MCCodeEmitter.h revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
1//===-- llvm/MC/MCCodeEmitter.h - Instruction Encoding ----------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_MC_MCCODEEMITTER_H
11#define LLVM_MC_MCCODEEMITTER_H
12
13#include "llvm/Support/Compiler.h"
14
15namespace llvm {
16class MCFixup;
17class MCInst;
18class MCSubtargetInfo;
19class raw_ostream;
20template<typename T> class SmallVectorImpl;
21
22/// MCCodeEmitter - Generic instruction encoding interface.
23class MCCodeEmitter {
24private:
25  MCCodeEmitter(const MCCodeEmitter &) LLVM_DELETED_FUNCTION;
26  void operator=(const MCCodeEmitter &) LLVM_DELETED_FUNCTION;
27protected: // Can only create subclasses.
28  MCCodeEmitter();
29
30public:
31  virtual ~MCCodeEmitter();
32
33  /// Lifetime management
34  virtual void reset() { }
35
36  /// EncodeInstruction - Encode the given \p Inst to bytes on the output
37  /// stream \p OS.
38  virtual void EncodeInstruction(const MCInst &Inst, raw_ostream &OS,
39                                 SmallVectorImpl<MCFixup> &Fixups,
40                                 const MCSubtargetInfo &STI) const = 0;
41};
42
43} // End llvm namespace
44
45#endif
46