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1//===-- SystemZTargetTransformInfo.h - SystemZ-specific TTI ---------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H10#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H11 12#include "SystemZTargetMachine.h"13#include "llvm/Analysis/TargetTransformInfo.h"14#include "llvm/CodeGen/BasicTTIImpl.h"15 16namespace llvm {17 18class SystemZTTIImpl final : public BasicTTIImplBase<SystemZTTIImpl> {19 typedef BasicTTIImplBase<SystemZTTIImpl> BaseT;20 typedef TargetTransformInfo TTI;21 friend BaseT;22 23 const SystemZSubtarget *ST;24 const SystemZTargetLowering *TLI;25 26 const SystemZSubtarget *getST() const { return ST; }27 const SystemZTargetLowering *getTLI() const { return TLI; }28 29 unsigned const LIBCALL_COST = 30;30 31 bool isInt128InVR(Type *Ty) const {32 return Ty->isIntegerTy(128) && ST->hasVector();33 }34 35public:36 explicit SystemZTTIImpl(const SystemZTargetMachine *TM, const Function &F)37 : BaseT(TM, F.getDataLayout()), ST(TM->getSubtargetImpl(F)),38 TLI(ST->getTargetLowering()) {}39 40 /// \name Scalar TTI Implementations41 /// @{42 43 unsigned adjustInliningThreshold(const CallBase *CB) const override;44 45 InstructionCost getIntImmCost(const APInt &Imm, Type *Ty,46 TTI::TargetCostKind CostKind) const override;47 48 InstructionCost getIntImmCostInst(unsigned Opcode, unsigned Idx,49 const APInt &Imm, Type *Ty,50 TTI::TargetCostKind CostKind,51 Instruction *Inst = nullptr) const override;52 InstructionCost53 getIntImmCostIntrin(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,54 Type *Ty, TTI::TargetCostKind CostKind) const override;55 56 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) const override;57 58 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE,59 TTI::UnrollingPreferences &UP,60 OptimizationRemarkEmitter *ORE) const override;61 62 void getPeelingPreferences(Loop *L, ScalarEvolution &SE,63 TTI::PeelingPreferences &PP) const override;64 65 bool isLSRCostLess(const TargetTransformInfo::LSRCost &C1,66 const TargetTransformInfo::LSRCost &C2) const override;67 68 /// @}69 70 /// \name Vector TTI Implementations71 /// @{72 73 unsigned getNumberOfRegisters(unsigned ClassID) const override;74 TypeSize75 getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const override;76 77 unsigned getCacheLineSize() const override { return 256; }78 unsigned getPrefetchDistance() const override { return 4500; }79 unsigned getMinPrefetchStride(unsigned NumMemAccesses,80 unsigned NumStridedMemAccesses,81 unsigned NumPrefetches,82 bool HasCall) const override;83 bool enableWritePrefetching() const override { return true; }84 85 bool hasDivRemOp(Type *DataType, bool IsSigned) const override;86 bool prefersVectorizedAddressing() const override { return false; }87 bool LSRWithInstrQueries() const override { return true; }88 InstructionCost getScalarizationOverhead(89 VectorType *Ty, const APInt &DemandedElts, bool Insert, bool Extract,90 TTI::TargetCostKind CostKind, bool ForPoisonSrc = true,91 ArrayRef<Value *> VL = {}) const override;92 bool supportsEfficientVectorElementLoadStore() const override { return true; }93 bool enableInterleavedAccessVectorization() const override { return true; }94 95 InstructionCost getArithmeticInstrCost(96 unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind,97 TTI::OperandValueInfo Op1Info = {TTI::OK_AnyValue, TTI::OP_None},98 TTI::OperandValueInfo Op2Info = {TTI::OK_AnyValue, TTI::OP_None},99 ArrayRef<const Value *> Args = {},100 const Instruction *CxtI = nullptr) const override;101 InstructionCost102 getShuffleCost(TTI::ShuffleKind Kind, VectorType *DstTy, VectorType *SrcTy,103 ArrayRef<int> Mask, TTI::TargetCostKind CostKind, int Index,104 VectorType *SubTp, ArrayRef<const Value *> Args = {},105 const Instruction *CxtI = nullptr) const override;106 unsigned getVectorTruncCost(Type *SrcTy, Type *DstTy) const;107 unsigned getVectorBitmaskConversionCost(Type *SrcTy, Type *DstTy) const;108 unsigned getBoolVecToIntConversionCost(unsigned Opcode, Type *Dst,109 const Instruction *I) const;110 InstructionCost111 getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src,112 TTI::CastContextHint CCH, TTI::TargetCostKind CostKind,113 const Instruction *I = nullptr) const override;114 InstructionCost getCmpSelInstrCost(115 unsigned Opcode, Type *ValTy, Type *CondTy, CmpInst::Predicate VecPred,116 TTI::TargetCostKind CostKind,117 TTI::OperandValueInfo Op1Info = {TTI::OK_AnyValue, TTI::OP_None},118 TTI::OperandValueInfo Op2Info = {TTI::OK_AnyValue, TTI::OP_None},119 const Instruction *I = nullptr) const override;120 using BaseT::getVectorInstrCost;121 InstructionCost getVectorInstrCost(unsigned Opcode, Type *Val,122 TTI::TargetCostKind CostKind,123 unsigned Index, const Value *Op0,124 const Value *Op1) const override;125 bool isFoldableLoad(const LoadInst *Ld,126 const Instruction *&FoldedValue) const;127 InstructionCost getMemoryOpCost(128 unsigned Opcode, Type *Src, Align Alignment, unsigned AddressSpace,129 TTI::TargetCostKind CostKind,130 TTI::OperandValueInfo OpInfo = {TTI::OK_AnyValue, TTI::OP_None},131 const Instruction *I = nullptr) const override;132 133 InstructionCost getInterleavedMemoryOpCost(134 unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef<unsigned> Indices,135 Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind,136 bool UseMaskForCond = false, bool UseMaskForGaps = false) const override;137 138 InstructionCost139 getArithmeticReductionCost(unsigned Opcode, VectorType *Ty,140 std::optional<FastMathFlags> FMF,141 TTI::TargetCostKind CostKind) const override;142 InstructionCost143 getMinMaxReductionCost(Intrinsic::ID IID, VectorType *Ty, FastMathFlags FMF,144 TTI::TargetCostKind CostKind) const override;145 146 InstructionCost147 getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,148 TTI::TargetCostKind CostKind) const override;149 150 bool shouldExpandReduction(const IntrinsicInst *II) const override;151 /// @}152};153 154} // end namespace llvm155 156#endif157