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
|
// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_INTERPRETER_BYTECODE_TRAITS_H_
#define V8_INTERPRETER_BYTECODE_TRAITS_H_
#include "src/interpreter/bytecode-operands.h"
namespace v8 {
namespace internal {
namespace interpreter {
template <OperandTypeInfo>
struct OperandTypeInfoTraits {
static const bool kIsScalable = false;
static const bool kIsUnsigned = false;
static const OperandSize kUnscaledSize = OperandSize::kNone;
};
#define DECLARE_OPERAND_TYPE_INFO(Name, Scalable, Unsigned, BaseSize) \
template <> \
struct OperandTypeInfoTraits<OperandTypeInfo::k##Name> { \
static const bool kIsScalable = Scalable; \
static const bool kIsUnsigned = Unsigned; \
static const OperandSize kUnscaledSize = BaseSize; \
};
OPERAND_TYPE_INFO_LIST(DECLARE_OPERAND_TYPE_INFO)
#undef DECLARE_OPERAND_TYPE_INFO
template <OperandType>
struct OperandTraits {
using TypeInfoTraits = OperandTypeInfoTraits<OperandTypeInfo::kNone>;
static const OperandTypeInfo kOperandTypeInfo = OperandTypeInfo::kNone;
};
#define DECLARE_OPERAND_TYPE_TRAITS(Name, InfoType) \
template <> \
struct OperandTraits<OperandType::k##Name> { \
using TypeInfoTraits = OperandTypeInfoTraits<InfoType>; \
static const OperandTypeInfo kOperandTypeInfo = InfoType; \
};
OPERAND_TYPE_LIST(DECLARE_OPERAND_TYPE_TRAITS)
#undef DECLARE_OPERAND_TYPE_TRAITS
template <OperandType operand_type, OperandScale operand_scale>
struct OperandScaler {
template <bool, OperandSize, OperandScale>
struct Helper {
static const int kSize = 0;
};
template <OperandSize size, OperandScale scale>
struct Helper<false, size, scale> {
static const int kSize = static_cast<int>(size);
};
template <OperandSize size, OperandScale scale>
struct Helper<true, size, scale> {
static const int kSize = static_cast<int>(size) * static_cast<int>(scale);
};
static const int kSize =
Helper<OperandTraits<operand_type>::TypeInfoTraits::kIsScalable,
OperandTraits<operand_type>::TypeInfoTraits::kUnscaledSize,
operand_scale>::kSize;
static const OperandSize kOperandSize = static_cast<OperandSize>(kSize);
};
template <int... values>
struct SumHelper;
template <int value>
struct SumHelper<value> {
static const int kValue = value;
};
template <int value, int... values>
struct SumHelper<value, values...> {
static const int kValue = value + SumHelper<values...>::kValue;
};
template <ImplicitRegisterUse implicit_register_use, OperandType... operands>
struct BytecodeTraits {
static const OperandType kOperandTypes[];
static const OperandTypeInfo kOperandTypeInfos[];
static const OperandSize kSingleScaleOperandSizes[];
static const OperandSize kDoubleScaleOperandSizes[];
static const OperandSize kQuadrupleScaleOperandSizes[];
static const int kSingleScaleSize = SumHelper<
1, OperandScaler<operands, OperandScale::kSingle>::kSize...>::kValue;
static const int kDoubleScaleSize = SumHelper<
1, OperandScaler<operands, OperandScale::kDouble>::kSize...>::kValue;
static const int kQuadrupleScaleSize = SumHelper<
1, OperandScaler<operands, OperandScale::kQuadruple>::kSize...>::kValue;
static const ImplicitRegisterUse kImplicitRegisterUse = implicit_register_use;
static const int kOperandCount = sizeof...(operands);
};
template <ImplicitRegisterUse implicit_register_use, OperandType... operands>
STATIC_CONST_MEMBER_DEFINITION const OperandType
BytecodeTraits<implicit_register_use, operands...>::kOperandTypes[] = {
operands...};
template <ImplicitRegisterUse implicit_register_use, OperandType... operands>
STATIC_CONST_MEMBER_DEFINITION const OperandTypeInfo
BytecodeTraits<implicit_register_use, operands...>::kOperandTypeInfos[] = {
OperandTraits<operands>::kOperandTypeInfo...};
template <ImplicitRegisterUse implicit_register_use, OperandType... operands>
STATIC_CONST_MEMBER_DEFINITION const OperandSize BytecodeTraits<
implicit_register_use, operands...>::kSingleScaleOperandSizes[] = {
OperandScaler<operands, OperandScale::kSingle>::kOperandSize...};
template <ImplicitRegisterUse implicit_register_use, OperandType... operands>
STATIC_CONST_MEMBER_DEFINITION const OperandSize BytecodeTraits<
implicit_register_use, operands...>::kDoubleScaleOperandSizes[] = {
OperandScaler<operands, OperandScale::kDouble>::kOperandSize...};
template <ImplicitRegisterUse implicit_register_use, OperandType... operands>
STATIC_CONST_MEMBER_DEFINITION const OperandSize BytecodeTraits<
implicit_register_use, operands...>::kQuadrupleScaleOperandSizes[] = {
OperandScaler<operands, OperandScale::kQuadruple>::kOperandSize...};
template <ImplicitRegisterUse implicit_register_use>
struct BytecodeTraits<implicit_register_use> {
static const OperandType kOperandTypes[];
static const OperandTypeInfo kOperandTypeInfos[];
static const OperandSize kSingleScaleOperandSizes[];
static const OperandSize kDoubleScaleOperandSizes[];
static const OperandSize kQuadrupleScaleOperandSizes[];
static const int kSingleScaleSize = 1;
static const int kDoubleScaleSize = 1;
static const int kQuadrupleScaleSize = 1;
static const ImplicitRegisterUse kImplicitRegisterUse = implicit_register_use;
static const int kOperandCount = 0;
};
template <ImplicitRegisterUse implicit_register_use>
STATIC_CONST_MEMBER_DEFINITION const OperandType
BytecodeTraits<implicit_register_use>::kOperandTypes[] = {
OperandType::kNone};
template <ImplicitRegisterUse implicit_register_use>
STATIC_CONST_MEMBER_DEFINITION const OperandTypeInfo
BytecodeTraits<implicit_register_use>::kOperandTypeInfos[] = {
OperandTypeInfo::kNone};
template <ImplicitRegisterUse implicit_register_use>
STATIC_CONST_MEMBER_DEFINITION const OperandSize
BytecodeTraits<implicit_register_use>::kSingleScaleOperandSizes[] = {
OperandSize::kNone};
template <ImplicitRegisterUse implicit_register_use>
STATIC_CONST_MEMBER_DEFINITION const OperandSize
BytecodeTraits<implicit_register_use>::kDoubleScaleOperandSizes[] = {
OperandSize::kNone};
template <ImplicitRegisterUse implicit_register_use>
STATIC_CONST_MEMBER_DEFINITION const OperandSize
BytecodeTraits<implicit_register_use>::kQuadrupleScaleOperandSizes[] = {
OperandSize::kNone};
} // namespace interpreter
} // namespace internal
} // namespace v8
#endif // V8_INTERPRETER_BYTECODE_TRAITS_H_
|
