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"
27 struct CodeGenInstruction;
29 class InstrInfoEmitter : public TableGenBackend {
30 RecordKeeper &Records;
32 InstrInfoEmitter(RecordKeeper &R) : Records(R) {}
34 // run - Output the instruction set description, returning true on failure.
35 void run(std::ostream &OS);
37 // runEnums - Print out enum values for all of the instructions.
38 void runEnums(std::ostream &OS);
40 void printDefList(const std::vector<Record*> &Uses, unsigned Num,
41 std::ostream &OS) const;
42 void emitRecord(const CodeGenInstruction &Inst, unsigned Num,
44 std::map<ListInit*, unsigned> &ListNumbers,
45 std::map<std::vector<Record*>, unsigned> &OpInfo,
47 void emitShiftedValue(Record *R, StringInit *Val, IntInit *Shift,
51 } // End llvm namespace