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//=- llvm/Target/TargetTransformImpl.h - Target Loop Trans Info----*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the target-specific implementations of the
// TargetTransform interfaces.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_TARGET_TRANSFORMATION_IMPL_H
#define LLVM_TARGET_TARGET_TRANSFORMATION_IMPL_H
#include "llvm/TargetTransformInfo.h"
#include "llvm/CodeGen/ValueTypes.h"
namespace llvm {
class TargetLowering;
/// ScalarTargetTransformInfo - This is a default implementation for the
/// ScalarTargetTransformInfo interface. Different targets can implement
/// this interface differently.
class ScalarTargetTransformImpl : public ScalarTargetTransformInfo {
protected:
const TargetLowering *TLI;
public:
/// Ctor
explicit ScalarTargetTransformImpl(const TargetLowering *TL) : TLI(TL) {}
virtual bool isLegalAddImmediate(int64_t imm) const;
virtual bool isLegalICmpImmediate(int64_t imm) const;
virtual bool isLegalAddressingMode(const AddrMode &AM, Type *Ty) const;
virtual bool isTruncateFree(Type *Ty1, Type *Ty2) const;
virtual bool isTypeLegal(Type *Ty) const;
virtual unsigned getJumpBufAlignment() const;
virtual unsigned getJumpBufSize() const;
virtual bool shouldBuildLookupTables() const;
};
class VectorTargetTransformImpl : public VectorTargetTransformInfo {
protected:
const TargetLowering *TLI;
/// Estimate the cost of type-legalization and the legalized type.
std::pair<unsigned, MVT> getTypeLegalizationCost(Type *Ty) const;
/// Estimate the overhead of scalarizing an instruction. Insert and Extract
/// are set if the result needs to be inserted and/or extracted from vectors.
unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract) const;
// Get the ISD node that corresponds to the Instruction class opcode.
int InstructionOpcodeToISD(unsigned Opcode) const;
public:
explicit VectorTargetTransformImpl(const TargetLowering *TL) : TLI(TL) {}
virtual ~VectorTargetTransformImpl() {}
virtual unsigned getInstrCost(unsigned Opcode, Type *Ty1, Type *Ty2) const;
virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const;
virtual unsigned getBroadcastCost(Type *Tp) const;
virtual unsigned getCastInstrCost(unsigned Opcode, Type *Dst,
Type *Src) const;
virtual unsigned getCFInstrCost(unsigned Opcode) const;
virtual unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
Type *CondTy) const;
virtual unsigned getVectorInstrCost(unsigned Opcode, Type *Val,
unsigned Index) const;
virtual unsigned getMemoryOpCost(unsigned Opcode, Type *Src,
unsigned Alignment,
unsigned AddressSpace) const;
virtual unsigned getNumberOfParts(Type *Tp) const;
};
} // end llvm namespace
#endif
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