lib/Analysis/TargetTransformInfo.cpp

   1 //===- llvm/Analysis/TargetTransformInfo.cpp ------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/Analysis/TargetTransformInfo.h"
  11 #include "llvm/Analysis/TargetTransformInfoImpl.h"
  12 #include "llvm/IR/CallSite.h"
  13 #include "llvm/IR/DataLayout.h"
  14 #include "llvm/IR/Instruction.h"
  15 #include "llvm/IR/Instructions.h"
  16 #include "llvm/IR/IntrinsicInst.h"
  17 #include "llvm/IR/Module.h"
  18 #include "llvm/IR/Operator.h"
  19 #include "llvm/Support/ErrorHandling.h"
  20
  21 using namespace llvm;
  22
  23 #define DEBUG_TYPE "tti"
  24
  25 namespace {
  26 /// \brief No-op implementation of the TTI interface using the utility base
  27 /// classes.
  28 ///
  29 /// This is used when no target specific information is available.
  30 struct NoTTIImpl : TargetTransformInfoImplCRTPBase<NoTTIImpl> {
  31   explicit NoTTIImpl(const DataLayout *DL)
  32       : TargetTransformInfoImplCRTPBase<NoTTIImpl>(DL) {}
  33 };
  34 }
  35
  36 TargetTransformInfo::TargetTransformInfo(const DataLayout *DL)
  37     : TTIImpl(new Model<NoTTIImpl>(NoTTIImpl(DL))) {}
  38
  39 TargetTransformInfo::~TargetTransformInfo() {}
  40
  41 TargetTransformInfo::TargetTransformInfo(TargetTransformInfo &&Arg)
  42     : TTIImpl(std::move(Arg.TTIImpl)) {}
  43
  44 TargetTransformInfo &TargetTransformInfo::operator=(TargetTransformInfo &&RHS) {
  45   TTIImpl = std::move(RHS.TTIImpl);
  46   return *this;
  47 }
  48
  49 unsigned TargetTransformInfo::getOperationCost(unsigned Opcode, Type *Ty,
  50                                                Type *OpTy) const {
  51   return TTIImpl->getOperationCost(Opcode, Ty, OpTy);
  52 }
  53
  54 unsigned TargetTransformInfo::getCallCost(FunctionType *FTy,
  55                                           int NumArgs) const {
  56   return TTIImpl->getCallCost(FTy, NumArgs);
  57 }
  58
  59 unsigned
  60 TargetTransformInfo::getCallCost(const Function *F,
  61                                  ArrayRef<const Value *> Arguments) const {
  62   return TTIImpl->getCallCost(F, Arguments);
  63 }
  64
  65 unsigned
  66 TargetTransformInfo::getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
  67                                       ArrayRef<const Value *> Arguments) const {
  68   return TTIImpl->getIntrinsicCost(IID, RetTy, Arguments);
  69 }
  70
  71 unsigned TargetTransformInfo::getUserCost(const User *U) const {
  72   return TTIImpl->getUserCost(U);
  73 }
  74
  75 bool TargetTransformInfo::hasBranchDivergence() const {
  76   return TTIImpl->hasBranchDivergence();
  77 }
  78
  79 bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
  80   return TTIImpl->isLoweredToCall(F);
  81 }
  82
  83 void TargetTransformInfo::getUnrollingPreferences(
  84     const Function *F, Loop *L, UnrollingPreferences &UP) const {
  85   return TTIImpl->getUnrollingPreferences(F, L, UP);
  86 }
  87
  88 bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
  89   return TTIImpl->isLegalAddImmediate(Imm);
  90 }
  91
  92 bool TargetTransformInfo::isLegalICmpImmediate(int64_t Imm) const {
  93   return TTIImpl->isLegalICmpImmediate(Imm);
  94 }
  95
  96 bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
  97                                                 int64_t BaseOffset,
  98                                                 bool HasBaseReg,
  99                                                 int64_t Scale) const {
 100   return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
 101                                         Scale);
 102 }
 103
 104 bool TargetTransformInfo::isLegalMaskedStore(Type *DataType,
 105                                              int Consecutive) const {
 106   return TTIImpl->isLegalMaskedStore(DataType, Consecutive);
 107 }
 108
 109 bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType,
 110                                             int Consecutive) const {
 111   return TTIImpl->isLegalMaskedLoad(DataType, Consecutive);
 112 }
 113
 114 int TargetTransformInfo::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV,
 115                                               int64_t BaseOffset,
 116                                               bool HasBaseReg,
 117                                               int64_t Scale) const {
 118   return TTIImpl->getScalingFactorCost(Ty, BaseGV, BaseOffset, HasBaseReg,
 119                                        Scale);
 120 }
 121
 122 bool TargetTransformInfo::isTruncateFree(Type *Ty1, Type *Ty2) const {
 123   return TTIImpl->isTruncateFree(Ty1, Ty2);
 124 }
 125
 126 bool TargetTransformInfo::isTypeLegal(Type *Ty) const {
 127   return TTIImpl->isTypeLegal(Ty);
 128 }
 129
 130 unsigned TargetTransformInfo::getJumpBufAlignment() const {
 131   return TTIImpl->getJumpBufAlignment();
 132 }
 133
 134 unsigned TargetTransformInfo::getJumpBufSize() const {
 135   return TTIImpl->getJumpBufSize();
 136 }
 137
 138 bool TargetTransformInfo::shouldBuildLookupTables() const {
 139   return TTIImpl->shouldBuildLookupTables();
 140 }
 141
 142 TargetTransformInfo::PopcntSupportKind
 143 TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
 144   return TTIImpl->getPopcntSupport(IntTyWidthInBit);
 145 }
 146
 147 bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
 148   return TTIImpl->haveFastSqrt(Ty);
 149 }
 150
 151 unsigned TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const {
 152   return TTIImpl->getIntImmCost(Imm, Ty);
 153 }
 154
 155 unsigned TargetTransformInfo::getIntImmCost(unsigned Opcode, unsigned Idx,
 156                                             const APInt &Imm, Type *Ty) const {
 157   return TTIImpl->getIntImmCost(Opcode, Idx, Imm, Ty);
 158 }
 159
 160 unsigned TargetTransformInfo::getIntImmCost(Intrinsic::ID IID, unsigned Idx,
 161                                             const APInt &Imm, Type *Ty) const {
 162   return TTIImpl->getIntImmCost(IID, Idx, Imm, Ty);
 163 }
 164
 165 unsigned TargetTransformInfo::getNumberOfRegisters(bool Vector) const {
 166   return TTIImpl->getNumberOfRegisters(Vector);
 167 }
 168
 169 unsigned TargetTransformInfo::getRegisterBitWidth(bool Vector) const {
 170   return TTIImpl->getRegisterBitWidth(Vector);
 171 }
 172
 173 unsigned TargetTransformInfo::getMaxInterleaveFactor() const {
 174   return TTIImpl->getMaxInterleaveFactor();
 175 }
 176
 177 unsigned TargetTransformInfo::getArithmeticInstrCost(
 178     unsigned Opcode, Type *Ty, OperandValueKind Opd1Info,
 179     OperandValueKind Opd2Info, OperandValueProperties Opd1PropInfo,
 180     OperandValueProperties Opd2PropInfo) const {
 181   return TTIImpl->getArithmeticInstrCost(Opcode, Ty, Opd1Info, Opd2Info,
 182                                          Opd1PropInfo, Opd2PropInfo);
 183 }
 184
 185 unsigned TargetTransformInfo::getShuffleCost(ShuffleKind Kind, Type *Ty,
 186                                              int Index, Type *SubTp) const {
 187   return TTIImpl->getShuffleCost(Kind, Ty, Index, SubTp);
 188 }
 189
 190 unsigned TargetTransformInfo::getCastInstrCost(unsigned Opcode, Type *Dst,
 191                                                Type *Src) const {
 192   return TTIImpl->getCastInstrCost(Opcode, Dst, Src);
 193 }
 194
 195 unsigned TargetTransformInfo::getCFInstrCost(unsigned Opcode) const {
 196   return TTIImpl->getCFInstrCost(Opcode);
 197 }
 198
 199 unsigned TargetTransformInfo::getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
 200                                                  Type *CondTy) const {
 201   return TTIImpl->getCmpSelInstrCost(Opcode, ValTy, CondTy);
 202 }
 203
 204 unsigned TargetTransformInfo::getVectorInstrCost(unsigned Opcode, Type *Val,
 205                                                  unsigned Index) const {
 206   return TTIImpl->getVectorInstrCost(Opcode, Val, Index);
 207 }
 208
 209 unsigned TargetTransformInfo::getMemoryOpCost(unsigned Opcode, Type *Src,
 210                                               unsigned Alignment,
 211                                               unsigned AddressSpace) const {
 212   return TTIImpl->getMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
 213 }
 214
 215 unsigned
 216 TargetTransformInfo::getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
 217                                            unsigned Alignment,
 218                                            unsigned AddressSpace) const {
 219   return TTIImpl->getMaskedMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
 220 }
 221
 222 unsigned
 223 TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
 224                                            ArrayRef<Type *> Tys) const {
 225   return TTIImpl->getIntrinsicInstrCost(ID, RetTy, Tys);
 226 }
 227
 228 unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
 229   return TTIImpl->getNumberOfParts(Tp);
 230 }
 231
 232 unsigned TargetTransformInfo::getAddressComputationCost(Type *Tp,
 233                                                         bool IsComplex) const {
 234   return TTIImpl->getAddressComputationCost(Tp, IsComplex);
 235 }
 236
 237 unsigned TargetTransformInfo::getReductionCost(unsigned Opcode, Type *Ty,
 238                                                bool IsPairwiseForm) const {
 239   return TTIImpl->getReductionCost(Opcode, Ty, IsPairwiseForm);
 240 }
 241
 242 unsigned
 243 TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const {
 244   return TTIImpl->getCostOfKeepingLiveOverCall(Tys);
 245 }
 246
 247 bool TargetTransformInfo::getTgtMemIntrinsic(IntrinsicInst *Inst,
 248                                              MemIntrinsicInfo &Info) const {
 249   return TTIImpl->getTgtMemIntrinsic(Inst, Info);
 250 }
 251
 252 Value *TargetTransformInfo::getOrCreateResultFromMemIntrinsic(
 253     IntrinsicInst *Inst, Type *ExpectedType) const {
 254   return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType);
 255 }
 256
 257 TargetTransformInfo::Concept::~Concept() {}
 258
 259 TargetIRAnalysis::TargetIRAnalysis() : TTICallback(&getDefaultTTI) {}
 260
 261 TargetIRAnalysis::TargetIRAnalysis(
 262     std::function<Result(Function &)> TTICallback)
 263     : TTICallback(TTICallback) {}
 264
 265 TargetIRAnalysis::Result TargetIRAnalysis::run(Function &F) {
 266   return TTICallback(F);
 267 }
 268
 269 char TargetIRAnalysis::PassID;
 270
 271 TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(Function &F) {
 272   return Result(F.getParent()->getDataLayout());
 273 }
 274
 275 // Register the basic pass.
 276 INITIALIZE_PASS(TargetTransformInfoWrapperPass, "tti",
 277                 "Target Transform Information", false, true)
 278 char TargetTransformInfoWrapperPass::ID = 0;
 279
 280 void TargetTransformInfoWrapperPass::anchor() {}
 281
 282 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass()
 283     : ImmutablePass(ID) {
 284   initializeTargetTransformInfoWrapperPassPass(
 285       *PassRegistry::getPassRegistry());
 286 }
 287
 288 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
 289     TargetIRAnalysis TIRA)
 290     : ImmutablePass(ID), TIRA(std::move(TIRA)) {
 291   initializeTargetTransformInfoWrapperPassPass(
 292       *PassRegistry::getPassRegistry());
 293 }
 294
 295 TargetTransformInfo &TargetTransformInfoWrapperPass::getTTI(Function &F) {
 296   TTI = TIRA.run(F);
 297   return *TTI;
 298 }
 299
 300 ImmutablePass *
 301 llvm::createTargetTransformInfoWrapperPass(TargetIRAnalysis TIRA) {
 302   return new TargetTransformInfoWrapperPass(std::move(TIRA));
 303 }