llvm-6502/utils/TableGen/CodeEmitterGen.h
Misha Brukman 28eefa5464 * Factor out (into new fn) a loop emitting operand shifts into the instruction
* Reverse instruction bit components for a LittleEndian-style encoding
* Fix some comments and spacing


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16975 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 05:53:01 +00:00

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1.2 KiB
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//===- CodeEmitterGen.h - Code Emitter Generator ----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// FIXME: document
//
//===----------------------------------------------------------------------===//
#ifndef CODEMITTERGEN_H
#define CODEMITTERGEN_H
#include "TableGenBackend.h"
#include <map>
#include <vector>
namespace llvm {
class RecordVal;
class CodeEmitterGen : public TableGenBackend {
RecordKeeper &Records;
public:
CodeEmitterGen(RecordKeeper &R) : Records(R) {}
// run - Output the code emitter
void run(std::ostream &o);
private:
void emitMachineOpEmitter(std::ostream &o, const std::string &Namespace);
void emitGetValueBit(std::ostream &o, const std::string &Namespace);
void emitInstrOpBits(std::ostream &o,
const std::vector<RecordVal> &Vals,
std::map<std::string, unsigned> &OpOrder,
std::map<std::string, bool> &OpContinuous);
};
} // End llvm namespace
#endif