1/*
2 * Copyright (C) 2015-2017 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 "B3ValueKey.h"
28
29#if ENABLE(B3_JIT)
30
31#include "B3ArgumentRegValue.h"
32#include "B3ProcedureInlines.h"
33#include "B3SlotBaseValue.h"
34#include "B3ValueInlines.h"
35#include "B3ValueKeyInlines.h"
36
37namespace JSC { namespace B3 {
38
39ValueKey ValueKey::intConstant(Type type, int64_t value)
40{
41 switch (type.kind()) {
42 case Int32:
43 return ValueKey(Const32, Int32, value);
44 case Int64:
45 return ValueKey(Const64, Int64, value);
46 default:
47 RELEASE_ASSERT_NOT_REACHED();
48 return ValueKey();
49 }
50}
51
52void ValueKey::dump(PrintStream& out) const
53{
54 out.print(m_type, " ", m_kind, "(", u.indices[0], ", ", u.indices[1], ", ", u.indices[2], ")");
55}
56
57Value* ValueKey::materialize(Procedure& proc, Origin origin) const
58{
59 // NOTE: We sometimes cannot return a Value* for some key, like for Check and friends. That's because
60 // though those nodes have side exit effects. It would be weird to materialize anything that has a side
61 // exit. We can't possibly know enough about a side exit to know where it would be safe to emit one.
62 switch (opcode()) {
63 case FramePointer:
64 return proc.add<Value>(kind(), type(), origin);
65 case Identity:
66 case Opaque:
67 case Abs:
68 case Floor:
69 case Ceil:
70 case Sqrt:
71 case Neg:
72 case Depend:
73 case SExt8:
74 case SExt16:
75 case SExt32:
76 case ZExt32:
77 case Clz:
78 case Trunc:
79 case IToD:
80 case IToF:
81 case FloatToDouble:
82 case DoubleToFloat:
83 return proc.add<Value>(kind(), type(), origin, child(proc, 0));
84 case Add:
85 case Sub:
86 case Mul:
87 case Div:
88 case UDiv:
89 case Mod:
90 case UMod:
91 case BitAnd:
92 case BitOr:
93 case BitXor:
94 case Shl:
95 case SShr:
96 case ZShr:
97 case RotR:
98 case RotL:
99 case Equal:
100 case NotEqual:
101 case LessThan:
102 case GreaterThan:
103 case Above:
104 case Below:
105 case AboveEqual:
106 case BelowEqual:
107 case EqualOrUnordered:
108 return proc.add<Value>(kind(), type(), origin, child(proc, 0), child(proc, 1));
109 case Select:
110 return proc.add<Value>(kind(), type(), origin, child(proc, 0), child(proc, 1), child(proc, 2));
111 case Const32:
112 return proc.add<Const32Value>(origin, static_cast<int32_t>(value()));
113 case Const64:
114 return proc.add<Const64Value>(origin, value());
115 case ConstDouble:
116 return proc.add<ConstDoubleValue>(origin, doubleValue());
117 case ConstFloat:
118 return proc.add<ConstFloatValue>(origin, floatValue());
119 case ArgumentReg:
120 return proc.add<ArgumentRegValue>(origin, Reg::fromIndex(static_cast<unsigned>(value())));
121 case SlotBase:
122 return proc.add<SlotBaseValue>(origin, proc.stackSlots()[value()]);
123 default:
124 return nullptr;
125 }
126}
127
128} } // namespace JSC::B3
129
130#endif // ENABLE(B3_JIT)
131
132