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