1/*
2 * Copyright (C) 2013 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#include "config.h"
27#include "DFGAtTailAbstractState.h"
28
29#if ENABLE(DFG_JIT)
30
31#include "JSCInlines.h"
32
33namespace JSC { namespace DFG {
34
35AtTailAbstractState::AtTailAbstractState()
36    : m_block(0)
37{
38}
39
40AtTailAbstractState::~AtTailAbstractState() { }
41
42void AtTailAbstractState::createValueForNode(Node* node)
43{
44    m_block->ssa->valuesAtTail.add(node, AbstractValue());
45}
46
47AbstractValue& AtTailAbstractState::forNode(Node* node)
48{
49    HashMap<Node*, AbstractValue>::iterator iter = m_block->ssa->valuesAtTail.find(node);
50    ASSERT(iter != m_block->ssa->valuesAtTail.end());
51    return iter->value;
52}
53
54} } // namespace JSC::DFG
55
56#endif // ENABLE(DFG_JIT)
57
58