1/*
2 * Copyright (C) 2015-2016 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#pragma once
27
28#if ENABLE(B3_JIT)
29
30#include "B3StackmapValue.h"
31
32namespace JSC { namespace B3 {
33
34class CheckValue : public StackmapValue {
35public:
36 static bool accepts(Kind kind)
37 {
38 switch (kind.opcode()) {
39 case CheckAdd:
40 case CheckSub:
41 case CheckMul:
42 case Check:
43 return true;
44 default:
45 return false;
46 }
47 }
48
49 ~CheckValue();
50
51 void convertToAdd();
52
53 B3_SPECIALIZE_VALUE_FOR_FINAL_SIZE_VARARGS_CHILDREN
54
55private:
56 friend class Procedure;
57 friend class Value;
58
59 // Use this form for CheckAdd, CheckSub, and CheckMul.
60 JS_EXPORT_PRIVATE CheckValue(Kind, Origin, Value* left, Value* right);
61
62 // Use this form for Check.
63 JS_EXPORT_PRIVATE CheckValue(Kind, Origin, Value* predicate);
64};
65
66} } // namespace JSC::B3
67
68#endif // ENABLE(B3_JIT)
69