TargetTransformInfo.cpp

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//===- llvm/Analysis/TargetTransformInfo.cpp ------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/ADT/Sequence.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/CFG.h"
#include "llvm/Analysis/LoopIterator.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/TargetTransformInfoImpl.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/CommandLine.h"
#include <optional>
#include <utility>
 
using namespace llvm;
using namespace PatternMatch;
 
#define DEBUG_TYPE "tti"
 
static cl::opt<unsigned> CacheLineSize(
    "cache-line-size", cl::init(0), cl::Hidden,
    cl::desc("Use this to override the target cache line size when "
             "specified by the user."));
 
static cl::opt<unsigned> MinPageSize(
    "min-page-size", cl::init(0), cl::Hidden,
    cl::desc("Use this to override the target's minimum page size."));
 
static cl::opt<unsigned> PredictableBranchThreshold(
    "predictable-branch-threshold", cl::init(99), cl::Hidden,
    cl::desc(
        "Use this to override the target's predictable branch threshold (%)."));
 
namespace {
/// No-op implementation of the TTI interface using the utility base
/// classes.
///
/// This is used when no target specific information is available.
struct NoTTIImpl : TargetTransformInfoImplCRTPBase<NoTTIImpl> {
  explicit NoTTIImpl(const DataLayout &DL)
      : TargetTransformInfoImplCRTPBase<NoTTIImpl>(DL) {}
};
} // namespace
 
TargetTransformInfo::TargetTransformInfo(
    std::unique_ptr<const TargetTransformInfoImplBase> Impl)
    : TTIImpl(std::move(Impl)) {}
 
bool HardwareLoopInfo::canAnalyze(LoopInfo &LI) {
  // If the loop has irreducible control flow, it can not be converted to
  // Hardware loop.
  LoopBlocksRPO RPOT(L);
  RPOT.perform(&LI);
  if (containsIrreducibleCFG<const BasicBlock *>(RPOT, LI))
    return false;
  return true;
}
 
IntrinsicCostAttributes::IntrinsicCostAttributes(
    Intrinsic::ID Id, const CallBase &CI, InstructionCost ScalarizationCost,
    bool TypeBasedOnly)
    : II(dyn_cast<IntrinsicInst>(&CI)), RetTy(CI.getType()), IID(Id),
      ScalarizationCost(ScalarizationCost) {
 
  if (const auto *FPMO = dyn_cast<FPMathOperator>(&CI))
    FMF = FPMO->getFastMathFlags();
 
  if (!TypeBasedOnly)
    Arguments.insert(Arguments.begin(), CI.arg_begin(), CI.arg_end());
  for (const Value *Arg : CI.args())
    ParamTys.push_back(Arg->getType());
}
 
IntrinsicCostAttributes::IntrinsicCostAttributes(Intrinsic::ID Id, Type *RTy,
                                                 ArrayRef<Type *> Tys,
                                                 FastMathFlags Flags,
                                                 const IntrinsicInst *I,
                                                 InstructionCost ScalarCost)
    : II(I), RetTy(RTy), IID(Id), FMF(Flags), ScalarizationCost(ScalarCost) {
  ParamTys.insert(ParamTys.begin(), Tys.begin(), Tys.end());
}
 
IntrinsicCostAttributes::IntrinsicCostAttributes(Intrinsic::ID Id, Type *Ty,
                                                 ArrayRef<const Value *> Args)
    : RetTy(Ty), IID(Id) {
 
  Arguments.insert(Arguments.begin(), Args.begin(), Args.end());
  ParamTys.reserve(Arguments.size());
  for (const Value *Argument : Arguments)
    ParamTys.push_back(Argument->getType());
}
 
IntrinsicCostAttributes::IntrinsicCostAttributes(
    Intrinsic::ID Id, Type *RTy, ArrayRef<const Value *> Args,
    ArrayRef<Type *> Tys, FastMathFlags Flags, const IntrinsicInst *I,
    InstructionCost ScalarCost, VectorInstrContext VIC)
    : II(I), RetTy(RTy), IID(Id), FMF(Flags), ScalarizationCost(ScalarCost),
      VIC(VIC) {
  ParamTys.insert(ParamTys.begin(), Tys.begin(), Tys.end());
  Arguments.insert(Arguments.begin(), Args.begin(), Args.end());
}
 
HardwareLoopInfo::HardwareLoopInfo(Loop *L) : L(L) {
  // Match default options:
  // - hardware-loop-counter-bitwidth = 32
  // - hardware-loop-decrement = 1
  CountType = Type::getInt32Ty(L->getHeader()->getContext());
  LoopDecrement = ConstantInt::get(CountType, 1);
}
 
bool HardwareLoopInfo::isHardwareLoopCandidate(ScalarEvolution &SE,
                                               LoopInfo &LI, DominatorTree &DT,
                                               bool ForceNestedLoop,
                                               bool ForceHardwareLoopPHI) {
  SmallVector<BasicBlock *, 4> ExitingBlocks;
  L->getExitingBlocks(ExitingBlocks);
 
  for (BasicBlock *BB : ExitingBlocks) {
    // If we pass the updated counter back through a phi, we need to know
    // which latch the updated value will be coming from.
    if (!L->isLoopLatch(BB)) {
      if (ForceHardwareLoopPHI || CounterInReg)
        continue;
    }
 
    const SCEV *EC = SE.getExitCount(L, BB);
    if (isa<SCEVCouldNotCompute>(EC))
      continue;
    if (const SCEVConstant *ConstEC = dyn_cast<SCEVConstant>(EC)) {
      if (ConstEC->getValue()->isZero())
        continue;
    } else if (!SE.isLoopInvariant(EC, L))
      continue;
 
    if (SE.getTypeSizeInBits(EC->getType()) > CountType->getBitWidth())
      continue;
 
    // If this exiting block is contained in a nested loop, it is not eligible
    // for insertion of the branch-and-decrement since the inner loop would
    // end up messing up the value in the CTR.
    if (!IsNestingLegal && LI.getLoopFor(BB) != L && !ForceNestedLoop)
      continue;
 
    // We now have a loop-invariant count of loop iterations (which is not the
    // constant zero) for which we know that this loop will not exit via this
    // existing block.
 
    // We need to make sure that this block will run on every loop iteration.
    // For this to be true, we must dominate all blocks with backedges. Such
    // blocks are in-loop predecessors to the header block.
    bool NotAlways = false;
    for (BasicBlock *Pred : predecessors(L->getHeader())) {
      if (!L->contains(Pred))
        continue;
 
      if (!DT.dominates(BB, Pred)) {
        NotAlways = true;
        break;
      }
    }
 
    if (NotAlways)
      continue;
 
    // Make sure this blocks ends with a conditional branch.
    if (CondBrInst *BI = dyn_cast<CondBrInst>(BB->getTerminator()))
      ExitBranch = BI;
    else
      continue;
 
    // Note that this block may not be the loop latch block, even if the loop
    // has a latch block.
    ExitBlock = BB;
    ExitCount = EC;
    break;
  }
 
  if (!ExitBlock)
    return false;
  return true;
}
 
TargetTransformInfo::TargetTransformInfo(const DataLayout &DL)
    : TTIImpl(std::make_unique<NoTTIImpl>(DL)) {}
 
TargetTransformInfo::~TargetTransformInfo() = default;
 
TargetTransformInfo::TargetTransformInfo(TargetTransformInfo &&Arg)
    : TTIImpl(std::move(Arg.TTIImpl)) {}
 
TargetTransformInfo &TargetTransformInfo::operator=(TargetTransformInfo &&RHS) {
  TTIImpl = std::move(RHS.TTIImpl);
  return *this;
}
 
unsigned TargetTransformInfo::getInliningThresholdMultiplier() const {
  return TTIImpl->getInliningThresholdMultiplier();
}
 
unsigned
TargetTransformInfo::getInliningCostBenefitAnalysisSavingsMultiplier() const {
  return TTIImpl->getInliningCostBenefitAnalysisSavingsMultiplier();
}
 
unsigned
TargetTransformInfo::getInliningCostBenefitAnalysisProfitableMultiplier()
    const {
  return TTIImpl->getInliningCostBenefitAnalysisProfitableMultiplier();
}
 
int TargetTransformInfo::getInliningLastCallToStaticBonus() const {
  return TTIImpl->getInliningLastCallToStaticBonus();
}
 
unsigned
TargetTransformInfo::adjustInliningThreshold(const CallBase *CB) const {
  return TTIImpl->adjustInliningThreshold(CB);
}
 
unsigned TargetTransformInfo::getCallerAllocaCost(const CallBase *CB,
                                                  const AllocaInst *AI) const {
  return TTIImpl->getCallerAllocaCost(CB, AI);
}
 
int TargetTransformInfo::getInlinerVectorBonusPercent() const {
  return TTIImpl->getInlinerVectorBonusPercent();
}
 
InstructionCost TargetTransformInfo::getGEPCost(
    Type *PointeeType, const Value *Ptr, ArrayRef<const Value *> Operands,
    TTI::TargetCostKind CostKind, Type *AccessType) const {
  return TTIImpl->getGEPCost(PointeeType, Ptr, Operands, CostKind, AccessType);
}
 
InstructionCost TargetTransformInfo::getPointersChainCost(
    ArrayRef<const Value *> Ptrs, const Value *Base,
    const TTI::PointersChainInfo &Info, Type *AccessTy,
    TTI::TargetCostKind CostKind) const {
  assert((Base || !Info.isSameBase()) &&
         "If pointers have same base address it has to be provided.");
  return TTIImpl->getPointersChainCost(Ptrs, Base, Info, AccessTy, CostKind);
}
 
unsigned TargetTransformInfo::getEstimatedNumberOfCaseClusters(
    const SwitchInst &SI, unsigned &JTSize, ProfileSummaryInfo *PSI,
    BlockFrequencyInfo *BFI) const {
  return TTIImpl->getEstimatedNumberOfCaseClusters(SI, JTSize, PSI, BFI);
}
 
InstructionCost
TargetTransformInfo::getInstructionCost(const User *U,
                                        ArrayRef<const Value *> Operands,
                                        enum TargetCostKind CostKind) const {
  InstructionCost Cost = TTIImpl->getInstructionCost(U, Operands, CostKind);
  assert((CostKind == TTI::TCK_RecipThroughput || Cost >= 0) &&
         "TTI should not produce negative costs!");
  return Cost;
}
 
BranchProbability TargetTransformInfo::getPredictableBranchThreshold() const {
  return PredictableBranchThreshold.getNumOccurrences() > 0
             ? BranchProbability(PredictableBranchThreshold, 100)
             : TTIImpl->getPredictableBranchThreshold();
}
 
InstructionCost TargetTransformInfo::getBranchMispredictPenalty() const {
  return TTIImpl->getBranchMispredictPenalty();
}
 
bool TargetTransformInfo::hasBranchDivergence(const Function *F) const {
  return TTIImpl->hasBranchDivergence(F);
}
 
ValueUniformity
llvm::TargetTransformInfo::getValueUniformity(const Value *V) const {
  ValueUniformity VU = TTIImpl->getValueUniformity(V);
  if (const auto *Call = dyn_cast<CallBase>(V)) {
    if (VU == ValueUniformity::NeverUniform &&
        Call->hasFnAttr(Attribute::NoDivergenceSource))
      return ValueUniformity::Default;
  }
  return VU;
}
 
bool llvm::TargetTransformInfo::isValidAddrSpaceCast(unsigned FromAS,
                                                     unsigned ToAS) const {
  return TTIImpl->isValidAddrSpaceCast(FromAS, ToAS);
}
 
bool llvm::TargetTransformInfo::addrspacesMayAlias(unsigned FromAS,
                                                   unsigned ToAS) const {
  return TTIImpl->addrspacesMayAlias(FromAS, ToAS);
}
 
unsigned TargetTransformInfo::getFlatAddressSpace() const {
  return TTIImpl->getFlatAddressSpace();
}
 
unsigned TargetTransformInfo::getAddressSpaceJoin(unsigned AS1,
                                                  unsigned AS2) const {
  assert(AS1 != AS2 && "Expected distinct address spaces");
  return TTIImpl->getAddressSpaceJoin(AS1, AS2);
}
 
bool TargetTransformInfo::collectFlatAddressOperands(
    SmallVectorImpl<int> &OpIndexes, Intrinsic::ID IID) const {
  return TTIImpl->collectFlatAddressOperands(OpIndexes, IID);
}
 
bool TargetTransformInfo::isNoopAddrSpaceCast(unsigned FromAS,
                                              unsigned ToAS) const {
  return TTIImpl->isNoopAddrSpaceCast(FromAS, ToAS);
}
 
std::pair<KnownBits, KnownBits>
TargetTransformInfo::computeKnownBitsAddrSpaceCast(unsigned ToAS,
                                                   const Value &PtrOp) const {
  return TTIImpl->computeKnownBitsAddrSpaceCast(ToAS, PtrOp);
}
 
KnownBits TargetTransformInfo::computeKnownBitsAddrSpaceCast(
    unsigned FromAS, unsigned ToAS, const KnownBits &FromPtrBits) const {
  return TTIImpl->computeKnownBitsAddrSpaceCast(FromAS, ToAS, FromPtrBits);
}
 
APInt TargetTransformInfo::getAddrSpaceCastPreservedPtrMask(
    unsigned SrcAS, unsigned DstAS) const {
  return TTIImpl->getAddrSpaceCastPreservedPtrMask(SrcAS, DstAS);
}
 
bool TargetTransformInfo::canHaveNonUndefGlobalInitializerInAddressSpace(
    unsigned AS) const {
  return TTIImpl->canHaveNonUndefGlobalInitializerInAddressSpace(AS);
}
 
unsigned TargetTransformInfo::getAssumedAddrSpace(const Value *V) const {
  return TTIImpl->getAssumedAddrSpace(V);
}
 
std::pair<const Value *, unsigned>
TargetTransformInfo::getPredicatedAddrSpace(const Value *V) const {
  return TTIImpl->getPredicatedAddrSpace(V);
}
 
Value *TargetTransformInfo::rewriteIntrinsicWithAddressSpace(
    IntrinsicInst *II, Value *OldV, Value *NewV) const {
  return TTIImpl->rewriteIntrinsicWithAddressSpace(II, OldV, NewV);
}
 
bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
  return TTIImpl->isLoweredToCall(F);
}
 
bool TargetTransformInfo::isHardwareLoopProfitable(
    Loop *L, ScalarEvolution &SE, AssumptionCache &AC,
    TargetLibraryInfo *LibInfo, HardwareLoopInfo &HWLoopInfo) const {
  return TTIImpl->isHardwareLoopProfitable(L, SE, AC, LibInfo, HWLoopInfo);
}
 
unsigned TargetTransformInfo::getEpilogueVectorizationMinVF() const {
  return TTIImpl->getEpilogueVectorizationMinVF();
}
 
bool TargetTransformInfo::preferTailFoldingOverEpilogue(
    TailFoldingInfo *TFI) const {
  return TTIImpl->preferTailFoldingOverEpilogue(TFI);
}
 
TailFoldingStyle TargetTransformInfo::getPreferredTailFoldingStyle() const {
  return TTIImpl->getPreferredTailFoldingStyle();
}
 
std::optional<Instruction *>
TargetTransformInfo::instCombineIntrinsic(InstCombiner &IC,
                                          IntrinsicInst &II) const {
  return TTIImpl->instCombineIntrinsic(IC, II);
}
 
std::optional<Value *> TargetTransformInfo::simplifyDemandedUseBitsIntrinsic(
    InstCombiner &IC, IntrinsicInst &II, APInt DemandedMask, KnownBits &Known,
    bool &KnownBitsComputed) const {
  return TTIImpl->simplifyDemandedUseBitsIntrinsic(IC, II, DemandedMask, Known,
                                                   KnownBitsComputed);
}
 
std::optional<Value *> TargetTransformInfo::simplifyDemandedVectorEltsIntrinsic(
    InstCombiner &IC, IntrinsicInst &II, APInt DemandedElts, APInt &UndefElts,
    APInt &UndefElts2, APInt &UndefElts3,
    std::function<void(Instruction *, unsigned, APInt, APInt &)>
        SimplifyAndSetOp) const {
  return TTIImpl->simplifyDemandedVectorEltsIntrinsic(
      IC, II, DemandedElts, UndefElts, UndefElts2, UndefElts3,
      SimplifyAndSetOp);
}
 
void TargetTransformInfo::getUnrollingPreferences(
    Loop *L, ScalarEvolution &SE, UnrollingPreferences &UP,
    OptimizationRemarkEmitter *ORE) const {
  return TTIImpl->getUnrollingPreferences(L, SE, UP, ORE);
}
 
void TargetTransformInfo::getPeelingPreferences(Loop *L, ScalarEvolution &SE,
                                                PeelingPreferences &PP) const {
  return TTIImpl->getPeelingPreferences(L, SE, PP);
}
 
bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
  return TTIImpl->isLegalAddImmediate(Imm);
}
 
bool TargetTransformInfo::isLegalAddScalableImmediate(int64_t Imm) const {
  return TTIImpl->isLegalAddScalableImmediate(Imm);
}
 
bool TargetTransformInfo::isLegalICmpImmediate(int64_t Imm) const {
  return TTIImpl->isLegalICmpImmediate(Imm);
}
 
bool TargetTransformInfo::preferLoopExitWithEqualityComparison(
    const ICmpInst &Cond, const APInt &PostIncExitValue) const {
  return TTIImpl->preferLoopExitWithEqualityComparison(Cond, PostIncExitValue);
}
 
bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
                                                int64_t BaseOffset,
                                                bool HasBaseReg, int64_t Scale,
                                                unsigned AddrSpace,
                                                Instruction *I,
                                                int64_t ScalableOffset) const {
  return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
                                        Scale, AddrSpace, I, ScalableOffset);
}
 
bool TargetTransformInfo::isLSRCostLess(const LSRCost &C1,
                                        const LSRCost &C2) const {
  return TTIImpl->isLSRCostLess(C1, C2);
}
 
bool TargetTransformInfo::isNumRegsMajorCostOfLSR() const {
  return TTIImpl->isNumRegsMajorCostOfLSR();
}
 
bool TargetTransformInfo::shouldDropLSRSolutionIfLessProfitable() const {
  return TTIImpl->shouldDropLSRSolutionIfLessProfitable();
}
 
bool TargetTransformInfo::isProfitableLSRChainElement(Instruction *I) const {
  return TTIImpl->isProfitableLSRChainElement(I);
}
 
bool TargetTransformInfo::canMacroFuseCmp() const {
  return TTIImpl->canMacroFuseCmp();
}
 
bool TargetTransformInfo::canSaveCmp(Loop *L, CondBrInst **BI,
                                     ScalarEvolution *SE, LoopInfo *LI,
                                     DominatorTree *DT, AssumptionCache *AC,
                                     TargetLibraryInfo *LibInfo) const {
  return TTIImpl->canSaveCmp(L, BI, SE, LI, DT, AC, LibInfo);
}
 
TTI::AddressingModeKind
TargetTransformInfo::getPreferredAddressingMode(const Loop *L,
                                                ScalarEvolution *SE) const {
  return TTIImpl->getPreferredAddressingMode(L, SE);
}
 
bool TargetTransformInfo::isLegalMaskedStore(Type *DataType, Align Alignment,
                                             unsigned AddressSpace,
                                             TTI::MaskKind MaskKind) const {
  return TTIImpl->isLegalMaskedStore(DataType, Alignment, AddressSpace,
                                     MaskKind);
}
 
bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType, Align Alignment,
                                            unsigned AddressSpace,
                                            TTI::MaskKind MaskKind) const {
  return TTIImpl->isLegalMaskedLoad(DataType, Alignment, AddressSpace,
                                    MaskKind);
}
 
bool TargetTransformInfo::isLegalSpeculativeLoad(Type *DataType,
                                                 unsigned AddressSpace) const {
  return TTIImpl->isLegalSpeculativeLoad(DataType, AddressSpace);
}
 
bool TargetTransformInfo::isLegalNTStore(Type *DataType,
                                         Align Alignment) const {
  return TTIImpl->isLegalNTStore(DataType, Alignment);
}
 
bool TargetTransformInfo::isLegalNTLoad(Type *DataType, Align Alignment) const {
  return TTIImpl->isLegalNTLoad(DataType, Alignment);
}
 
bool TargetTransformInfo::isLegalBroadcastLoad(Type *ElementTy,
                                               ElementCount NumElements) const {
  return TTIImpl->isLegalBroadcastLoad(ElementTy, NumElements);
}
 
bool TargetTransformInfo::isLegalMaskedGather(Type *DataType,
                                              Align Alignment) const {
  return TTIImpl->isLegalMaskedGather(DataType, Alignment);
}
 
bool TargetTransformInfo::isLegalAltInstr(
    VectorType *VecTy, unsigned Opcode0, unsigned Opcode1,
    const SmallBitVector &OpcodeMask, ArrayRef<const Value *> Scalars) const {
  return TTIImpl->isLegalAltInstr(VecTy, Opcode0, Opcode1, OpcodeMask, Scalars);
}
 
bool TargetTransformInfo::isLegalMaskedScatter(Type *DataType,
                                               Align Alignment) const {
  return TTIImpl->isLegalMaskedScatter(DataType, Alignment);
}
 
bool TargetTransformInfo::forceScalarizeMaskedGather(VectorType *DataType,
                                                     Align Alignment) const {
  return TTIImpl->forceScalarizeMaskedGather(DataType, Alignment);
}
 
bool TargetTransformInfo::forceScalarizeMaskedScatter(VectorType *DataType,
                                                      Align Alignment) const {
  return TTIImpl->forceScalarizeMaskedScatter(DataType, Alignment);
}
 
bool TargetTransformInfo::isLegalMaskedCompressStore(Type *DataType,
                                                     Align Alignment) const {
  return TTIImpl->isLegalMaskedCompressStore(DataType, Alignment);
}
 
bool TargetTransformInfo::isLegalMaskedExpandLoad(Type *DataType,
                                                  Align Alignment) const {
  return TTIImpl->isLegalMaskedExpandLoad(DataType, Alignment);
}
 
bool TargetTransformInfo::isLegalStridedLoadStore(Type *DataType,
                                                  Align Alignment) const {
  return TTIImpl->isLegalStridedLoadStore(DataType, Alignment);
}
 
bool TargetTransformInfo::hasMultiVectorLoadStore(
    unsigned NumVectors, TTI::MaskSource Mask, VectorType *VectorTy,
    bool IsStore, std::optional<Instruction::CastOps> CastHint) const {
  return TTIImpl->hasMultiVectorLoadStore(NumVectors, Mask, VectorTy, IsStore,
                                          CastHint);
}
 
bool TargetTransformInfo::isLegalInterleavedAccessType(
    VectorType *VTy, unsigned Factor, Align Alignment,
    unsigned AddrSpace) const {
  return TTIImpl->isLegalInterleavedAccessType(VTy, Factor, Alignment,
                                               AddrSpace);
}
 
bool TargetTransformInfo::isLegalMaskedVectorHistogram(Type *AddrType,
                                                       Type *DataType) const {
  return TTIImpl->isLegalMaskedVectorHistogram(AddrType, DataType);
}
 
bool TargetTransformInfo::enableOrderedReductions() const {
  return TTIImpl->enableOrderedReductions();
}
 
bool TargetTransformInfo::hasDivRemOp(Type *DataType, bool IsSigned) const {
  return TTIImpl->hasDivRemOp(DataType, IsSigned);
}
 
bool TargetTransformInfo::hasVolatileVariant(Instruction *I,
                                             unsigned AddrSpace) const {
  return TTIImpl->hasVolatileVariant(I, AddrSpace);
}
 
bool TargetTransformInfo::prefersVectorizedAddressing() const {
  return TTIImpl->prefersVectorizedAddressing();
}
 
InstructionCost TargetTransformInfo::getScalingFactorCost(
    Type *Ty, GlobalValue *BaseGV, StackOffset BaseOffset, bool HasBaseReg,
    int64_t Scale, unsigned AddrSpace) const {
  InstructionCost Cost = TTIImpl->getScalingFactorCost(
      Ty, BaseGV, BaseOffset, HasBaseReg, Scale, AddrSpace);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
bool TargetTransformInfo::LSRWithInstrQueries() const {
  return TTIImpl->LSRWithInstrQueries();
}
 
bool TargetTransformInfo::isTruncateFree(Type *Ty1, Type *Ty2) const {
  return TTIImpl->isTruncateFree(Ty1, Ty2);
}
 
bool TargetTransformInfo::isProfitableToHoist(Instruction *I) const {
  return TTIImpl->isProfitableToHoist(I);
}
 
bool TargetTransformInfo::useAA() const { return TTIImpl->useAA(); }
 
bool TargetTransformInfo::isTypeLegal(Type *Ty) const {
  return TTIImpl->isTypeLegal(Ty);
}
 
unsigned TargetTransformInfo::getRegUsageForType(Type *Ty) const {
  return TTIImpl->getRegUsageForType(Ty);
}
 
bool TargetTransformInfo::shouldBuildLookupTables() const {
  return TTIImpl->shouldBuildLookupTables();
}
 
bool TargetTransformInfo::shouldBuildLookupTablesForConstant(
    Constant *C) const {
  return TTIImpl->shouldBuildLookupTablesForConstant(C);
}
 
unsigned TargetTransformInfo::getMinimumLookupTableEntryBitWidth() const {
  return TTIImpl->getMinimumLookupTableEntryBitWidth();
}
 
bool TargetTransformInfo::shouldBuildRelLookupTables() const {
  return TTIImpl->shouldBuildRelLookupTables();
}
 
bool TargetTransformInfo::useColdCCForColdCall(Function &F) const {
  return TTIImpl->useColdCCForColdCall(F);
}
 
bool TargetTransformInfo::useFastCCForInternalCall(Function &F) const {
  return TTIImpl->useFastCCForInternalCall(F);
}
 
bool TargetTransformInfo::isTargetIntrinsicWithScalarOpAtArg(
    Intrinsic::ID ID, unsigned ScalarOpdIdx) const {
  return TTIImpl->isTargetIntrinsicWithScalarOpAtArg(ID, ScalarOpdIdx);
}
 
bool TargetTransformInfo::isTargetIntrinsicWithOverloadTypeAtArg(
    Intrinsic::ID ID, int OpdIdx) const {
  return TTIImpl->isTargetIntrinsicWithOverloadTypeAtArg(ID, OpdIdx);
}
 
bool TargetTransformInfo::isTargetIntrinsicWithStructReturnOverloadAtField(
    Intrinsic::ID ID, int RetIdx) const {
  return TTIImpl->isTargetIntrinsicWithStructReturnOverloadAtField(ID, RetIdx);
}
 
TargetTransformInfo::VectorInstrContext
TargetTransformInfo::combineVectorInstrContexts(
    TargetTransformInfo::VectorInstrContext Ctx1,
    TargetTransformInfo::VectorInstrContext Ctx2) {
  return Ctx1 == Ctx2 ? Ctx1 : TargetTransformInfo::VectorInstrContext::None;
}
 
TargetTransformInfo::VectorInstrContext
TargetTransformInfo::getVectorInstrContextHint(const Instruction *I) {
  if (!I)
    return VectorInstrContext::None;
 
  // For inserts, check if the value being inserted comes from a single-use
  // load.
  if (isa<InsertElementInst>(I) && isa<LoadInst>(I->getOperand(1)) &&
      I->getOperand(1)->hasOneUse())
    return VectorInstrContext::Load;
 
  // For extracts, check if it has a single use that is a store.
  if (isa<ExtractElementInst>(I) && I->hasOneUse() &&
      isa<StoreInst>(*I->user_begin()))
    return VectorInstrContext::Store;
 
  return VectorInstrContext::None;
}
 
TargetTransformInfo::VectorInstrContext
TargetTransformInfo::getVectorInstrContextHint(ArrayRef<Value *> VL,
                                               const APInt &DemandedElts) {
  VectorInstrContext VIC = VectorInstrContext::None;
  for (unsigned I : seq(VL.size())) {
    if (!DemandedElts[I])
      continue;
    Value *V = VL[I];
    if (isa<UndefValue>(V))
      continue;
    auto *Inst = dyn_cast<Instruction>(V);
    if (!Inst)
      return VectorInstrContext::None;
    VectorInstrContext IVIC = getVectorInstrContextHint(Inst);
    if (VIC == VectorInstrContext::None) {
      VIC = IVIC;
      continue;
    }
    if (VIC != IVIC)
      return VectorInstrContext::None;
  }
  return VIC;
}
 
TargetTransformInfo::VectorInstrContext
TargetTransformInfo::getBuildVectorContextHint(
    ArrayRef<int> Mask, ArrayRef<Value *> Scalars,
    function_ref<bool(SmallVectorImpl<BuildVectorUseOp> &)> GatherUseOps)
    const {
  return TTIImpl->getBuildVectorContextHint(Mask, Scalars, GatherUseOps);
}
 
InstructionCost TargetTransformInfo::getScalarizationOverhead(
    VectorType *Ty, const APInt &DemandedElts, bool Insert, bool Extract,
    TTI::TargetCostKind CostKind, bool ForPoisonSrc, ArrayRef<Value *> VL,
    TTI::VectorInstrContext VIC) const {
  return TTIImpl->getScalarizationOverhead(Ty, DemandedElts, Insert, Extract,
                                           CostKind, ForPoisonSrc, VL, VIC);
}
 
InstructionCost TargetTransformInfo::getOperandsScalarizationOverhead(
    ArrayRef<Type *> Tys, TTI::TargetCostKind CostKind,
    TTI::VectorInstrContext VIC) const {
  return TTIImpl->getOperandsScalarizationOverhead(Tys, CostKind, VIC);
}
 
bool TargetTransformInfo::supportsEfficientVectorElementLoadStore() const {
  return TTIImpl->supportsEfficientVectorElementLoadStore();
}
 
bool TargetTransformInfo::supportsTailCalls() const {
  return TTIImpl->supportsTailCalls();
}
 
bool TargetTransformInfo::supportsTailCallFor(const CallBase *CB) const {
  return TTIImpl->supportsTailCallFor(CB);
}
 
bool TargetTransformInfo::enableAggressiveInterleaving(
    bool LoopHasReductions) const {
  return TTIImpl->enableAggressiveInterleaving(LoopHasReductions);
}
 
TargetTransformInfo::MemCmpExpansionOptions
TargetTransformInfo::enableMemCmpExpansion(bool OptSize, bool IsZeroCmp) const {
  return TTIImpl->enableMemCmpExpansion(OptSize, IsZeroCmp);
}
 
bool TargetTransformInfo::enableSelectOptimize() const {
  return TTIImpl->enableSelectOptimize();
}
 
bool TargetTransformInfo::shouldTreatInstructionLikeSelect(
    const Instruction *I) const {
  return TTIImpl->shouldTreatInstructionLikeSelect(I);
}
 
bool TargetTransformInfo::enableInterleavedAccessVectorization() const {
  return TTIImpl->enableInterleavedAccessVectorization();
}
 
bool TargetTransformInfo::enableMaskedInterleavedAccessVectorization() const {
  return TTIImpl->enableMaskedInterleavedAccessVectorization();
}
 
bool TargetTransformInfo::isFPVectorizationPotentiallyUnsafe() const {
  return TTIImpl->isFPVectorizationPotentiallyUnsafe();
}
 
bool
TargetTransformInfo::allowsMisalignedMemoryAccesses(LLVMContext &Context,
                                                    unsigned BitWidth,
                                                    unsigned AddressSpace,
                                                    Align Alignment,
                                                    unsigned *Fast) const {
  return TTIImpl->allowsMisalignedMemoryAccesses(Context, BitWidth,
                                                 AddressSpace, Alignment, Fast);
}
 
TargetTransformInfo::PopcntSupportKind
TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
  return TTIImpl->getPopcntSupport(IntTyWidthInBit);
}
 
bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
  return TTIImpl->haveFastSqrt(Ty);
}
 
bool TargetTransformInfo::isExpensiveToSpeculativelyExecute(
    const Instruction *I) const {
  return TTIImpl->isExpensiveToSpeculativelyExecute(I);
}
 
bool TargetTransformInfo::isFCmpOrdCheaperThanFCmpZero(Type *Ty) const {
  return TTIImpl->isFCmpOrdCheaperThanFCmpZero(Ty);
}
 
InstructionCost TargetTransformInfo::getFPOpCost(Type *Ty) const {
  InstructionCost Cost = TTIImpl->getFPOpCost(Ty);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getIntImmCodeSizeCost(unsigned Opcode,
                                                           unsigned Idx,
                                                           const APInt &Imm,
                                                           Type *Ty) const {
  InstructionCost Cost = TTIImpl->getIntImmCodeSizeCost(Opcode, Idx, Imm, Ty);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost
TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty,
                                   TTI::TargetCostKind CostKind) const {
  InstructionCost Cost = TTIImpl->getIntImmCost(Imm, Ty, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getIntImmCostInst(
    unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty,
    TTI::TargetCostKind CostKind, Instruction *Inst) const {
  InstructionCost Cost =
      TTIImpl->getIntImmCostInst(Opcode, Idx, Imm, Ty, CostKind, Inst);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost
TargetTransformInfo::getIntImmCostIntrin(Intrinsic::ID IID, unsigned Idx,
                                         const APInt &Imm, Type *Ty,
                                         TTI::TargetCostKind CostKind) const {
  InstructionCost Cost =
      TTIImpl->getIntImmCostIntrin(IID, Idx, Imm, Ty, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
bool TargetTransformInfo::preferToKeepConstantsAttached(
    const Instruction &Inst, const Function &Fn) const {
  return TTIImpl->preferToKeepConstantsAttached(Inst, Fn);
}
 
unsigned TargetTransformInfo::getNumberOfRegisters(unsigned ClassID) const {
  return TTIImpl->getNumberOfRegisters(ClassID);
}
 
bool TargetTransformInfo::hasConditionalLoadStoreForType(Type *Ty,
                                                         bool IsStore) const {
  return TTIImpl->hasConditionalLoadStoreForType(Ty, IsStore);
}
 
unsigned TargetTransformInfo::getRegisterClassForType(bool Vector,
                                                      Type *Ty) const {
  return TTIImpl->getRegisterClassForType(Vector, Ty);
}
 
const char *TargetTransformInfo::getRegisterClassName(unsigned ClassID) const {
  return TTIImpl->getRegisterClassName(ClassID);
}
 
InstructionCost TargetTransformInfo::getRegisterClassSpillCost(
    unsigned ClassID, TTI::TargetCostKind CostKind) const {
  return TTIImpl->getRegisterClassSpillCost(ClassID, CostKind);
}
 
InstructionCost TargetTransformInfo::getRegisterClassReloadCost(
    unsigned ClassID, TTI::TargetCostKind CostKind) const {
  return TTIImpl->getRegisterClassReloadCost(ClassID, CostKind);
}
 
TypeSize TargetTransformInfo::getRegisterBitWidth(
    TargetTransformInfo::RegisterKind K) const {
  return TTIImpl->getRegisterBitWidth(K);
}
 
unsigned TargetTransformInfo::getMinVectorRegisterBitWidth() const {
  return TTIImpl->getMinVectorRegisterBitWidth();
}
 
std::optional<unsigned> TargetTransformInfo::getVScaleForTuning() const {
  return TTIImpl->getVScaleForTuning();
}
 
bool TargetTransformInfo::shouldMaximizeVectorBandwidth(
    TargetTransformInfo::RegisterKind K) const {
  return TTIImpl->shouldMaximizeVectorBandwidth(K);
}
 
ElementCount TargetTransformInfo::getMinimumVF(unsigned ElemWidth,
                                               bool IsScalable) const {
  return TTIImpl->getMinimumVF(ElemWidth, IsScalable);
}
 
unsigned TargetTransformInfo::getMaximumVF(unsigned ElemWidth,
                                           unsigned Opcode) const {
  return TTIImpl->getMaximumVF(ElemWidth, Opcode);
}
 
unsigned TargetTransformInfo::getStoreMinimumVF(unsigned VF, Type *ScalarMemTy,
                                                Type *ScalarValTy,
                                                Align Alignment,
                                                unsigned AddrSpace) const {
  return TTIImpl->getStoreMinimumVF(VF, ScalarMemTy, ScalarValTy, Alignment,
                                    AddrSpace);
}
 
bool TargetTransformInfo::shouldConsiderAddressTypePromotion(
    const Instruction &I, bool &AllowPromotionWithoutCommonHeader) const {
  return TTIImpl->shouldConsiderAddressTypePromotion(
      I, AllowPromotionWithoutCommonHeader);
}
 
unsigned TargetTransformInfo::getCacheLineSize() const {
  return CacheLineSize.getNumOccurrences() > 0 ? CacheLineSize
                                               : TTIImpl->getCacheLineSize();
}
 
std::optional<unsigned>
TargetTransformInfo::getCacheSize(CacheLevel Level) const {
  return TTIImpl->getCacheSize(Level);
}
 
std::optional<unsigned>
TargetTransformInfo::getCacheAssociativity(CacheLevel Level) const {
  return TTIImpl->getCacheAssociativity(Level);
}
 
std::optional<unsigned> TargetTransformInfo::getMinPageSize() const {
  return MinPageSize.getNumOccurrences() > 0 ? MinPageSize
                                             : TTIImpl->getMinPageSize();
}
 
unsigned TargetTransformInfo::getPrefetchDistance() const {
  return TTIImpl->getPrefetchDistance();
}
 
unsigned TargetTransformInfo::getMinPrefetchStride(
    unsigned NumMemAccesses, unsigned NumStridedMemAccesses,
    unsigned NumPrefetches, bool HasCall) const {
  return TTIImpl->getMinPrefetchStride(NumMemAccesses, NumStridedMemAccesses,
                                       NumPrefetches, HasCall);
}
 
unsigned TargetTransformInfo::getMaxPrefetchIterationsAhead() const {
  return TTIImpl->getMaxPrefetchIterationsAhead();
}
 
bool TargetTransformInfo::enableWritePrefetching() const {
  return TTIImpl->enableWritePrefetching();
}
 
bool TargetTransformInfo::shouldPrefetchAddressSpace(unsigned AS) const {
  return TTIImpl->shouldPrefetchAddressSpace(AS);
}
 
InstructionCost TargetTransformInfo::getPartialReductionCost(
    unsigned Opcode, Type *InputTypeA, Type *InputTypeB, Type *AccumType,
    ElementCount VF, PartialReductionExtendKind OpAExtend,
    PartialReductionExtendKind OpBExtend, std::optional<unsigned> BinOp,
    TTI::TargetCostKind CostKind, std::optional<FastMathFlags> FMF) const {
  return TTIImpl->getPartialReductionCost(Opcode, InputTypeA, InputTypeB,
                                          AccumType, VF, OpAExtend, OpBExtend,
                                          BinOp, CostKind, FMF);
}
 
unsigned
TargetTransformInfo::getMaxInterleaveFactor(ElementCount VF,
                                            bool HasUnorderedReductions) const {
  return TTIImpl->getMaxInterleaveFactor(VF, HasUnorderedReductions);
}
 
TargetTransformInfo::OperandValueInfo
TargetTransformInfo::getOperandInfo(const Value *V) {
  OperandValueKind OpInfo = OK_AnyValue;
  OperandValueProperties OpProps = OP_None;
 
  // undef/poison don't materialize constants.
  if (isa<UndefValue>(V))
    return {OK_AnyValue, OP_None};
 
  if (isa<ConstantInt>(V) || isa<ConstantFP>(V)) {
    if (const auto *CI = dyn_cast<ConstantInt>(V)) {
      if (CI->getValue().isPowerOf2())
        OpProps = OP_PowerOf2;
      else if (CI->getValue().isNegatedPowerOf2())
        OpProps = OP_NegatedPowerOf2;
    }
    return {OK_UniformConstantValue, OpProps};
  }
 
  // A broadcast shuffle creates a uniform value.
  // TODO: Add support for non-zero index broadcasts.
  // TODO: Add support for different source vector width.
  if (const auto *ShuffleInst = dyn_cast<ShuffleVectorInst>(V))
    if (ShuffleInst->isZeroEltSplat())
      OpInfo = OK_UniformValue;
 
  const Value *Splat = getSplatValue(V);
 
  // Check for a splat of a constant or for a non uniform vector of constants
  // and check if the constant(s) are all powers of two.
  if (Splat) {
    // Check for a splat of a uniform value. This is not loop aware, so return
    // true only for the obviously uniform cases (argument, globalvalue)
    if (isa<Argument>(Splat) || isa<GlobalValue>(Splat)) {
      OpInfo = OK_UniformValue;
    } else if (isa<Constant>(Splat)) {
      OpInfo = OK_UniformConstantValue;
      if (auto *CI = dyn_cast<ConstantInt>(Splat)) {
        if (CI->getValue().isPowerOf2())
          OpProps = OP_PowerOf2;
        else if (CI->getValue().isNegatedPowerOf2())
          OpProps = OP_NegatedPowerOf2;
      }
    }
  } else if (const auto *CDS = dyn_cast<ConstantDataSequential>(V)) {
    OpInfo = OK_NonUniformConstantValue;
    bool AllPow2 = true, AllNegPow2 = true;
    for (uint64_t I = 0, E = CDS->getNumElements(); I != E; ++I) {
      if (auto *CI = dyn_cast<ConstantInt>(CDS->getElementAsConstant(I))) {
        AllPow2 &= CI->getValue().isPowerOf2();
        AllNegPow2 &= CI->getValue().isNegatedPowerOf2();
        if (AllPow2 || AllNegPow2)
          continue;
      }
      AllPow2 = AllNegPow2 = false;
      break;
    }
    OpProps = AllPow2 ? OP_PowerOf2 : OpProps;
    OpProps = AllNegPow2 ? OP_NegatedPowerOf2 : OpProps;
  } else if (isa<ConstantVector>(V) || isa<ConstantDataVector>(V)) {
    OpInfo = OK_NonUniformConstantValue;
  }
 
  return {OpInfo, OpProps};
}
 
TargetTransformInfo::OperandValueInfo
TargetTransformInfo::getOperandInfo(ArrayRef<Value *> Ops) {
  assert(!Ops.empty());
  const auto *Op0 = Ops.front();
 
  const bool IsConstant = all_of(Ops, [](Value *V) {
    // TODO: We should allow undef elements here
    return isa<Constant>(V) && !isa<ConstantExpr, GlobalValue>(V) &&
           !isa<UndefValue>(V);
  });
  const bool IsUniform = all_of(Ops, [=](Value *V) {
    // TODO: We should allow undef elements here
    return V == Op0;
  });
  const bool IsPowerOfTwo = all_of(Ops, [](Value *V) {
    // TODO: We should allow undef elements here
    if (auto *CI = dyn_cast<ConstantInt>(V))
      return CI->getValue().isPowerOf2();
    return false;
  });
  const bool IsNegatedPowerOfTwo = all_of(Ops, [](Value *V) {
    // TODO: We should allow undef elements here
    if (auto *CI = dyn_cast<ConstantInt>(V))
      return CI->getValue().isNegatedPowerOf2();
    return false;
  });
 
  TTI::OperandValueKind VK = TTI::OK_AnyValue;
  if (IsConstant && IsUniform)
    VK = TTI::OK_UniformConstantValue;
  else if (IsConstant)
    VK = TTI::OK_NonUniformConstantValue;
  else if (IsUniform)
    VK = TTI::OK_UniformValue;
 
  TTI::OperandValueProperties VP = TTI::OP_None;
  VP = IsPowerOfTwo ? TTI::OP_PowerOf2 : VP;
  VP = IsNegatedPowerOfTwo ? TTI::OP_NegatedPowerOf2 : VP;
 
  return {VK, VP};
}
 
TargetTransformInfo::OperandValueInfo
TargetTransformInfo::commonOperandInfo(const Value *X, const Value *Y) {
  OperandValueInfo OpInfoX = getOperandInfo(X);
  if (X == Y)
    return OpInfoX;
  return OpInfoX.mergeWith(getOperandInfo(Y));
}
 
InstructionCost TargetTransformInfo::getArithmeticInstrCost(
    unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind,
    OperandValueInfo Op1Info, OperandValueInfo Op2Info,
    ArrayRef<const Value *> Args, const Instruction *CtxI,
    const TargetLibraryInfo *TLibInfo) const {
 
  // Use call cost for frem instructions that have platform specific vector math
  // functions, as those will be replaced with calls later by SelectionDAG or
  // ReplaceWithVecLib pass.
  if (TLibInfo && Opcode == Instruction::FRem) {
    VectorType *VecTy = dyn_cast<VectorType>(Ty);
    LibFunc Func = TLibInfo->getLibFunc(Instruction::FRem, Ty->getScalarType());
    if (VecTy && Func != NotLibFunc &&
        TLibInfo->isFunctionVectorizable(TLibInfo->getName(Func),
                                         VecTy->getElementCount()))
      return getCallInstrCost(nullptr, VecTy, {VecTy, VecTy}, CostKind);
  }
 
  InstructionCost Cost = TTIImpl->getArithmeticInstrCost(
      Opcode, Ty, CostKind, Op1Info, Op2Info, Args, CtxI);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getAltInstrCost(
    VectorType *VecTy, unsigned Opcode0, unsigned Opcode1,
    const SmallBitVector &OpcodeMask, TTI::TargetCostKind CostKind,
    ArrayRef<const Value *> Scalars) const {
  InstructionCost Cost = TTIImpl->getAltInstrCost(
      VecTy, Opcode0, Opcode1, OpcodeMask, CostKind, Scalars);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getShuffleCost(
    ShuffleKind Kind, VectorType *DstTy, VectorType *SrcTy,
    TTI::TargetCostKind CostKind, ArrayRef<int> Mask, int Index,
    VectorType *SubTp, ArrayRef<const Value *> Args, const Instruction *CtxI,
    TTI::VectorInstrContext VIC) const {
  assert((Mask.empty() || DstTy->isScalableTy() ||
          Mask.size() == DstTy->getElementCount().getKnownMinValue()) &&
         "Expected the Mask to match the return size if given");
  assert(SrcTy->getScalarType() == DstTy->getScalarType() &&
         "Expected the same scalar types");
  InstructionCost Cost = TTIImpl->getShuffleCost(
      Kind, DstTy, SrcTy, CostKind, Mask, Index, SubTp, Args, CtxI, VIC);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
TargetTransformInfo::PartialReductionExtendKind
TargetTransformInfo::getPartialReductionExtendKind(Instruction *I) {
  if (auto *Cast = dyn_cast<CastInst>(I))
    return getPartialReductionExtendKind(Cast->getOpcode());
  return PR_None;
}
 
Instruction::CastOps
TargetTransformInfo::getOpcodeForPartialReductionExtendKind(
    TargetTransformInfo::PartialReductionExtendKind Kind) {
  switch (Kind) {
  case TargetTransformInfo::PR_ZeroExtend:
    return Instruction::CastOps::ZExt;
  case TargetTransformInfo::PR_SignExtend:
    return Instruction::CastOps::SExt;
  case TargetTransformInfo::PR_FPExtend:
    return Instruction::CastOps::FPExt;
  default:
    break;
  }
  llvm_unreachable("Unhandled partial reduction extend kind");
}
 
TargetTransformInfo::PartialReductionExtendKind
TargetTransformInfo::getPartialReductionExtendKind(
    Instruction::CastOps CastOpc) {
  switch (CastOpc) {
  case Instruction::CastOps::ZExt:
    return PR_ZeroExtend;
  case Instruction::CastOps::SExt:
    return PR_SignExtend;
  case Instruction::CastOps::FPExt:
    return PR_FPExtend;
  default:
    return PR_None;
  }
  llvm_unreachable("Unhandled cast opcode");
}
 
TTI::CastContextHint
TargetTransformInfo::getCastContextHint(const Instruction *I) {
  if (!I)
    return CastContextHint::None;
 
  auto getLoadStoreKind = [](const Value *V, unsigned LdStOp, unsigned MaskedOp,
                             unsigned GatScatOp) {
    const Instruction *I = dyn_cast<Instruction>(V);
    if (!I)
      return CastContextHint::None;
 
    if (I->getOpcode() == LdStOp)
      return CastContextHint::Normal;
 
    if (const IntrinsicInst *II = dyn_cast<IntrinsicInst>(I)) {
      if (II->getIntrinsicID() == MaskedOp)
        return TTI::CastContextHint::Masked;
      if (II->getIntrinsicID() == GatScatOp)
        return TTI::CastContextHint::GatherScatter;
    }
 
    return TTI::CastContextHint::None;
  };
 
  switch (I->getOpcode()) {
  case Instruction::ZExt:
  case Instruction::SExt:
  case Instruction::FPExt:
    return getLoadStoreKind(I->getOperand(0), Instruction::Load,
                            Intrinsic::masked_load, Intrinsic::masked_gather);
  case Instruction::Trunc:
  case Instruction::FPTrunc:
    if (I->hasOneUse())
      return getLoadStoreKind(*I->user_begin(), Instruction::Store,
                              Intrinsic::masked_store,
                              Intrinsic::masked_scatter);
    break;
  default:
    return CastContextHint::None;
  }
 
  return TTI::CastContextHint::None;
}
 
InstructionCost TargetTransformInfo::getCastInstrCost(
    unsigned Opcode, Type *Dst, Type *Src, CastContextHint CCH,
    TTI::TargetCostKind CostKind, const Instruction *I) const {
  assert((I == nullptr || I->getOpcode() == Opcode) &&
         "Opcode should reflect passed instruction.");
  InstructionCost Cost =
      TTIImpl->getCastInstrCost(Opcode, Dst, Src, CCH, CostKind, I);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getExtractWithExtendCost(
    unsigned Opcode, Type *Dst, VectorType *VecTy, unsigned Index,
    TTI::TargetCostKind CostKind) const {
  InstructionCost Cost =
      TTIImpl->getExtractWithExtendCost(Opcode, Dst, VecTy, Index, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getCFInstrCost(
    unsigned Opcode, TTI::TargetCostKind CostKind, const Instruction *I) const {
  assert((I == nullptr || I->getOpcode() == Opcode) &&
         "Opcode should reflect passed instruction.");
  InstructionCost Cost = TTIImpl->getCFInstrCost(Opcode, CostKind, I);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getCmpSelInstrCost(
    unsigned Opcode, Type *ValTy, Type *CondTy, CmpInst::Predicate VecPred,
    TTI::TargetCostKind CostKind, OperandValueInfo Op1Info,
    OperandValueInfo Op2Info, const Instruction *I) const {
  assert((I == nullptr || I->getOpcode() == Opcode) &&
         "Opcode should reflect passed instruction.");
  InstructionCost Cost = TTIImpl->getCmpSelInstrCost(
      Opcode, ValTy, CondTy, VecPred, CostKind, Op1Info, Op2Info, I);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getVectorInstrCost(
    unsigned Opcode, Type *Val, TTI::TargetCostKind CostKind, unsigned Index,
    const Value *Op0, const Value *Op1, TTI::VectorInstrContext VIC) const {
  assert((Opcode == Instruction::InsertElement ||
          Opcode == Instruction::ExtractElement) &&
         "Expecting Opcode to be insertelement/extractelement.");
  InstructionCost Cost =
      TTIImpl->getVectorInstrCost(Opcode, Val, CostKind, Index, Op0, Op1, VIC);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getVectorInstrCost(
    unsigned Opcode, Type *Val, TTI::TargetCostKind CostKind, unsigned Index,
    Value *Scalar, ArrayRef<std::tuple<Value *, User *, int>> ScalarUserAndIdx,
    TTI::VectorInstrContext VIC) const {
  assert((Opcode == Instruction::InsertElement ||
          Opcode == Instruction::ExtractElement) &&
         "Expecting Opcode to be insertelement/extractelement.");
  InstructionCost Cost = TTIImpl->getVectorInstrCost(
      Opcode, Val, CostKind, Index, Scalar, ScalarUserAndIdx, VIC);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getVectorInstrCost(
    const Instruction &I, Type *Val, TTI::TargetCostKind CostKind,
    unsigned Index, TTI::VectorInstrContext VIC) const {
  // FIXME: Assert that Opcode is either InsertElement or ExtractElement.
  // This is mentioned in the interface description and respected by all
  // callers, but never asserted upon.
  InstructionCost Cost =
      TTIImpl->getVectorInstrCost(I, Val, CostKind, Index, VIC);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getIndexedVectorInstrCostFromEnd(
    unsigned Opcode, Type *Val, TTI::TargetCostKind CostKind,
    unsigned Index) const {
  InstructionCost Cost =
      TTIImpl->getIndexedVectorInstrCostFromEnd(Opcode, Val, CostKind, Index);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getInsertExtractValueCost(
    unsigned Opcode, TTI::TargetCostKind CostKind) const {
  assert((Opcode == Instruction::InsertValue ||
          Opcode == Instruction::ExtractValue) &&
         "Expecting Opcode to be insertvalue/extractvalue.");
  InstructionCost Cost = TTIImpl->getInsertExtractValueCost(Opcode, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getReplicationShuffleCost(
    Type *EltTy, int ReplicationFactor, int VF, const APInt &DemandedDstElts,
    TTI::TargetCostKind CostKind) const {
  InstructionCost Cost = TTIImpl->getReplicationShuffleCost(
      EltTy, ReplicationFactor, VF, DemandedDstElts, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getMemoryOpCost(
    unsigned Opcode, Type *Src, Align Alignment, unsigned AddressSpace,
    TTI::TargetCostKind CostKind, TTI::OperandValueInfo OpInfo,
    const Instruction *I) const {
  assert((I == nullptr || I->getOpcode() == Opcode) &&
         "Opcode should reflect passed instruction.");
  InstructionCost Cost = TTIImpl->getMemoryOpCost(
      Opcode, Src, Alignment, AddressSpace, CostKind, OpInfo, I);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getInterleavedMemoryOpCost(
    unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef<unsigned> Indices,
    Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind,
    bool UseMaskForCond, bool UseMaskForGaps) const {
  InstructionCost Cost = TTIImpl->getInterleavedMemoryOpCost(
      Opcode, VecTy, Factor, Indices, Alignment, AddressSpace, CostKind,
      UseMaskForCond, UseMaskForGaps);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost
TargetTransformInfo::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
                                           TTI::TargetCostKind CostKind) const {
  InstructionCost Cost = TTIImpl->getIntrinsicInstrCost(ICA, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getMemIntrinsicInstrCost(
    const MemIntrinsicCostAttributes &MICA,
    TTI::TargetCostKind CostKind) const {
  InstructionCost Cost = TTIImpl->getMemIntrinsicInstrCost(MICA, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost
TargetTransformInfo::getCallInstrCost(Function *F, Type *RetTy,
                                      ArrayRef<Type *> Tys,
                                      TTI::TargetCostKind CostKind) const {
  InstructionCost Cost = TTIImpl->getCallInstrCost(F, RetTy, Tys, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
  return TTIImpl->getNumberOfParts(Tp);
}
 
InstructionCost TargetTransformInfo::getAddressComputationCost(
    Type *PtrTy, ScalarEvolution *SE, const SCEV *Ptr,
    TTI::TargetCostKind CostKind) const {
  InstructionCost Cost =
      TTIImpl->getAddressComputationCost(PtrTy, SE, Ptr, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getMemcpyCost(const Instruction *I) const {
  InstructionCost Cost = TTIImpl->getMemcpyCost(I);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
uint64_t TargetTransformInfo::getMaxMemIntrinsicInlineSizeThreshold() const {
  return TTIImpl->getMaxMemIntrinsicInlineSizeThreshold();
}
 
uint64_t TargetTransformInfo::getMaxBoundedMemSetInlineSize() const {
  return TTIImpl->getMaxBoundedMemSetInlineSize();
}
 
InstructionCost TargetTransformInfo::getArithmeticReductionCost(
    unsigned Opcode, VectorType *Ty, std::optional<FastMathFlags> FMF,
    TTI::TargetCostKind CostKind) const {
  InstructionCost Cost =
      TTIImpl->getArithmeticReductionCost(Opcode, Ty, FMF, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getMinMaxReductionCost(
    Intrinsic::ID IID, VectorType *Ty, FastMathFlags FMF,
    TTI::TargetCostKind CostKind) const {
  InstructionCost Cost =
      TTIImpl->getMinMaxReductionCost(IID, Ty, FMF, CostKind);
  assert(Cost >= 0 && "TTI should not produce negative costs!");
  return Cost;
}
 
InstructionCost TargetTransformInfo::getExtendedReductionCost(
    unsigned Opcode, bool IsUnsigned, Type *ResTy, VectorType *Ty,
    std::optional<FastMathFlags> FMF, TTI::TargetCostKind CostKind) const {
  return TTIImpl->getExtendedReductionCost(Opcode, IsUnsigned, ResTy, Ty, FMF,
                                           CostKind);
}
 
InstructionCost TargetTransformInfo::getMulAccReductionCost(
    bool IsUnsigned, unsigned RedOpcode, Type *ResTy, VectorType *Ty,
    TTI::TargetCostKind CostKind) const {
  return TTIImpl->getMulAccReductionCost(IsUnsigned, RedOpcode, ResTy, Ty,
                                         CostKind);
}
 
InstructionCost
TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const {
  return TTIImpl->getCostOfKeepingLiveOverCall(Tys);
}
 
bool TargetTransformInfo::getTgtMemIntrinsic(IntrinsicInst *Inst,
                                             MemIntrinsicInfo &Info) const {
  return TTIImpl->getTgtMemIntrinsic(Inst, Info);
}
 
unsigned TargetTransformInfo::getAtomicMemIntrinsicMaxElementSize() const {
  return TTIImpl->getAtomicMemIntrinsicMaxElementSize();
}
 
Value *TargetTransformInfo::getOrCreateResultFromMemIntrinsic(
    IntrinsicInst *Inst, Type *ExpectedType, bool CanCreate) const {
  return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType,
                                                    CanCreate);
}
 
Type *TargetTransformInfo::getMemcpyLoopLoweringType(
    LLVMContext &Context, Value *Length, unsigned SrcAddrSpace,
    unsigned DestAddrSpace, Align SrcAlign, Align DestAlign,
    std::optional<uint32_t> AtomicElementSize) const {
  return TTIImpl->getMemcpyLoopLoweringType(Context, Length, SrcAddrSpace,
                                            DestAddrSpace, SrcAlign, DestAlign,
                                            AtomicElementSize);
}
 
void TargetTransformInfo::getMemcpyLoopResidualLoweringType(
    SmallVectorImpl<Type *> &OpsOut, LLVMContext &Context,
    unsigned RemainingBytes, unsigned SrcAddrSpace, unsigned DestAddrSpace,
    Align SrcAlign, Align DestAlign,
    std::optional<uint32_t> AtomicCpySize) const {
  TTIImpl->getMemcpyLoopResidualLoweringType(
      OpsOut, Context, RemainingBytes, SrcAddrSpace, DestAddrSpace, SrcAlign,
      DestAlign, AtomicCpySize);
}
 
bool TargetTransformInfo::areInlineCompatible(const Function *Caller,
                                              const Function *Callee) const {
  return TTIImpl->areInlineCompatible(Caller, Callee);
}
 
unsigned
TargetTransformInfo::getInlineCallPenalty(const Function *F,
                                          const CallBase &Call,
                                          unsigned DefaultCallPenalty) const {
  return TTIImpl->getInlineCallPenalty(F, Call, DefaultCallPenalty);
}
 
bool TargetTransformInfo::shouldCopyAttributeWhenOutliningFrom(
    const Function *Caller, const Attribute &Attr) const {
  return TTIImpl->shouldCopyAttributeWhenOutliningFrom(Caller, Attr);
}
bool TargetTransformInfo::areTypesABICompatible(const Function *Caller,
                                                const Function *Callee,
                                                ArrayRef<Type *> Types) const {
  return TTIImpl->areTypesABICompatible(Caller, Callee, Types);
}
 
bool TargetTransformInfo::isIndexedLoadLegal(MemIndexedMode Mode,
                                             Type *Ty) const {
  return TTIImpl->isIndexedLoadLegal(Mode, Ty);
}
 
bool TargetTransformInfo::isIndexedStoreLegal(MemIndexedMode Mode,
                                              Type *Ty) const {
  return TTIImpl->isIndexedStoreLegal(Mode, Ty);
}
 
unsigned TargetTransformInfo::getLoadStoreVecRegBitWidth(unsigned AS) const {
  return TTIImpl->getLoadStoreVecRegBitWidth(AS);
}
 
bool TargetTransformInfo::isLegalToVectorizeLoad(LoadInst *LI) const {
  return TTIImpl->isLegalToVectorizeLoad(LI);
}
 
bool TargetTransformInfo::isLegalToVectorizeStore(StoreInst *SI) const {
  return TTIImpl->isLegalToVectorizeStore(SI);
}
 
bool TargetTransformInfo::isLegalToVectorizeLoadChain(
    unsigned ChainSizeInBytes, Align Alignment, unsigned AddrSpace) const {
  return TTIImpl->isLegalToVectorizeLoadChain(ChainSizeInBytes, Alignment,
                                              AddrSpace);
}
 
bool TargetTransformInfo::isLegalToVectorizeStoreChain(
    unsigned ChainSizeInBytes, Align Alignment, unsigned AddrSpace) const {
  return TTIImpl->isLegalToVectorizeStoreChain(ChainSizeInBytes, Alignment,
                                               AddrSpace);
}
 
bool TargetTransformInfo::isLegalToVectorizeReduction(
    const RecurrenceDescriptor &RdxDesc, ElementCount VF) const {
  return TTIImpl->isLegalToVectorizeReduction(RdxDesc, VF);
}
 
bool TargetTransformInfo::isElementTypeLegalForScalableVector(Type *Ty) const {
  return TTIImpl->isElementTypeLegalForScalableVector(Ty);
}
 
unsigned TargetTransformInfo::getLoadVectorFactor(unsigned VF,
                                                  unsigned LoadSize,
                                                  unsigned ChainSizeInBytes,
                                                  VectorType *VecTy) const {
  return TTIImpl->getLoadVectorFactor(VF, LoadSize, ChainSizeInBytes, VecTy);
}
 
unsigned TargetTransformInfo::getStoreVectorFactor(unsigned VF,
                                                   unsigned StoreSize,
                                                   unsigned ChainSizeInBytes,
                                                   VectorType *VecTy) const {
  return TTIImpl->getStoreVectorFactor(VF, StoreSize, ChainSizeInBytes, VecTy);
}
 
bool TargetTransformInfo::preferFixedOverScalableIfEqualCost() const {
  return TTIImpl->preferFixedOverScalableIfEqualCost();
}
 
bool TargetTransformInfo::preferInLoopReduction(RecurKind Kind,
                                                Type *Ty) const {
  return TTIImpl->preferInLoopReduction(Kind, Ty);
}
 
bool TargetTransformInfo::preferAlternateOpcodeVectorization() const {
  return TTIImpl->preferAlternateOpcodeVectorization();
}
 
bool TargetTransformInfo::preferSLPInstCountCheck() const {
  return TTIImpl->preferSLPInstCountCheck();
}
 
bool TargetTransformInfo::preferPredicatedReductionSelect() const {
  return TTIImpl->preferPredicatedReductionSelect();
}
 
bool TargetTransformInfo::preferEpilogueVectorization(
    ElementCount Iters) const {
  return TTIImpl->preferEpilogueVectorization(Iters);
}
 
bool TargetTransformInfo::shouldConsiderVectorizationRegPressure() const {
  return TTIImpl->shouldConsiderVectorizationRegPressure();
}
 
TargetTransformInfo::VPLegalization
TargetTransformInfo::getVPLegalizationStrategy(const VPIntrinsic &VPI) const {
  return TTIImpl->getVPLegalizationStrategy(VPI);
}
 
bool TargetTransformInfo::hasArmWideBranch(bool Thumb) const {
  return TTIImpl->hasArmWideBranch(Thumb);
}
 
APInt TargetTransformInfo::getFeatureMask(const Function &F) const {
  return TTIImpl->getFeatureMask(F);
}
 
APInt TargetTransformInfo::getPriorityMask(const Function &F) const {
  return TTIImpl->getPriorityMask(F);
}
 
bool TargetTransformInfo::isMultiversionedFunction(const Function &F) const {
  return TTIImpl->isMultiversionedFunction(F);
}
 
unsigned TargetTransformInfo::getMaxNumArgs() const {
  return TTIImpl->getMaxNumArgs();
}
 
bool TargetTransformInfo::shouldExpandReduction(const IntrinsicInst *II) const {
  return TTIImpl->shouldExpandReduction(II);
}
 
TargetTransformInfo::ReductionShuffle
TargetTransformInfo::getPreferredExpandedReductionShuffle(
    const IntrinsicInst *II) const {
  return TTIImpl->getPreferredExpandedReductionShuffle(II);
}
 
unsigned TargetTransformInfo::getGISelRematGlobalCost() const {
  return TTIImpl->getGISelRematGlobalCost();
}
 
unsigned TargetTransformInfo::getMinTripCountTailFoldingThreshold() const {
  return TTIImpl->getMinTripCountTailFoldingThreshold();
}
 
bool TargetTransformInfo::supportsScalableVectors() const {
  return TTIImpl->supportsScalableVectors();
}
 
bool TargetTransformInfo::enableScalableVectorization() const {
  return TTIImpl->enableScalableVectorization();
}
 
bool TargetTransformInfo::hasActiveVectorLength() const {
  return TTIImpl->hasActiveVectorLength();
}
 
bool TargetTransformInfo::isProfitableToSinkOperands(
    Instruction *I, SmallVectorImpl<Use *> &OpsToSink,
    const LoopInfo *LI) const {
  return TTIImpl->isProfitableToSinkOperands(I, OpsToSink, LI);
}
 
bool TargetTransformInfo::isVectorShiftByScalarCheap(Type *Ty) const {
  return TTIImpl->isVectorShiftByScalarCheap(Ty);
}
 
void TargetTransformInfo::collectKernelLaunchBounds(
    const Function &F,
    SmallVectorImpl<std::pair<StringRef, int64_t>> &LB) const {
  return TTIImpl->collectKernelLaunchBounds(F, LB);
}
 
bool TargetTransformInfo::allowVectorElementIndexingUsingGEP() const {
  return TTIImpl->allowVectorElementIndexingUsingGEP();
}
 
bool TargetTransformInfo::isUniform(const Instruction *I,
                                    const SmallBitVector &UniformArgs) const {
  return TTIImpl->isUniform(I, UniformArgs);
}
 
TargetTransformInfoImplBase::~TargetTransformInfoImplBase() = default;
 
TargetIRAnalysis::TargetIRAnalysis() : TTICallback(&getDefaultTTI) {}
 
TargetIRAnalysis::TargetIRAnalysis(
    std::function<Result(const Function &)> TTICallback)
    : TTICallback(std::move(TTICallback)) {}
 
TargetIRAnalysis::Result TargetIRAnalysis::run(const Function &F,
                                               FunctionAnalysisManager &) {
  assert(!F.isIntrinsic() && "Should not request TTI for intrinsics");
  return TTICallback(F);
}
 
AnalysisKey TargetIRAnalysis::Key;
 
TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(const Function &F) {
  return Result(F.getDataLayout());
}
 
// Register the basic pass.
INITIALIZE_PASS(TargetTransformInfoWrapperPass, "tti",
                "Target Transform Information", false, true)
char TargetTransformInfoWrapperPass::ID = 0;
 
void TargetTransformInfoWrapperPass::anchor() {}
 
TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass()
    : ImmutablePass(ID) {}
 
TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
    TargetIRAnalysis TIRA)
    : ImmutablePass(ID), TIRA(std::move(TIRA)) {}
 
TargetTransformInfo &TargetTransformInfoWrapperPass::getTTI(const Function &F) {
  FunctionAnalysisManager DummyFAM;
  TTI = TIRA.run(F, DummyFAM);
  return *TTI;
}
 
ImmutablePass *
llvm::createTargetTransformInfoWrapperPass(TargetIRAnalysis TIRA) {
  return new TargetTransformInfoWrapperPass(std::move(TIRA));
}