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#pragma once
27
28#if ENABLE(FTL_JIT)
29
30#include "DataFormat.h"
31#include "FTLAbbreviatedTypes.h"
32
33namespace JSC { namespace FTL {
34
35// This class is mostly used for OSR; it's a way of specifying how a value is formatted
36// in cases where it wouldn't have been obvious from looking at other indicators (like
37// the type of the B3::Value* or the type of the DFG::Node).
38
39class FormattedValue {
40public:
41 FormattedValue()
42 : m_format(DataFormatNone)
43 , m_value(0)
44 {
45 }
46
47 FormattedValue(DataFormat format, LValue value)
48 : m_format(format)
49 , m_value(value)
50 {
51 }
52
53 bool operator!() const
54 {
55 ASSERT((m_format == DataFormatNone) == !m_value);
56 return m_format == DataFormatNone;
57 }
58
59 DataFormat format() const { return m_format; }
60 LValue value() const { return m_value; }
61
62private:
63 DataFormat m_format;
64 LValue m_value;
65};
66
67static inline FormattedValue noValue() { return FormattedValue(); }
68static inline FormattedValue int32Value(LValue value) { return FormattedValue(DataFormatInt32, value); }
69static inline FormattedValue booleanValue(LValue value) { return FormattedValue(DataFormatBoolean, value); }
70static inline FormattedValue jsValueValue(LValue value) { return FormattedValue(DataFormatJS, value); }
71static inline FormattedValue doubleValue(LValue value) { return FormattedValue(DataFormatDouble, value); }
72
73} } // namespace JSC::FTL
74
75#endif // ENABLE(FTL_JIT)
76