1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Copyright (C) 2013-2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(DFG_JIT)
#include "DFGNodeFlags.h"
#include "DFGUseKind.h"
#include "DataFormat.h"
#include "DumpContext.h"
#include <wtf/PrintStream.h>
namespace JSC { namespace DFG {
enum FlushFormat : uint8_t {
DeadFlush,
FlushedInt32,
FlushedInt52,
FlushedDouble,
FlushedCell,
FlushedBoolean,
FlushedJSValue,
ConflictingFlush
};
inline NodeFlags resultFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case FlushedJSValue:
case FlushedCell:
case ConflictingFlush:
return NodeResultJS;
case FlushedInt32:
return NodeResultInt32;
case FlushedInt52:
return NodeResultInt52;
case FlushedDouble:
return NodeResultDouble;
case FlushedBoolean:
return NodeResultBoolean;
}
RELEASE_ASSERT_NOT_REACHED();
return 0;
}
inline UseKind useKindFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case FlushedJSValue:
case ConflictingFlush:
return UntypedUse;
case FlushedCell:
return CellUse;
case FlushedInt32:
return Int32Use;
case FlushedInt52:
return Int52RepUse;
case FlushedDouble:
return DoubleRepUse;
case FlushedBoolean:
return BooleanUse;
}
RELEASE_ASSERT_NOT_REACHED();
return UntypedUse;
}
inline UseKind uncheckedUseKindFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case FlushedJSValue:
case ConflictingFlush:
return UntypedUse;
case FlushedCell:
return KnownCellUse;
case FlushedInt32:
return KnownInt32Use;
case FlushedInt52:
return Int52RepUse;
case FlushedDouble:
return DoubleRepUse;
case FlushedBoolean:
return KnownBooleanUse;
}
RELEASE_ASSERT_NOT_REACHED();
return UntypedUse;
}
inline SpeculatedType typeFilterFor(FlushFormat format)
{
return typeFilterFor(useKindFor(format));
}
inline DataFormat dataFormatFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case ConflictingFlush:
return DataFormatDead;
case FlushedJSValue:
return DataFormatJS;
case FlushedDouble:
return DataFormatDouble;
case FlushedInt32:
return DataFormatInt32;
case FlushedInt52:
return DataFormatInt52;
case FlushedCell:
return DataFormatCell;
case FlushedBoolean:
return DataFormatBoolean;
}
RELEASE_ASSERT_NOT_REACHED();
return DataFormatDead;
}
inline FlushFormat merge(FlushFormat a, FlushFormat b)
{
if (a == DeadFlush)
return b;
if (b == DeadFlush)
return a;
if (a == b)
return a;
return ConflictingFlush;
}
inline bool isConcrete(FlushFormat format)
{
return format != DeadFlush && format != ConflictingFlush;
}
} } // namespace JSC::DFG
namespace WTF {
void printInternal(PrintStream&, JSC::DFG::FlushFormat);
inline JSC::DFG::FlushFormat inContext(JSC::DFG::FlushFormat format, JSC::DumpContext*)
{
return format;
}
} // namespace WTF
#endif // ENABLE(DFG_JIT)
|
