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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_x86_LIR_x86_h
#define jit_x86_LIR_x86_h
namespace js {
namespace jit {
class LBoxFloatingPoint : public LInstructionHelper<2, 1, 1>
{
MIRType type_;
public:
LIR_HEADER(BoxFloatingPoint);
LBoxFloatingPoint(const LAllocation& in, const LDefinition& temp, MIRType type)
: type_(type)
{
MOZ_ASSERT(IsFloatingPointType(type));
setOperand(0, in);
setTemp(0, temp);
}
MIRType type() const {
return type_;
}
const char* extraName() const {
return StringFromMIRType(type_);
}
};
class LUnbox : public LInstructionHelper<1, 2, 0>
{
public:
LIR_HEADER(Unbox);
MUnbox* mir() const {
return mir_->toUnbox();
}
const LAllocation* payload() {
return getOperand(0);
}
const LAllocation* type() {
return getOperand(1);
}
const char* extraName() const {
return StringFromMIRType(mir()->type());
}
};
class LUnboxFloatingPoint : public LInstructionHelper<1, 2, 0>
{
MIRType type_;
public:
LIR_HEADER(UnboxFloatingPoint);
static const size_t Input = 0;
LUnboxFloatingPoint(const LBoxAllocation& input, MIRType type)
: type_(type)
{
setBoxOperand(Input, input);
}
MUnbox* mir() const {
return mir_->toUnbox();
}
MIRType type() const {
return type_;
}
const char* extraName() const {
return StringFromMIRType(type_);
}
};
// Convert a 32-bit unsigned integer to a double.
class LWasmUint32ToDouble : public LInstructionHelper<1, 1, 1>
{
public:
LIR_HEADER(WasmUint32ToDouble)
LWasmUint32ToDouble(const LAllocation& input, const LDefinition& temp) {
setOperand(0, input);
setTemp(0, temp);
}
const LDefinition* temp() {
return getTemp(0);
}
};
// Convert a 32-bit unsigned integer to a float32.
class LWasmUint32ToFloat32: public LInstructionHelper<1, 1, 1>
{
public:
LIR_HEADER(WasmUint32ToFloat32)
LWasmUint32ToFloat32(const LAllocation& input, const LDefinition& temp) {
setOperand(0, input);
setTemp(0, temp);
}
const LDefinition* temp() {
return getTemp(0);
}
};
class LDivOrModI64 : public LCallInstructionHelper<INT64_PIECES, INT64_PIECES*2, 0>
{
public:
LIR_HEADER(DivOrModI64)
static const size_t Lhs = 0;
static const size_t Rhs = INT64_PIECES;
LDivOrModI64(const LInt64Allocation& lhs, const LInt64Allocation& rhs)
{
setInt64Operand(Lhs, lhs);
setInt64Operand(Rhs, rhs);
}
MBinaryArithInstruction* mir() const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
return static_cast<MBinaryArithInstruction*>(mir_);
}
bool canBeDivideByZero() const {
if (mir_->isMod())
return mir_->toMod()->canBeDivideByZero();
return mir_->toDiv()->canBeDivideByZero();
}
bool canBeNegativeOverflow() const {
if (mir_->isMod())
return mir_->toMod()->canBeNegativeDividend();
return mir_->toDiv()->canBeNegativeOverflow();
}
wasm::TrapOffset trapOffset() const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
if (mir_->isMod())
return mir_->toMod()->trapOffset();
return mir_->toDiv()->trapOffset();
}
};
class LUDivOrModI64 : public LCallInstructionHelper<INT64_PIECES, INT64_PIECES*2, 0>
{
public:
LIR_HEADER(UDivOrModI64)
static const size_t Lhs = 0;
static const size_t Rhs = INT64_PIECES;
LUDivOrModI64(const LInt64Allocation& lhs, const LInt64Allocation& rhs)
{
setInt64Operand(Lhs, lhs);
setInt64Operand(Rhs, rhs);
}
MBinaryArithInstruction* mir() const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
return static_cast<MBinaryArithInstruction*>(mir_);
}
bool canBeDivideByZero() const {
if (mir_->isMod())
return mir_->toMod()->canBeDivideByZero();
return mir_->toDiv()->canBeDivideByZero();
}
bool canBeNegativeOverflow() const {
if (mir_->isMod())
return mir_->toMod()->canBeNegativeDividend();
return mir_->toDiv()->canBeNegativeOverflow();
}
wasm::TrapOffset trapOffset() const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
if (mir_->isMod())
return mir_->toMod()->trapOffset();
return mir_->toDiv()->trapOffset();
}
};
class LWasmTruncateToInt64 : public LInstructionHelper<INT64_PIECES, 1, 1>
{
public:
LIR_HEADER(WasmTruncateToInt64);
LWasmTruncateToInt64(const LAllocation& in, const LDefinition& temp)
{
setOperand(0, in);
setTemp(0, temp);
}
MWasmTruncateToInt64* mir() const {
return mir_->toWasmTruncateToInt64();
}
const LDefinition* temp() {
return getTemp(0);
}
};
} // namespace jit
} // namespace js
#endif /* jit_x86_LIR_x86_h */
|
