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- #pragma once
- #ifdef __GNUC__
- #pragma GCC diagnostic push
- #pragma GCC diagnostic ignored "-Wunused-parameter"
- #endif
- //===- llvm/MC/MCCodeEmitter.h - Instruction Encoding -----------*- 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
- //
- //===----------------------------------------------------------------------===//
- #ifndef LLVM_MC_MCCODEEMITTER_H
- #define LLVM_MC_MCCODEEMITTER_H
- namespace llvm {
- class MCFixup;
- class MCInst;
- class MCSubtargetInfo;
- class raw_ostream;
- template<typename T> class SmallVectorImpl;
- /// MCCodeEmitter - Generic instruction encoding interface.
- class MCCodeEmitter {
- protected: // Can only create subclasses.
- MCCodeEmitter();
- public:
- MCCodeEmitter(const MCCodeEmitter &) = delete;
- MCCodeEmitter &operator=(const MCCodeEmitter &) = delete;
- virtual ~MCCodeEmitter();
- /// Lifetime management
- virtual void reset() {}
- /// Emit the prefixes of given instruction on the output stream.
- ///
- /// \param Inst a single low-level machine instruction.
- /// \param OS output stream.
- virtual void emitPrefix(const MCInst &Inst, raw_ostream &OS,
- const MCSubtargetInfo &STI) const {}
- /// EncodeInstruction - Encode the given \p Inst to bytes on the output
- /// stream \p OS.
- virtual void encodeInstruction(const MCInst &Inst, raw_ostream &OS,
- SmallVectorImpl<MCFixup> &Fixups,
- const MCSubtargetInfo &STI) const = 0;
- };
- } // end namespace llvm
- #endif // LLVM_MC_MCCODEEMITTER_H
- #ifdef __GNUC__
- #pragma GCC diagnostic pop
- #endif
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