1 //===- AsmWriterEmitter.h - Generate an assembly writer ---------*- 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 // This tablegen backend is responsible for emitting an assembly printer for the 11 // code generator. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef ASMWRITER_EMITTER_H 16 #define ASMWRITER_EMITTER_H 17 18 #include "llvm/TableGen/TableGenBackend.h" 19 #include <map> 20 #include <vector> 21 #include <cassert> 22 23 namespace llvm { 24 class AsmWriterInst; 25 class CodeGenInstruction; 26 27 class AsmWriterEmitter : public TableGenBackend { 28 RecordKeeper &Records; 29 std::map<const CodeGenInstruction*, AsmWriterInst*> CGIAWIMap; 30 std::vector<const CodeGenInstruction*> NumberedInstructions; 31 public: 32 AsmWriterEmitter(RecordKeeper &R) : Records(R) {} 33 34 // run - Output the asmwriter, returning true on failure. 35 void run(raw_ostream &o); 36 37 private: 38 void EmitPrintInstruction(raw_ostream &o); 39 void EmitGetRegisterName(raw_ostream &o); 40 void EmitPrintAliasInstruction(raw_ostream &O); 41 42 AsmWriterInst *getAsmWriterInstByID(unsigned ID) const { 43 assert(ID < NumberedInstructions.size()); 44 std::map<const CodeGenInstruction*, AsmWriterInst*>::const_iterator I = 45 CGIAWIMap.find(NumberedInstructions[ID]); 46 assert(I != CGIAWIMap.end() && "Didn't find inst!"); 47 return I->second; 48 } 49 void FindUniqueOperandCommands(std::vector<std::string> &UOC, 50 std::vector<unsigned> &InstIdxs, 51 std::vector<unsigned> &InstOpsUsed) const; 52 }; 53 } 54 #endif 55
