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146 lines
6.0 KiB
C++
146 lines
6.0 KiB
C++
//===-- X86TargetTransformInfo.h - X86 specific TTI -------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// This file a TargetTransformInfo::Concept conforming object specific to the
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/// X86 target machine. It uses the target's detailed information to
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/// provide more precise answers to certain TTI queries, while letting the
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/// target independent and default TTI implementations handle the rest.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
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#define LLVM_LIB_TARGET_X86_X86TARGETTRANSFORMINFO_H
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#include "X86.h"
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#include "X86TargetMachine.h"
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#include "llvm/Analysis/TargetTransformInfo.h"
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#include "llvm/CodeGen/BasicTTIImpl.h"
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#include "llvm/CodeGen/TargetLowering.h"
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namespace llvm {
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class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
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typedef BasicTTIImplBase<X86TTIImpl> BaseT;
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typedef TargetTransformInfo TTI;
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friend BaseT;
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const X86Subtarget *ST;
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const X86TargetLowering *TLI;
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const X86Subtarget *getST() const { return ST; }
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const X86TargetLowering *getTLI() const { return TLI; }
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public:
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explicit X86TTIImpl(const X86TargetMachine *TM, const Function &F)
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: BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
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TLI(ST->getTargetLowering()) {}
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/// \name Scalar TTI Implementations
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/// @{
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TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
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/// @}
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/// \name Cache TTI Implementation
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/// @{
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llvm::Optional<unsigned> getCacheSize(
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TargetTransformInfo::CacheLevel Level) const;
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llvm::Optional<unsigned> getCacheAssociativity(
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TargetTransformInfo::CacheLevel Level) const;
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/// @}
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/// \name Vector TTI Implementations
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/// @{
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unsigned getNumberOfRegisters(bool Vector);
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unsigned getRegisterBitWidth(bool Vector) const;
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unsigned getLoadStoreVecRegBitWidth(unsigned AS) const;
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unsigned getMaxInterleaveFactor(unsigned VF);
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int getArithmeticInstrCost(
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unsigned Opcode, Type *Ty,
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TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
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TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
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TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
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TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None,
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ArrayRef<const Value *> Args = ArrayRef<const Value *>());
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int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
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int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src,
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const Instruction *I = nullptr);
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int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy,
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const Instruction *I = nullptr);
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int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
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int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
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unsigned AddressSpace, const Instruction *I = nullptr);
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int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
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unsigned AddressSpace);
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int getGatherScatterOpCost(unsigned Opcode, Type *DataTy, Value *Ptr,
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bool VariableMask, unsigned Alignment);
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int getAddressComputationCost(Type *PtrTy, ScalarEvolution *SE,
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const SCEV *Ptr);
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unsigned getAtomicMemIntrinsicMaxElementSize() const;
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int getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy,
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ArrayRef<Type *> Tys, FastMathFlags FMF,
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unsigned ScalarizationCostPassed = UINT_MAX);
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int getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy,
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ArrayRef<Value *> Args, FastMathFlags FMF,
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unsigned VF = 1);
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int getArithmeticReductionCost(unsigned Opcode, Type *Ty,
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bool IsPairwiseForm);
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int getMinMaxReductionCost(Type *Ty, Type *CondTy, bool IsPairwiseForm,
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bool IsUnsigned);
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int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
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unsigned Factor, ArrayRef<unsigned> Indices,
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unsigned Alignment, unsigned AddressSpace);
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int getInterleavedMemoryOpCostAVX512(unsigned Opcode, Type *VecTy,
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unsigned Factor, ArrayRef<unsigned> Indices,
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unsigned Alignment, unsigned AddressSpace);
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int getInterleavedMemoryOpCostAVX2(unsigned Opcode, Type *VecTy,
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unsigned Factor, ArrayRef<unsigned> Indices,
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unsigned Alignment, unsigned AddressSpace);
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int getIntImmCost(int64_t);
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int getIntImmCost(const APInt &Imm, Type *Ty);
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unsigned getUserCost(const User *U, ArrayRef<const Value *> Operands);
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int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
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int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
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Type *Ty);
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bool isLSRCostLess(TargetTransformInfo::LSRCost &C1,
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TargetTransformInfo::LSRCost &C2);
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bool isLegalMaskedLoad(Type *DataType);
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bool isLegalMaskedStore(Type *DataType);
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bool isLegalMaskedGather(Type *DataType);
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bool isLegalMaskedScatter(Type *DataType);
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bool hasDivRemOp(Type *DataType, bool IsSigned);
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bool isFCmpOrdCheaperThanFCmpZero(Type *Ty);
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bool areInlineCompatible(const Function *Caller,
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const Function *Callee) const;
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const TTI::MemCmpExpansionOptions *enableMemCmpExpansion(
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bool IsZeroCmp) const;
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bool enableInterleavedAccessVectorization();
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private:
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int getGSScalarCost(unsigned Opcode, Type *DataTy, bool VariableMask,
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unsigned Alignment, unsigned AddressSpace);
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int getGSVectorCost(unsigned Opcode, Type *DataTy, Value *Ptr,
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unsigned Alignment, unsigned AddressSpace);
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/// @}
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};
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} // end namespace llvm
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#endif
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