1 //===- InstrInfoEmitter.h - Generate a Instruction Set Desc. ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This tablegen backend is responsible for emitting a description of the target
11 // instruction set for the code generator.
13 //===----------------------------------------------------------------------===//
15 #ifndef INSTRINFO_EMITTER_H
16 #define INSTRINFO_EMITTER_H
18 #include "TableGenBackend.h"
25 struct CodeGenInstruction;
27 class InstrInfoEmitter : public TableGenBackend {
28 RecordKeeper &Records;
30 InstrInfoEmitter(RecordKeeper &R) : Records(R) {}
32 // run - Output the instruction set description, returning true on failure.
33 void run(std::ostream &OS);
35 // runEnums - Print out enum values for all of the instructions.
36 void runEnums(std::ostream &OS);
38 void printDefList(ListInit *LI, const std::string &Name,
39 std::ostream &OS) const;
40 void emitRecord(const CodeGenInstruction &Inst, unsigned Num,
41 Record *InstrInfo, std::ostream &OS);
42 void emitShiftedValue(Record *R, StringInit *Val, IntInit *Shift,
46 } // End llvm namespace