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81345200 1/*
ed1e77d3 2 * Copyright (C) 2013-2015 Apple Inc. All rights reserved.
81345200
A
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#include "config.h"
27#include "FTLAbstractHeapRepository.h"
28
29#if ENABLE(FTL_JIT)
30
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31#include "DirectArguments.h"
32#include "GetterSetter.h"
33#include "JSEnvironmentRecord.h"
34#include "JSPropertyNameEnumerator.h"
81345200 35#include "JSScope.h"
81345200 36#include "JSCInlines.h"
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37#include "ScopedArguments.h"
38#include "ScopedArgumentsTable.h"
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39
40namespace JSC { namespace FTL {
41
42AbstractHeapRepository::AbstractHeapRepository(LContext context)
43 : root(0, "jscRoot")
44
45#define ABSTRACT_HEAP_INITIALIZATION(name) , name(&root, #name)
46 FOR_EACH_ABSTRACT_HEAP(ABSTRACT_HEAP_INITIALIZATION)
47#undef ABSTRACT_HEAP_INITIALIZATION
48
49#define ABSTRACT_FIELD_INITIALIZATION(name, offset) , name(&root, #name, offset)
50 FOR_EACH_ABSTRACT_FIELD(ABSTRACT_FIELD_INITIALIZATION)
51#undef ABSTRACT_FIELD_INITIALIZATION
52
53 , JSCell_freeListNext(JSCell_structureID)
54
55#define INDEXED_ABSTRACT_HEAP_INITIALIZATION(name, offset, size) , name(context, &root, #name, offset, size)
56 FOR_EACH_INDEXED_ABSTRACT_HEAP(INDEXED_ABSTRACT_HEAP_INITIALIZATION)
57#undef INDEXED_ABSTRACT_HEAP_INITIALIZATION
58
59#define NUMBERED_ABSTRACT_HEAP_INITIALIZATION(name) , name(context, &root, #name)
60 FOR_EACH_NUMBERED_ABSTRACT_HEAP(NUMBERED_ABSTRACT_HEAP_INITIALIZATION)
61#undef NUMBERED_ABSTRACT_HEAP_INITIALIZATION
62
63 , absolute(context, &root, "absolute")
64 , m_context(context)
65 , m_tbaaKind(mdKindID(m_context, "tbaa"))
66{
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67 // Make sure that our explicit assumptions about the StructureIDBlob match reality.
68 RELEASE_ASSERT(!(JSCell_indexingType.offset() & (sizeof(int32_t) - 1)));
69 RELEASE_ASSERT(JSCell_indexingType.offset() + 1 == JSCell_typeInfoType.offset());
70 RELEASE_ASSERT(JSCell_indexingType.offset() + 2 == JSCell_typeInfoFlags.offset());
71 RELEASE_ASSERT(JSCell_indexingType.offset() + 3 == JSCell_gcData.offset());
72
73 JSCell_indexingType.changeParent(&JSCell_usefulBytes);
74 JSCell_typeInfoType.changeParent(&JSCell_usefulBytes);
75 JSCell_typeInfoFlags.changeParent(&JSCell_usefulBytes);
76 JSCell_gcData.changeParent(&JSCell_usefulBytes);
77
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78 root.m_tbaaMetadata = mdNode(m_context, mdString(m_context, root.m_heapName));
79
80 RELEASE_ASSERT(m_tbaaKind);
81 RELEASE_ASSERT(root.m_tbaaMetadata);
82
83 RELEASE_ASSERT(!JSCell_freeListNext.offset());
84}
85
86AbstractHeapRepository::~AbstractHeapRepository()
87{
88}
89
90} } // namespace JSC::FTL
91
92#endif // ENABLE(FTL_JIT)
93