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/CommandLine.h"
20 #include "llvm/Support/ErrorHandling.h"
21 #include <utility>
22 
23 using namespace llvm;
24 
25 #define DEBUG_TYPE "tti"
26 
27 static cl::opt<bool> UseWideMemcpyLoopLowering(
28     "use-wide-memcpy-loop-lowering", cl::init(false),
29     cl::desc("Enables the new wide memcpy loop lowering in Transforms/Utils."),
30     cl::Hidden);
31 
32 namespace {
33 /// \brief No-op implementation of the TTI interface using the utility base
34 /// classes.
35 ///
36 /// This is used when no target specific information is available.
37 struct NoTTIImpl : TargetTransformInfoImplCRTPBase<NoTTIImpl> {
38   explicit NoTTIImpl(const DataLayout &DL)
39       : TargetTransformInfoImplCRTPBase<NoTTIImpl>(DL) {}
40 };
41 }
42 
43 TargetTransformInfo::TargetTransformInfo(const DataLayout &DL)
44     : TTIImpl(new Model<NoTTIImpl>(NoTTIImpl(DL))) {}
45 
46 TargetTransformInfo::~TargetTransformInfo() {}
47 
48 TargetTransformInfo::TargetTransformInfo(TargetTransformInfo &&Arg)
49     : TTIImpl(std::move(Arg.TTIImpl)) {}
50 
51 TargetTransformInfo &TargetTransformInfo::operator=(TargetTransformInfo &&RHS) {
52   TTIImpl = std::move(RHS.TTIImpl);
53   return *this;
54 }
55 
56 int TargetTransformInfo::getOperationCost(unsigned Opcode, Type *Ty,
57                                           Type *OpTy) const {
58   int Cost = TTIImpl->getOperationCost(Opcode, Ty, OpTy);
59   assert(Cost >= 0 && "TTI should not produce negative costs!");
60   return Cost;
61 }
62 
63 int TargetTransformInfo::getCallCost(FunctionType *FTy, int NumArgs) const {
64   int Cost = TTIImpl->getCallCost(FTy, NumArgs);
65   assert(Cost >= 0 && "TTI should not produce negative costs!");
66   return Cost;
67 }
68 
69 int TargetTransformInfo::getCallCost(const Function *F,
70                                      ArrayRef<const Value *> Arguments) const {
71   int Cost = TTIImpl->getCallCost(F, Arguments);
72   assert(Cost >= 0 && "TTI should not produce negative costs!");
73   return Cost;
74 }
75 
76 unsigned TargetTransformInfo::getInliningThresholdMultiplier() const {
77   return TTIImpl->getInliningThresholdMultiplier();
78 }
79 
80 int TargetTransformInfo::getGEPCost(Type *PointeeType, const Value *Ptr,
81                                     ArrayRef<const Value *> Operands) const {
82   return TTIImpl->getGEPCost(PointeeType, Ptr, Operands);
83 }
84 
85 int TargetTransformInfo::getExtCost(const Instruction *I,
86                                     const Value *Src) const {
87   return TTIImpl->getExtCost(I, Src);
88 }
89 
90 int TargetTransformInfo::getIntrinsicCost(
91     Intrinsic::ID IID, Type *RetTy, ArrayRef<const Value *> Arguments) const {
92   int Cost = TTIImpl->getIntrinsicCost(IID, RetTy, Arguments);
93   assert(Cost >= 0 && "TTI should not produce negative costs!");
94   return Cost;
95 }
96 
97 unsigned
98 TargetTransformInfo::getEstimatedNumberOfCaseClusters(const SwitchInst &SI,
99                                                       unsigned &JTSize) const {
100   return TTIImpl->getEstimatedNumberOfCaseClusters(SI, JTSize);
101 }
102 
103 int TargetTransformInfo::getUserCost(const User *U,
104     ArrayRef<const Value *> Operands) const {
105   int Cost = TTIImpl->getUserCost(U, Operands);
106   assert(Cost >= 0 && "TTI should not produce negative costs!");
107   return Cost;
108 }
109 
110 bool TargetTransformInfo::hasBranchDivergence() const {
111   return TTIImpl->hasBranchDivergence();
112 }
113 
114 bool TargetTransformInfo::isSourceOfDivergence(const Value *V) const {
115   return TTIImpl->isSourceOfDivergence(V);
116 }
117 
118 bool llvm::TargetTransformInfo::isAlwaysUniform(const Value *V) const {
119   return TTIImpl->isAlwaysUniform(V);
120 }
121 
122 unsigned TargetTransformInfo::getFlatAddressSpace() const {
123   return TTIImpl->getFlatAddressSpace();
124 }
125 
126 bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
127   return TTIImpl->isLoweredToCall(F);
128 }
129 
130 void TargetTransformInfo::getUnrollingPreferences(
131     Loop *L, ScalarEvolution &SE, UnrollingPreferences &UP) const {
132   return TTIImpl->getUnrollingPreferences(L, SE, UP);
133 }
134 
135 bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
136   return TTIImpl->isLegalAddImmediate(Imm);
137 }
138 
139 bool TargetTransformInfo::isLegalICmpImmediate(int64_t Imm) const {
140   return TTIImpl->isLegalICmpImmediate(Imm);
141 }
142 
143 bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
144                                                 int64_t BaseOffset,
145                                                 bool HasBaseReg,
146                                                 int64_t Scale,
147                                                 unsigned AddrSpace,
148                                                 Instruction *I) const {
149   return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
150                                         Scale, AddrSpace, I);
151 }
152 
153 bool TargetTransformInfo::isLSRCostLess(LSRCost &C1, LSRCost &C2) const {
154   return TTIImpl->isLSRCostLess(C1, C2);
155 }
156 
157 bool TargetTransformInfo::isLegalMaskedStore(Type *DataType) const {
158   return TTIImpl->isLegalMaskedStore(DataType);
159 }
160 
161 bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType) const {
162   return TTIImpl->isLegalMaskedLoad(DataType);
163 }
164 
165 bool TargetTransformInfo::isLegalMaskedGather(Type *DataType) const {
166   return TTIImpl->isLegalMaskedGather(DataType);
167 }
168 
169 bool TargetTransformInfo::isLegalMaskedScatter(Type *DataType) const {
170   return TTIImpl->isLegalMaskedScatter(DataType);
171 }
172 
173 bool TargetTransformInfo::prefersVectorizedAddressing() const {
174   return TTIImpl->prefersVectorizedAddressing();
175 }
176 
177 int TargetTransformInfo::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV,
178                                               int64_t BaseOffset,
179                                               bool HasBaseReg,
180                                               int64_t Scale,
181                                               unsigned AddrSpace) const {
182   int Cost = TTIImpl->getScalingFactorCost(Ty, BaseGV, BaseOffset, HasBaseReg,
183                                            Scale, AddrSpace);
184   assert(Cost >= 0 && "TTI should not produce negative costs!");
185   return Cost;
186 }
187 
188 bool TargetTransformInfo::LSRWithInstrQueries() const {
189   return TTIImpl->LSRWithInstrQueries();
190 }
191 
192 bool TargetTransformInfo::isFoldableMemAccessOffset(Instruction *I,
193                                                     int64_t Offset) const {
194   return TTIImpl->isFoldableMemAccessOffset(I, Offset);
195 }
196 
197 bool TargetTransformInfo::isTruncateFree(Type *Ty1, Type *Ty2) const {
198   return TTIImpl->isTruncateFree(Ty1, Ty2);
199 }
200 
201 bool TargetTransformInfo::isProfitableToHoist(Instruction *I) const {
202   return TTIImpl->isProfitableToHoist(I);
203 }
204 
205 bool TargetTransformInfo::isTypeLegal(Type *Ty) const {
206   return TTIImpl->isTypeLegal(Ty);
207 }
208 
209 unsigned TargetTransformInfo::getJumpBufAlignment() const {
210   return TTIImpl->getJumpBufAlignment();
211 }
212 
213 unsigned TargetTransformInfo::getJumpBufSize() const {
214   return TTIImpl->getJumpBufSize();
215 }
216 
217 bool TargetTransformInfo::shouldBuildLookupTables() const {
218   return TTIImpl->shouldBuildLookupTables();
219 }
220 bool TargetTransformInfo::shouldBuildLookupTablesForConstant(Constant *C) const {
221   return TTIImpl->shouldBuildLookupTablesForConstant(C);
222 }
223 
224 unsigned TargetTransformInfo::
225 getScalarizationOverhead(Type *Ty, bool Insert, bool Extract) const {
226   return TTIImpl->getScalarizationOverhead(Ty, Insert, Extract);
227 }
228 
229 unsigned TargetTransformInfo::
230 getOperandsScalarizationOverhead(ArrayRef<const Value *> Args,
231                                  unsigned VF) const {
232   return TTIImpl->getOperandsScalarizationOverhead(Args, VF);
233 }
234 
235 bool TargetTransformInfo::supportsEfficientVectorElementLoadStore() const {
236   return TTIImpl->supportsEfficientVectorElementLoadStore();
237 }
238 
239 bool TargetTransformInfo::enableAggressiveInterleaving(bool LoopHasReductions) const {
240   return TTIImpl->enableAggressiveInterleaving(LoopHasReductions);
241 }
242 
243 bool TargetTransformInfo::expandMemCmp(Instruction *I, unsigned &MaxLoadSize) const {
244   return TTIImpl->expandMemCmp(I, MaxLoadSize);
245 }
246 
247 bool TargetTransformInfo::enableInterleavedAccessVectorization() const {
248   return TTIImpl->enableInterleavedAccessVectorization();
249 }
250 
251 bool TargetTransformInfo::isFPVectorizationPotentiallyUnsafe() const {
252   return TTIImpl->isFPVectorizationPotentiallyUnsafe();
253 }
254 
255 bool TargetTransformInfo::allowsMisalignedMemoryAccesses(LLVMContext &Context,
256                                                          unsigned BitWidth,
257                                                          unsigned AddressSpace,
258                                                          unsigned Alignment,
259                                                          bool *Fast) const {
260   return TTIImpl->allowsMisalignedMemoryAccesses(Context, BitWidth, AddressSpace,
261                                                  Alignment, Fast);
262 }
263 
264 TargetTransformInfo::PopcntSupportKind
265 TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
266   return TTIImpl->getPopcntSupport(IntTyWidthInBit);
267 }
268 
269 bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
270   return TTIImpl->haveFastSqrt(Ty);
271 }
272 
273 int TargetTransformInfo::getFPOpCost(Type *Ty) const {
274   int Cost = TTIImpl->getFPOpCost(Ty);
275   assert(Cost >= 0 && "TTI should not produce negative costs!");
276   return Cost;
277 }
278 
279 int TargetTransformInfo::getIntImmCodeSizeCost(unsigned Opcode, unsigned Idx,
280                                                const APInt &Imm,
281                                                Type *Ty) const {
282   int Cost = TTIImpl->getIntImmCodeSizeCost(Opcode, Idx, Imm, Ty);
283   assert(Cost >= 0 && "TTI should not produce negative costs!");
284   return Cost;
285 }
286 
287 int TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const {
288   int Cost = TTIImpl->getIntImmCost(Imm, Ty);
289   assert(Cost >= 0 && "TTI should not produce negative costs!");
290   return Cost;
291 }
292 
293 int TargetTransformInfo::getIntImmCost(unsigned Opcode, unsigned Idx,
294                                        const APInt &Imm, Type *Ty) const {
295   int Cost = TTIImpl->getIntImmCost(Opcode, Idx, Imm, Ty);
296   assert(Cost >= 0 && "TTI should not produce negative costs!");
297   return Cost;
298 }
299 
300 int TargetTransformInfo::getIntImmCost(Intrinsic::ID IID, unsigned Idx,
301                                        const APInt &Imm, Type *Ty) const {
302   int Cost = TTIImpl->getIntImmCost(IID, Idx, Imm, Ty);
303   assert(Cost >= 0 && "TTI should not produce negative costs!");
304   return Cost;
305 }
306 
307 unsigned TargetTransformInfo::getNumberOfRegisters(bool Vector) const {
308   return TTIImpl->getNumberOfRegisters(Vector);
309 }
310 
311 unsigned TargetTransformInfo::getRegisterBitWidth(bool Vector) const {
312   return TTIImpl->getRegisterBitWidth(Vector);
313 }
314 
315 unsigned TargetTransformInfo::getMinVectorRegisterBitWidth() const {
316   return TTIImpl->getMinVectorRegisterBitWidth();
317 }
318 
319 bool TargetTransformInfo::shouldConsiderAddressTypePromotion(
320     const Instruction &I, bool &AllowPromotionWithoutCommonHeader) const {
321   return TTIImpl->shouldConsiderAddressTypePromotion(
322       I, AllowPromotionWithoutCommonHeader);
323 }
324 
325 unsigned TargetTransformInfo::getCacheLineSize() const {
326   return TTIImpl->getCacheLineSize();
327 }
328 
329 unsigned TargetTransformInfo::getPrefetchDistance() const {
330   return TTIImpl->getPrefetchDistance();
331 }
332 
333 unsigned TargetTransformInfo::getMinPrefetchStride() const {
334   return TTIImpl->getMinPrefetchStride();
335 }
336 
337 unsigned TargetTransformInfo::getMaxPrefetchIterationsAhead() const {
338   return TTIImpl->getMaxPrefetchIterationsAhead();
339 }
340 
341 unsigned TargetTransformInfo::getMaxInterleaveFactor(unsigned VF) const {
342   return TTIImpl->getMaxInterleaveFactor(VF);
343 }
344 
345 int TargetTransformInfo::getArithmeticInstrCost(
346     unsigned Opcode, Type *Ty, OperandValueKind Opd1Info,
347     OperandValueKind Opd2Info, OperandValueProperties Opd1PropInfo,
348     OperandValueProperties Opd2PropInfo,
349     ArrayRef<const Value *> Args) const {
350   int Cost = TTIImpl->getArithmeticInstrCost(Opcode, Ty, Opd1Info, Opd2Info,
351                                              Opd1PropInfo, Opd2PropInfo, Args);
352   assert(Cost >= 0 && "TTI should not produce negative costs!");
353   return Cost;
354 }
355 
356 int TargetTransformInfo::getShuffleCost(ShuffleKind Kind, Type *Ty, int Index,
357                                         Type *SubTp) const {
358   int Cost = TTIImpl->getShuffleCost(Kind, Ty, Index, SubTp);
359   assert(Cost >= 0 && "TTI should not produce negative costs!");
360   return Cost;
361 }
362 
363 int TargetTransformInfo::getCastInstrCost(unsigned Opcode, Type *Dst,
364                                  Type *Src, const Instruction *I) const {
365   assert ((I == nullptr || I->getOpcode() == Opcode) &&
366           "Opcode should reflect passed instruction.");
367   int Cost = TTIImpl->getCastInstrCost(Opcode, Dst, Src, I);
368   assert(Cost >= 0 && "TTI should not produce negative costs!");
369   return Cost;
370 }
371 
372 int TargetTransformInfo::getExtractWithExtendCost(unsigned Opcode, Type *Dst,
373                                                   VectorType *VecTy,
374                                                   unsigned Index) const {
375   int Cost = TTIImpl->getExtractWithExtendCost(Opcode, Dst, VecTy, Index);
376   assert(Cost >= 0 && "TTI should not produce negative costs!");
377   return Cost;
378 }
379 
380 int TargetTransformInfo::getCFInstrCost(unsigned Opcode) const {
381   int Cost = TTIImpl->getCFInstrCost(Opcode);
382   assert(Cost >= 0 && "TTI should not produce negative costs!");
383   return Cost;
384 }
385 
386 int TargetTransformInfo::getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
387                                  Type *CondTy, const Instruction *I) const {
388   assert ((I == nullptr || I->getOpcode() == Opcode) &&
389           "Opcode should reflect passed instruction.");
390   int Cost = TTIImpl->getCmpSelInstrCost(Opcode, ValTy, CondTy, I);
391   assert(Cost >= 0 && "TTI should not produce negative costs!");
392   return Cost;
393 }
394 
395 int TargetTransformInfo::getVectorInstrCost(unsigned Opcode, Type *Val,
396                                             unsigned Index) const {
397   int Cost = TTIImpl->getVectorInstrCost(Opcode, Val, Index);
398   assert(Cost >= 0 && "TTI should not produce negative costs!");
399   return Cost;
400 }
401 
402 int TargetTransformInfo::getMemoryOpCost(unsigned Opcode, Type *Src,
403                                          unsigned Alignment,
404                                          unsigned AddressSpace,
405                                          const Instruction *I) const {
406   assert ((I == nullptr || I->getOpcode() == Opcode) &&
407           "Opcode should reflect passed instruction.");
408   int Cost = TTIImpl->getMemoryOpCost(Opcode, Src, Alignment, AddressSpace, I);
409   assert(Cost >= 0 && "TTI should not produce negative costs!");
410   return Cost;
411 }
412 
413 int TargetTransformInfo::getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
414                                                unsigned Alignment,
415                                                unsigned AddressSpace) const {
416   int Cost =
417       TTIImpl->getMaskedMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
418   assert(Cost >= 0 && "TTI should not produce negative costs!");
419   return Cost;
420 }
421 
422 int TargetTransformInfo::getGatherScatterOpCost(unsigned Opcode, Type *DataTy,
423                                                 Value *Ptr, bool VariableMask,
424                                                 unsigned Alignment) const {
425   int Cost = TTIImpl->getGatherScatterOpCost(Opcode, DataTy, Ptr, VariableMask,
426                                              Alignment);
427   assert(Cost >= 0 && "TTI should not produce negative costs!");
428   return Cost;
429 }
430 
431 int TargetTransformInfo::getInterleavedMemoryOpCost(
432     unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef<unsigned> Indices,
433     unsigned Alignment, unsigned AddressSpace) const {
434   int Cost = TTIImpl->getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices,
435                                                  Alignment, AddressSpace);
436   assert(Cost >= 0 && "TTI should not produce negative costs!");
437   return Cost;
438 }
439 
440 int TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
441                                     ArrayRef<Type *> Tys, FastMathFlags FMF,
442                                     unsigned ScalarizationCostPassed) const {
443   int Cost = TTIImpl->getIntrinsicInstrCost(ID, RetTy, Tys, FMF,
444                                             ScalarizationCostPassed);
445   assert(Cost >= 0 && "TTI should not produce negative costs!");
446   return Cost;
447 }
448 
449 int TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
450            ArrayRef<Value *> Args, FastMathFlags FMF, unsigned VF) const {
451   int Cost = TTIImpl->getIntrinsicInstrCost(ID, RetTy, Args, FMF, VF);
452   assert(Cost >= 0 && "TTI should not produce negative costs!");
453   return Cost;
454 }
455 
456 int TargetTransformInfo::getCallInstrCost(Function *F, Type *RetTy,
457                                           ArrayRef<Type *> Tys) const {
458   int Cost = TTIImpl->getCallInstrCost(F, RetTy, Tys);
459   assert(Cost >= 0 && "TTI should not produce negative costs!");
460   return Cost;
461 }
462 
463 unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
464   return TTIImpl->getNumberOfParts(Tp);
465 }
466 
467 int TargetTransformInfo::getAddressComputationCost(Type *Tp,
468                                                    ScalarEvolution *SE,
469                                                    const SCEV *Ptr) const {
470   int Cost = TTIImpl->getAddressComputationCost(Tp, SE, Ptr);
471   assert(Cost >= 0 && "TTI should not produce negative costs!");
472   return Cost;
473 }
474 
475 int TargetTransformInfo::getReductionCost(unsigned Opcode, Type *Ty,
476                                           bool IsPairwiseForm) const {
477   int Cost = TTIImpl->getReductionCost(Opcode, Ty, IsPairwiseForm);
478   assert(Cost >= 0 && "TTI should not produce negative costs!");
479   return Cost;
480 }
481 
482 unsigned
483 TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const {
484   return TTIImpl->getCostOfKeepingLiveOverCall(Tys);
485 }
486 
487 bool TargetTransformInfo::getTgtMemIntrinsic(IntrinsicInst *Inst,
488                                              MemIntrinsicInfo &Info) const {
489   return TTIImpl->getTgtMemIntrinsic(Inst, Info);
490 }
491 
492 unsigned TargetTransformInfo::getAtomicMemIntrinsicMaxElementSize() const {
493   return TTIImpl->getAtomicMemIntrinsicMaxElementSize();
494 }
495 
496 Value *TargetTransformInfo::getOrCreateResultFromMemIntrinsic(
497     IntrinsicInst *Inst, Type *ExpectedType) const {
498   return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType);
499 }
500 
501 Type *TargetTransformInfo::getMemcpyLoopLoweringType(LLVMContext &Context,
502                                                      Value *Length,
503                                                      unsigned SrcAlign,
504                                                      unsigned DestAlign) const {
505   return TTIImpl->getMemcpyLoopLoweringType(Context, Length, SrcAlign,
506                                             DestAlign);
507 }
508 
509 void TargetTransformInfo::getMemcpyLoopResidualLoweringType(
510     SmallVectorImpl<Type *> &OpsOut, LLVMContext &Context,
511     unsigned RemainingBytes, unsigned SrcAlign, unsigned DestAlign) const {
512   TTIImpl->getMemcpyLoopResidualLoweringType(OpsOut, Context, RemainingBytes,
513                                              SrcAlign, DestAlign);
514 }
515 
516 bool TargetTransformInfo::useWideIRMemcpyLoopLowering() const {
517   return UseWideMemcpyLoopLowering;
518 }
519 
520 bool TargetTransformInfo::areInlineCompatible(const Function *Caller,
521                                               const Function *Callee) const {
522   return TTIImpl->areInlineCompatible(Caller, Callee);
523 }
524 
525 unsigned TargetTransformInfo::getLoadStoreVecRegBitWidth(unsigned AS) const {
526   return TTIImpl->getLoadStoreVecRegBitWidth(AS);
527 }
528 
529 bool TargetTransformInfo::isLegalToVectorizeLoad(LoadInst *LI) const {
530   return TTIImpl->isLegalToVectorizeLoad(LI);
531 }
532 
533 bool TargetTransformInfo::isLegalToVectorizeStore(StoreInst *SI) const {
534   return TTIImpl->isLegalToVectorizeStore(SI);
535 }
536 
537 bool TargetTransformInfo::isLegalToVectorizeLoadChain(
538     unsigned ChainSizeInBytes, unsigned Alignment, unsigned AddrSpace) const {
539   return TTIImpl->isLegalToVectorizeLoadChain(ChainSizeInBytes, Alignment,
540                                               AddrSpace);
541 }
542 
543 bool TargetTransformInfo::isLegalToVectorizeStoreChain(
544     unsigned ChainSizeInBytes, unsigned Alignment, unsigned AddrSpace) const {
545   return TTIImpl->isLegalToVectorizeStoreChain(ChainSizeInBytes, Alignment,
546                                                AddrSpace);
547 }
548 
549 unsigned TargetTransformInfo::getLoadVectorFactor(unsigned VF,
550                                                   unsigned LoadSize,
551                                                   unsigned ChainSizeInBytes,
552                                                   VectorType *VecTy) const {
553   return TTIImpl->getLoadVectorFactor(VF, LoadSize, ChainSizeInBytes, VecTy);
554 }
555 
556 unsigned TargetTransformInfo::getStoreVectorFactor(unsigned VF,
557                                                    unsigned StoreSize,
558                                                    unsigned ChainSizeInBytes,
559                                                    VectorType *VecTy) const {
560   return TTIImpl->getStoreVectorFactor(VF, StoreSize, ChainSizeInBytes, VecTy);
561 }
562 
563 bool TargetTransformInfo::useReductionIntrinsic(unsigned Opcode,
564                                                 Type *Ty, ReductionFlags Flags) const {
565   return TTIImpl->useReductionIntrinsic(Opcode, Ty, Flags);
566 }
567 
568 bool TargetTransformInfo::shouldExpandReduction(const IntrinsicInst *II) const {
569   return TTIImpl->shouldExpandReduction(II);
570 }
571 
572 TargetTransformInfo::Concept::~Concept() {}
573 
574 TargetIRAnalysis::TargetIRAnalysis() : TTICallback(&getDefaultTTI) {}
575 
576 TargetIRAnalysis::TargetIRAnalysis(
577     std::function<Result(const Function &)> TTICallback)
578     : TTICallback(std::move(TTICallback)) {}
579 
580 TargetIRAnalysis::Result TargetIRAnalysis::run(const Function &F,
581                                                FunctionAnalysisManager &) {
582   return TTICallback(F);
583 }
584 
585 AnalysisKey TargetIRAnalysis::Key;
586 
587 TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(const Function &F) {
588   return Result(F.getParent()->getDataLayout());
589 }
590 
591 // Register the basic pass.
592 INITIALIZE_PASS(TargetTransformInfoWrapperPass, "tti",
593                 "Target Transform Information", false, true)
594 char TargetTransformInfoWrapperPass::ID = 0;
595 
596 void TargetTransformInfoWrapperPass::anchor() {}
597 
598 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass()
599     : ImmutablePass(ID) {
600   initializeTargetTransformInfoWrapperPassPass(
601       *PassRegistry::getPassRegistry());
602 }
603 
604 TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
605     TargetIRAnalysis TIRA)
606     : ImmutablePass(ID), TIRA(std::move(TIRA)) {
607   initializeTargetTransformInfoWrapperPassPass(
608       *PassRegistry::getPassRegistry());
609 }
610 
611 TargetTransformInfo &TargetTransformInfoWrapperPass::getTTI(const Function &F) {
612   FunctionAnalysisManager DummyFAM;
613   TTI = TIRA.run(F, DummyFAM);
614   return *TTI;
615 }
616 
617 ImmutablePass *
618 llvm::createTargetTransformInfoWrapperPass(TargetIRAnalysis TIRA) {
619   return new TargetTransformInfoWrapperPass(std::move(TIRA));
620 }
621