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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H 10 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H 11 12 #include "SystemZTargetMachine.h" 13 #include "llvm/Analysis/TargetTransformInfo.h" 14 #include "llvm/CodeGen/BasicTTIImpl.h" 15 16 namespace llvm { 17 18 class SystemZTTIImpl : 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 public: 32 explicit SystemZTTIImpl(const SystemZTargetMachine *TM, const Function &F) 33 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 34 TLI(ST->getTargetLowering()) {} 35 36 /// \name Scalar TTI Implementations 37 /// @{ 38 39 unsigned getInliningThresholdMultiplier() { return 3; } 40 unsigned adjustInliningThreshold(const CallBase *CB) const; 41 42 InstructionCost getIntImmCost(const APInt &Imm, Type *Ty, 43 TTI::TargetCostKind CostKind); 44 45 InstructionCost getIntImmCostInst(unsigned Opcode, unsigned Idx, 46 const APInt &Imm, Type *Ty, 47 TTI::TargetCostKind CostKind, 48 Instruction *Inst = nullptr); 49 InstructionCost getIntImmCostIntrin(Intrinsic::ID IID, unsigned Idx, 50 const APInt &Imm, Type *Ty, 51 TTI::TargetCostKind CostKind); 52 53 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth); 54 55 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, 56 TTI::UnrollingPreferences &UP, 57 OptimizationRemarkEmitter *ORE); 58 59 void getPeelingPreferences(Loop *L, ScalarEvolution &SE, 60 TTI::PeelingPreferences &PP); 61 62 bool isLSRCostLess(const TargetTransformInfo::LSRCost &C1, 63 const TargetTransformInfo::LSRCost &C2); 64 /// @} 65 66 /// \name Vector TTI Implementations 67 /// @{ 68 69 unsigned getNumberOfRegisters(unsigned ClassID) const; 70 TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const; 71 72 unsigned getCacheLineSize() const override { return 256; } 73 unsigned getPrefetchDistance() const override { return 4500; } 74 unsigned getMinPrefetchStride(unsigned NumMemAccesses, 75 unsigned NumStridedMemAccesses, 76 unsigned NumPrefetches, 77 bool HasCall) const override; 78 bool enableWritePrefetching() const override { return true; } 79 80 bool hasDivRemOp(Type *DataType, bool IsSigned); 81 bool prefersVectorizedAddressing() { return false; } 82 bool LSRWithInstrQueries() { return true; } 83 bool supportsEfficientVectorElementLoadStore() { return true; } 84 bool enableInterleavedAccessVectorization() { return true; } 85 86 InstructionCost getArithmeticInstrCost( 87 unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind, 88 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 89 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 90 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 91 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, 92 ArrayRef<const Value *> Args = ArrayRef<const Value *>(), 93 const Instruction *CxtI = nullptr); 94 InstructionCost getShuffleCost(TTI::ShuffleKind Kind, VectorType *Tp, 95 ArrayRef<int> Mask, int Index, 96 VectorType *SubTp, 97 ArrayRef<const Value *> Args = None); 98 unsigned getVectorTruncCost(Type *SrcTy, Type *DstTy); 99 unsigned getVectorBitmaskConversionCost(Type *SrcTy, Type *DstTy); 100 unsigned getBoolVecToIntConversionCost(unsigned Opcode, Type *Dst, 101 const Instruction *I); 102 InstructionCost getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, 103 TTI::CastContextHint CCH, 104 TTI::TargetCostKind CostKind, 105 const Instruction *I = nullptr); 106 InstructionCost getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, 107 CmpInst::Predicate VecPred, 108 TTI::TargetCostKind CostKind, 109 const Instruction *I = nullptr); 110 InstructionCost getVectorInstrCost(unsigned Opcode, Type *Val, 111 unsigned Index); 112 bool isFoldableLoad(const LoadInst *Ld, const Instruction *&FoldedValue); 113 InstructionCost getMemoryOpCost(unsigned Opcode, Type *Src, 114 MaybeAlign Alignment, unsigned AddressSpace, 115 TTI::TargetCostKind CostKind, 116 const Instruction *I = nullptr); 117 118 InstructionCost getInterleavedMemoryOpCost( 119 unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef<unsigned> Indices, 120 Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, 121 bool UseMaskForCond = false, bool UseMaskForGaps = false); 122 123 InstructionCost getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA, 124 TTI::TargetCostKind CostKind); 125 /// @} 126 }; 127 128 } // end namespace llvm 129 130 #endif 131