76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===-------------------- RISCVCustomBehaviour.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 RISCVCustomBehaviour class which inherits from
|
|
/// CustomBehaviour. This class is used by the tool llvm-mca to enforce
|
|
/// target specific behaviour that is not expressed well enough in the
|
|
/// scheduling model for mca to enforce it automatically.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_RISCV_MCA_RISCVCUSTOMBEHAVIOUR_H
|
|
#define LLVM_LIB_TARGET_RISCV_MCA_RISCVCUSTOMBEHAVIOUR_H
|
|
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/MC/MCInstrDesc.h"
|
|
#include "llvm/MC/MCInstrInfo.h"
|
|
#include "llvm/MCA/CustomBehaviour.h"
|
|
|
|
namespace llvm {
|
|
namespace mca {
|
|
|
|
class RISCVLMULInstrument : public Instrument {
|
|
public:
|
|
static const StringRef DESC_NAME;
|
|
static bool isDataValid(StringRef Data);
|
|
|
|
explicit RISCVLMULInstrument(StringRef Data) : Instrument(DESC_NAME, Data) {}
|
|
|
|
~RISCVLMULInstrument() = default;
|
|
|
|
uint8_t getLMUL() const;
|
|
};
|
|
|
|
class RISCVSEWInstrument : public Instrument {
|
|
public:
|
|
static const StringRef DESC_NAME;
|
|
static bool isDataValid(StringRef Data);
|
|
|
|
explicit RISCVSEWInstrument(StringRef Data) : Instrument(DESC_NAME, Data) {}
|
|
|
|
~RISCVSEWInstrument() = default;
|
|
|
|
uint8_t getSEW() const;
|
|
};
|
|
|
|
class RISCVInstrumentManager : public InstrumentManager {
|
|
public:
|
|
RISCVInstrumentManager(const MCSubtargetInfo &STI, const MCInstrInfo &MCII)
|
|
: InstrumentManager(STI, MCII) {}
|
|
|
|
bool shouldIgnoreInstruments() const override { return false; }
|
|
bool supportsInstrumentType(StringRef Type) const override;
|
|
|
|
/// Create a Instrument for RISC-V target
|
|
UniqueInstrument createInstrument(StringRef Desc, StringRef Data) override;
|
|
|
|
SmallVector<UniqueInstrument> createInstruments(const MCInst &Inst) override;
|
|
|
|
/// Using the Instrument, returns a SchedClassID to use instead of
|
|
/// the SchedClassID that belongs to the MCI or the original SchedClassID.
|
|
unsigned
|
|
getSchedClassID(const MCInstrInfo &MCII, const MCInst &MCI,
|
|
const SmallVector<Instrument *> &IVec) const override;
|
|
};
|
|
|
|
} // namespace mca
|
|
} // namespace llvm
|
|
|
|
#endif
|