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//===-- X86TargetTransformInfo.h - X86 specific TTI -------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file a TargetTransformInfo::Concept conforming object specific to the
/// X86 target machine. It uses the target's detailed information to
/// provide more precise answers to certain TTI queries, while letting the
/// target independent and default TTI implementations handle the rest.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
#define LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
#include "X86.h"
#include "X86TargetMachine.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
#include "llvm/Target/TargetLowering.h"
namespace llvm {
class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
typedef BasicTTIImplBase<X86TTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const X86Subtarget *ST;
const X86TargetLowering *TLI;
int getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
const X86Subtarget *getST() const { return ST; }
const X86TargetLowering *getTLI() const { return TLI; }
public:
explicit X86TTIImpl(const X86TargetMachine *TM, const Function &F)
: BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
TLI(ST->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
X86TTIImpl(const X86TTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
X86TTIImpl(X86TTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
TLI(std::move(Arg.TLI)) {}
/// \name Scalar TTI Implementations
/// @{
TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
/// @}
/// \name Vector TTI Implementations
/// @{
unsigned getNumberOfRegisters(bool Vector);
unsigned getRegisterBitWidth(bool Vector);
unsigned getMaxInterleaveFactor(unsigned VF);
int getArithmeticInstrCost(
unsigned Opcode, Type *Ty,
TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src);
int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy);
int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
unsigned AddressSpace);
int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
unsigned AddressSpace);
int getGatherScatterOpCost(unsigned Opcode, Type *DataTy, Value *Ptr,
bool VariableMask, unsigned Alignment);
int getAddressComputationCost(Type *PtrTy, bool IsComplex);
int getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy,
ArrayRef<Type *> Tys, FastMathFlags FMF);
int getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy,
ArrayRef<Value *> Args, FastMathFlags FMF);
int getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm);
int getIntImmCost(int64_t);
int getIntImmCost(const APInt &Imm, Type *Ty);
int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
Type *Ty);
bool isLegalMaskedLoad(Type *DataType);
bool isLegalMaskedStore(Type *DataType);
bool isLegalMaskedGather(Type *DataType);
bool isLegalMaskedScatter(Type *DataType);
bool areInlineCompatible(const Function *Caller,
const Function *Callee) const;
private:
int getGSScalarCost(unsigned Opcode, Type *DataTy, bool VariableMask,
unsigned Alignment, unsigned AddressSpace);
int getGSVectorCost(unsigned Opcode, Type *DataTy, Value *Ptr,
unsigned Alignment, unsigned AddressSpace);
/// @}
};
} // end namespace llvm
#endif
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