bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 41770bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 41788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 41828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 41838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 418577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 41928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 419315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 419415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 41958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 419623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 419723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 419877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 419977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 42008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 420277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 420377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 420477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 420577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 420615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 420715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 420877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 42098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42125e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 42135e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 42145e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 42155e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 42165e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 42178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 42188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 42198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 42208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 42210b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4222456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 42238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 42258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 42268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 42278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4230d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4231d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4232d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4233d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4234d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4235d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4236c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4237b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4238b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4239d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4240d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4241d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4242d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 42438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 42462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 42472c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 42492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 42502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 42512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 42522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 42532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 42542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4255da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4256da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4257da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 4258da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4259da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4260da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4261456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 426215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 426315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4264da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4265da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 42668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 42678b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 42688b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 42698b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42708b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 42718b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 42728b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 42738b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 42748b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 42758b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 42768b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 42778b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 427828873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_CMP_SWAP: { 427928873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); 4280ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4281ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 428228873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), 428328873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getBasePtr(), Tmp2, Tmp3, 4284fd4418fc9b4725c44210c169c4d6500be468ca70Dan Gohman AtomNode->getSrcValue(), 428528873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getAlignment()); 4286ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4287ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4288ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4289ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 429028873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_ADD: 429128873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_LOAD_SUB: 429263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_AND: 429363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_OR: 429463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_XOR: 4295507a58ac9b20ddcea2e56a014be26b8f8cc0ecb8Andrew Lenharth case ISD::ATOMIC_LOAD_NAND: 429663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MIN: 429763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MAX: 429863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMIN: 429963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMAX: 4300ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 430128873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); 4302ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 430328873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), 430428873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getBasePtr(), Tmp2, 4305fd4418fc9b4725c44210c169c4d6500be468ca70Dan Gohman AtomNode->getSrcValue(), 430628873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang AtomNode->getAlignment()); 4307ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4308ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4309ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4310ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4311ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 431203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 431303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 431403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 43150f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 43168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 43170f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 43180f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 431901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 43200f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 43210f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43220f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43230f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 43240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 432501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 432601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 432701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 432801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 432901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 433001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 433101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 433201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 433301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 433401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 433501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 433601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 43378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 43388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 433901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 434015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 434115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43420f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 43430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 43448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 43458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 43468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 43478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 434983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isInteger()) { 435015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 435115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 435215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 435315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 43558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 435883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isFloatingPoint() && NoExcessFPPrecision) 435915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 436015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 436201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 436301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4364a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 436501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4366ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 43670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43680bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 43690bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4370ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4371ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 43720bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43730bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 43740bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4375ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 437601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 437701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 437801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4379a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 438001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 438101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 438201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 43838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 43858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 43868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 43878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 438983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NVT.isInteger() && "Operators don't apply to FP!"); 439023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 439123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 43928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 43968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 43988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 44008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 44018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 440215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 440315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 44058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 44068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 44078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 44088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 440923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4410456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 44118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 44120aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 44130aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4414456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 44160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 44170aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 4418126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands Result = TLI.LowerOperation(Tmp3, DAG); 44190aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 442069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 442169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 44220aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 44230aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 442483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 44250aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 44260aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 442769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 44280aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4429466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 44300aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 44310aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4432456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44330aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 44340aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4435466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4436466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 443762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 443862f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 443962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 444062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 444155b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4442b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4443d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4444d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 44454c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44474c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4448466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 44498bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel case ISD::SELECT: { 445003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 445103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 44528bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel 445383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT2 = Tmp2.getValueType(); 44548bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel assert(VT2 == Tmp3.getValueType() 4455ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel && "PromoteOp SELECT: Operands 2 and 3 ValueTypes don't match"); 4456ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // Ensure that the resulting node is at least the same size as the operands' 4457ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // value types, because we cannot assume that TLI.getSetCCValueType() is 4458ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // constant. 4459ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel Result = DAG.getNode(ISD::SELECT, VT2, Node->getOperand(0), Tmp2, Tmp3); 446003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 44618bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel } 44629373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 44639373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 44649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 44659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4466456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 44679373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4468d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4469d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4470d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4471d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4472d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 447383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 447483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), 4475d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4476d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4477fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4478fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4479fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4480456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4481456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4482fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4483fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4484456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4485fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4486fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4487fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4488fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4489456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 44905b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 449183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 4492b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 449300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 449483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), NVT), Tmp1); 4495fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4496fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4497fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 449800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 449983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 450083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), NVT)); 4501fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4502fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4503fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 45047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 45057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 45066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 45074aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 45084aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 45094aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 451003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 451103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 451203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4513456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4514456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4515456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4516456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4517456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 451803c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 451903c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 452003c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 45213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 45237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 45247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 45257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 45267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 45271597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 45281597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 45291597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 45301597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 45317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 45321597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 453383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = Vec.getValueType(); 453483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = TVT.getVectorNumElements(); 45351597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 45377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 45387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 45397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 45427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 45437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 45447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 45477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 45487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4550844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 45517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 45547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 45581597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 45597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 45607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 456155030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 45627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45631597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 45641597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 456555030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 45661597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 45671597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45681597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 456955030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 45707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 45711597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45731597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 45741597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 45761597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 45787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 457985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 45807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 45817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 458383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = Op.getValueType().getSizeInBits()/8; 45847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 45857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 458690bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45878e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Idx.getValueType().bitsGT(TLI.getPointerTy())) 4588f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 458990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4590f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 459190bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 45937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 45951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 45971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 45981597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 46006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 46017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 46026595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 46036595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 46046595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 46056595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 46066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 460783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = Vec.getValueType().getVectorNumElements(); 46086595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 460983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NumElems == Op.getValueType().getVectorNumElements()) { 46106595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 46117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 46126595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46136595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46146595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 46156595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 46166595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 46176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 46186595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 46196595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 46206595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 46216595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 46226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46246595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 46256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 46267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 46274aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 46284aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4632750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4638638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 465083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LHS.getValueType().isInteger()) { 465183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 465283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 4653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4675750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 46842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 468583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 46862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 46872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 46886518c6ed7ea609696304bbbe848342cacd001f12Evan Cheng RTLIB::Libcall LC1 = RTLIB::UNKNOWN_LIBCALL, LC2 = RTLIB::UNKNOWN_LIBCALL; 46892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 46912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 469256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 46932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 46952b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 469656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 46972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 46992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 470056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 47012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 47032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 470456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 47072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 470856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 47112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 471256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4715d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4716d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 47172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 47185efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 47192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 472156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 47222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 47232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 47242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 472556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 47272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 472856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 473156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 47322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 473456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 473756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 473956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 474056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 474156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 47422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 47432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4745f9516208e57364ab1e7d8748af1f59a2ea5fb572Duncan Sands 47462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 47474bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands SDOperand Ops[2] = { LHS, RHS }; 47484bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands Tmp1 = ExpandLibCall(LC1, DAG.getMergeValues(Ops, 2).Val, 4749b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4751d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 475256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 47535b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 47545922f561c65968ef1865cc8434d191041e450602Nate Begeman CC); 47554bdcb61af33399d4e01fdf3c47ca1f1f5356e370Duncan Sands LHS = ExpandLibCall(LC2, DAG.getMergeValues(Ops, 2).Val, 4756b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47575b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHS), LHS, Tmp2, 4758d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 47592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 47602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 47612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 476221cacc4de88098a6f2ccfcde18ccec0aa6654f3eEvan Cheng LHS = LegalizeOp(Tmp1); 47632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 47642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 47652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4767750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4768750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4769638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4770638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4771638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4772638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4773638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4774638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4775638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4776638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4777638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 47785b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETEQ); 47795b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); 4780638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 47815b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETNE); 47825b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); 4783638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4784638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4785638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4786638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4787638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4788638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4789638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4811002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman CST->isNullValue()) || // X < 0 4812750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4819750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 48212e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4827750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4830750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4831750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4832750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4833750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4834750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4835750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4836750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4837750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4838750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 48392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 48405b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, 48415922f561c65968ef1865cc8434d191041e450602Nate Begeman LowCC, false, DagCombineInfo); 48422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 48435b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, LowCC); 48445b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 48462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 48475b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHSHi), LHSHi, 48485922f561c65968ef1865cc8434d191041e450602Nate Begeman RHSHi,CC); 48492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 48502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 48512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 4852002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 4853002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 48542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 48552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 4856002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 48572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 48582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 48592e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 48602e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 48612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 48622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 48632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 48655b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48662e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 48672e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 48685b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result=DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48695922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETEQ); 48702e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 48712e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 48722e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 48732e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48742e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4875750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 48772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4878750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4879750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4880750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4881750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 48821401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 48831401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 48841401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 48851401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 48861401d15c99b284ead81b8476a6db95328c5f28fdChris LattnerSDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp, 488783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SlotVT, 488883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT) { 488935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 4890364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang unsigned SrcAlign = TLI.getTargetData()->getPrefTypeAlignment( 4891364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang SrcOp.getValueType().getTypeForMVT()); 4892364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT, SrcAlign); 4893364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 4894bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 489569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 4896364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 489783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcSize = SrcOp.getValueType().getSizeInBits(); 489883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SlotSize = SlotVT.getSizeInBits(); 489983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DestSize = DestVT.getSizeInBits(); 4900364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang unsigned DestAlign = TLI.getTargetData()->getPrefTypeAlignment( 4901364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang DestVT.getTypeForMVT()); 49021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 49031401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 49041401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 49051401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand Store; 4906364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang 49071401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 490869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 4909364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang PseudoSourceValue::getFixedStack(), SPFI, SlotVT, 4910364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, SrcAlign); 49111401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 49121401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 491369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 4914364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang PseudoSourceValue::getFixedStack(), SPFI, 4915364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, SrcAlign); 49161401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 491735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 491835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 49191401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 4920364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0, false, DestAlign); 49211401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 49221401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 4923364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT, 4924364d73ddab43b699ab90240f11b7a2eb5cf69bd8Mon P Wang false, DestAlign); 492535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 492635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 49274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 49284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 49294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 493085dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 493169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4932bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 493369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 493469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4935786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 49363069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 493769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 49383069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 49394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 49404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 49414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4942ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 494307a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4944ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4945ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4946ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 494787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4948033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4949ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 495087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4951f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4952f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // FIXME: it would be far nicer to change this into map<SDOperand,uint64_t> 4953f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // and use a bitmask instead of a list of elements. 4954033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4955033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 49562eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 49572eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 49582eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 49592eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 49602eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4961033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4962033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 496389a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4964033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4965ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4966033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 496787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 49682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49692eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 49702eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 49712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 49722eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 49732eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4974ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4975ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4976ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4977ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4978ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4979ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4980ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4981ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4982ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4983ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4984ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4986ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 498783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4988ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4989033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4990ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4991ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 499202a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner CV.push_back(ConstantFP::get(V->getValueAPF())); 4993ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 499402a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 499502a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner CV.push_back(ConstantInt::get(V->getAPIntValue())); 4996ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4997ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 499802a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner const Type *OpNTy = 499983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Node->getOperand(0).getValueType().getTypeForMVT(); 5000ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 5001ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5002ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 50039d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 5004ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 500569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 50063069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 5007ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 50082eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 50092eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 50102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 501183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 501283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand Zero = DAG.getConstant(0, MaskVT.getVectorElementType()); 50132eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 5014bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5015bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 5016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 50172eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 50184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 50192eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 50202eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 50212eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 50222eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 50232eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 50242eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 50252eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 50262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 50272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 50282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 50292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 5030033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 5031033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 5032033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 5033f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Get the two values in deterministic order. 5034f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Val1 = Node->getOperand(1); 5035f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Val2; 5036f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::map<SDOperand, std::vector<unsigned> >::iterator MI = Values.begin(); 5037f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (MI->first != Val1) 5038f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = MI->first; 5039f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 5040f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = (++MI)->first; 5041f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5042f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If Val1 is an undef, make sure end ends up as Val2, to ensure that our 5043f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // vector shuffle has the undef vector on the RHS. 5044f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val1.getOpcode() == ISD::UNDEF) 5045f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::swap(Val1, Val2); 5046f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5047033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 504883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 504983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskEltVT = MaskVT.getVectorElementType(); 5050033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 5051f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5052f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val1. 5053f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val1Elts = Values[Val1]; 5054f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val1Elts.size(); i != e; ++i) 5055f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val1Elts[i]] = DAG.getConstant(0, MaskEltVT); 5056f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5057f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val2. 5058f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val2Elts = Values[Val2]; 5059f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val2Elts.size(); i != e; ++i) 5060f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val2.getOpcode() != ISD::UNDEF) 5061f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getConstant(NumElems, MaskEltVT); 5062f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 5063f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getNode(ISD::UNDEF, MaskEltVT); 5064f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5065bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5066bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 5067033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5068f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If the target supports SCALAR_TO_VECTOR and this shuffle mask, use it. 50694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 50704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 5071f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val1); 5072f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val2); 5073f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Ops[] = { Val1, Val2, ShuffleMask }; 5074033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5075033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 5076f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops, 3); 5077033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5078033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5079ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5080ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 5081ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 5082ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 508383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 5084ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 508585dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 5086ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5087ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 5088bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 508983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned TypeByteSize = Node->getOperand(0).getValueType().getSizeInBits()/8; 5090ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 5091ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 5092ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 5093ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 5094ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5095841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 5096ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5097ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 5098ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 5099ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5100786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 51018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 5102ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5103ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5104ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 5105ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 5106bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 5107bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 5108ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 5109ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 5110ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5111ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 5112466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 5113ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 5114ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 51155b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 51165b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 51175b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 51185b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 51195b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 51205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 51215b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5122bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 512383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHSL.getValueType(); 5124f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 51255b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 51265b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 51275b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 51285b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5129e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5130e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5131e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5132e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5133e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 5134e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 5135e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5136e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 513883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 514083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShTy = ShAmt.getValueType(); 514183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned ShBits = ShTy.getSizeInBits(); 514283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned VTBits = Op.getValueType().getSizeInBits(); 514383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5144f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 51457a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5146f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 5147f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 5148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5149f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 5150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5151f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5152f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5153f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5154f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5159ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5160ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5161ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5162f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5163f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5164f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5165f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5166f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5167f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5168f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5169f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5170f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5171f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5172f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5173f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5174f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5175f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5176ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5177ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5178ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5179f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5180f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5181f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5182f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5183f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5184f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5185f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5186f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5187f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5188edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5189f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5190f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5191edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5192f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5193edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5194f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5195ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5196ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5197edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5198ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5199f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5200f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5201f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5202f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5203f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5204f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5205f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5206f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5207f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 52080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 52100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 521191dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 521291dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5213ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 52140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52159e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 52169e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 521791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 52180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 52190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 522091dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 52210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 52230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 52240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 52280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 52290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 52320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 52330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 52360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 52370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 52380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52429e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 52439e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 52449e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 52450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 52460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 52470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 52480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 52490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 52510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 52520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 52560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 52570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 52580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 52590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 52620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 52680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5275f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5276e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 527777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 52789c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 527977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 528077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 528177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 528277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 5283460a14e09c2af630fc1e840dcb3e0f725663067bDuncan SandsSDOperand SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, 528447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 52856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 52866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 52876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 52886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 52896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 52906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 529177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 529247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 529377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 529483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ArgVT = Node->getOperand(i).getValueType(); 529583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *ArgTy = ArgVT.getTypeForMVT(); 529647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5297d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 529800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 529947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 530077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 5301460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands SDOperand Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), 5302460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands TLI.getPointerTy()); 5303edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 53040d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 530583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *RetTy = Node->getValueType(0).getTypeForMVT(); 53060d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 530700fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, 530800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, Callee, Args, DAG); 53090d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 53106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 53116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 53126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 53136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 531499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 53150d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 531677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 531777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5318456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 531999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 532077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 532199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 532299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 532377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 532422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 532522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 532622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 532722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53284c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 53294c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 533022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 533183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan SandsExpandIntToFP(bool isSigned, MVT DestTy, SDOperand Source) { 533283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SourceVT = Source.getValueType(); 5333034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman bool ExpandSource = getTypeAction(SourceVT) == Expand; 533422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53359845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc. 53369845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng if (!isSigned && SourceVT != MVT::i32) { 533734bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman // The integer value loaded will be incorrectly if the 'sign bit' of the 533822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 533922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 5340034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand Hi; 5341034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5342034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand Lo; 5343034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, Lo, Hi); 5344034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, Lo, Hi); 5345034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } else { 5346034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman // The comparison for the sign bit will use the entire operand. 5347034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Hi = Source; 5348034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 534922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 535022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 535122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 5352034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand SignedConv = ExpandIntToFP(true, DestTy, Source); 535322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53545b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultType(Hi), Hi, 535522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 535622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 53570bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 535822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 535922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 536022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 536122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 536234bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 536322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 536422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 536522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 536622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 536722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 536869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 53693069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 53708e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands else if (DestTy.bitsGT(MVT::f32)) 53714c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5372118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 537369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 53743069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 537569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32); 53769e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 53779e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 53789e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 537983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SCVT = SignedConv.getValueType(); 53804c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 53814c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 53824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 538383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SCVT.getSizeInBits() != DestTy.getSizeInBits()) { 538483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SCVT.getSizeInBits() * 2 == DestTy.getSizeInBits()); 5385d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman SignedConv = DAG.getNode(ISD::BUILD_PAIR, DestTy, 53864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 53874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 53884c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 53894c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 539022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 539122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 539222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 539322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 5394d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman switch (TLI.getOperationAction(ISD::SINT_TO_FP, SourceVT)) { 539522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 539622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 539722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 539822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 539922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 540022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 540122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 540222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 540322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 540422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 540522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 540622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 540722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 540822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 540922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 5410034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5411034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand SrcLo, SrcHi; 5412034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, SrcLo, SrcHi); 5413034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, SrcLo, SrcHi); 5414034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 541656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 5417110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (SourceVT == MVT::i32) { 5418110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (DestTy == MVT::f32) 5419db45d1c649aa2e7c71accd8ad460aa764886cab3Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 5420110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng else { 5421110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng assert(DestTy == MVT::f64 && "Unknown fp value type!"); 5422110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 5423110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng } 5424110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng } else if (SourceVT == MVT::i64) { 5425d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman if (DestTy == MVT::f32) 5426d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I64_F32; 5427034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else if (DestTy == MVT::f64) 5428d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I64_F64; 5429034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else if (DestTy == MVT::f80) 5430034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman LC = RTLIB::SINTTOFP_I64_F80; 5431034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else { 5432034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman assert(DestTy == MVT::ppcf128 && "Unknown fp value type!"); 5433034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman LC = RTLIB::SINTTOFP_I64_PPCF128; 5434d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } 5435d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } else if (SourceVT == MVT::i128) { 5436d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman if (DestTy == MVT::f32) 5437d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F32; 5438d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else if (DestTy == MVT::f64) 5439d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F64; 5440d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else if (DestTy == MVT::f80) 5441d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F80; 5442d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else { 5443d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(DestTy == MVT::ppcf128 && "Unknown fp value type!"); 5444d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_PPCF128; 5445d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } 5446d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } else { 5447d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(0 && "Unknown int value type"); 544822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 54496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 54504c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 54516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 5452a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman SDOperand HiPart; 5453460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands SDOperand Result = ExpandLibCall(LC, Source.Val, isSigned, HiPart); 5454110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (Result.getValueType() != DestTy && HiPart.Val) 5455a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Result = DAG.getNode(ISD::BUILD_PAIR, DestTy, Result, HiPart); 5456a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman return Result; 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 545922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 546022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 546122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 546222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 546322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 546422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 546583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT) { 546622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 546722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 546822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 546923594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 547023594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner SDOperand StackSlot = DAG.CreateStackTemporary(MVT::f64); 547123594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 547222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 547322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 547422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5475408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5476408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5477408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5478408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5479408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 548022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 548222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5490786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 54918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 549222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 549322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 54958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 549622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5497466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 549822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 549922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 550022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 550122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 550222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 550722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 55118e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsLT(MVT::f64)) { 55120bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 55130bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 55148e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsGT(MVT::f64)) { 5515118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 55225b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultType(Op0), Op0, 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 55250bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 552622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 553383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (Op0.getValueType().getSimpleVT()) { 553422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 553522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 553622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 553722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 553922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 554022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 554147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 554622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 554769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 55483069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 554922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 555069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 555169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 555269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 55533069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 555469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32)); 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 555622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 555722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 555822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 556022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 556122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 556222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 556322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 556422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 556522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 556683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT, 556722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 556822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 556983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = LegalOp.getValueType(); 557022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 557122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 557222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 557322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 557422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 557583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 557683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() && "Ran out of possibilities!"); 557722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 557822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 557922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 558022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 558122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 558222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 558322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 558422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 558522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 558622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 558722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 558822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 558922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 559022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 559122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 559222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 559322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 559422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 559522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 559622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 559722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 559822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 559922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 560022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 560122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 560222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 560322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 560422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 560522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 560622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 560722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 560822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 560922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 561022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 561122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 561222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 561377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 561477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 561522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 561622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 561722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 561822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 561922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 562022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 562183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT, 562222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 562483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewOutTy = DestVT; 56259c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5627e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 562822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 562922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 563083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewOutTy = (MVT::SimpleValueType)(NewOutTy.getSimpleVT()+1); 563183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewOutTy.isInteger() && "Ran out of possibilities!"); 563266de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 563522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 563622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 563722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 564122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 564322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 564422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5645e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 564622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 564722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 564822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 564922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 565022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 565122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 565222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 565322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 565422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 565522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5656e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 565722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 56580d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 565922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5660a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5661a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 566227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 566327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 566427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 5665126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 566627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 566727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 566827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 566927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 5670126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands Operation = SDOperand(TLI.ReplaceNodeResults(Operation.Val, DAG), 0); 567127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 567227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 5673126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 567427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 567527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 567627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 567722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 567813689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 568022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 568283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 568383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SHVT = TLI.getShiftAmountTy(); 568422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 568583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (VT.getSimpleVT()) { 568622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 568722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 568822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 569022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 569622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 569822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 570122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 570222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 570322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 570422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 570522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 570622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 570722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 570822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 570922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 571022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 571122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 571222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 571322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 571422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 571522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 571622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 571722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 571822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 571922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 572022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 572122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 572222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 57230d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 572477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5725edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 572622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 572722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 572822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 572922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 573022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 573122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 573222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 573322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 573422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 573522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 573622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 573783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 573883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 573983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 574022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 574122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 574222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 574322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 574422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 574522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 574622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 574722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 574822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 574922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 575022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 575122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 575222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 575322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 575422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 575522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 575622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 575722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 575822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 575922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 576083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 576183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 576283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 576322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 576422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 576522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 576622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 576722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 576822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 576922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 577022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 577122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 577222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 577322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 577422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 577583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 577622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 577722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 577822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 577922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 578022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 578122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 578222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 578322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 578483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), VT), 578522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 578622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 578722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 578822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 578922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5790e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 57913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 57923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 57933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 57943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 57953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 57963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 579783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 579883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 57993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 58003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 58018e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(((NVT.isInteger() && NVT.bitsLT(VT)) || VT.isFloatingPoint() || 580283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.isVector()) && "Cannot expand to FP value or to larger int value!"); 58033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 58046fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 58059cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 58066fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 58076fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 58086fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 58096fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 58106fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 58113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 58123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 58133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5814348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5815348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 58166eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 58176eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 58186eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 58196eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5820fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5821fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5822fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5823fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5824fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 58256eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 58266eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 58276eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 58286eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 58296eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 58306eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5831348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5832e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 583339833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5834e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 58353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 58363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 58371953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 58381953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 58391953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 58401953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 584118714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 584225f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 584325f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 584425f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 584525f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 584625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5847fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5848fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5849fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5850fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 58513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 585283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5853050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); 5854050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); 5855050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); 58563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5858004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5859004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5860a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5861a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5862a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5863a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5864a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5865a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5866a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5867a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5868279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 58699f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 58709f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5871004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5872004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5873d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 58748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 58758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 58768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5877d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 587827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 587927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5880c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5881c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5882c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5883c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 588427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 588527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 588627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 588727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 588827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 588927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 589027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 589127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 589258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 589358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 589458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58954bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 58964bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 58974bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 58984bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 58994bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 590058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 590183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits()-1, 590258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 590358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5904d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5905d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5906d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5907d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5908d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5909d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5910d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5911d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5912d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5913edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5914edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 59159b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 59169b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 59179b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5918edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5919edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5920edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 592139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 592239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 59233becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 592483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 592539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 59265b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultType(HLZ), HLZ, BitsC, 59277cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 592839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 592939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 593039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 593139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 593239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 593339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 593439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 593539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 593639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 593739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 59383becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 593983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 594039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 59415b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultType(LTZ), LTZ, BitsC, 59427cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 594339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 594439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 594539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 594639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 594739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 594839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 594939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5950edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5951acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 59528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 59538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5954acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5955acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5956acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5957acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 59588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5959acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 59600753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5961acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5962acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5963acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5964acc398c195a697795bff3245943d104eb19192b9Nate Begeman 59653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5966466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5967466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5968466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5969466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5970d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5971d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5972d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5973466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5974466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5975d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5976d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5977004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5978004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5979004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5980004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 59819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 59829f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 59839f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5984004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5985004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5986466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5987466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 598883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = Lo.getValueType().getSizeInBits()/8; 5989466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 59900bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 59917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5992dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5993d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5994d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5995466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5996466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5997466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5998466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5999466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 6000466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6001466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 6002466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 60030753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 6004466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 6005466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 600683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = LD->getMemoryVT(); 6007548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 6008b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 6009b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 6010548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 6011548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 6012d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 6013548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 6014548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 6015548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 6016548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 6017548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 6018466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6019466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 6020466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 6021d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 6022466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 6023466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 6024d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 6025d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 6026466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6027466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 6028466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 6029466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6030466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 6031466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 6032466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 603383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 6034466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 6035466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 6036466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 6037466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 6038466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 6039466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 6040466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 6041466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 6042466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 6043466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 60443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 60473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 60483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 60493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 60503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 60513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 60523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 60533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 60543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 6057456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 60583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 60593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 606019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 606119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 6062456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 606319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 606419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 60653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60679373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 60689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 60699373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 60709373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 607119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 607219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 60739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 60749373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 607519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 607619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 607719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 60789373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 60799373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 60808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 608113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 60828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 608313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 608413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 608513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 60863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 60873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 60883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6090edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 60923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 609383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 60948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 60958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 60963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 60993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 61003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 61018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6102edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 61033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 61043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 61053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 610635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 61074c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 61084c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 61094c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 61104c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 61114c948eb373779718e5be36d7674382b52114bf65Chris Lattner 61124c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 61134c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 61144c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 61154c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 61164c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 61174c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 61184c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 61194c948eb373779718e5be36d7674382b52114bf65Chris Lattner 612035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6121f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 6122f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6123f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6124f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6125f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6126f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6127f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6128f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6129f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6130f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6131f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 61321a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 613313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 613413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 613519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 613619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 61377b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 61387b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 61397b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 61407b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 61417b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 614283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT0 = Node->getOperand(0).getValueType(); 61437b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 61447b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 61451a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 61461a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 61471a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6148f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6149f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 61501401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6151f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 615235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 615335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 615435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6155f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 615627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6157308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6158308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6159308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 616027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 616127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 616227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6163308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 616427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6165f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 616627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6167f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 616828873106309db515d58889a4c4fa3e0a92d1b60eMon P Wang case ISD::ATOMIC_CMP_SWAP: { 6169d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth SDOperand Tmp = TLI.LowerOperation(Op, DAG); 6170d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth assert(Tmp.Val && "Node must be custom expanded!"); 6171d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth ExpandOp(Tmp.getValue(0), Lo, Hi); 6172d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 6173d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth LegalizeOp(Tmp.getValue(1))); 6174d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth break; 6175d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth } 6176d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6177d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6178d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 61794e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 61804e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 618156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 618280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6183f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 6184f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6185f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6188f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6189d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6190f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6191f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 619280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 619380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 619407dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 619507dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 619607dffd6af673c73352150583150b242a93694f00Chris Lattner break; 619707dffd6af673c73352150583150b242a93694f00Chris Lattner } 619880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6199d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6200161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 6201a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i64) { 6202a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6203a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I64; 6204a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6205a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I64; 6206a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6207a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I64; 6208a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6209a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I64; 6210460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6211a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 6212a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6213a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I128; 6214a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6215a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I128; 6216a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6217a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I128; 6218a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6219a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I128; 6220460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6221a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 6222a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected uint-to-fp conversion!"); 6223a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } 62244e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 622556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6226d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 622756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 622880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 62298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 62308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 62318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 62328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 62338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 62348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 62378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 623907dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 624007dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 624107dffd6af673c73352150583150b242a93694f00Chris Lattner break; 624207dffd6af673c73352150583150b242a93694f00Chris Lattner } 624380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6244d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6245daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 6246a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i64) { 6247a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6248a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I64; 6249a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6250a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I64; 6251a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6252a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I64; 6253a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6254a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I64; 6255460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6256a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 6257a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6258a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I128; 6259a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6260a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I128; 6261a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6262a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I128; 6263a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6264a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I128; 6265460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6266a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 6267a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected uint-to-fp conversion!"); 6268a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } 62694e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 627056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 62714e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 627205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 627350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6274348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 627550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 62768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 627750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 627850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 627950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 628050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 628150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 628250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 628350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 628450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 628550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 628679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 628779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 628879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 6289002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if (ShAmt->getAPIntValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 629079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 629179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 629279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 629379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 629479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 629579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 629679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 629779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 629879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 629979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 630079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 630179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 630279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 630379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6304e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6305348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6306e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63074759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63084759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 630905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 631005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 631105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 631205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6313348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63144759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63154759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63164759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6317e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6318460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SHL_I64, Node, false/*left shift=unsigned*/, Hi); 6319e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 632005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6321e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 632205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 632350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6324348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 632550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 63268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 632750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 632850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 632950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 633050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 633150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 633250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 633350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 633450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 633550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6336e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6337348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6338e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63394759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63404759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 634105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 634205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 634305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 634405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6345348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63464759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63474759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63484759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6349e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6350460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRA_I64, Node, true/*ashr is signed*/, Hi); 6351e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 635205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 635305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 635405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 635550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6356348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 635750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 63588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 635950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 636050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 636150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 636250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 636350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 636450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 636550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 636650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 636750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6368e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6369348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6370e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63714759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63724759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 637305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 637405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 637505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 637605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6377348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63784759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63794759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63804759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6381e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6382460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRL_I64, Node, false/*lshr is unsigned*/, Hi); 6383e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 638405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6385e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6386edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 63878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 63888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 63898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 63908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 639169bfb15ecd71881ec8d01be94af99b6d90d2fe01Duncan Sands SDOperand Result = TLI.LowerOperation(Op, DAG); 639269bfb15ecd71881ec8d01be94af99b6d90d2fe01Duncan Sands if (Result.Val) { 639369bfb15ecd71881ec8d01be94af99b6d90d2fe01Duncan Sands ExpandOp(Result, Lo, Hi); 63948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 63958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 63968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 63978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 63988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 63998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 64008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 64018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 640279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 640379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 6404bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6405bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6406bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6407bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6408551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 640979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6410bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 641179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6412551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 641379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6414bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 641579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6416551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 641784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 64188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6419b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6420b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6421b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6422b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6423b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6424b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6425b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6426b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6427b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 6428b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6429b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6430b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6431b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6432b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6433b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6434b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6435b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6436b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6437b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6438b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6439b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6440b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6441b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6442b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6443b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6444b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6445b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6446b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6447b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6448b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6449b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6450b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6451b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6452b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6453b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6454b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6455b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6456b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6457b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6458b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6459b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6460b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6461c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 64627d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 64637d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 64648829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 64658829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 64668829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 64677d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 64687d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 64697d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 64707d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 64713f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 64723f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6473525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6474525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6475525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6476c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 6477c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6478c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 64792e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 64802e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6481525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6482525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 648376c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 648476c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman if (DAG.MaskedValueIsZero(Node->getOperand(0), HighMask) && 648576c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman DAG.MaskedValueIsZero(Node->getOperand(1), HighMask)) { 6486525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6487525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6488525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6489525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6490525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6491525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6492525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6493525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6494525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6495525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6496525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6497525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6498525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6499525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 65002e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6501525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6502525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6503525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6504525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6505525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6506525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6507525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6508525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6509525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6510525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6511525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6512525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6513525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6514525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6515525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6516525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6517525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6518525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6519525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6520525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 652156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 652256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 652356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 652456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6525a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 652656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 65278eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 65288eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 65298eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 65308eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 65318eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 65328eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 65338eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 65348eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 65358eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6536c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 65373f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6538525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 6539460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::MUL_I64, Node, false/*sign irrelevant*/, Hi); 6540c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6541c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 654256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 6543460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SDIV_I64, Node, true, Hi); 654456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 654556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 6546460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UDIV_I64, Node, true, Hi); 654756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 654856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 6549460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SREM_I64, Node, true, Hi); 655056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 655156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 6552460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UREM_I64, Node, true, Hi); 655356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 65545c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 65551a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6556460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::ADD_F32, 6557460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F64, 6558460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F80, 6559460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_PPCF128), 656056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65621a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6563460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::SUB_F32, 6564460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F64, 6565460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F80, 6566460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_PPCF128), 656756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6570460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::MUL_F32, 6571460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F64, 6572460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F80, 6573460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_PPCF128), 657456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65751a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65761a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6577460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::DIV_F32, 6578460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F64, 6579460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F80, 6580460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_PPCF128), 658156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65821a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65831a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6584ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6585ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6586ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6587ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6588ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6589ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6590ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6591ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6592ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6593ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6594ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6595460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::FPEXT_F32_F64, Node, true, Hi); 65961a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65971a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 6598460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::FPROUND_F64_F32, Node, true, Hi); 65991a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6600c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6601460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::POWI_F32, 6602460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_F64, 6603460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_F80, 6604460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_PPCF128), 6605c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6606c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 660798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 660898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 660998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 661056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 661198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 661256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6613007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6614007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 661556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 661656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6617007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6618007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 661956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 662056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6621007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6622007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 662356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 662498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 662598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6626460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false, Hi); 662798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 662898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6629966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6630f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6631f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6632f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6633f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6634f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6635f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6636f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6637f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6638f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6639f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6640966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6641966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6642966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6643966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6644966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6645966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6646966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6647966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6648966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6649966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6650966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6651f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6652f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6653f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6654f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6655f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6656f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6657966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6658966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6659966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6660966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6661966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6662966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6663966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6664966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6665966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6666966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6667912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6668912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6669912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6670912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6671912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6672912095becac923ff614d7b07728eb345ada67765Evan Cheng } 66737df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 66747df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 66757df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 667683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(0).getValueType(); 6677cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6678cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // Promote the operand if needed. Do this before checking for 6679cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // ppcf128 so conversions of i16 and i8 work. 6680cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen if (getTypeAction(SrcVT) == Promote) { 6681cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SDOperand Tmp = PromoteOp(Node->getOperand(0)); 6682cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Tmp = isSigned 6683cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 6684cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen DAG.getValueType(SrcVT)) 6685cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen : DAG.getZeroExtendInReg(Tmp, SrcVT); 6686cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 6687cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SrcVT = Node->getOperand(0).getValueType(); 6688cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen } 6689cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6690a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::ppcf128 && SrcVT == MVT::i32) { 6691f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6692ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6693ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6694ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6695ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6696ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6697f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6698ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6699ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6700ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6701ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 67026e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6703ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6704ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6705ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6706ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6707ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6708ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6709ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6710ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6711ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6712ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6713ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6714ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 67156e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 67166e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6717f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 67186e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 67196e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 67206e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 67216e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 67226e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 67236e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 67246e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 67256e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 67266e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 67276e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 67286e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 67296e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 67306e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 67316e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 67326e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 67337df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 6734a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 6735a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Node->getOperand(0)); 6736110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 67376ad2f930da0ebadb0e000397cea8384c650877bbEvan Cheng // float to i32 etc. can be 'expanded' to a single node. 6738110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng ExpandOp(Lo, Lo, Hi); 67397df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 67407df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 674198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 67423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 674383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 674483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 674583397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 674683397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 674713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 674813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 674913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 675083397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 675105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 675205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 67536b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman bool isNew = 67546b345ee9b2833cf1b2f79dc16d06d4060bec36efDan Gohman ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 675505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 67563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 67573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 67587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 67597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6760c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6761c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 676283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Cannot split non-vector type!"); 6763c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 676483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElements = Op.getValueType().getVectorNumElements(); 6765c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 67665db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 676783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewEltVT = Op.getValueType().getVectorElementType(); 67685db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 67695db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 67705db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 67715db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 677283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Lo = MVT::getVectorVT(NewEltVT, NewNumElts_Lo); 677383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Hi = MVT::getVectorVT(NewEltVT, NewNumElts_Hi); 67745db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6775c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6776c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6777c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6778c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6779c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6780c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6781c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6782c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6783c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6784c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6785e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6786e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 678739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6788e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6789e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6790daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6791daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6792daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6793daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 67947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 67957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 67989fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 67996867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (ConstantSDNode *Idx = dyn_cast<ConstantSDNode>(Node->getOperand(2))) { 68006867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Node->getOperand(0), Lo, Hi); 68016867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman unsigned Index = Idx->getValue(); 68026867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand ScalarOp = Node->getOperand(1); 68036867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (Index < NewNumElts_Lo) 68046867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 68056867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index)); 68066867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman else 68076867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 68086867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index - NewNumElts_Lo)); 68096867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman break; 68106867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman } 68116867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp = PerformInsertVectorEltInMemory(Node->getOperand(0), 68126867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(1), 68136867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(2)); 68146867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Tmp, Lo, Hi); 68159fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 68169fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 68176c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 68186c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 68196c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 68206c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 682183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 68226c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 68236c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 68246c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 68256c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 68266c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 68275922f561c65968ef1865cc8434d191041e450602Nate Begeman SDOperand IdxNode = Mask.getOperand(i); 68285922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 68295922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 68305922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 68315922f561c65968ef1865cc8434d191041e450602Nate Begeman } 68325922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 68336c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 68346c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 68356c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 68366c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 68376c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68386c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 68396c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 68406c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 68426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 68436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 68446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 68455922f561c65968ef1865cc8434d191041e450602Nate Begeman SDOperand IdxNode = Mask.getOperand(i); 68465922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 68475922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 68485922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 68495922f561c65968ef1865cc8434d191041e450602Nate Begeman } 68505922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 68516c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 68526c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 68536c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 68546c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 68556c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68566c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 68576c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 68586c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68596c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 68606c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 68616c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6863bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 68645db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 68655db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6866c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68675db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 68687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 68695db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6870c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6871c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 68727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 68735db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 68747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 68757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 68767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 68777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 68787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 68797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 68807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 68815db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 68826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 68837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 68847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 68855db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 68867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 68876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 68886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6889c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6890c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6891c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6892c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6893c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6894c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6895c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 689683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Cond.getValueType().isVector()) { 6897c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6898c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6899c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 69005db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 69015db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6902c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6903c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 69045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 69055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6906c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6907c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6908c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 690980c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner case ISD::SELECT_CC: { 691080c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SDOperand CondLHS = Node->getOperand(0); 691180c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SDOperand CondRHS = Node->getOperand(1); 691280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SDOperand CondCode = Node->getOperand(4); 691380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner 691480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SDOperand LL, LH, RL, RH; 691580c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SplitVectorOp(Node->getOperand(2), LL, LH); 691680c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner SplitVectorOp(Node->getOperand(3), RL, RH); 691780c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner 691880c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner // Handle a simple select with vector operands. 691980c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Lo = DAG.getNode(ISD::SELECT_CC, NewVT_Lo, CondLHS, CondRHS, 692080c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner LL, RL, CondCode); 692180c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Hi = DAG.getNode(ISD::SELECT_CC, NewVT_Hi, CondLHS, CondRHS, 692280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner LH, RH, CondCode); 692380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner break; 692480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner } 6925b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 6926b43e9c196542acc80c9e4643809661065710848fNate Begeman SDOperand LL, LH, RL, RH; 6927b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(0), LL, LH); 6928b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(1), RL, RH); 6929b43e9c196542acc80c9e4643809661065710848fNate Begeman Lo = DAG.getNode(ISD::VSETCC, NewVT_Lo, LL, RL, Node->getOperand(2)); 6930b43e9c196542acc80c9e4643809661065710848fNate Begeman Hi = DAG.getNode(ISD::VSETCC, NewVT_Hi, LH, RH, Node->getOperand(2)); 6931b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 6932b43e9c196542acc80c9e4643809661065710848fNate Begeman } 69337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 69347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 69357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 69367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 69377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 69387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 69397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 69407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 69417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6942826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 69437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 69447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6945089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6946089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6947089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6948089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6949c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6950c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6951c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6952c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69535db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 69545db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6955c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6956c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6957826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6958826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6959826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6960826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 69615db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 69625db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6963826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6964826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6965826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6966826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6967826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6968826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6969826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6970826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6971826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6972b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6973b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6974b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6975b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6976b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6977826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6978826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6979826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 69805db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 69815db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6982826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6983826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 69847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 69857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 69867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 69877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 69887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 69897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 69907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 69917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 69927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 69935db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 699483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NewNumElts_Lo * NewEltVT.getSizeInBits()/8; 6995c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 69960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 69977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6998dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 69995db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 7000c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7001c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 7002c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 7003c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 7004c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 7005c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7006c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7007c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 7008c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7009c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 70107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 70117692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 70127692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 701310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 701483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!InOp.getValueType().isVector() || 701583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands InOp.getValueType().getVectorNumElements() == 1) { 701610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 701710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 701810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 701985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 7020bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *FI = cast<FrameIndexSDNode>(Ptr.Val); 70217692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 7022786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 702369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 70243069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 702569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 702669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 70273069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 702869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 70297692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 703010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 703110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 70325db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 70335db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 703410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 70357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 7036c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7037c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7038c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 703940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 7040c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 704110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 7042c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7043c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7044c7029805ef35ce9805931067b841e6af11db382eChris Lattner 704589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 704689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 704789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 70487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 704983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Bad ScalarizeVectorOp invocation!"); 7050c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 705183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT = Op.getValueType().getVectorElementType(); 705283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().getVectorNumElements() == 1); 7053c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 70557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 70567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 7057c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7058c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 7059c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 70602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 7061e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 706239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 7063e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 70647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 70657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 70667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 70677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 70687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 70697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 70707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 70717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 70727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 70737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 70747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 70757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 70767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 7077826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 70787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 70797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 70807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 70817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 7082c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 70837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 7085c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 70867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 70877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 70887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 70897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 70907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 70917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 70927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 70937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 70947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 70959e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 70969e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 70979e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 70989e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70999e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 71009e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 71017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 71027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 71037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 71047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 7105c7029805ef35ce9805931067b841e6af11db382eChris Lattner 71067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 71077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 71087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 71097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 71107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 7111c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7112c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 7113c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7114c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 71157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 71167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 71177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 71187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 71197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 71207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 7121c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 71227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 71236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 71246595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 71256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 71266595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 71277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 71287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 71297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 71307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 71317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 71327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 71337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 71342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 71357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 71367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 71377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 71386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 71396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 7140446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng case ISD::BIT_CONVERT: { 7141446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng SDOperand Op0 = Op.getOperand(0); 714283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Op0.getValueType().getVectorNumElements() == 1) 7143446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Op0 = ScalarizeVectorOp(Op0); 7144446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op0); 7145db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 7146446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng } 71477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7148b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 71497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 71507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7151b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 715280c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner case ISD::SELECT_CC: 715380c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Result = DAG.getNode(ISD::SELECT_CC, NewVT, Node->getOperand(0), 715480c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Node->getOperand(1), 715580c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner ScalarizeVectorOp(Op.getOperand(2)), 715680c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner ScalarizeVectorOp(Op.getOperand(3)), 715780c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner Node->getOperand(4)); 715880c1a5622a26794873b0d44e27c04926cd6c6be1Chris Lattner break; 71590d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman case ISD::VSETCC: { 71600d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman SDOperand Op0 = ScalarizeVectorOp(Op.getOperand(0)); 71610d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman SDOperand Op1 = ScalarizeVectorOp(Op.getOperand(1)); 71620d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Op0), Op0, Op1, 71630d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Op.getOperand(2)); 71640d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SELECT, NewVT, Result, 71650d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(-1ULL, NewVT), 71660d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(0ULL, NewVT)); 71670d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman break; 71680d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman } 7169c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7170c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7171c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7172c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 71737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 71747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7175c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7176c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7177c7029805ef35ce9805931067b841e6af11db382eChris Lattner 71783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 71793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 71803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 71819c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 71825e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 71835e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 71843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 71853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 71873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 71883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7189