1/*
2 * Copyright (C) 2017 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 "B3AtomicValue.h"
28
29#if ENABLE(B3_JIT)
30
31namespace JSC { namespace B3 {
32
33AtomicValue::~AtomicValue()
34{
35}
36
37void AtomicValue::dumpMeta(CommaPrinter& comma, PrintStream& out) const
38{
39 out.print(comma, "width = ", m_width);
40
41 MemoryValue::dumpMeta(comma, out);
42}
43
44Value* AtomicValue::cloneImpl() const
45{
46 return new AtomicValue(*this);
47}
48
49AtomicValue::AtomicValue(AtomicValue::AtomicValueRMW, Kind kind, Origin origin, Width width, Value* operand, Value* pointer, MemoryValue::OffsetType offset, HeapRange range, HeapRange fenceRange)
50 : MemoryValue(CheckedOpcode, kind, operand->type(), origin, offset, range, fenceRange, operand, pointer)
51 , m_width(width)
52{
53 ASSERT(bestType(GP, accessWidth()) == accessType());
54
55 switch (kind.opcode()) {
56 case AtomicXchgAdd:
57 case AtomicXchgAnd:
58 case AtomicXchgOr:
59 case AtomicXchgSub:
60 case AtomicXchgXor:
61 case AtomicXchg:
62 break;
63 default:
64 ASSERT_NOT_REACHED();
65 }
66}
67
68AtomicValue::AtomicValue(AtomicValue::AtomicValueCAS, Kind kind, Origin origin, Width width, Value* expectedValue, Value* newValue, Value* pointer, MemoryValue::OffsetType offset, HeapRange range, HeapRange fenceRange)
69 : MemoryValue(CheckedOpcode, kind, kind.opcode() == AtomicWeakCAS ? Int32 : expectedValue->type(), origin, offset, range, fenceRange, expectedValue, newValue, pointer)
70 , m_width(width)
71{
72 ASSERT(bestType(GP, accessWidth()) == accessType());
73
74 switch (kind.opcode()) {
75 case AtomicWeakCAS:
76 case AtomicStrongCAS:
77 break;
78 default:
79 ASSERT_NOT_REACHED();
80 }
81}
82
83} } // namespace JSC::B3
84
85#endif // ENABLE(B3_JIT)
86
87