1 //===- llvm/Analysis/TargetTransformInfo.cpp ------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
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"
24 #define DEBUG_TYPE "tti"
27 /// \brief No-op implementation of the TTI interface using the utility base
30 /// This is used when no target specific information is available.
31 struct NoTTIImpl : TargetTransformInfoImplCRTPBase<NoTTIImpl> {
32 explicit NoTTIImpl(const DataLayout &DL)
33 : TargetTransformInfoImplCRTPBase<NoTTIImpl>(DL) {}
37 TargetTransformInfo::TargetTransformInfo(const DataLayout &DL)
38 : TTIImpl(new Model<NoTTIImpl>(NoTTIImpl(DL))) {}
40 TargetTransformInfo::~TargetTransformInfo() {}
42 TargetTransformInfo::TargetTransformInfo(TargetTransformInfo &&Arg)
43 : TTIImpl(std::move(Arg.TTIImpl)) {}
45 TargetTransformInfo &TargetTransformInfo::operator=(TargetTransformInfo &&RHS) {
46 TTIImpl = std::move(RHS.TTIImpl);
50 int TargetTransformInfo::getOperationCost(unsigned Opcode, Type *Ty,
52 int Cost = TTIImpl->getOperationCost(Opcode, Ty, OpTy);
53 assert(Cost >= 0 && "TTI should not produce negative costs!");
57 int TargetTransformInfo::getCallCost(FunctionType *FTy, int NumArgs) const {
58 int Cost = TTIImpl->getCallCost(FTy, NumArgs);
59 assert(Cost >= 0 && "TTI should not produce negative costs!");
63 int TargetTransformInfo::getCallCost(const Function *F,
64 ArrayRef<const Value *> Arguments) const {
65 int Cost = TTIImpl->getCallCost(F, Arguments);
66 assert(Cost >= 0 && "TTI should not produce negative costs!");
70 unsigned TargetTransformInfo::getInliningThresholdMultiplier() const {
71 return TTIImpl->getInliningThresholdMultiplier();
74 int TargetTransformInfo::getGEPCost(Type *PointeeType, const Value *Ptr,
75 ArrayRef<const Value *> Operands) const {
76 return TTIImpl->getGEPCost(PointeeType, Ptr, Operands);
79 int TargetTransformInfo::getIntrinsicCost(
80 Intrinsic::ID IID, Type *RetTy, ArrayRef<const Value *> Arguments) const {
81 int Cost = TTIImpl->getIntrinsicCost(IID, RetTy, Arguments);
82 assert(Cost >= 0 && "TTI should not produce negative costs!");
86 int TargetTransformInfo::getUserCost(const User *U) const {
87 int Cost = TTIImpl->getUserCost(U);
88 assert(Cost >= 0 && "TTI should not produce negative costs!");
92 bool TargetTransformInfo::hasBranchDivergence() const {
93 return TTIImpl->hasBranchDivergence();
96 bool TargetTransformInfo::isSourceOfDivergence(const Value *V) const {
97 return TTIImpl->isSourceOfDivergence(V);
100 bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
101 return TTIImpl->isLoweredToCall(F);
104 void TargetTransformInfo::getUnrollingPreferences(
105 Loop *L, UnrollingPreferences &UP) const {
106 return TTIImpl->getUnrollingPreferences(L, UP);
109 bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
110 return TTIImpl->isLegalAddImmediate(Imm);
113 bool TargetTransformInfo::isLegalICmpImmediate(int64_t Imm) const {
114 return TTIImpl->isLegalICmpImmediate(Imm);
117 bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
121 unsigned AddrSpace) const {
122 return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
126 bool TargetTransformInfo::isLegalMaskedStore(Type *DataType) const {
127 return TTIImpl->isLegalMaskedStore(DataType);
130 bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType) const {
131 return TTIImpl->isLegalMaskedLoad(DataType);
134 bool TargetTransformInfo::isLegalMaskedGather(Type *DataType) const {
135 return TTIImpl->isLegalMaskedGather(DataType);
138 bool TargetTransformInfo::isLegalMaskedScatter(Type *DataType) const {
139 return TTIImpl->isLegalMaskedGather(DataType);
142 int TargetTransformInfo::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV,
146 unsigned AddrSpace) const {
147 int Cost = TTIImpl->getScalingFactorCost(Ty, BaseGV, BaseOffset, HasBaseReg,
149 assert(Cost >= 0 && "TTI should not produce negative costs!");
153 bool TargetTransformInfo::isTruncateFree(Type *Ty1, Type *Ty2) const {
154 return TTIImpl->isTruncateFree(Ty1, Ty2);
157 bool TargetTransformInfo::isProfitableToHoist(Instruction *I) const {
158 return TTIImpl->isProfitableToHoist(I);
161 bool TargetTransformInfo::isTypeLegal(Type *Ty) const {
162 return TTIImpl->isTypeLegal(Ty);
165 unsigned TargetTransformInfo::getJumpBufAlignment() const {
166 return TTIImpl->getJumpBufAlignment();
169 unsigned TargetTransformInfo::getJumpBufSize() const {
170 return TTIImpl->getJumpBufSize();
173 bool TargetTransformInfo::shouldBuildLookupTables() const {
174 return TTIImpl->shouldBuildLookupTables();
177 bool TargetTransformInfo::enableAggressiveInterleaving(bool LoopHasReductions) const {
178 return TTIImpl->enableAggressiveInterleaving(LoopHasReductions);
181 bool TargetTransformInfo::enableInterleavedAccessVectorization() const {
182 return TTIImpl->enableInterleavedAccessVectorization();
185 bool TargetTransformInfo::isFPVectorizationPotentiallyUnsafe() const {
186 return TTIImpl->isFPVectorizationPotentiallyUnsafe();
189 bool TargetTransformInfo::allowsMisalignedMemoryAccesses(unsigned BitWidth,
190 unsigned AddressSpace,
193 return TTIImpl->allowsMisalignedMemoryAccesses(BitWidth, AddressSpace,
197 TargetTransformInfo::PopcntSupportKind
198 TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
199 return TTIImpl->getPopcntSupport(IntTyWidthInBit);
202 bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
203 return TTIImpl->haveFastSqrt(Ty);
206 int TargetTransformInfo::getFPOpCost(Type *Ty) const {
207 int Cost = TTIImpl->getFPOpCost(Ty);
208 assert(Cost >= 0 && "TTI should not produce negative costs!");
212 int TargetTransformInfo::getIntImmCodeSizeCost(unsigned Opcode, unsigned Idx,
215 int Cost = TTIImpl->getIntImmCodeSizeCost(Opcode, Idx, Imm, Ty);
216 assert(Cost >= 0 && "TTI should not produce negative costs!");
220 int TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const {
221 int Cost = TTIImpl->getIntImmCost(Imm, Ty);
222 assert(Cost >= 0 && "TTI should not produce negative costs!");
226 int TargetTransformInfo::getIntImmCost(unsigned Opcode, unsigned Idx,
227 const APInt &Imm, Type *Ty) const {
228 int Cost = TTIImpl->getIntImmCost(Opcode, Idx, Imm, Ty);
229 assert(Cost >= 0 && "TTI should not produce negative costs!");
233 int TargetTransformInfo::getIntImmCost(Intrinsic::ID IID, unsigned Idx,
234 const APInt &Imm, Type *Ty) const {
235 int Cost = TTIImpl->getIntImmCost(IID, Idx, Imm, Ty);
236 assert(Cost >= 0 && "TTI should not produce negative costs!");
240 unsigned TargetTransformInfo::getNumberOfRegisters(bool Vector) const {
241 return TTIImpl->getNumberOfRegisters(Vector);
244 unsigned TargetTransformInfo::getRegisterBitWidth(bool Vector) const {
245 return TTIImpl->getRegisterBitWidth(Vector);
248 unsigned TargetTransformInfo::getLoadStoreVecRegBitWidth(unsigned AS) const {
249 return TTIImpl->getLoadStoreVecRegBitWidth(AS);
252 unsigned TargetTransformInfo::getCacheLineSize() const {
253 return TTIImpl->getCacheLineSize();
256 unsigned TargetTransformInfo::getPrefetchDistance() const {
257 return TTIImpl->getPrefetchDistance();
260 unsigned TargetTransformInfo::getMinPrefetchStride() const {
261 return TTIImpl->getMinPrefetchStride();
264 unsigned TargetTransformInfo::getMaxPrefetchIterationsAhead() const {
265 return TTIImpl->getMaxPrefetchIterationsAhead();
268 unsigned TargetTransformInfo::getMaxInterleaveFactor(unsigned VF) const {
269 return TTIImpl->getMaxInterleaveFactor(VF);
272 int TargetTransformInfo::getArithmeticInstrCost(
273 unsigned Opcode, Type *Ty, OperandValueKind Opd1Info,
274 OperandValueKind Opd2Info, OperandValueProperties Opd1PropInfo,
275 OperandValueProperties Opd2PropInfo) const {
276 int Cost = TTIImpl->getArithmeticInstrCost(Opcode, Ty, Opd1Info, Opd2Info,
277 Opd1PropInfo, Opd2PropInfo);
278 assert(Cost >= 0 && "TTI should not produce negative costs!");
282 int TargetTransformInfo::getShuffleCost(ShuffleKind Kind, Type *Ty, int Index,
284 int Cost = TTIImpl->getShuffleCost(Kind, Ty, Index, SubTp);
285 assert(Cost >= 0 && "TTI should not produce negative costs!");
289 int TargetTransformInfo::getCastInstrCost(unsigned Opcode, Type *Dst,
291 int Cost = TTIImpl->getCastInstrCost(Opcode, Dst, Src);
292 assert(Cost >= 0 && "TTI should not produce negative costs!");
296 int TargetTransformInfo::getExtractWithExtendCost(unsigned Opcode, Type *Dst,
298 unsigned Index) const {
299 int Cost = TTIImpl->getExtractWithExtendCost(Opcode, Dst, VecTy, Index);
300 assert(Cost >= 0 && "TTI should not produce negative costs!");
304 int TargetTransformInfo::getCFInstrCost(unsigned Opcode) const {
305 int Cost = TTIImpl->getCFInstrCost(Opcode);
306 assert(Cost >= 0 && "TTI should not produce negative costs!");
310 int TargetTransformInfo::getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
311 Type *CondTy) const {
312 int Cost = TTIImpl->getCmpSelInstrCost(Opcode, ValTy, CondTy);
313 assert(Cost >= 0 && "TTI should not produce negative costs!");
317 int TargetTransformInfo::getVectorInstrCost(unsigned Opcode, Type *Val,
318 unsigned Index) const {
319 int Cost = TTIImpl->getVectorInstrCost(Opcode, Val, Index);
320 assert(Cost >= 0 && "TTI should not produce negative costs!");
324 int TargetTransformInfo::getMemoryOpCost(unsigned Opcode, Type *Src,
326 unsigned AddressSpace) const {
327 int Cost = TTIImpl->getMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
328 assert(Cost >= 0 && "TTI should not produce negative costs!");
332 int TargetTransformInfo::getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
334 unsigned AddressSpace) const {
336 TTIImpl->getMaskedMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
337 assert(Cost >= 0 && "TTI should not produce negative costs!");
341 int TargetTransformInfo::getGatherScatterOpCost(unsigned Opcode, Type *DataTy,
342 Value *Ptr, bool VariableMask,
343 unsigned Alignment) const {
344 int Cost = TTIImpl->getGatherScatterOpCost(Opcode, DataTy, Ptr, VariableMask,
346 assert(Cost >= 0 && "TTI should not produce negative costs!");
350 int TargetTransformInfo::getInterleavedMemoryOpCost(
351 unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef<unsigned> Indices,
352 unsigned Alignment, unsigned AddressSpace) const {
353 int Cost = TTIImpl->getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices,
354 Alignment, AddressSpace);
355 assert(Cost >= 0 && "TTI should not produce negative costs!");
359 int TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
360 ArrayRef<Type *> Tys,
361 FastMathFlags FMF) const {
362 int Cost = TTIImpl->getIntrinsicInstrCost(ID, RetTy, Tys, FMF);
363 assert(Cost >= 0 && "TTI should not produce negative costs!");
367 int TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
368 ArrayRef<Value *> Args,
369 FastMathFlags FMF) const {
370 int Cost = TTIImpl->getIntrinsicInstrCost(ID, RetTy, Args, FMF);
371 assert(Cost >= 0 && "TTI should not produce negative costs!");
375 int TargetTransformInfo::getCallInstrCost(Function *F, Type *RetTy,
376 ArrayRef<Type *> Tys) const {
377 int Cost = TTIImpl->getCallInstrCost(F, RetTy, Tys);
378 assert(Cost >= 0 && "TTI should not produce negative costs!");
382 unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
383 return TTIImpl->getNumberOfParts(Tp);
386 int TargetTransformInfo::getAddressComputationCost(Type *Tp,
387 bool IsComplex) const {
388 int Cost = TTIImpl->getAddressComputationCost(Tp, IsComplex);
389 assert(Cost >= 0 && "TTI should not produce negative costs!");
393 int TargetTransformInfo::getReductionCost(unsigned Opcode, Type *Ty,
394 bool IsPairwiseForm) const {
395 int Cost = TTIImpl->getReductionCost(Opcode, Ty, IsPairwiseForm);
396 assert(Cost >= 0 && "TTI should not produce negative costs!");
401 TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const {
402 return TTIImpl->getCostOfKeepingLiveOverCall(Tys);
405 bool TargetTransformInfo::getTgtMemIntrinsic(IntrinsicInst *Inst,
406 MemIntrinsicInfo &Info) const {
407 return TTIImpl->getTgtMemIntrinsic(Inst, Info);
410 Value *TargetTransformInfo::getOrCreateResultFromMemIntrinsic(
411 IntrinsicInst *Inst, Type *ExpectedType) const {
412 return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType);
415 bool TargetTransformInfo::areInlineCompatible(const Function *Caller,
416 const Function *Callee) const {
417 return TTIImpl->areInlineCompatible(Caller, Callee);
420 TargetTransformInfo::Concept::~Concept() {}
422 TargetIRAnalysis::TargetIRAnalysis() : TTICallback(&getDefaultTTI) {}
424 TargetIRAnalysis::TargetIRAnalysis(
425 std::function<Result(const Function &)> TTICallback)
426 : TTICallback(std::move(TTICallback)) {}
428 TargetIRAnalysis::Result TargetIRAnalysis::run(const Function &F,
429 AnalysisManager<Function> &) {
430 return TTICallback(F);
433 char TargetIRAnalysis::PassID;
435 TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(const Function &F) {
436 return Result(F.getParent()->getDataLayout());
439 // Register the basic pass.
440 INITIALIZE_PASS(TargetTransformInfoWrapperPass, "tti",
441 "Target Transform Information", false, true)
442 char TargetTransformInfoWrapperPass::ID = 0;
444 void TargetTransformInfoWrapperPass::anchor() {}
446 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass()
447 : ImmutablePass(ID) {
448 initializeTargetTransformInfoWrapperPassPass(
449 *PassRegistry::getPassRegistry());
452 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
453 TargetIRAnalysis TIRA)
454 : ImmutablePass(ID), TIRA(std::move(TIRA)) {
455 initializeTargetTransformInfoWrapperPassPass(
456 *PassRegistry::getPassRegistry());
459 TargetTransformInfo &TargetTransformInfoWrapperPass::getTTI(const Function &F) {
460 AnalysisManager<Function> DummyFAM;
461 TTI = TIRA.run(F, DummyFAM);
466 llvm::createTargetTransformInfoWrapperPass(TargetIRAnalysis TIRA) {
467 return new TargetTransformInfoWrapperPass(std::move(TIRA));