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1 //===-- X86TargetTransformInfo.h - X86 specific TTI -------------*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 /// \file
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10 /// This file a TargetTransformInfo::Concept conforming object specific to the
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11 /// X86 target machine. It uses the target's detailed information to
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12 /// provide more precise answers to certain TTI queries, while letting the
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13 /// target independent and default TTI implementations handle the rest.
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14 ///
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15 //===----------------------------------------------------------------------===//
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16
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17 #ifndef LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
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18 #define LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
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19
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20 #include "X86.h"
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21 #include "X86TargetMachine.h"
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22 #include "llvm/Analysis/TargetTransformInfo.h"
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23 #include "llvm/CodeGen/BasicTTIImpl.h"
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24 #include "llvm/Target/TargetLowering.h"
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25
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26 namespace llvm {
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27
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28 class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
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29 typedef BasicTTIImplBase<X86TTIImpl> BaseT;
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30 typedef TargetTransformInfo TTI;
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31 friend BaseT;
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32
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33 const X86Subtarget *ST;
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34 const X86TargetLowering *TLI;
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35
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95
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36 int getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
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83
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37
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38 const X86Subtarget *getST() const { return ST; }
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39 const X86TargetLowering *getTLI() const { return TLI; }
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40
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41 public:
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95
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42 explicit X86TTIImpl(const X86TargetMachine *TM, const Function &F)
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43 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
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44 TLI(ST->getTargetLowering()) {}
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45
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46 // Provide value semantics. MSVC requires that we spell all of these out.
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47 X86TTIImpl(const X86TTIImpl &Arg)
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48 : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
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49 X86TTIImpl(X86TTIImpl &&Arg)
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50 : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
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51 TLI(std::move(Arg.TLI)) {}
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52
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53 /// \name Scalar TTI Implementations
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54 /// @{
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55 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
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56
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57 /// @}
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58
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59 /// \name Vector TTI Implementations
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60 /// @{
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61
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62 unsigned getNumberOfRegisters(bool Vector);
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63 unsigned getRegisterBitWidth(bool Vector);
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64 unsigned getMaxInterleaveFactor(unsigned VF);
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65 int getArithmeticInstrCost(
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66 unsigned Opcode, Type *Ty,
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67 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
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68 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
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69 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
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70 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
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95
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71 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
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72 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src);
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73 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy);
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74 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
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75 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
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76 unsigned AddressSpace);
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77 int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
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78 unsigned AddressSpace);
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100
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79 int getGatherScatterOpCost(unsigned Opcode, Type *DataTy, Value *Ptr,
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80 bool VariableMask, unsigned Alignment);
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95
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81 int getAddressComputationCost(Type *PtrTy, bool IsComplex);
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83
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82
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95
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83 int getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm);
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83
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84
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95
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85 int getIntImmCost(int64_t);
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83
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86
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95
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87 int getIntImmCost(const APInt &Imm, Type *Ty);
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83
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88
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95
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89 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
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90 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
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91 Type *Ty);
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100
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92 bool isLegalMaskedLoad(Type *DataType);
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93 bool isLegalMaskedStore(Type *DataType);
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94 bool isLegalMaskedGather(Type *DataType);
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95 bool isLegalMaskedScatter(Type *DataType);
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95
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96 bool areInlineCompatible(const Function *Caller,
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97 const Function *Callee) const;
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100
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98 private:
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99 int getGSScalarCost(unsigned Opcode, Type *DataTy, bool VariableMask,
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100 unsigned Alignment, unsigned AddressSpace);
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101 int getGSVectorCost(unsigned Opcode, Type *DataTy, Value *Ptr,
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102 unsigned Alignment, unsigned AddressSpace);
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83
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103
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104 /// @}
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105 };
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106
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107 } // end namespace llvm
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108
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109 #endif
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