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fpizlo@apple.com6793a322014-02-12 05:42:32 +00001/*
2 * Copyright (C) 2014 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef DFGNodeOrigin_h
27#define DFGNodeOrigin_h
28
29#if ENABLE(DFG_JIT)
30
31#include "CodeOrigin.h"
32
33namespace JSC { namespace DFG {
34
35struct NodeOrigin {
36 NodeOrigin() { }
37
38 explicit NodeOrigin(CodeOrigin codeOrigin)
39 : semantic(codeOrigin)
40 , forExit(codeOrigin)
41 {
42 }
43
44 NodeOrigin(CodeOrigin semantic, CodeOrigin forExit)
45 : semantic(semantic)
46 , forExit(forExit)
47 {
48 }
49
50 bool isSet() const
51 {
fpizlo@apple.com6fa73b52014-10-02 19:38:08 +000052 ASSERT(semantic.isSet() == forExit.isSet());
fpizlo@apple.com6793a322014-02-12 05:42:32 +000053 return semantic.isSet();
54 }
55
56 // Used for determining what bytecode this came from. This is important for
57 // debugging, exceptions, and even basic execution semantics.
58 CodeOrigin semantic;
59 // Code origin for where the node exits to.
60 CodeOrigin forExit;
61};
62
63} } // namespace JSC::DFG
64
65#endif // ENABLE(DFG_JIT)
66
67#endif // DFGNodeOrigin_h
68