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#include "B3ValueInlines.h"
29
30#if ENABLE(B3_JIT)
31
32namespace JSC { namespace B3 {
33
34AtomicValue::~AtomicValue()
35{
36}
37
38void AtomicValue::dumpMeta(CommaPrinter& comma, PrintStream& out) const
39{
40 out.print(comma, "width = ", m_width);
41
42 MemoryValue::dumpMeta(comma, out);
43}
44
45AtomicValue::AtomicValue(AtomicValue::AtomicValueRMW, Kind kind, Origin origin, Width width, Value* operand, Value* pointer, MemoryValue::OffsetType offset, HeapRange range, HeapRange fenceRange)
46 : MemoryValue(CheckedOpcode, kind, operand->type(), Two, origin, offset, range, fenceRange, operand, pointer)
47 , m_width(width)
48{
49 ASSERT(bestType(GP, accessWidth()) == accessType());
50
51 switch (kind.opcode()) {
52 case AtomicXchgAdd:
53 case AtomicXchgAnd:
54 case AtomicXchgOr:
55 case AtomicXchgSub:
56 case AtomicXchgXor:
57 case AtomicXchg:
58 break;
59 default:
60 ASSERT_NOT_REACHED();
61 }
62}
63
64AtomicValue::AtomicValue(AtomicValue::AtomicValueCAS, Kind kind, Origin origin, Width width, Value* expectedValue, Value* newValue, Value* pointer, MemoryValue::OffsetType offset, HeapRange range, HeapRange fenceRange)
65 : MemoryValue(CheckedOpcode, kind, kind.opcode() == AtomicWeakCAS ? Int32 : expectedValue->type(), Three, origin, offset, range, fenceRange, expectedValue, newValue, pointer)
66 , m_width(width)
67{
68 ASSERT(bestType(GP, accessWidth()) == accessType());
69
70 switch (kind.opcode()) {
71 case AtomicWeakCAS:
72 case AtomicStrongCAS:
73 break;
74 default:
75 ASSERT_NOT_REACHED();
76 }
77}
78
79} } // namespace JSC::B3
80
81#endif // ENABLE(B3_JIT)
82
83