1 //===-- X86TargetTransformInfo.h - X86 specific TTI -------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 /// This file a TargetTransformInfo::Concept conforming object specific to the
11 /// X86 target machine. It uses the target's detailed information to
12 /// provide more precise answers to certain TTI queries, while letting the
13 /// target independent and default TTI implementations handle the rest.
15 //===----------------------------------------------------------------------===//
17 #ifndef LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
18 #define LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
21 #include "X86TargetMachine.h"
22 #include "llvm/Analysis/TargetTransformInfo.h"
23 #include "llvm/CodeGen/BasicTTIImpl.h"
24 #include "llvm/Target/TargetLowering.h"
28 class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
29 typedef BasicTTIImplBase<X86TTIImpl> BaseT;
30 typedef TargetTransformInfo TTI;
33 const X86Subtarget *ST;
34 const X86TargetLowering *TLI;
36 unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
38 const X86Subtarget *getST() const { return ST; }
39 const X86TargetLowering *getTLI() const { return TLI; }
42 explicit X86TTIImpl(const X86TargetMachine *TM, Function &F)
43 : BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
45 // Provide value semantics. MSVC requires that we spell all of these out.
46 X86TTIImpl(const X86TTIImpl &Arg)
47 : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
48 X86TTIImpl(X86TTIImpl &&Arg)
49 : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
50 TLI(std::move(Arg.TLI)) {}
51 X86TTIImpl &operator=(const X86TTIImpl &RHS) {
52 BaseT::operator=(static_cast<const BaseT &>(RHS));
57 X86TTIImpl &operator=(X86TTIImpl &&RHS) {
58 BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
59 ST = std::move(RHS.ST);
60 TLI = std::move(RHS.TLI);
64 /// \name Scalar TTI Implementations
66 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
70 /// \name Vector TTI Implementations
73 unsigned getNumberOfRegisters(bool Vector);
74 unsigned getRegisterBitWidth(bool Vector);
75 unsigned getMaxInterleaveFactor();
76 unsigned getArithmeticInstrCost(
77 unsigned Opcode, Type *Ty,
78 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
79 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
80 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
81 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
82 unsigned getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index,
84 unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src);
85 unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy);
86 unsigned getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
87 unsigned getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
88 unsigned AddressSpace);
89 unsigned getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
90 unsigned AddressSpace);
92 unsigned getAddressComputationCost(Type *PtrTy, bool IsComplex);
94 unsigned getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm);
96 unsigned getIntImmCost(int64_t);
98 unsigned getIntImmCost(const APInt &Imm, Type *Ty);
100 unsigned getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm,
102 unsigned getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
104 bool isLegalMaskedLoad(Type *DataType, int Consecutive);
105 bool isLegalMaskedStore(Type *DataType, int Consecutive);
110 } // end namespace llvm