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llvm-project/llvm/lib/Analysis/TargetTransformInfo.cpp
Philip Reames 269bc684e7 [LV][RISCV] Disable vectorization of epilogue loops 
Epilogue loop vectorization is a feature in the vectorize intended to avoid running fully scalar code when the vector length of the main loop turns out to be either longer than the trip count of the actual loop, or with a huge remainder.

In practice, this feature appears to not have been well tuned. I honestly don't think it should be on by default at all, but it definitely shouldn't be on for RISCV. Note that other targets have also disabled it, but they've done so via disabling interleaving - which is, well, completely unrelated - and we don't want to do that for RISCV.

In the near term, many examples I'm seeing have terrible codegen for epilogue vectorization. We are greatly increasing code size for little value at reasonable VLEN values for small types. In the long term, the cases that epilogue vectorization are intended to handle are likely better handled via tail folding on RISCV.

As an aside, I also don't really trust the correctness of epilogue vectorization. The code structure is such that otherwise straight forward changes sometimes break only epilogue vectorization. The reuse of an existing vplan without careful validation opens significant room for nasty bugs. Given how rarely the code is exercised, that is not a good combination.

As such, this patch introduces a TTI hook, and completely disables epilogue vectorization on RISCV.

Differential Revision: https://reviews.llvm.org/D136695
2022-10-25 14:28:02 -07:00

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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/Analysis/CFG.h"
#include "llvm/Analysis/LoopIterator.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/IR/PatternMatch.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/CommandLine.h"
#include <utility>
using namespace llvm;
using namespace PatternMatch;
#define DEBUG_TYPE "tti"
static cl::opt<bool> EnableReduxCost("costmodel-reduxcost", cl::init(false),
cl::Hidden,
cl::desc("Recognize reduction patterns."));
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."));
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
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());
FunctionType *FTy = CI.getCalledFunction()->getFunctionType();
ParamTys.insert(ParamTys.begin(), FTy->param_begin(), FTy->param_end());
}
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 (unsigned Idx = 0, Size = Arguments.size(); Idx != Size; ++Idx)
ParamTys.push_back(Arguments[Idx]->getType());
}
IntrinsicCostAttributes::IntrinsicCostAttributes(Intrinsic::ID Id, Type *RTy,
ArrayRef<const Value *> Args,
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());
Arguments.insert(Arguments.begin(), Args.begin(), Args.end());
}
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.
Instruction *TI = BB->getTerminator();
if (!TI)
continue;
if (BranchInst *BI = dyn_cast<BranchInst>(TI)) {
if (!BI->isConditional())
continue;
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(new Model<NoTTIImpl>(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::adjustInliningThreshold(const CallBase *CB) const {
return TTIImpl->adjustInliningThreshold(CB);
}
int TargetTransformInfo::getInlinerVectorBonusPercent() const {
return TTIImpl->getInlinerVectorBonusPercent();
}
InstructionCost
TargetTransformInfo::getGEPCost(Type *PointeeType, const Value *Ptr,
ArrayRef<const Value *> Operands,
TTI::TargetCostKind CostKind) const {
return TTIImpl->getGEPCost(PointeeType, Ptr, Operands, 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 TTIImpl->getPredictableBranchThreshold();
}
bool TargetTransformInfo::hasBranchDivergence() const {
return TTIImpl->hasBranchDivergence();
}
bool TargetTransformInfo::useGPUDivergenceAnalysis() const {
return TTIImpl->useGPUDivergenceAnalysis();
}
bool TargetTransformInfo::isSourceOfDivergence(const Value *V) const {
return TTIImpl->isSourceOfDivergence(V);
}
bool llvm::TargetTransformInfo::isAlwaysUniform(const Value *V) const {
return TTIImpl->isAlwaysUniform(V);
}
unsigned TargetTransformInfo::getFlatAddressSpace() const {
return TTIImpl->getFlatAddressSpace();
}
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);
}
bool TargetTransformInfo::canHaveNonUndefGlobalInitializerInAddressSpace(
unsigned AS) const {
return TTIImpl->canHaveNonUndefGlobalInitializerInAddressSpace(AS);
}
unsigned TargetTransformInfo::getAssumedAddrSpace(const Value *V) const {
return TTIImpl->getAssumedAddrSpace(V);
}
bool TargetTransformInfo::isSingleThreaded() const {
return TTIImpl->isSingleThreaded();
}
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);
}
bool TargetTransformInfo::preferPredicateOverEpilogue(
Loop *L, LoopInfo *LI, ScalarEvolution &SE, AssumptionCache &AC,
TargetLibraryInfo *TLI, DominatorTree *DT, LoopVectorizationLegality *LVL,
InterleavedAccessInfo *IAI) const {
return TTIImpl->preferPredicateOverEpilogue(L, LI, SE, AC, TLI, DT, LVL, IAI);
}
PredicationStyle TargetTransformInfo::emitGetActiveLaneMask() const {
return TTIImpl->emitGetActiveLaneMask();
}
Optional<Instruction *>
TargetTransformInfo::instCombineIntrinsic(InstCombiner &IC,
IntrinsicInst &II) const {
return TTIImpl->instCombineIntrinsic(IC, II);
}
Optional<Value *> TargetTransformInfo::simplifyDemandedUseBitsIntrinsic(
InstCombiner &IC, IntrinsicInst &II, APInt DemandedMask, KnownBits &Known,
bool &KnownBitsComputed) const {
return TTIImpl->simplifyDemandedUseBitsIntrinsic(IC, II, DemandedMask, Known,
KnownBitsComputed);
}
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::isLegalICmpImmediate(int64_t Imm) const {
return TTIImpl->isLegalICmpImmediate(Imm);
}
bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
int64_t BaseOffset,
bool HasBaseReg, int64_t Scale,
unsigned AddrSpace,
Instruction *I) const {
return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
Scale, AddrSpace, I);
}
bool TargetTransformInfo::isLSRCostLess(const LSRCost &C1,
const LSRCost &C2) const {
return TTIImpl->isLSRCostLess(C1, C2);
}
bool TargetTransformInfo::isNumRegsMajorCostOfLSR() const {
return TTIImpl->isNumRegsMajorCostOfLSR();
}
bool TargetTransformInfo::isProfitableLSRChainElement(Instruction *I) const {
return TTIImpl->isProfitableLSRChainElement(I);
}
bool TargetTransformInfo::canMacroFuseCmp() const {
return TTIImpl->canMacroFuseCmp();
}
bool TargetTransformInfo::canSaveCmp(Loop *L, BranchInst **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) const {
return TTIImpl->isLegalMaskedStore(DataType, Alignment);
}
bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType,
Align Alignment) const {
return TTIImpl->isLegalMaskedLoad(DataType, Alignment);
}
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) const {
return TTIImpl->isLegalAltInstr(VecTy, Opcode0, Opcode1, OpcodeMask);
}
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) const {
return TTIImpl->isLegalMaskedCompressStore(DataType);
}
bool TargetTransformInfo::isLegalMaskedExpandLoad(Type *DataType) const {
return TTIImpl->isLegalMaskedExpandLoad(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, int64_t 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);
}
bool TargetTransformInfo::shouldBuildRelLookupTables() const {
return TTIImpl->shouldBuildRelLookupTables();
}
bool TargetTransformInfo::useColdCCForColdCall(Function &F) const {
return TTIImpl->useColdCCForColdCall(F);
}
InstructionCost
TargetTransformInfo::getScalarizationOverhead(VectorType *Ty,
const APInt &DemandedElts,
bool Insert, bool Extract) const {
return TTIImpl->getScalarizationOverhead(Ty, DemandedElts, Insert, Extract);
}
InstructionCost TargetTransformInfo::getOperandsScalarizationOverhead(
ArrayRef<const Value *> Args, ArrayRef<Type *> Tys) const {
return TTIImpl->getOperandsScalarizationOverhead(Args, Tys);
}
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::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,
bool *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;
}
unsigned TargetTransformInfo::getNumberOfRegisters(unsigned ClassID) const {
return TTIImpl->getNumberOfRegisters(ClassID);
}
unsigned TargetTransformInfo::getRegisterClassForType(bool Vector,
Type *Ty) const {
return TTIImpl->getRegisterClassForType(Vector, Ty);
}
const char *TargetTransformInfo::getRegisterClassName(unsigned ClassID) const {
return TTIImpl->getRegisterClassName(ClassID);
}
TypeSize TargetTransformInfo::getRegisterBitWidth(
TargetTransformInfo::RegisterKind K) const {
return TTIImpl->getRegisterBitWidth(K);
}
unsigned TargetTransformInfo::getMinVectorRegisterBitWidth() const {
return TTIImpl->getMinVectorRegisterBitWidth();
}
Optional<unsigned> TargetTransformInfo::getMaxVScale() const {
return TTIImpl->getMaxVScale();
}
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) const {
return TTIImpl->getStoreMinimumVF(VF, ScalarMemTy, ScalarValTy);
}
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();
}
llvm::Optional<unsigned>
TargetTransformInfo::getCacheSize(CacheLevel Level) const {
return TTIImpl->getCacheSize(Level);
}
llvm::Optional<unsigned>
TargetTransformInfo::getCacheAssociativity(CacheLevel Level) const {
return TTIImpl->getCacheAssociativity(Level);
}
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);
}
unsigned TargetTransformInfo::getMaxInterleaveFactor(unsigned VF) const {
return TTIImpl->getMaxInterleaveFactor(VF);
}
TargetTransformInfo::OperandValueInfo
TargetTransformInfo::getOperandInfo(const Value *V) {
OperandValueKind OpInfo = OK_AnyValue;
OperandValueProperties OpProps = 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 (isa<ConstantVector>(V) || isa<ConstantDataVector>(V)) {
OpInfo = OK_NonUniformConstantValue;
if (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)) {
bool AllPow2 = true, AllNegPow2 = true;
for (unsigned 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;
}
}
// 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 (Splat && (isa<Argument>(Splat) || isa<GlobalValue>(Splat)))
OpInfo = OK_UniformValue;
return {OpInfo, OpProps};
}
InstructionCost TargetTransformInfo::getArithmeticInstrCost(
unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind,
OperandValueInfo Op1Info, OperandValueInfo Op2Info,
ArrayRef<const Value *> Args, const Instruction *CxtI) const {
InstructionCost Cost =
TTIImpl->getArithmeticInstrCost(Opcode, Ty, CostKind,
Op1Info, Op2Info,
Args, CxtI);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}
InstructionCost TargetTransformInfo::getShuffleCost(
ShuffleKind Kind, VectorType *Ty, ArrayRef<int> Mask,
TTI::TargetCostKind CostKind, int Index, VectorType *SubTp,
ArrayRef<const Value *> Args) const {
InstructionCost Cost =
TTIImpl->getShuffleCost(Kind, Ty, Mask, CostKind, Index, SubTp, Args);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}
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) const {
InstructionCost Cost =
TTIImpl->getExtractWithExtendCost(Opcode, Dst, VecTy, Index);
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, const Instruction *I) const {
assert((I == nullptr || I->getOpcode() == Opcode) &&
"Opcode should reflect passed instruction.");
InstructionCost Cost =
TTIImpl->getCmpSelInstrCost(Opcode, ValTy, CondTy, VecPred, CostKind, I);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}
InstructionCost TargetTransformInfo::getVectorInstrCost(unsigned Opcode,
Type *Val,
unsigned Index) 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(Opcode, Val, Index);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}
InstructionCost TargetTransformInfo::getVectorInstrCost(const Instruction &I,
Type *Val,
unsigned Index) 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, Index);
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) {
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::getMaskedMemoryOpCost(
unsigned Opcode, Type *Src, Align Alignment, unsigned AddressSpace,
TTI::TargetCostKind CostKind) const {
InstructionCost Cost = TTIImpl->getMaskedMemoryOpCost(Opcode, Src, Alignment,
AddressSpace, CostKind);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}
InstructionCost TargetTransformInfo::getGatherScatterOpCost(
unsigned Opcode, Type *DataTy, const Value *Ptr, bool VariableMask,
Align Alignment, TTI::TargetCostKind CostKind, const Instruction *I) const {
InstructionCost Cost = TTIImpl->getGatherScatterOpCost(
Opcode, DataTy, Ptr, VariableMask, Alignment, CostKind, 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::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 *Tp, ScalarEvolution *SE,
const SCEV *Ptr) const {
InstructionCost Cost = TTIImpl->getAddressComputationCost(Tp, SE, Ptr);
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;
}
InstructionCost TargetTransformInfo::getArithmeticReductionCost(
unsigned Opcode, VectorType *Ty, 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(
VectorType *Ty, VectorType *CondTy, bool IsUnsigned,
TTI::TargetCostKind CostKind) const {
InstructionCost Cost =
TTIImpl->getMinMaxReductionCost(Ty, CondTy, IsUnsigned, CostKind);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}
InstructionCost TargetTransformInfo::getExtendedReductionCost(
unsigned Opcode, bool IsUnsigned, Type *ResTy, VectorType *Ty,
Optional<FastMathFlags> FMF, TTI::TargetCostKind CostKind) const {
return TTIImpl->getExtendedReductionCost(Opcode, IsUnsigned, ResTy, Ty, FMF,
CostKind);
}
InstructionCost TargetTransformInfo::getMulAccReductionCost(
bool IsUnsigned, Type *ResTy, VectorType *Ty,
TTI::TargetCostKind CostKind) const {
return TTIImpl->getMulAccReductionCost(IsUnsigned, 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) const {
return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType);
}
Type *TargetTransformInfo::getMemcpyLoopLoweringType(
LLVMContext &Context, Value *Length, unsigned SrcAddrSpace,
unsigned DestAddrSpace, unsigned SrcAlign, unsigned DestAlign,
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,
unsigned SrcAlign, unsigned DestAlign,
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);
}
bool TargetTransformInfo::areTypesABICompatible(
const Function *Caller, const Function *Callee,
const 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::preferInLoopReduction(unsigned Opcode, Type *Ty,
ReductionFlags Flags) const {
return TTIImpl->preferInLoopReduction(Opcode, Ty, Flags);
}
bool TargetTransformInfo::preferPredicatedReductionSelect(
unsigned Opcode, Type *Ty, ReductionFlags Flags) const {
return TTIImpl->preferPredicatedReductionSelect(Opcode, Ty, Flags);
}
bool TargetTransformInfo::preferEpilogueVectorization() const {
return TTIImpl->preferEpilogueVectorization();
}
TargetTransformInfo::VPLegalization
TargetTransformInfo::getVPLegalizationStrategy(const VPIntrinsic &VPI) const {
return TTIImpl->getVPLegalizationStrategy(VPI);
}
bool TargetTransformInfo::shouldExpandReduction(const IntrinsicInst *II) const {
return TTIImpl->shouldExpandReduction(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(unsigned Opcode, Type *DataType,
Align Alignment) const {
return TTIImpl->hasActiveVectorLength(Opcode, DataType, Alignment);
}
TargetTransformInfo::Concept::~Concept() = 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 &) {
return TTICallback(F);
}
AnalysisKey TargetIRAnalysis::Key;
TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(const Function &F) {
return Result(F.getParent()->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) {
initializeTargetTransformInfoWrapperPassPass(
*PassRegistry::getPassRegistry());
}
TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
TargetIRAnalysis TIRA)
: ImmutablePass(ID), TIRA(std::move(TIRA)) {
initializeTargetTransformInfoWrapperPassPass(
*PassRegistry::getPassRegistry());
}
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));
}
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