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::isSourceOfDivergence(const Value *V) const {
  80   return TTIImpl->isSourceOfDivergence(V);
  81 }
  82
  83 bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
  84   return TTIImpl->isLoweredToCall(F);
  85 }
  86
  87 void TargetTransformInfo::getUnrollingPreferences(
  88     Loop *L, UnrollingPreferences &UP) const {
  89   return TTIImpl->getUnrollingPreferences(L, UP);
  90 }
  91
  92 bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
  93   return TTIImpl->isLegalAddImmediate(Imm);
  94 }
  95
  96 bool TargetTransformInfo::isLegalICmpImmediate(int64_t Imm) const {
  97   return TTIImpl->isLegalICmpImmediate(Imm);
  98 }
  99
 100 bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
 101                                                 int64_t BaseOffset,
 102                                                 bool HasBaseReg,
 103                                                 int64_t Scale) const {
 104   return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
 105                                         Scale);
 106 }
 107
 108 bool TargetTransformInfo::isLegalMaskedStore(Type *DataType,
 109                                              int Consecutive) const {
 110   return TTIImpl->isLegalMaskedStore(DataType, Consecutive);
 111 }
 112
 113 bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType,
 114                                             int Consecutive) const {
 115   return TTIImpl->isLegalMaskedLoad(DataType, Consecutive);
 116 }
 117
 118 int TargetTransformInfo::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV,
 119                                               int64_t BaseOffset,
 120                                               bool HasBaseReg,
 121                                               int64_t Scale) const {
 122   return TTIImpl->getScalingFactorCost(Ty, BaseGV, BaseOffset, HasBaseReg,
 123                                        Scale);
 124 }
 125
 126 bool TargetTransformInfo::isTruncateFree(Type *Ty1, Type *Ty2) const {
 127   return TTIImpl->isTruncateFree(Ty1, Ty2);
 128 }
 129
 130 bool TargetTransformInfo::isProfitableToHoist(Instruction *I) const {
 131   return TTIImpl->isProfitableToHoist(I);
 132 }
 133
 134 bool TargetTransformInfo::isTypeLegal(Type *Ty) const {
 135   return TTIImpl->isTypeLegal(Ty);
 136 }
 137
 138 unsigned TargetTransformInfo::getJumpBufAlignment() const {
 139   return TTIImpl->getJumpBufAlignment();
 140 }
 141
 142 unsigned TargetTransformInfo::getJumpBufSize() const {
 143   return TTIImpl->getJumpBufSize();
 144 }
 145
 146 bool TargetTransformInfo::shouldBuildLookupTables() const {
 147   return TTIImpl->shouldBuildLookupTables();
 148 }
 149
 150 bool TargetTransformInfo::enableAggressiveInterleaving(bool LoopHasReductions) const {
 151   return TTIImpl->enableAggressiveInterleaving(LoopHasReductions);
 152 }
 153
 154 TargetTransformInfo::PopcntSupportKind
 155 TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
 156   return TTIImpl->getPopcntSupport(IntTyWidthInBit);
 157 }
 158
 159 bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
 160   return TTIImpl->haveFastSqrt(Ty);
 161 }
 162
 163 unsigned TargetTransformInfo::getFPOpCost(Type *Ty) const {
 164   return TTIImpl->getFPOpCost(Ty);
 165 }
 166
 167 unsigned TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const {
 168   return TTIImpl->getIntImmCost(Imm, Ty);
 169 }
 170
 171 unsigned TargetTransformInfo::getIntImmCost(unsigned Opcode, unsigned Idx,
 172                                             const APInt &Imm, Type *Ty) const {
 173   return TTIImpl->getIntImmCost(Opcode, Idx, Imm, Ty);
 174 }
 175
 176 unsigned TargetTransformInfo::getIntImmCost(Intrinsic::ID IID, unsigned Idx,
 177                                             const APInt &Imm, Type *Ty) const {
 178   return TTIImpl->getIntImmCost(IID, Idx, Imm, Ty);
 179 }
 180
 181 unsigned TargetTransformInfo::getNumberOfRegisters(bool Vector) const {
 182   return TTIImpl->getNumberOfRegisters(Vector);
 183 }
 184
 185 unsigned TargetTransformInfo::getRegisterBitWidth(bool Vector) const {
 186   return TTIImpl->getRegisterBitWidth(Vector);
 187 }
 188
 189 unsigned TargetTransformInfo::getMaxInterleaveFactor() const {
 190   return TTIImpl->getMaxInterleaveFactor();
 191 }
 192
 193 unsigned TargetTransformInfo::getArithmeticInstrCost(
 194     unsigned Opcode, Type *Ty, OperandValueKind Opd1Info,
 195     OperandValueKind Opd2Info, OperandValueProperties Opd1PropInfo,
 196     OperandValueProperties Opd2PropInfo) const {
 197   return TTIImpl->getArithmeticInstrCost(Opcode, Ty, Opd1Info, Opd2Info,
 198                                          Opd1PropInfo, Opd2PropInfo);
 199 }
 200
 201 unsigned TargetTransformInfo::getShuffleCost(ShuffleKind Kind, Type *Ty,
 202                                              int Index, Type *SubTp) const {
 203   return TTIImpl->getShuffleCost(Kind, Ty, Index, SubTp);
 204 }
 205
 206 unsigned TargetTransformInfo::getCastInstrCost(unsigned Opcode, Type *Dst,
 207                                                Type *Src) const {
 208   return TTIImpl->getCastInstrCost(Opcode, Dst, Src);
 209 }
 210
 211 unsigned TargetTransformInfo::getCFInstrCost(unsigned Opcode) const {
 212   return TTIImpl->getCFInstrCost(Opcode);
 213 }
 214
 215 unsigned TargetTransformInfo::getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
 216                                                  Type *CondTy) const {
 217   return TTIImpl->getCmpSelInstrCost(Opcode, ValTy, CondTy);
 218 }
 219
 220 unsigned TargetTransformInfo::getVectorInstrCost(unsigned Opcode, Type *Val,
 221                                                  unsigned Index) const {
 222   return TTIImpl->getVectorInstrCost(Opcode, Val, Index);
 223 }
 224
 225 unsigned TargetTransformInfo::getMemoryOpCost(unsigned Opcode, Type *Src,
 226                                               unsigned Alignment,
 227                                               unsigned AddressSpace) const {
 228   return TTIImpl->getMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
 229 }
 230
 231 unsigned
 232 TargetTransformInfo::getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
 233                                            unsigned Alignment,
 234                                            unsigned AddressSpace) const {
 235   return TTIImpl->getMaskedMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
 236 }
 237
 238 unsigned
 239 TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
 240                                            ArrayRef<Type *> Tys) const {
 241   return TTIImpl->getIntrinsicInstrCost(ID, RetTy, Tys);
 242 }
 243
 244 unsigned TargetTransformInfo::getCallInstrCost(Function *F, Type *RetTy,
 245                                                ArrayRef<Type *> Tys) const {
 246   return TTIImpl->getCallInstrCost(F, RetTy, Tys);
 247 }
 248
 249 unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
 250   return TTIImpl->getNumberOfParts(Tp);
 251 }
 252
 253 unsigned TargetTransformInfo::getAddressComputationCost(Type *Tp,
 254                                                         bool IsComplex) const {
 255   return TTIImpl->getAddressComputationCost(Tp, IsComplex);
 256 }
 257
 258 unsigned TargetTransformInfo::getReductionCost(unsigned Opcode, Type *Ty,
 259                                                bool IsPairwiseForm) const {
 260   return TTIImpl->getReductionCost(Opcode, Ty, IsPairwiseForm);
 261 }
 262
 263 unsigned
 264 TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const {
 265   return TTIImpl->getCostOfKeepingLiveOverCall(Tys);
 266 }
 267
 268 bool TargetTransformInfo::getTgtMemIntrinsic(IntrinsicInst *Inst,
 269                                              MemIntrinsicInfo &Info) const {
 270   return TTIImpl->getTgtMemIntrinsic(Inst, Info);
 271 }
 272
 273 Value *TargetTransformInfo::getOrCreateResultFromMemIntrinsic(
 274     IntrinsicInst *Inst, Type *ExpectedType) const {
 275   return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType);
 276 }
 277
 278 TargetTransformInfo::Concept::~Concept() {}
 279
 280 TargetIRAnalysis::TargetIRAnalysis() : TTICallback(&getDefaultTTI) {}
 281
 282 TargetIRAnalysis::TargetIRAnalysis(
 283     std::function<Result(Function &)> TTICallback)
 284     : TTICallback(TTICallback) {}
 285
 286 TargetIRAnalysis::Result TargetIRAnalysis::run(Function &F) {
 287   return TTICallback(F);
 288 }
 289
 290 char TargetIRAnalysis::PassID;
 291
 292 TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(Function &F) {
 293   return Result(&F.getParent()->getDataLayout());
 294 }
 295
 296 // Register the basic pass.
 297 INITIALIZE_PASS(TargetTransformInfoWrapperPass, "tti",
 298                 "Target Transform Information", false, true)
 299 char TargetTransformInfoWrapperPass::ID = 0;
 300
 301 void TargetTransformInfoWrapperPass::anchor() {}
 302
 303 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass()
 304     : ImmutablePass(ID) {
 305   initializeTargetTransformInfoWrapperPassPass(
 306       *PassRegistry::getPassRegistry());
 307 }
 308
 309 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
 310     TargetIRAnalysis TIRA)
 311     : ImmutablePass(ID), TIRA(std::move(TIRA)) {
 312   initializeTargetTransformInfoWrapperPassPass(
 313       *PassRegistry::getPassRegistry());
 314 }
 315
 316 TargetTransformInfo &TargetTransformInfoWrapperPass::getTTI(Function &F) {
 317   TTI = TIRA.run(F);
 318   return *TTI;
 319 }
 320
 321 ImmutablePass *
 322 llvm::createTargetTransformInfoWrapperPass(TargetIRAnalysis TIRA) {
 323   return new TargetTransformInfoWrapperPass(std::move(TIRA));
 324 }