llvm-6502/utils/TableGen/DAGISelEmitter.h
2010-03-01 21:49:54 +00:00

41 lines
1.1 KiB
C++

//===- DAGISelEmitter.h - Generate an instruction selector ------*- 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 emits a DAG instruction selector.
//
//===----------------------------------------------------------------------===//
#ifndef DAGISEL_EMITTER_H
#define DAGISEL_EMITTER_H
#include "TableGenBackend.h"
#include "CodeGenDAGPatterns.h"
#include <set>
namespace llvm {
/// DAGISelEmitter - The top-level class which coordinates construction
/// and emission of the instruction selector.
///
class DAGISelEmitter : public TableGenBackend {
RecordKeeper &Records;
CodeGenDAGPatterns CGP;
public:
explicit DAGISelEmitter(RecordKeeper &R) : Records(R), CGP(R) {}
// run - Output the isel, returning true on failure.
void run(raw_ostream &OS);
private:
void EmitPredicateFunctions(raw_ostream &OS);
};
} // End llvm namespace
#endif