1 //===-- X86TargetTransformInfo.h - X86 specific TTI -------------*- C++ -*-===// 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 /// \file 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. 14 /// 15 //===----------------------------------------------------------------------===// 16 17 #ifndef LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H 18 #define LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H 19 20 #include "X86.h" 21 #include "X86TargetMachine.h" 22 #include "llvm/Analysis/TargetTransformInfo.h" 23 #include "llvm/CodeGen/BasicTTIImpl.h" 24 #include "llvm/Target/TargetLowering.h" 25 26 namespace llvm { 27 28 class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> { 29 typedef BasicTTIImplBase<X86TTIImpl> BaseT; 30 typedef TargetTransformInfo TTI; 31 friend BaseT; 32 33 const X86Subtarget *ST; 34 const X86TargetLowering *TLI; 35 36 int getScalarizationOverhead(Type *Ty, bool Insert, bool Extract); 37 38 const X86Subtarget *getST() const { return ST; } 39 const X86TargetLowering *getTLI() const { return TLI; } 40 41 public: 42 explicit X86TTIImpl(const X86TargetMachine *TM, const Function &F) 43 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 44 TLI(ST->getTargetLowering()) {} 45 46 // Provide value semantics. MSVC requires that we spell all of these out. 47 X86TTIImpl(const X86TTIImpl &Arg) 48 : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {} 49 X86TTIImpl(X86TTIImpl &&Arg) 50 : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)), 51 TLI(std::move(Arg.TLI)) {} 52 53 /// \name Scalar TTI Implementations 54 /// @{ 55 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth); 56 57 /// @} 58 59 /// \name Vector TTI Implementations 60 /// @{ 61 62 unsigned getNumberOfRegisters(bool Vector); 63 unsigned getRegisterBitWidth(bool Vector); 64 unsigned getMaxInterleaveFactor(unsigned VF); 65 int getArithmeticInstrCost( 66 unsigned Opcode, Type *Ty, 67 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 68 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 69 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 70 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None); 71 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp); 72 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src); 73 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy); 74 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); 75 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, 76 unsigned AddressSpace); 77 int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, 78 unsigned AddressSpace); 79 80 int getAddressComputationCost(Type *PtrTy, bool IsComplex); 81 82 int getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm); 83 84 int getIntImmCost(int64_t); 85 86 int getIntImmCost(const APInt &Imm, Type *Ty); 87 88 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty); 89 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, 90 Type *Ty); 91 bool isLegalMaskedLoad(Type *DataType); 92 bool isLegalMaskedStore(Type *DataType); 93 bool isLegalMaskedGather(Type *DataType); 94 bool isLegalMaskedScatter(Type *DataType); 95 bool areInlineCompatible(const Function *Caller, 96 const Function *Callee) const; 97 98 /// @} 99 }; 100 101 } // end namespace llvm 102 103 #endif 104
