summaryrefslogtreecommitdiff
path: root/lib/CodeGen/VirtRegRewriter.h
blob: 93474e0d7ff73dab36e03d33c9457914a45c83a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
//===-- llvm/CodeGen/VirtRegRewriter.h - VirtRegRewriter -*- C++ -*--------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_VIRTREGREWRITER_H
#define LLVM_CODEGEN_VIRTREGREWRITER_H

namespace llvm {
  class LiveIntervals;
  class MachineFunction;
  class VirtRegMap;
  
  /// VirtRegRewriter interface: Implementations of this interface assign
  /// spilled virtual registers to stack slots, rewriting the code.
  struct VirtRegRewriter {
    virtual ~VirtRegRewriter();
    virtual bool runOnMachineFunction(MachineFunction &MF, VirtRegMap &VRM,
                                      LiveIntervals* LIs) = 0;
  };

  /// createVirtRegRewriter - Create an return a rewriter object, as specified
  /// on the command line.
  VirtRegRewriter* createVirtRegRewriter();

}

#endif