• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 //===- DAGISelEmitter.h - Generate an instruction selector ------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This tablegen backend emits a DAG instruction selector.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef DAGISEL_EMITTER_H
15 #define DAGISEL_EMITTER_H
16 
17 #include "llvm/TableGen/TableGenBackend.h"
18 #include "CodeGenDAGPatterns.h"
19 
20 namespace llvm {
21 
22 /// DAGISelEmitter - The top-level class which coordinates construction
23 /// and emission of the instruction selector.
24 ///
25 class DAGISelEmitter : public TableGenBackend {
26   RecordKeeper &Records;
27   CodeGenDAGPatterns CGP;
28 public:
DAGISelEmitter(RecordKeeper & R)29   explicit DAGISelEmitter(RecordKeeper &R) : Records(R), CGP(R) {}
30 
31   // run - Output the isel, returning true on failure.
32   void run(raw_ostream &OS);
33 };
34 
35 } // End llvm namespace
36 
37 #endif
38