blob: 6ba6e823c54f25f2ef4c45a13c9aedba37cfa566 [file] [log] [blame]
jkummerow@chromium.org93a47f42013-07-02 14:43:41 +00001// Copyright 2013 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6// * Redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer.
8// * Redistributions in binary form must reproduce the above
9// copyright notice, this list of conditions and the following
10// disclaimer in the documentation and/or other materials provided
11// with the distribution.
12// * Neither the name of Google Inc. nor the names of its
13// contributors may be used to endorse or promote products derived
14// from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28#ifndef V8_HYDROGEN_ESCAPE_ANALYSIS_H_
29#define V8_HYDROGEN_ESCAPE_ANALYSIS_H_
30
31#include "allocation.h"
32#include "hydrogen.h"
33
34namespace v8 {
35namespace internal {
36
37
38class HEscapeAnalysisPhase : public HPhase {
39 public:
40 explicit HEscapeAnalysisPhase(HGraph* graph)
41 : HPhase("H_Escape analysis", graph), captured_(0, zone()) { }
42
43 void Run() {
44 CollectCapturedValues();
45 }
46
47 private:
48 void CollectCapturedValues();
49 void CollectIfNoEscapingUses(HInstruction* instr);
50
51 ZoneList<HValue*> captured_;
52};
53
54
55} } // namespace v8::internal
56
57#endif // V8_HYDROGEN_ESCAPE_ANALYSIS_H_