/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/CodeGen/Spiller.h
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1 | | //===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- 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 | | #ifndef LLVM_LIB_CODEGEN_SPILLER_H |
11 | | #define LLVM_LIB_CODEGEN_SPILLER_H |
12 | | |
13 | | namespace llvm { |
14 | | |
15 | | class LiveRangeEdit; |
16 | | class MachineFunction; |
17 | | class MachineFunctionPass; |
18 | | class VirtRegMap; |
19 | | |
20 | | /// Spiller interface. |
21 | | /// |
22 | | /// Implementations are utility classes which insert spill or remat code on |
23 | | /// demand. |
24 | | class Spiller { |
25 | | virtual void anchor(); |
26 | | |
27 | | public: |
28 | | virtual ~Spiller() = 0; |
29 | | |
30 | | /// spill - Spill the LRE.getParent() live interval. |
31 | | virtual void spill(LiveRangeEdit &LRE) = 0; |
32 | | |
33 | 0 | virtual void postOptimization() {} |
34 | | }; |
35 | | |
36 | | /// Create and return a spiller that will insert spill code directly instead |
37 | | /// of deferring though VirtRegMap. |
38 | | Spiller *createInlineSpiller(MachineFunctionPass &pass, |
39 | | MachineFunction &mf, |
40 | | VirtRegMap &vrm); |
41 | | |
42 | | } // end namespace llvm |
43 | | |
44 | | #endif // LLVM_LIB_CODEGEN_SPILLER_H |