mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
//===- 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
|