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//===------------------- AMDGPUCustomBehaviour.h ----------------*-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 defines the AMDGPUCustomBehaviour class which inherits from
/// CustomBehaviour.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVM_MCA_LIB_AMDGPU_AMDGPUCUSTOMBEHAVIOUR_H
#define LLVM_TOOLS_LLVM_MCA_LIB_AMDGPU_AMDGPUCUSTOMBEHAVIOUR_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/MCA/CustomBehaviour.h"
#include "llvm/Support/TargetParser.h"
namespace llvm {
namespace mca {
class AMDGPUInstrPostProcess : public InstrPostProcess {
public:
AMDGPUInstrPostProcess(const MCSubtargetInfo &STI, const MCInstrInfo &MCII)
: InstrPostProcess(STI, MCII) {}
~AMDGPUInstrPostProcess() {}
void postProcessInstruction(std::unique_ptr<Instruction> &Inst,
const MCInst &MCI) override {}
};
class AMDGPUCustomBehaviour : public CustomBehaviour {
public:
AMDGPUCustomBehaviour(const MCSubtargetInfo &STI, const SourceMgr &SrcMgr,
const MCInstrInfo &MCII);
~AMDGPUCustomBehaviour() {}
/// This method is used to determine if an instruction
/// should be allowed to be dispatched. The return value is
/// how many cycles until the instruction can be dispatched.
/// This method is called after MCA has already checked for
/// register and hardware dependencies so this method should only
/// implement custom behaviour and dependencies that are not picked up
/// by MCA naturally.
unsigned checkCustomHazard(ArrayRef<InstRef> IssuedInst,
const InstRef &IR) override;
};
} // namespace mca
} // namespace llvm
#endif /* LLVM_TOOLS_LLVM_MCA_LIB_AMDGPU_AMDGPUCUSTOMBEHAVIOUR_H */
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