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