| //===- InstrInfoEmitter.h - Generate a Instruction Set Desc. ----*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This tablegen backend is responsible for emitting a description of the target |
| // instruction set for the code generator. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef INSTRINFO_EMITTER_H |
| #define INSTRINFO_EMITTER_H |
| |
| #include "TableGenBackend.h" |
| #include "CodeGenDAGPatterns.h" |
| #include <vector> |
| #include <map> |
| |
| namespace llvm { |
| |
| class StringInit; |
| class IntInit; |
| class ListInit; |
| class CodeGenInstruction; |
| |
| class InstrInfoEmitter : public TableGenBackend { |
| RecordKeeper &Records; |
| CodeGenDAGPatterns CDP; |
| std::map<std::string, unsigned> ItinClassMap; |
| |
| public: |
| InstrInfoEmitter(RecordKeeper &R) : Records(R), CDP(R) { } |
| |
| // run - Output the instruction set description, returning true on failure. |
| void run(raw_ostream &OS); |
| |
| private: |
| void emitEnums(raw_ostream &OS); |
| |
| typedef std::map<std::vector<std::string>, unsigned> OperandInfoMapTy; |
| void emitRecord(const CodeGenInstruction &Inst, unsigned Num, |
| Record *InstrInfo, |
| std::map<std::vector<Record*>, unsigned> &EL, |
| const OperandInfoMapTy &OpInfo, |
| raw_ostream &OS); |
| |
| // Itinerary information. |
| void GatherItinClasses(); |
| unsigned getItinClassNumber(const Record *InstRec); |
| |
| // Operand information. |
| void EmitOperandInfo(raw_ostream &OS, OperandInfoMapTy &OperandInfoIDs); |
| std::vector<std::string> GetOperandInfo(const CodeGenInstruction &Inst); |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |