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//===- R600TargetTransformInfo.h - R600 specific TTI --------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
/// \file
/// This file a TargetTransformInfoImplBase conforming object specific to the
/// R600 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_AMDGPU_R600TARGETTRANSFORMINFO_H
#define LLVM_LIB_TARGET_AMDGPU_R600TARGETTRANSFORMINFO_H
#include "AMDGPUTargetTransformInfo.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
namespace llvm {
class R600Subtarget;
class AMDGPUTargetLowering;
class R600TTIImpl final : public BasicTTIImplBase<R600TTIImpl> {
using BaseT = BasicTTIImplBase<R600TTIImpl>;
using TTI = TargetTransformInfo;
friend BaseT;
const R600Subtarget *ST;
const AMDGPUTargetLowering *TLI;
AMDGPUTTIImpl CommonTTI;
public:
explicit R600TTIImpl(const AMDGPUTargetMachine *TM, const Function &F);
const R600Subtarget *getST() const { return ST; }
const AMDGPUTargetLowering *getTLI() const { return TLI; }
void getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
TTI::UnrollingPreferences &UP,
OptimizationRemarkEmitter *ORE) const override;
void getPeelingPreferences(Loop *L, ScalarEvolution &SE,
TTI::PeelingPreferences &PP) const override;
unsigned getHardwareNumberOfRegisters(bool Vec) const;
unsigned getNumberOfRegisters(unsigned ClassID) const override;
TypeSize
getRegisterBitWidth(TargetTransformInfo::RegisterKind Vector) const override;
unsigned getMinVectorRegisterBitWidth() const override;
unsigned getLoadStoreVecRegBitWidth(unsigned AddrSpace) const override;
bool isLegalToVectorizeMemChain(unsigned ChainSizeInBytes, Align Alignment,
unsigned AddrSpace) const;
bool isLegalToVectorizeLoadChain(unsigned ChainSizeInBytes, Align Alignment,
unsigned AddrSpace) const override;
bool isLegalToVectorizeStoreChain(unsigned ChainSizeInBytes, Align Alignment,
unsigned AddrSpace) const override;
unsigned getMaxInterleaveFactor(ElementCount VF) const override;
InstructionCost getCFInstrCost(unsigned Opcode, TTI::TargetCostKind CostKind,
const Instruction *I = nullptr) const override;
using BaseT::getVectorInstrCost;
InstructionCost getVectorInstrCost(unsigned Opcode, Type *ValTy,
TTI::TargetCostKind CostKind,
unsigned Index, const Value *Op0,
const Value *Op1) const override;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_AMDGPU_R600TARGETTRANSFORMINFO_H
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