Base class which can be used to help build a TTI implementation. More...

#include "llvm/CodeGen/BasicTTIImpl.h"

Inheritance diagram for llvm::BasicTTIImplBase< T >:

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Collaboration diagram for llvm::BasicTTIImplBase< T >:

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Public Member Functions
Scalar TTI Implementations
bool	allowsMisalignedMemoryAccesses (LLVMContext &Context, unsigned BitWidth, unsigned AddressSpace, Align Alignment, bool *Fast) const

bool	hasBranchDivergence ()

bool	useGPUDivergenceAnalysis ()

bool	isSourceOfDivergence (const Value *V)

bool	isAlwaysUniform (const Value *V)

unsigned	getFlatAddressSpace ()

bool	collectFlatAddressOperands (SmallVectorImpl< int > &OpIndexes, Intrinsic::ID IID) const

bool	isNoopAddrSpaceCast (unsigned FromAS, unsigned ToAS) const

unsigned	getAssumedAddrSpace (const Value *V) const

std::pair< const Value *, unsigned >	getPredicatedAddrSpace (const Value *V) const

Value *	rewriteIntrinsicWithAddressSpace (IntrinsicInst II, Value OldV, Value *NewV) const

bool	isLegalAddImmediate (int64_t imm)

bool	isLegalICmpImmediate (int64_t imm)

bool	isLegalAddressingMode (Type Ty, GlobalValue BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale, unsigned AddrSpace, Instruction *I=nullptr)

unsigned	getStoreMinimumVF (unsigned VF, Type ScalarMemTy, Type ScalarValTy) const

bool	isIndexedLoadLegal (TTI::MemIndexedMode M, Type *Ty, const DataLayout &DL) const

bool	isIndexedStoreLegal (TTI::MemIndexedMode M, Type *Ty, const DataLayout &DL) const

bool	isLSRCostLess (TTI::LSRCost C1, TTI::LSRCost C2)

bool	isNumRegsMajorCostOfLSR ()

bool	isProfitableLSRChainElement (Instruction *I)

InstructionCost	getScalingFactorCost (Type Ty, GlobalValue BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale, unsigned AddrSpace)

bool	isTruncateFree (Type Ty1, Type Ty2)

bool	isProfitableToHoist (Instruction *I)

bool	useAA () const

bool	isTypeLegal (Type *Ty)

unsigned	getRegUsageForType (Type *Ty)

InstructionCost	getGEPCost (Type PointeeType, const Value Ptr, ArrayRef< const Value * > Operands, TTI::TargetCostKind CostKind)

unsigned	getEstimatedNumberOfCaseClusters (const SwitchInst &SI, unsigned &JumpTableSize, ProfileSummaryInfo PSI, BlockFrequencyInfo BFI)

bool	shouldBuildLookupTables ()

bool	shouldBuildRelLookupTables () const

bool	haveFastSqrt (Type *Ty)

bool	isFCmpOrdCheaperThanFCmpZero (Type *Ty)

InstructionCost	getFPOpCost (Type *Ty)

unsigned	getInliningThresholdMultiplier ()

unsigned	adjustInliningThreshold (const CallBase *CB)

int	getInlinerVectorBonusPercent ()

void	getUnrollingPreferences (Loop L, ScalarEvolution &SE, TTI::UnrollingPreferences &UP, OptimizationRemarkEmitter ORE)

void	getPeelingPreferences (Loop *L, ScalarEvolution &SE, TTI::PeelingPreferences &PP)

bool	isHardwareLoopProfitable (Loop L, ScalarEvolution &SE, AssumptionCache &AC, TargetLibraryInfo LibInfo, HardwareLoopInfo &HWLoopInfo)

bool	preferPredicateOverEpilogue (Loop L, LoopInfo LI, ScalarEvolution &SE, AssumptionCache &AC, TargetLibraryInfo TLI, DominatorTree DT, LoopVectorizationLegality LVL, InterleavedAccessInfo IAI)

PredicationStyle	emitGetActiveLaneMask ()

Optional< Instruction * >	instCombineIntrinsic (InstCombiner &IC, IntrinsicInst &II)

Optional< Value * >	simplifyDemandedUseBitsIntrinsic (InstCombiner &IC, IntrinsicInst &II, APInt DemandedMask, KnownBits &Known, bool &KnownBitsComputed)

Optional< Value * >	simplifyDemandedVectorEltsIntrinsic (InstCombiner &IC, IntrinsicInst &II, APInt DemandedElts, APInt &UndefElts, APInt &UndefElts2, APInt &UndefElts3, std::function< void(Instruction *, unsigned, APInt, APInt &)> SimplifyAndSetOp)

virtual Optional< unsigned >	getCacheSize (TargetTransformInfo::CacheLevel Level) const

virtual Optional< unsigned >	getCacheAssociativity (TargetTransformInfo::CacheLevel Level) const

virtual unsigned	getCacheLineSize () const

virtual unsigned	getPrefetchDistance () const

virtual unsigned	getMinPrefetchStride (unsigned NumMemAccesses, unsigned NumStridedMemAccesses, unsigned NumPrefetches, bool HasCall) const

virtual unsigned	getMaxPrefetchIterationsAhead () const

virtual bool	enableWritePrefetching () const

virtual bool	shouldPrefetchAddressSpace (unsigned AS) const

Vector TTI Implementations
TypeSize	getRegisterBitWidth (TargetTransformInfo::RegisterKind K) const

Optional< unsigned >	getMaxVScale () const

Optional< unsigned >	getVScaleForTuning () const

InstructionCost	getScalarizationOverhead (VectorType *InTy, const APInt &DemandedElts, bool Insert, bool Extract)
	Estimate the overhead of scalarizing an instruction. More...

InstructionCost	getScalarizationOverhead (VectorType *InTy, bool Insert, bool Extract)
	Helper wrapper for the DemandedElts variant of getScalarizationOverhead. More...

InstructionCost	getOperandsScalarizationOverhead (ArrayRef< const Value * > Args, ArrayRef< Type * > Tys)
	Estimate the overhead of scalarizing an instructions unique non-constant operands. More...

InstructionCost	getScalarizationOverhead (VectorType RetTy, ArrayRef< const Value > Args, ArrayRef< Type * > Tys)
	Estimate the overhead of scalarizing the inputs and outputs of an instruction, with return type RetTy and arguments Args of type Tys. More...

std::pair< InstructionCost, MVT >	getTypeLegalizationCost (Type *Ty) const
	Estimate the cost of type-legalization and the legalized type. More...

unsigned	getMaxInterleaveFactor (unsigned VF)

InstructionCost	getArithmeticInstrCost (unsigned Opcode, Type Ty, TTI::TargetCostKind CostKind, TTI::OperandValueInfo Opd1Info={TTI::OK_AnyValue, TTI::OP_None}, TTI::OperandValueInfo Opd2Info={TTI::OK_AnyValue, TTI::OP_None}, ArrayRef< const Value > Args=ArrayRef< const Value * >(), const Instruction *CxtI=nullptr)

TTI::ShuffleKind	improveShuffleKindFromMask (TTI::ShuffleKind Kind, ArrayRef< int > Mask) const

InstructionCost	getShuffleCost (TTI::ShuffleKind Kind, VectorType Tp, ArrayRef< int > Mask, TTI::TargetCostKind CostKind, int Index, VectorType SubTp, ArrayRef< const Value * > Args=None)

InstructionCost	getCastInstrCost (unsigned Opcode, Type Dst, Type Src, TTI::CastContextHint CCH, TTI::TargetCostKind CostKind, const Instruction *I=nullptr)

InstructionCost	getExtractWithExtendCost (unsigned Opcode, Type Dst, VectorType VecTy, unsigned Index)

InstructionCost	getCFInstrCost (unsigned Opcode, TTI::TargetCostKind CostKind, const Instruction *I=nullptr)

InstructionCost	getCmpSelInstrCost (unsigned Opcode, Type ValTy, Type CondTy, CmpInst::Predicate VecPred, TTI::TargetCostKind CostKind, const Instruction *I=nullptr)

InstructionCost	getVectorInstrCost (unsigned Opcode, Type *Val, unsigned Index)

InstructionCost	getVectorInstrCost (const Instruction &I, Type *Val, unsigned Index)

InstructionCost	getReplicationShuffleCost (Type *EltTy, int ReplicationFactor, int VF, const APInt &DemandedDstElts, TTI::TargetCostKind CostKind)

InstructionCost	getMemoryOpCost (unsigned Opcode, Type Src, MaybeAlign Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, TTI::OperandValueInfo OpInfo={TTI::OK_AnyValue, TTI::OP_None}, const Instruction I=nullptr)

InstructionCost	getMaskedMemoryOpCost (unsigned Opcode, Type *DataTy, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind)

InstructionCost	getGatherScatterOpCost (unsigned Opcode, Type DataTy, const Value Ptr, bool VariableMask, Align Alignment, TTI::TargetCostKind CostKind, const Instruction *I=nullptr)

InstructionCost	getInterleavedMemoryOpCost (unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef< unsigned > Indices, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, bool UseMaskForCond=false, bool UseMaskForGaps=false)

InstructionCost	getIntrinsicInstrCost (const IntrinsicCostAttributes &ICA, TTI::TargetCostKind CostKind)
	Get intrinsic cost based on arguments. More...

InstructionCost	getTypeBasedIntrinsicInstrCost (const IntrinsicCostAttributes &ICA, TTI::TargetCostKind CostKind)
	Get intrinsic cost based on argument types. More...

InstructionCost	getCallInstrCost (Function F, Type RetTy, ArrayRef< Type * > Tys, TTI::TargetCostKind CostKind)
	Compute a cost of the given call instruction. More...

unsigned	getNumberOfParts (Type *Tp)

InstructionCost	getAddressComputationCost (Type Ty, ScalarEvolution , const SCEV *)

InstructionCost	getTreeReductionCost (unsigned Opcode, VectorType *Ty, TTI::TargetCostKind CostKind)
	Try to calculate arithmetic and shuffle op costs for reduction intrinsics. More...

InstructionCost	getOrderedReductionCost (unsigned Opcode, VectorType *Ty, TTI::TargetCostKind CostKind)
	Try to calculate the cost of performing strict (in-order) reductions, which involves doing a sequence of floating point additions in lane order, starting with an initial value. More...

InstructionCost	getArithmeticReductionCost (unsigned Opcode, VectorType *Ty, Optional< FastMathFlags > FMF, TTI::TargetCostKind CostKind)

InstructionCost	getMinMaxReductionCost (VectorType Ty, VectorType CondTy, bool IsUnsigned, TTI::TargetCostKind CostKind)
	Try to calculate op costs for min/max reduction operations. More...

InstructionCost	getExtendedReductionCost (unsigned Opcode, bool IsUnsigned, Type ResTy, VectorType Ty, Optional< FastMathFlags > FMF, TTI::TargetCostKind CostKind)

InstructionCost	getMulAccReductionCost (bool IsUnsigned, Type ResTy, VectorType Ty, TTI::TargetCostKind CostKind)

InstructionCost	getVectorSplitCost ()

Public Member Functions inherited from llvm::TargetTransformInfoImplCRTPBase< T >
InstructionCost	getGEPCost (Type PointeeType, const Value Ptr, ArrayRef< const Value * > Operands, TTI::TargetCostKind CostKind)

InstructionCost	getInstructionCost (const User U, ArrayRef< const Value > Operands, TTI::TargetCostKind CostKind)

bool	isExpensiveToSpeculativelyExecute (const Instruction *I)

InstructionCost	getGEPCost (Type PointeeType, const Value Ptr, ArrayRef< const Value * > Operands, TTI::TargetCostKind CostKind) const

Public Member Functions inherited from llvm::TargetTransformInfoImplBase
	TargetTransformInfoImplBase (const TargetTransformInfoImplBase &Arg)=default

	TargetTransformInfoImplBase (TargetTransformInfoImplBase &&Arg)

const DataLayout &	getDataLayout () const

InstructionCost	getGEPCost (Type PointeeType, const Value Ptr, ArrayRef< const Value * > Operands, TTI::TargetCostKind CostKind) const

unsigned	getEstimatedNumberOfCaseClusters (const SwitchInst &SI, unsigned &JTSize, ProfileSummaryInfo PSI, BlockFrequencyInfo BFI) const

unsigned	getInliningThresholdMultiplier () const

unsigned	adjustInliningThreshold (const CallBase *CB) const

int	getInlinerVectorBonusPercent () const

InstructionCost	getMemcpyCost (const Instruction *I) const

BranchProbability	getPredictableBranchThreshold () const

bool	hasBranchDivergence () const

bool	useGPUDivergenceAnalysis () const

bool	isSourceOfDivergence (const Value *V) const

bool	isAlwaysUniform (const Value *V) const

unsigned	getFlatAddressSpace () const

bool	collectFlatAddressOperands (SmallVectorImpl< int > &OpIndexes, Intrinsic::ID IID) const

bool	isNoopAddrSpaceCast (unsigned, unsigned) const

bool	canHaveNonUndefGlobalInitializerInAddressSpace (unsigned AS) const

unsigned	getAssumedAddrSpace (const Value *V) const

std::pair< const Value *, unsigned >	getPredicatedAddrSpace (const Value *V) const

Value *	rewriteIntrinsicWithAddressSpace (IntrinsicInst II, Value OldV, Value *NewV) const

bool	isLoweredToCall (const Function *F) const

bool	isHardwareLoopProfitable (Loop L, ScalarEvolution &SE, AssumptionCache &AC, TargetLibraryInfo LibInfo, HardwareLoopInfo &HWLoopInfo) const

bool	preferPredicateOverEpilogue (Loop L, LoopInfo LI, ScalarEvolution &SE, AssumptionCache &AC, TargetLibraryInfo TLI, DominatorTree DT, LoopVectorizationLegality LVL, InterleavedAccessInfo IAI) const

PredicationStyle	emitGetActiveLaneMask () const

Optional< Instruction * >	instCombineIntrinsic (InstCombiner &IC, IntrinsicInst &II) const

Optional< Value * >	simplifyDemandedUseBitsIntrinsic (InstCombiner &IC, IntrinsicInst &II, APInt DemandedMask, KnownBits &Known, bool &KnownBitsComputed) const

Optional< Value * >	simplifyDemandedVectorEltsIntrinsic (InstCombiner &IC, IntrinsicInst &II, APInt DemandedElts, APInt &UndefElts, APInt &UndefElts2, APInt &UndefElts3, std::function< void(Instruction *, unsigned, APInt, APInt &)> SimplifyAndSetOp) const

void	getUnrollingPreferences (Loop , ScalarEvolution &, TTI::UnrollingPreferences &, OptimizationRemarkEmitter ) const

void	getPeelingPreferences (Loop *, ScalarEvolution &, TTI::PeelingPreferences &) const

bool	isLegalAddImmediate (int64_t Imm) const

bool	isLegalICmpImmediate (int64_t Imm) const

bool	isLegalAddressingMode (Type Ty, GlobalValue BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale, unsigned AddrSpace, Instruction *I=nullptr) const

bool	isLSRCostLess (const TTI::LSRCost &C1, const TTI::LSRCost &C2) const

bool	isNumRegsMajorCostOfLSR () const

bool	isProfitableLSRChainElement (Instruction *I) const

bool	canMacroFuseCmp () const

bool	canSaveCmp (Loop L, BranchInst BI, ScalarEvolution SE, LoopInfo LI, DominatorTree DT, AssumptionCache AC, TargetLibraryInfo LibInfo) const

TTI::AddressingModeKind	getPreferredAddressingMode (const Loop L, ScalarEvolution SE) const

bool	isLegalMaskedStore (Type *DataType, Align Alignment) const

bool	isLegalMaskedLoad (Type *DataType, Align Alignment) const

bool	isLegalNTStore (Type *DataType, Align Alignment) const

bool	isLegalNTLoad (Type *DataType, Align Alignment) const

bool	isLegalBroadcastLoad (Type *ElementTy, ElementCount NumElements) const

bool	isLegalMaskedScatter (Type *DataType, Align Alignment) const

bool	isLegalMaskedGather (Type *DataType, Align Alignment) const

bool	forceScalarizeMaskedGather (VectorType *DataType, Align Alignment) const

bool	forceScalarizeMaskedScatter (VectorType *DataType, Align Alignment) const

bool	isLegalMaskedCompressStore (Type *DataType) const

bool	isLegalAltInstr (VectorType *VecTy, unsigned Opcode0, unsigned Opcode1, const SmallBitVector &OpcodeMask) const

bool	isLegalMaskedExpandLoad (Type *DataType) const

bool	enableOrderedReductions () const

bool	hasDivRemOp (Type *DataType, bool IsSigned) const

bool	hasVolatileVariant (Instruction *I, unsigned AddrSpace) const

bool	prefersVectorizedAddressing () const

InstructionCost	getScalingFactorCost (Type Ty, GlobalValue BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale, unsigned AddrSpace) const

bool	LSRWithInstrQueries () const

bool	isTruncateFree (Type Ty1, Type Ty2) const

bool	isProfitableToHoist (Instruction *I) const

bool	useAA () const

bool	isTypeLegal (Type *Ty) const

unsigned	getRegUsageForType (Type *Ty) const

bool	shouldBuildLookupTables () const

bool	shouldBuildLookupTablesForConstant (Constant *C) const

bool	shouldBuildRelLookupTables () const

bool	useColdCCForColdCall (Function &F) const

InstructionCost	getScalarizationOverhead (VectorType *Ty, const APInt &DemandedElts, bool Insert, bool Extract) const

InstructionCost	getOperandsScalarizationOverhead (ArrayRef< const Value * > Args, ArrayRef< Type * > Tys) const

bool	supportsEfficientVectorElementLoadStore () const

bool	supportsTailCalls () const

bool	supportsTailCallFor (const CallBase *CB) const

bool	enableAggressiveInterleaving (bool LoopHasReductions) const

TTI::MemCmpExpansionOptions	enableMemCmpExpansion (bool OptSize, bool IsZeroCmp) const

bool	enableInterleavedAccessVectorization () const

bool	enableMaskedInterleavedAccessVectorization () const

bool	isFPVectorizationPotentiallyUnsafe () const

bool	allowsMisalignedMemoryAccesses (LLVMContext &Context, unsigned BitWidth, unsigned AddressSpace, Align Alignment, bool *Fast) const

TTI::PopcntSupportKind	getPopcntSupport (unsigned IntTyWidthInBit) const

bool	haveFastSqrt (Type *Ty) const

bool	isExpensiveToSpeculativelyExecute (const Instruction *I)

bool	isFCmpOrdCheaperThanFCmpZero (Type *Ty) const

InstructionCost	getFPOpCost (Type *Ty) const

InstructionCost	getIntImmCodeSizeCost (unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty) const

InstructionCost	getIntImmCost (const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind) const

InstructionCost	getIntImmCostInst (unsigned Opcode, unsigned Idx, const APInt &Imm, Type Ty, TTI::TargetCostKind CostKind, Instruction Inst=nullptr) const

InstructionCost	getIntImmCostIntrin (Intrinsic::ID IID, unsigned Idx, const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind) const

unsigned	getNumberOfRegisters (unsigned ClassID) const

unsigned	getRegisterClassForType (bool Vector, Type *Ty=nullptr) const

const char *	getRegisterClassName (unsigned ClassID) const

TypeSize	getRegisterBitWidth (TargetTransformInfo::RegisterKind K) const

unsigned	getMinVectorRegisterBitWidth () const

Optional< unsigned >	getMaxVScale () const

Optional< unsigned >	getVScaleForTuning () const

bool	shouldMaximizeVectorBandwidth (TargetTransformInfo::RegisterKind K) const

ElementCount	getMinimumVF (unsigned ElemWidth, bool IsScalable) const

unsigned	getMaximumVF (unsigned ElemWidth, unsigned Opcode) const

unsigned	getStoreMinimumVF (unsigned VF, Type , Type ) const

bool	shouldConsiderAddressTypePromotion (const Instruction &I, bool &AllowPromotionWithoutCommonHeader) const

unsigned	getCacheLineSize () const

llvm::Optional< unsigned >	getCacheSize (TargetTransformInfo::CacheLevel Level) const

llvm::Optional< unsigned >	getCacheAssociativity (TargetTransformInfo::CacheLevel Level) const

unsigned	getPrefetchDistance () const

unsigned	getMinPrefetchStride (unsigned NumMemAccesses, unsigned NumStridedMemAccesses, unsigned NumPrefetches, bool HasCall) const

unsigned	getMaxPrefetchIterationsAhead () const

bool	enableWritePrefetching () const

bool	shouldPrefetchAddressSpace (unsigned AS) const

unsigned	getMaxInterleaveFactor (unsigned VF) const

InstructionCost	getArithmeticInstrCost (unsigned Opcode, Type Ty, TTI::TargetCostKind CostKind, TTI::OperandValueInfo Opd1Info, TTI::OperandValueInfo Opd2Info, ArrayRef< const Value > Args, const Instruction *CxtI=nullptr) const

InstructionCost	getShuffleCost (TTI::ShuffleKind Kind, VectorType Ty, ArrayRef< int > Mask, TTI::TargetCostKind CostKind, int Index, VectorType SubTp, ArrayRef< const Value * > Args=None) const

InstructionCost	getCastInstrCost (unsigned Opcode, Type Dst, Type Src, TTI::CastContextHint CCH, TTI::TargetCostKind CostKind, const Instruction *I) const

InstructionCost	getExtractWithExtendCost (unsigned Opcode, Type Dst, VectorType VecTy, unsigned Index) const

InstructionCost	getCFInstrCost (unsigned Opcode, TTI::TargetCostKind CostKind, const Instruction *I=nullptr) const

InstructionCost	getCmpSelInstrCost (unsigned Opcode, Type ValTy, Type CondTy, CmpInst::Predicate VecPred, TTI::TargetCostKind CostKind, const Instruction *I) const

InstructionCost	getVectorInstrCost (unsigned Opcode, Type *Val, unsigned Index) const

InstructionCost	getVectorInstrCost (const Instruction &I, Type *Val, unsigned Index) const

unsigned	getReplicationShuffleCost (Type *EltTy, int ReplicationFactor, int VF, const APInt &DemandedDstElts, TTI::TargetCostKind CostKind)

InstructionCost	getMemoryOpCost (unsigned Opcode, Type Src, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, TTI::OperandValueInfo OpInfo, const Instruction I) const

InstructionCost	getVPMemoryOpCost (unsigned Opcode, Type Src, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, const Instruction I) const

InstructionCost	getMaskedMemoryOpCost (unsigned Opcode, Type *Src, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind) const

InstructionCost	getGatherScatterOpCost (unsigned Opcode, Type DataTy, const Value Ptr, bool VariableMask, Align Alignment, TTI::TargetCostKind CostKind, const Instruction *I=nullptr) const

unsigned	getInterleavedMemoryOpCost (unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef< unsigned > Indices, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, bool UseMaskForCond, bool UseMaskForGaps) const

InstructionCost	getIntrinsicInstrCost (const IntrinsicCostAttributes &ICA, TTI::TargetCostKind CostKind) const

InstructionCost	getCallInstrCost (Function F, Type RetTy, ArrayRef< Type * > Tys, TTI::TargetCostKind CostKind) const

unsigned	getNumberOfParts (Type *Tp) const

InstructionCost	getAddressComputationCost (Type Tp, ScalarEvolution , const SCEV *) const

InstructionCost	getArithmeticReductionCost (unsigned, VectorType *, Optional< FastMathFlags > FMF, TTI::TargetCostKind) const

InstructionCost	getMinMaxReductionCost (VectorType , VectorType , bool, TTI::TargetCostKind) const

InstructionCost	getExtendedReductionCost (unsigned Opcode, bool IsUnsigned, Type ResTy, VectorType Ty, Optional< FastMathFlags > FMF, TTI::TargetCostKind CostKind) const

InstructionCost	getMulAccReductionCost (bool IsUnsigned, Type ResTy, VectorType Ty, TTI::TargetCostKind CostKind) const

InstructionCost	getCostOfKeepingLiveOverCall (ArrayRef< Type * > Tys) const

bool	getTgtMemIntrinsic (IntrinsicInst *Inst, MemIntrinsicInfo &Info) const

unsigned	getAtomicMemIntrinsicMaxElementSize () const

Value *	getOrCreateResultFromMemIntrinsic (IntrinsicInst Inst, Type ExpectedType) const

Type *	getMemcpyLoopLoweringType (LLVMContext &Context, Value *Length, unsigned SrcAddrSpace, unsigned DestAddrSpace, unsigned SrcAlign, unsigned DestAlign, Optional< uint32_t > AtomicElementSize) const

void	getMemcpyLoopResidualLoweringType (SmallVectorImpl< Type * > &OpsOut, LLVMContext &Context, unsigned RemainingBytes, unsigned SrcAddrSpace, unsigned DestAddrSpace, unsigned SrcAlign, unsigned DestAlign, Optional< uint32_t > AtomicCpySize) const

bool	areInlineCompatible (const Function Caller, const Function Callee) const

bool	areTypesABICompatible (const Function Caller, const Function Callee, const ArrayRef< Type * > &Types) const

bool	isIndexedLoadLegal (TTI::MemIndexedMode Mode, Type *Ty, const DataLayout &DL) const

bool	isIndexedStoreLegal (TTI::MemIndexedMode Mode, Type *Ty, const DataLayout &DL) const

unsigned	getLoadStoreVecRegBitWidth (unsigned AddrSpace) const

bool	isLegalToVectorizeLoad (LoadInst *LI) const

bool	isLegalToVectorizeStore (StoreInst *SI) const

bool	isLegalToVectorizeLoadChain (unsigned ChainSizeInBytes, Align Alignment, unsigned AddrSpace) const

bool	isLegalToVectorizeStoreChain (unsigned ChainSizeInBytes, Align Alignment, unsigned AddrSpace) const

bool	isLegalToVectorizeReduction (const RecurrenceDescriptor &RdxDesc, ElementCount VF) const

bool	isElementTypeLegalForScalableVector (Type *Ty) const

unsigned	getLoadVectorFactor (unsigned VF, unsigned LoadSize, unsigned ChainSizeInBytes, VectorType *VecTy) const

unsigned	getStoreVectorFactor (unsigned VF, unsigned StoreSize, unsigned ChainSizeInBytes, VectorType *VecTy) const

bool	preferInLoopReduction (unsigned Opcode, Type *Ty, TTI::ReductionFlags Flags) const

bool	preferPredicatedReductionSelect (unsigned Opcode, Type *Ty, TTI::ReductionFlags Flags) const

bool	shouldExpandReduction (const IntrinsicInst *II) const

unsigned	getGISelRematGlobalCost () const

unsigned	getMinTripCountTailFoldingThreshold () const

bool	supportsScalableVectors () const

bool	enableScalableVectorization () const

bool	hasActiveVectorLength (unsigned Opcode, Type *DataType, Align Alignment) const

TargetTransformInfo::VPLegalization	getVPLegalizationStrategy (const VPIntrinsic &PI) const

Protected Member Functions
	BasicTTIImplBase (const TargetMachine *TM, const DataLayout &DL)

virtual	~BasicTTIImplBase ()=default

Protected Member Functions inherited from llvm::TargetTransformInfoImplCRTPBase< T >
	TargetTransformInfoImplCRTPBase (const DataLayout &DL)

Protected Member Functions inherited from llvm::TargetTransformInfoImplBase
	TargetTransformInfoImplBase (const DataLayout &DL)

unsigned	minRequiredElementSize (const Value *Val, bool &isSigned) const

bool	isStridedAccess (const SCEV *Ptr) const

const SCEVConstant *	getConstantStrideStep (ScalarEvolution SE, const SCEV Ptr) const

bool	isConstantStridedAccessLessThan (ScalarEvolution SE, const SCEV Ptr, int64_t MergeDistance) const

Protected Attributes
const DataLayout &	DL

Protected Attributes inherited from llvm::TargetTransformInfoImplBase
const DataLayout &	DL

Additional Inherited Members
Protected Types inherited from llvm::TargetTransformInfoImplBase
typedef TargetTransformInfo	TTI

Detailed Description

template<typename T>
class llvm::BasicTTIImplBase< T >

Base class which can be used to help build a TTI implementation.

This class provides as much implementation of the TTI interface as is possible using the target independent parts of the code generator.

In order to subclass it, your class must implement a getST() method to return the subtarget, and a getTLI() method to return the target lowering. We need these methods implemented in the derived class so that this class doesn't have to duplicate storage for them.

Definition at line 77 of file BasicTTIImpl.h.

Constructor & Destructor Documentation

◆ BasicTTIImplBase()

template<typename T >

llvm::BasicTTIImplBase< T >::BasicTTIImplBase	(	const TargetMachine *	TM,
		const DataLayout &	DL
	)

inlineexplicitprotected

Definition at line 247 of file BasicTTIImpl.h.

◆ ~BasicTTIImplBase()

template<typename T >

virtual llvm::BasicTTIImplBase< T >::~BasicTTIImplBase ( )

protectedvirtualdefault

Member Function Documentation

◆ adjustInliningThreshold()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::adjustInliningThreshold ( const CallBase * CB )

inline

Definition at line 514 of file BasicTTIImpl.h.

◆ allowsMisalignedMemoryAccesses()

template<typename T >

bool llvm::BasicTTIImplBase< T >::allowsMisalignedMemoryAccesses	(	LLVMContext &	Context,
		unsigned	BitWidth,
		unsigned	AddressSpace,
		Align	Alignment,
		bool *	Fast
	)		const

inline

Definition at line 256 of file BasicTTIImpl.h.

◆ collectFlatAddressOperands()

template<typename T >

bool llvm::BasicTTIImplBase< T >::collectFlatAddressOperands	(	SmallVectorImpl< int > &	OpIndexes,
		Intrinsic::ID	IID
	)		const

inline

Definition at line 277 of file BasicTTIImpl.h.

◆ emitGetActiveLaneMask()

template<typename T >

PredicationStyle llvm::BasicTTIImplBase< T >::emitGetActiveLaneMask ( )

inline

Definition at line 613 of file BasicTTIImpl.h.

◆ enableWritePrefetching()

template<typename T >

virtual bool llvm::BasicTTIImplBase< T >::enableWritePrefetching ( ) const

inlinevirtual

Definition at line 678 of file BasicTTIImpl.h.

◆ getAddressComputationCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getAddressComputationCost	(	Type *	Ty,
		ScalarEvolution *	,
		const SCEV *
	)

inline

Definition at line 2160 of file BasicTTIImpl.h.

◆ getArithmeticInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getArithmeticInstrCost	(	unsigned	Opcode,
		Type *	Ty,
		TTI::TargetCostKind	CostKind,
		TTI::OperandValueInfo	Opd1Info = `{TTI::OK_AnyValue, TTI::OP_None}`,
		TTI::OperandValueInfo	Opd2Info = `{TTI::OK_AnyValue, TTI::OP_None}`,
		ArrayRef< const Value * >	Args = `ArrayRef<const Value *>()`,
		const Instruction *	CxtI = `nullptr`
	)

inline

Definition at line 819 of file BasicTTIImpl.h.

Referenced by llvm::WebAssemblyTTIImpl::getArithmeticInstrCost().

◆ getArithmeticReductionCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getArithmeticReductionCost	(	unsigned	Opcode,
		VectorType *	Ty,
		Optional< FastMathFlags >	FMF,
		TTI::TargetCostKind	CostKind
	)

inline

Definition at line 2278 of file BasicTTIImpl.h.

◆ getAssumedAddrSpace()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getAssumedAddrSpace ( const Value * V ) const

inline

Definition at line 286 of file BasicTTIImpl.h.

◆ getCacheAssociativity()

template<typename T >

virtual Optional<unsigned> llvm::BasicTTIImplBase< T >::getCacheAssociativity ( TargetTransformInfo::CacheLevel Level ) const

inlinevirtual

Reimplemented in llvm::X86TTIImpl.

Definition at line 648 of file BasicTTIImpl.h.

◆ getCacheLineSize()

template<typename T >

virtual unsigned llvm::BasicTTIImplBase< T >::getCacheLineSize ( ) const

inlinevirtual

Definition at line 658 of file BasicTTIImpl.h.

◆ getCacheSize()

template<typename T >

virtual Optional<unsigned> llvm::BasicTTIImplBase< T >::getCacheSize ( TargetTransformInfo::CacheLevel Level ) const

inlinevirtual

Reimplemented in llvm::X86TTIImpl.

Definition at line 642 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCacheSize().

◆ getCallInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getCallInstrCost	(	Function *	F,
		Type *	RetTy,
		ArrayRef< Type * >	Tys,
		TTI::TargetCostKind	CostKind
	)

inline

Compute a cost of the given call instruction.

Compute the cost of calling function F with return type RetTy and argument types Tys. F might be nullptr, in this case the cost of an arbitrary call with the specified signature will be returned. This is used, for instance, when we estimate call of a vector counterpart of the given function.

Parameters

F	Called function, might be nullptr.
RetTy	Return value types.
Tys	Argument types.

Returns: The cost of Call instruction.

Definition at line 2149 of file BasicTTIImpl.h.

◆ getCastInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getCastInstrCost	(	unsigned	Opcode,
		Type *	Dst,
		Type *	Src,
		TTI::CastContextHint	CCH,
		TTI::TargetCostKind	CostKind,
		const Instruction *	I = `nullptr`
	)

inline

Definition at line 963 of file BasicTTIImpl.h.

◆ getCFInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getCFInstrCost	(	unsigned	Opcode,
		TTI::TargetCostKind	CostKind,
		const Instruction *	I = `nullptr`
	)

inline

Definition at line 1126 of file BasicTTIImpl.h.

◆ getCmpSelInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getCmpSelInstrCost	(	unsigned	Opcode,
		Type *	ValTy,
		Type *	CondTy,
		CmpInst::Predicate	VecPred,
		TTI::TargetCostKind	CostKind,
		const Instruction *	I = `nullptr`
	)

inline

Definition at line 1131 of file BasicTTIImpl.h.

◆ getEstimatedNumberOfCaseClusters()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getEstimatedNumberOfCaseClusters	(	const SwitchInst &	SI,
		unsigned &	JumpTableSize,
		ProfileSummaryInfo *	PSI,
		BlockFrequencyInfo *	BFI
	)

inline

Try to find the estimated number of clusters. Note that the number of clusters identified in this function could be different from the actual numbers found in lowering. This function ignore switches that are lowered with a mix of jump table / bit test / BTree. This function was initially intended to be used when estimating the cost of switch in inline cost heuristic, but it's a generic cost model to be used in other places (e.g., in loop unrolling).

Definition at line 402 of file BasicTTIImpl.h.

◆ getExtendedReductionCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getExtendedReductionCost	(	unsigned	Opcode,
		bool	IsUnsigned,
		Type *	ResTy,
		VectorType *	Ty,
		Optional< FastMathFlags >	FMF,
		TTI::TargetCostKind	CostKind
	)

inline

Definition at line 2351 of file BasicTTIImpl.h.

◆ getExtractWithExtendCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getExtractWithExtendCost	(	unsigned	Opcode,
		Type *	Dst,
		VectorType *	VecTy,
		unsigned	Index
	)

inline

Definition at line 1117 of file BasicTTIImpl.h.

◆ getFlatAddressSpace()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getFlatAddressSpace ( )

inline

Definition at line 272 of file BasicTTIImpl.h.

◆ getFPOpCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getFPOpCost ( Type * Ty )

inline

Definition at line 503 of file BasicTTIImpl.h.

◆ getGatherScatterOpCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getGatherScatterOpCost	(	unsigned	Opcode,
		Type *	DataTy,
		const Value *	Ptr,
		bool	VariableMask,
		Align	Alignment,
		TTI::TargetCostKind	CostKind,
		const Instruction *	I = `nullptr`
	)

inline

Definition at line 1276 of file BasicTTIImpl.h.

◆ getGEPCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getGEPCost	(	Type *	PointeeType,
		const Value *	Ptr,
		ArrayRef< const Value * >	Operands,
		TTI::TargetCostKind	CostKind
	)

inline

Definition at line 396 of file BasicTTIImpl.h.

◆ getInlinerVectorBonusPercent()

template<typename T >

int llvm::BasicTTIImplBase< T >::getInlinerVectorBonusPercent ( )

inline

Definition at line 516 of file BasicTTIImpl.h.

◆ getInliningThresholdMultiplier()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getInliningThresholdMultiplier ( )

inline

Definition at line 513 of file BasicTTIImpl.h.

◆ getInterleavedMemoryOpCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getInterleavedMemoryOpCost	(	unsigned	Opcode,
		Type *	VecTy,
		unsigned	Factor,
		ArrayRef< unsigned >	Indices,
		Align	Alignment,
		unsigned	AddressSpace,
		TTI::TargetCostKind	CostKind,
		bool	UseMaskForCond = `false`,
		bool	UseMaskForGaps = `false`
	)

inline

Definition at line 1285 of file BasicTTIImpl.h.

◆ getIntrinsicInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getIntrinsicInstrCost	(	const IntrinsicCostAttributes &	ICA,
		TTI::TargetCostKind	CostKind
	)

inline

Get intrinsic cost based on arguments.

Definition at line 1429 of file BasicTTIImpl.h.

◆ getMaskedMemoryOpCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getMaskedMemoryOpCost	(	unsigned	Opcode,
		Type *	DataTy,
		Align	Alignment,
		unsigned	AddressSpace,
		TTI::TargetCostKind	CostKind
	)

inline

Definition at line 1269 of file BasicTTIImpl.h.

◆ getMaxInterleaveFactor()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getMaxInterleaveFactor ( unsigned VF )

inline

Definition at line 817 of file BasicTTIImpl.h.

◆ getMaxPrefetchIterationsAhead()

template<typename T >

virtual unsigned llvm::BasicTTIImplBase< T >::getMaxPrefetchIterationsAhead ( ) const

inlinevirtual

Definition at line 674 of file BasicTTIImpl.h.

◆ getMaxVScale()

template<typename T >

Optional<unsigned> llvm::BasicTTIImplBase< T >::getMaxVScale ( ) const

inline

Definition at line 695 of file BasicTTIImpl.h.

◆ getMemoryOpCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getMemoryOpCost	(	unsigned	Opcode,
		Type *	Src,
		MaybeAlign	Alignment,
		unsigned	AddressSpace,
		TTI::TargetCostKind	CostKind,
		TTI::OperandValueInfo	OpInfo = `{TTI::OK_AnyValue, TTI::OP_None}`,
		const Instruction *	I = `nullptr`
	)

inline

Definition at line 1225 of file BasicTTIImpl.h.

◆ getMinMaxReductionCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getMinMaxReductionCost	(	VectorType *	Ty,
		VectorType *	CondTy,
		bool	IsUnsigned,
		TTI::TargetCostKind	CostKind
	)

inline

Try to calculate op costs for min/max reduction operations.

Parameters

CondTy Conditional type for the Select instruction.

Definition at line 2288 of file BasicTTIImpl.h.

◆ getMinPrefetchStride()

template<typename T >

virtual unsigned llvm::BasicTTIImplBase< T >::getMinPrefetchStride	(	unsigned	NumMemAccesses,
		unsigned	NumStridedMemAccesses,
		unsigned	NumPrefetches,
		bool	HasCall
	)		const

inlinevirtual

Reimplemented in llvm::SystemZTTIImpl.

Definition at line 666 of file BasicTTIImpl.h.

◆ getMulAccReductionCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getMulAccReductionCost	(	bool	IsUnsigned,
		Type *	ResTy,
		VectorType *	Ty,
		TTI::TargetCostKind	CostKind
	)

inline

Definition at line 2367 of file BasicTTIImpl.h.

◆ getNumberOfParts()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getNumberOfParts ( Type * Tp )

inline

Definition at line 2155 of file BasicTTIImpl.h.

◆ getOperandsScalarizationOverhead()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getOperandsScalarizationOverhead	(	ArrayRef< const Value * >	Args,
		ArrayRef< Type * >	Tys
	)

inline

Estimate the overhead of scalarizing an instructions unique non-constant operands.

The (potentially vector) types to use for each of argument are passes via Tys.

Definition at line 741 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost(), and llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getScalarizationOverhead().

◆ getOrderedReductionCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getOrderedReductionCost	(	unsigned	Opcode,
		VectorType *	Ty,
		TTI::TargetCostKind	CostKind
	)

inline

Try to calculate the cost of performing strict (in-order) reductions, which involves doing a sequence of floating point additions in lane order, starting with an initial value.

For example, consider a scalar initial value 'InitVal' of type float and a vector of type <4 x float>:

Vector = <float v0, float v1, float v2, float v3>

add1 = InitVal + v0 add2 = add1 + v1 add3 = add2 + v2 add4 = add3 + v3

As a simple estimate we can say the cost of such a reduction is 4 times the cost of a scalar FP addition. We can only estimate the costs for fixed-width vectors here because for scalable vectors we do not know the runtime number of operations.

Definition at line 2261 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getArithmeticReductionCost().

◆ getPeelingPreferences()

template<typename T >

void llvm::BasicTTIImplBase< T >::getPeelingPreferences	(	Loop *	L,
		ScalarEvolution &	SE,
		TTI::PeelingPreferences &	PP
	)

inline

Definition at line 590 of file BasicTTIImpl.h.

◆ getPredicatedAddrSpace()

template<typename T >

std::pair<const Value *, unsigned> llvm::BasicTTIImplBase< T >::getPredicatedAddrSpace ( const Value * V ) const

inline

Definition at line 291 of file BasicTTIImpl.h.

◆ getPrefetchDistance()

template<typename T >

virtual unsigned llvm::BasicTTIImplBase< T >::getPrefetchDistance ( ) const

inlinevirtual

Definition at line 662 of file BasicTTIImpl.h.

◆ getRegisterBitWidth()

template<typename T >

TypeSize llvm::BasicTTIImplBase< T >::getRegisterBitWidth ( TargetTransformInfo::RegisterKind K ) const

inline

Definition at line 691 of file BasicTTIImpl.h.

◆ getRegUsageForType()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getRegUsageForType ( Type * Ty )

inline

Definition at line 391 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getVectorInstrCost().

◆ getReplicationShuffleCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getReplicationShuffleCost	(	Type *	EltTy,
		int	ReplicationFactor,
		int	VF,
		const APInt &	DemandedDstElts,
		TTI::TargetCostKind	CostKind
	)

inline

Definition at line 1191 of file BasicTTIImpl.h.

◆ getScalarizationOverhead() [1/3]

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getScalarizationOverhead	(	VectorType *	InTy,
		bool	Insert,
		bool	Extract
	)

inline

Helper wrapper for the DemandedElts variant of getScalarizationOverhead.

Definition at line 728 of file BasicTTIImpl.h.

◆ getScalarizationOverhead() [2/3]

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getScalarizationOverhead	(	VectorType *	InTy,
		const APInt &	DemandedElts,
		bool	Insert,
		bool	Extract
	)

inline

Estimate the overhead of scalarizing an instruction.

Insert and Extract are set if the demanded result elements need to be inserted and/or extracted from vectors.

FIXME: a bitfield is not a reasonable abstraction for talking about which elements are needed from a scalable vector

Definition at line 701 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCastInstrCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCmpSelInstrCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getOperandsScalarizationOverhead(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getOrderedReductionCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getScalarizationOverhead(), and llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getTypeBasedIntrinsicInstrCost().

◆ getScalarizationOverhead() [3/3]

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getScalarizationOverhead	(	VectorType *	RetTy,
		ArrayRef< const Value * >	Args,
		ArrayRef< Type * >	Tys
	)

inline

Estimate the overhead of scalarizing the inputs and outputs of an instruction, with return type RetTy and arguments Args of type Tys.

If Args are unknown (empty), then the cost associated with one argument is added as a heuristic.

Definition at line 768 of file BasicTTIImpl.h.

◆ getScalingFactorCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getScalingFactorCost	(	Type *	Ty,
		GlobalValue *	BaseGV,
		int64_t	BaseOffset,
		bool	HasBaseReg,
		int64_t	Scale,
		unsigned	AddrSpace
	)

inline

Definition at line 363 of file BasicTTIImpl.h.

◆ getShuffleCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getShuffleCost	(	TTI::ShuffleKind	Kind,
		VectorType *	Tp,
		ArrayRef< int >	Mask,
		TTI::TargetCostKind	CostKind,
		int	Index,
		VectorType *	SubTp,
		ArrayRef< const Value * >	Args = `None`
	)

inline

Definition at line 933 of file BasicTTIImpl.h.

◆ getStoreMinimumVF()

template<typename T >

unsigned llvm::BasicTTIImplBase< T >::getStoreMinimumVF	(	unsigned	VF,
		Type *	ScalarMemTy,
		Type *	ScalarValTy
	)		const

inline

Definition at line 319 of file BasicTTIImpl.h.

◆ getTreeReductionCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getTreeReductionCost	(	unsigned	Opcode,
		VectorType *	Ty,
		TTI::TargetCostKind	CostKind
	)

inline

Try to calculate arithmetic and shuffle op costs for reduction intrinsics.

We're assuming that reduction operation are performing the following way:

val1 = shufflevector<n x t> val, <n x t> undef, <n x i32> <i32 n/2, i32 n/2 + 1, ..., i32 n, i32 undef, ..., i32 undef> -------------—v----------—/ -------—v---------—/ n/2 elements n/2 elements red1 = op <n x t> val, <n x t> val1 After this operation we have a vector red1 where only the first n/2 elements are meaningful, the second n/2 elements are undefined and can be dropped. All other operations are actually working with the vector of length n/2, not n, though the real vector length is still n. val2 = shufflevector<n x t> red1, <n x t> undef, <n x i32> <i32 n/4, i32 n/4 + 1, ..., i32 n/2, i32 undef, ..., i32 undef> -------------—v----------—/ -------—v---------—/ n/4 elements 3*n/4 elements red2 = op <n x t> red1, <n x t> val2 - working with the vector of length n/2, the resulting vector has length n/4 etc.

The cost model should take into account that the actual length of the vector is reduced on each iteration.

Definition at line 2186 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getArithmeticReductionCost().

◆ getTypeBasedIntrinsicInstrCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getTypeBasedIntrinsicInstrCost	(	const IntrinsicCostAttributes &	ICA,
		TTI::TargetCostKind	CostKind
	)

inline

Get intrinsic cost based on argument types.

If ScalarizationCostPassed is std::numeric_limits<unsigned>::max(), the cost of scalarizing the arguments and the return value will be computed based on types.

Definition at line 1650 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost().

◆ getTypeLegalizationCost()

template<typename T >

std::pair<InstructionCost, MVT> llvm::BasicTTIImplBase< T >::getTypeLegalizationCost ( Type * Ty ) const

inline

Estimate the cost of type-legalization and the legalized type.

Definition at line 783 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCastInstrCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCmpSelInstrCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getInterleavedMemoryOpCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getNumberOfParts(), and llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getTypeBasedIntrinsicInstrCost().

◆ getUnrollingPreferences()

template<typename T >

void llvm::BasicTTIImplBase< T >::getUnrollingPreferences	(	Loop *	L,
		ScalarEvolution &	SE,
		TTI::UnrollingPreferences &	UP,
		OptimizationRemarkEmitter *	ORE
	)

inline

Definition at line 518 of file BasicTTIImpl.h.

Referenced by llvm::RISCVTTIImpl::getUnrollingPreferences(), and llvm::ARMTTIImpl::getUnrollingPreferences().

◆ getVectorInstrCost() [1/2]

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getVectorInstrCost	(	const Instruction &	I,
		Type *	Val,
		unsigned	Index
	)

inline

Definition at line 1186 of file BasicTTIImpl.h.

◆ getVectorInstrCost() [2/2]

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getVectorInstrCost	(	unsigned	Opcode,
		Type *	Val,
		unsigned	Index
	)

inline

Definition at line 1181 of file BasicTTIImpl.h.

Referenced by llvm::WebAssemblyTTIImpl::getVectorInstrCost().

◆ getVectorSplitCost()

template<typename T >

InstructionCost llvm::BasicTTIImplBase< T >::getVectorSplitCost ( )

inline

Definition at line 2386 of file BasicTTIImpl.h.

◆ getVScaleForTuning()

template<typename T >

Optional<unsigned> llvm::BasicTTIImplBase< T >::getVScaleForTuning ( ) const

inline

Definition at line 696 of file BasicTTIImpl.h.

◆ hasBranchDivergence()

template<typename T >

bool llvm::BasicTTIImplBase< T >::hasBranchDivergence ( )

inline

Definition at line 264 of file BasicTTIImpl.h.

◆ haveFastSqrt()

template<typename T >

bool llvm::BasicTTIImplBase< T >::haveFastSqrt ( Type * Ty )

inline

Definition at line 492 of file BasicTTIImpl.h.

◆ improveShuffleKindFromMask()

template<typename T >

TTI::ShuffleKind llvm::BasicTTIImplBase< T >::improveShuffleKindFromMask	(	TTI::ShuffleKind	Kind,
		ArrayRef< int >	Mask
	)		const

inline

Definition at line 897 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getShuffleCost().

◆ instCombineIntrinsic()

template<typename T >

Optional<Instruction *> llvm::BasicTTIImplBase< T >::instCombineIntrinsic	(	InstCombiner &	IC,
		IntrinsicInst &	II
	)

inline

Definition at line 617 of file BasicTTIImpl.h.

◆ isAlwaysUniform()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isAlwaysUniform ( const Value * V )

inline

Definition at line 270 of file BasicTTIImpl.h.

◆ isFCmpOrdCheaperThanFCmpZero()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isFCmpOrdCheaperThanFCmpZero ( Type * Ty )

inline

Definition at line 499 of file BasicTTIImpl.h.

◆ isHardwareLoopProfitable()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isHardwareLoopProfitable	(	Loop *	L,
		ScalarEvolution &	SE,
		AssumptionCache &	AC,
		TargetLibraryInfo *	LibInfo,
		HardwareLoopInfo &	HWLoopInfo
	)

inline

Definition at line 598 of file BasicTTIImpl.h.

◆ isIndexedLoadLegal()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isIndexedLoadLegal	(	TTI::MemIndexedMode	M,
		Type *	Ty,
		const DataLayout &	DL
	)		const

inline

Definition at line 339 of file BasicTTIImpl.h.

◆ isIndexedStoreLegal()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isIndexedStoreLegal	(	TTI::MemIndexedMode	M,
		Type *	Ty,
		const DataLayout &	DL
	)		const

inline

Definition at line 345 of file BasicTTIImpl.h.

◆ isLegalAddImmediate()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isLegalAddImmediate ( int64_t imm )

inline

Definition at line 300 of file BasicTTIImpl.h.

◆ isLegalAddressingMode()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isLegalAddressingMode	(	Type *	Ty,
		GlobalValue *	BaseGV,
		int64_t	BaseOffset,
		bool	HasBaseReg,
		int64_t	Scale,
		unsigned	AddrSpace,
		Instruction *	I = `nullptr`
	)

inline

Definition at line 308 of file BasicTTIImpl.h.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getScalingFactorCost().

◆ isLegalICmpImmediate()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isLegalICmpImmediate ( int64_t imm )

inline

Definition at line 304 of file BasicTTIImpl.h.

◆ isLSRCostLess()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isLSRCostLess	(	TTI::LSRCost	C1,
		TTI::LSRCost	C2
	)

inline

Definition at line 351 of file BasicTTIImpl.h.

◆ isNoopAddrSpaceCast()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isNoopAddrSpaceCast	(	unsigned	FromAS,
		unsigned	ToAS
	)		const

inline

Definition at line 282 of file BasicTTIImpl.h.

◆ isNumRegsMajorCostOfLSR()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isNumRegsMajorCostOfLSR ( )

inline

Definition at line 355 of file BasicTTIImpl.h.

◆ isProfitableLSRChainElement()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isProfitableLSRChainElement ( Instruction * I )

inline

Definition at line 359 of file BasicTTIImpl.h.

◆ isProfitableToHoist()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isProfitableToHoist ( Instruction * I )

inline

Definition at line 380 of file BasicTTIImpl.h.

◆ isSourceOfDivergence()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isSourceOfDivergence ( const Value * V )

inline

Definition at line 268 of file BasicTTIImpl.h.

◆ isTruncateFree()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isTruncateFree	(	Type *	Ty1,
		Type *	Ty2
	)

inline

Definition at line 376 of file BasicTTIImpl.h.

◆ isTypeLegal()

template<typename T >

bool llvm::BasicTTIImplBase< T >::isTypeLegal ( Type * Ty )

inline

Definition at line 386 of file BasicTTIImpl.h.

◆ preferPredicateOverEpilogue()

template<typename T >

bool llvm::BasicTTIImplBase< T >::preferPredicateOverEpilogue	(	Loop *	L,
		LoopInfo *	LI,
		ScalarEvolution &	SE,
		AssumptionCache &	AC,
		TargetLibraryInfo *	TLI,
		DominatorTree *	DT,
		LoopVectorizationLegality *	LVL,
		InterleavedAccessInfo *	IAI
	)

inline

Definition at line 605 of file BasicTTIImpl.h.

◆ rewriteIntrinsicWithAddressSpace()

template<typename T >

Value* llvm::BasicTTIImplBase< T >::rewriteIntrinsicWithAddressSpace	(	IntrinsicInst *	II,
		Value *	OldV,
		Value *	NewV
	)		const

inline

Definition at line 295 of file BasicTTIImpl.h.

◆ shouldBuildLookupTables()

template<typename T >

bool llvm::BasicTTIImplBase< T >::shouldBuildLookupTables ( )

inline

Definition at line 461 of file BasicTTIImpl.h.

◆ shouldBuildRelLookupTables()

template<typename T >

bool llvm::BasicTTIImplBase< T >::shouldBuildRelLookupTables ( ) const

inline

Relative lookup table entries consist of 32-bit offsets. Do not generate relative lookup tables for large code models in 64-bit achitectures where 32-bit offsets might not be enough.

Definition at line 467 of file BasicTTIImpl.h.

◆ shouldPrefetchAddressSpace()

template<typename T >

virtual bool llvm::BasicTTIImplBase< T >::shouldPrefetchAddressSpace ( unsigned AS ) const

inlinevirtual

Definition at line 682 of file BasicTTIImpl.h.

◆ simplifyDemandedUseBitsIntrinsic()

template<typename T >

Optional<Value *> llvm::BasicTTIImplBase< T >::simplifyDemandedUseBitsIntrinsic	(	InstCombiner &	IC,
		IntrinsicInst &	II,
		APInt	DemandedMask,
		KnownBits &	Known,
		bool &	KnownBitsComputed
	)

inline

Definition at line 622 of file BasicTTIImpl.h.

◆ simplifyDemandedVectorEltsIntrinsic()

template<typename T >

Optional<Value *> llvm::BasicTTIImplBase< T >::simplifyDemandedVectorEltsIntrinsic	(	InstCombiner &	IC,
		IntrinsicInst &	II,
		APInt	DemandedElts,
		APInt &	UndefElts,
		APInt &	UndefElts2,
		APInt &	UndefElts3,
		std::function< void(Instruction *, unsigned, APInt, APInt &)>	SimplifyAndSetOp
	)

inline

Definition at line 631 of file BasicTTIImpl.h.

◆ useAA()

template<typename T >

bool llvm::BasicTTIImplBase< T >::useAA ( ) const

inline

Definition at line 384 of file BasicTTIImpl.h.

◆ useGPUDivergenceAnalysis()

template<typename T >

bool llvm::BasicTTIImplBase< T >::useGPUDivergenceAnalysis ( )

inline

Definition at line 266 of file BasicTTIImpl.h.

Member Data Documentation

◆ DL

template<typename T >

const DataLayout& llvm::TargetTransformInfoImplBase::DL

protected

Definition at line 37 of file TargetTransformInfoImpl.h.

The documentation for this class was generated from the following file:

include/llvm/CodeGen/BasicTTIImpl.h

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

template<typename T> class llvm::BasicTTIImplBase< T >

Constructor & Destructor Documentation

◆ BasicTTIImplBase()

◆ ~BasicTTIImplBase()

Member Function Documentation

◆ adjustInliningThreshold()

◆ allowsMisalignedMemoryAccesses()

◆ collectFlatAddressOperands()

◆ emitGetActiveLaneMask()

◆ enableWritePrefetching()

◆ getAddressComputationCost()

◆ getArithmeticInstrCost()

◆ getArithmeticReductionCost()

◆ getAssumedAddrSpace()

◆ getCacheAssociativity()

◆ getCacheLineSize()

◆ getCacheSize()

◆ getCallInstrCost()

◆ getCastInstrCost()

◆ getCFInstrCost()

◆ getCmpSelInstrCost()

◆ getEstimatedNumberOfCaseClusters()

◆ getExtendedReductionCost()

◆ getExtractWithExtendCost()

◆ getFlatAddressSpace()

◆ getFPOpCost()

◆ getGatherScatterOpCost()

◆ getGEPCost()

◆ getInlinerVectorBonusPercent()

◆ getInliningThresholdMultiplier()

◆ getInterleavedMemoryOpCost()

◆ getIntrinsicInstrCost()

◆ getMaskedMemoryOpCost()

◆ getMaxInterleaveFactor()

◆ getMaxPrefetchIterationsAhead()

◆ getMaxVScale()

◆ getMemoryOpCost()

◆ getMinMaxReductionCost()

◆ getMinPrefetchStride()

◆ getMulAccReductionCost()

◆ getNumberOfParts()

◆ getOperandsScalarizationOverhead()

◆ getOrderedReductionCost()

◆ getPeelingPreferences()

◆ getPredicatedAddrSpace()

◆ getPrefetchDistance()

◆ getRegisterBitWidth()

◆ getRegUsageForType()

◆ getReplicationShuffleCost()

◆ getScalarizationOverhead() [1/3]

◆ getScalarizationOverhead() [2/3]

◆ getScalarizationOverhead() [3/3]

◆ getScalingFactorCost()

◆ getShuffleCost()

◆ getStoreMinimumVF()

◆ getTreeReductionCost()

◆ getTypeBasedIntrinsicInstrCost()

◆ getTypeLegalizationCost()

◆ getUnrollingPreferences()

◆ getVectorInstrCost() [1/2]

◆ getVectorInstrCost() [2/2]

◆ getVectorSplitCost()

◆ getVScaleForTuning()

◆ hasBranchDivergence()

◆ haveFastSqrt()

◆ improveShuffleKindFromMask()

◆ instCombineIntrinsic()

◆ isAlwaysUniform()

◆ isFCmpOrdCheaperThanFCmpZero()

◆ isHardwareLoopProfitable()

◆ isIndexedLoadLegal()

◆ isIndexedStoreLegal()

◆ isLegalAddImmediate()

◆ isLegalAddressingMode()

◆ isLegalICmpImmediate()

template<typename T>
class llvm::BasicTTIImplBase< T >