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 15 namespace llvm { 16 class MCFixup; 17 class MCInst; 18 class MCSubtargetInfo; 19 class raw_ostream; 20 template<typename T> class SmallVectorImpl; 21 22 /// MCCodeEmitter - Generic instruction encoding interface. 23 class MCCodeEmitter { 24 private: 25 MCCodeEmitter(const MCCodeEmitter &) = delete; 26 void operator=(const MCCodeEmitter &) = delete; 27 protected: // Can only create subclasses. 28 MCCodeEmitter(); 29 30 public: 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
