//===-------------------- 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