aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm12/include/llvm/CodeGen/Spiller.h
blob: 945d6472439c4473d2775f7b96f117f64f9fd4e6 (plain) (blame)
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
#pragma once

#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif

//===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_CODEGEN_SPILLER_H
#define LLVM_LIB_CODEGEN_SPILLER_H

namespace llvm {

class LiveRangeEdit;
class MachineFunction;
class MachineFunctionPass;
class VirtRegMap;

/// Spiller interface.
///
/// Implementations are utility classes which insert spill or remat code on
/// demand.
class Spiller {
  virtual void anchor();

public:
  virtual ~Spiller() = 0;

  /// spill - Spill the LRE.getParent() live interval.
  virtual void spill(LiveRangeEdit &LRE) = 0;

  virtual void postOptimization() {}
};

/// Create and return a spiller that will insert spill code directly instead
/// of deferring though VirtRegMap.
Spiller *createInlineSpiller(MachineFunctionPass &pass, MachineFunction &mf,
                             VirtRegMap &vrm);

} // end namespace llvm

#endif // LLVM_LIB_CODEGEN_SPILLER_H

#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif