mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-07 12:07:17 +00:00
1a55180238
- Sorry, I can't help myself. - No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74742 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.8 KiB
C++
57 lines
1.8 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 EmitNodeTransforms(raw_ostream &OS);
|
|
void EmitPredicateFunctions(raw_ostream &OS);
|
|
|
|
void GenerateCodeForPattern(const PatternToMatch &Pattern,
|
|
std::vector<std::pair<unsigned, std::string> > &GeneratedCode,
|
|
std::set<std::string> &GeneratedDecl,
|
|
std::vector<std::string> &TargetOpcodes,
|
|
std::vector<std::string> &TargetVTs,
|
|
bool &OutputIsVariadic,
|
|
unsigned &NumInputRootOps);
|
|
void EmitPatterns(std::vector<std::pair<const PatternToMatch*,
|
|
std::vector<std::pair<unsigned, std::string> > > > &Patterns,
|
|
unsigned Indent, raw_ostream &OS);
|
|
|
|
void EmitInstructionSelector(raw_ostream &OS);
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|