1 //===-- SystemZTargetTransformInfo.h - SystemZ-specific TTI ---------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H 11 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H 12 13 #include "SystemZTargetMachine.h" 14 #include "llvm/Analysis/TargetTransformInfo.h" 15 #include "llvm/CodeGen/BasicTTIImpl.h" 16 17 namespace llvm { 18 19 class SystemZTTIImpl : public BasicTTIImplBase<SystemZTTIImpl> { 20 typedef BasicTTIImplBase<SystemZTTIImpl> BaseT; 21 typedef TargetTransformInfo TTI; 22 friend BaseT; 23 24 const SystemZSubtarget *ST; 25 const SystemZTargetLowering *TLI; 26 getST()27 const SystemZSubtarget *getST() const { return ST; } getTLI()28 const SystemZTargetLowering *getTLI() const { return TLI; } 29 30 unsigned const LIBCALL_COST = 30; 31 32 public: SystemZTTIImpl(const SystemZTargetMachine * TM,const Function & F)33 explicit SystemZTTIImpl(const SystemZTargetMachine *TM, const Function &F) 34 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 35 TLI(ST->getTargetLowering()) {} 36 37 /// \name Scalar TTI Implementations 38 /// @{ 39 getInliningThresholdMultiplier()40 unsigned getInliningThresholdMultiplier() { return 3; } 41 42 int getIntImmCost(const APInt &Imm, Type *Ty); 43 44 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty); 45 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, 46 Type *Ty); 47 48 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth); 49 50 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, 51 TTI::UnrollingPreferences &UP); 52 53 bool isLSRCostLess(TargetTransformInfo::LSRCost &C1, 54 TargetTransformInfo::LSRCost &C2); 55 /// @} 56 57 /// \name Vector TTI Implementations 58 /// @{ 59 60 unsigned getNumberOfRegisters(bool Vector); 61 unsigned getRegisterBitWidth(bool Vector) const; 62 getCacheLineSize()63 unsigned getCacheLineSize() { return 256; } getPrefetchDistance()64 unsigned getPrefetchDistance() { return 2000; } getMinPrefetchStride()65 unsigned getMinPrefetchStride() { return 2048; } 66 67 bool hasDivRemOp(Type *DataType, bool IsSigned); prefersVectorizedAddressing()68 bool prefersVectorizedAddressing() { return false; } LSRWithInstrQueries()69 bool LSRWithInstrQueries() { return true; } supportsEfficientVectorElementLoadStore()70 bool supportsEfficientVectorElementLoadStore() { return true; } enableInterleavedAccessVectorization()71 bool enableInterleavedAccessVectorization() { return true; } 72 73 int getArithmeticInstrCost( 74 unsigned Opcode, Type *Ty, 75 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 76 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 77 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 78 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, 79 ArrayRef<const Value *> Args = ArrayRef<const Value *>()); 80 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp); 81 unsigned getVectorTruncCost(Type *SrcTy, Type *DstTy); 82 unsigned getVectorBitmaskConversionCost(Type *SrcTy, Type *DstTy); 83 unsigned getBoolVecToIntConversionCost(unsigned Opcode, Type *Dst, 84 const Instruction *I); 85 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, 86 const Instruction *I = nullptr); 87 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, 88 const Instruction *I = nullptr); 89 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); 90 bool isFoldableLoad(const LoadInst *Ld, const Instruction *&FoldedValue); 91 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, 92 unsigned AddressSpace, const Instruction *I = nullptr); 93 94 int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, 95 unsigned Factor, 96 ArrayRef<unsigned> Indices, 97 unsigned Alignment, 98 unsigned AddressSpace, 99 bool UseMaskForCond = false, 100 bool UseMaskForGaps = false); 101 102 int getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy, 103 ArrayRef<Value *> Args, FastMathFlags FMF, 104 unsigned VF = 1); 105 int getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy, 106 ArrayRef<Type *> Tys, FastMathFlags FMF, 107 unsigned ScalarizationCostPassed = UINT_MAX); 108 /// @} 109 }; 110 111 } // end namespace llvm 112 113 #endif 114