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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/wasm/wasm-opcodes.h" | 5 #include "src/wasm/wasm-opcodes.h" |
6 #include "src/messages.h" | 6 #include "src/messages.h" |
7 #include "src/signature.h" | 7 #include "src/signature.h" |
8 | 8 |
9 namespace v8 { | 9 namespace v8 { |
10 namespace internal { | 10 namespace internal { |
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79 | 79 |
80 static const FunctionSig* kSimpleExprSigs[] = { | 80 static const FunctionSig* kSimpleExprSigs[] = { |
81 nullptr, FOREACH_SIGNATURE(DECLARE_SIG_ENTRY)}; | 81 nullptr, FOREACH_SIGNATURE(DECLARE_SIG_ENTRY)}; |
82 | 82 |
83 #define DECLARE_SIMD_SIG_ENTRY(name, ...) &kSig_##name, | 83 #define DECLARE_SIMD_SIG_ENTRY(name, ...) &kSig_##name, |
84 | 84 |
85 static const FunctionSig* kSimdExprSigs[] = { | 85 static const FunctionSig* kSimdExprSigs[] = { |
86 nullptr, FOREACH_SIMD_SIGNATURE(DECLARE_SIMD_SIG_ENTRY)}; | 86 nullptr, FOREACH_SIMD_SIGNATURE(DECLARE_SIMD_SIG_ENTRY)}; |
87 | 87 |
88 static byte kSimpleExprSigTable[256]; | 88 static byte kSimpleExprSigTable[256]; |
| 89 static byte kSimpleAsmjsExprSigTable[256]; |
89 static byte kSimdExprSigTable[256]; | 90 static byte kSimdExprSigTable[256]; |
90 | 91 |
91 // Initialize the signature table. | 92 // Initialize the signature table. |
92 static void InitSigTables() { | 93 static void InitSigTables() { |
93 #define SET_SIG_TABLE(name, opcode, sig) \ | 94 #define SET_SIG_TABLE(name, opcode, sig) \ |
94 kSimpleExprSigTable[opcode] = static_cast<int>(kSigEnum_##sig) + 1; | 95 kSimpleExprSigTable[opcode] = static_cast<int>(kSigEnum_##sig) + 1; |
95 FOREACH_SIMPLE_OPCODE(SET_SIG_TABLE); | 96 FOREACH_SIMPLE_OPCODE(SET_SIG_TABLE); |
96 FOREACH_SIMPLE_MEM_OPCODE(SET_SIG_TABLE); | |
97 FOREACH_ASMJS_COMPAT_OPCODE(SET_SIG_TABLE); | |
98 #undef SET_SIG_TABLE | 97 #undef SET_SIG_TABLE |
| 98 #define SET_ASMJS_SIG_TABLE(name, opcode, sig) \ |
| 99 kSimpleAsmjsExprSigTable[opcode] = static_cast<int>(kSigEnum_##sig) + 1; |
| 100 FOREACH_ASMJS_COMPAT_OPCODE(SET_ASMJS_SIG_TABLE); |
| 101 #undef SET_ASMJS_SIG_TABLE |
99 byte simd_index; | 102 byte simd_index; |
100 #define SET_SIG_TABLE(name, opcode, sig) \ | 103 #define SET_SIG_TABLE(name, opcode, sig) \ |
101 simd_index = opcode & 0xff; \ | 104 simd_index = opcode & 0xff; \ |
102 kSimdExprSigTable[simd_index] = static_cast<int>(kSigEnum_##sig) + 1; | 105 kSimdExprSigTable[simd_index] = static_cast<int>(kSigEnum_##sig) + 1; |
103 FOREACH_SIMD_0_OPERAND_OPCODE(SET_SIG_TABLE) | 106 FOREACH_SIMD_0_OPERAND_OPCODE(SET_SIG_TABLE) |
104 #undef SET_SIG_TABLE | 107 #undef SET_SIG_TABLE |
105 } | 108 } |
106 | 109 |
107 class SigTable { | 110 class SigTable { |
108 public: | 111 public: |
109 SigTable() { | 112 SigTable() { |
110 // TODO(ahaas): Move {InitSigTable} into the class. | 113 // TODO(ahaas): Move {InitSigTable} into the class. |
111 InitSigTables(); | 114 InitSigTables(); |
112 } | 115 } |
113 FunctionSig* Signature(WasmOpcode opcode) const { | 116 FunctionSig* Signature(WasmOpcode opcode) const { |
114 return const_cast<FunctionSig*>( | 117 return const_cast<FunctionSig*>( |
115 kSimpleExprSigs[kSimpleExprSigTable[static_cast<byte>(opcode)]]); | 118 kSimpleExprSigs[kSimpleExprSigTable[static_cast<byte>(opcode)]]); |
116 } | 119 } |
| 120 FunctionSig* AsmjsSignature(WasmOpcode opcode) const { |
| 121 return const_cast<FunctionSig*>( |
| 122 kSimpleExprSigs[kSimpleAsmjsExprSigTable[static_cast<byte>(opcode)]]); |
| 123 } |
117 FunctionSig* SimdSignature(WasmOpcode opcode) const { | 124 FunctionSig* SimdSignature(WasmOpcode opcode) const { |
118 return const_cast<FunctionSig*>( | 125 return const_cast<FunctionSig*>( |
119 kSimdExprSigs[kSimdExprSigTable[static_cast<byte>(opcode & 0xff)]]); | 126 kSimdExprSigs[kSimdExprSigTable[static_cast<byte>(opcode & 0xff)]]); |
120 } | 127 } |
121 }; | 128 }; |
122 | 129 |
123 static base::LazyInstance<SigTable>::type sig_table = LAZY_INSTANCE_INITIALIZER; | 130 static base::LazyInstance<SigTable>::type sig_table = LAZY_INSTANCE_INITIALIZER; |
124 | 131 |
125 FunctionSig* WasmOpcodes::Signature(WasmOpcode opcode) { | 132 FunctionSig* WasmOpcodes::Signature(WasmOpcode opcode) { |
126 if (opcode >> 8 == kSimdPrefix) { | 133 if (opcode >> 8 == kSimdPrefix) { |
127 return sig_table.Get().SimdSignature(opcode); | 134 return sig_table.Get().SimdSignature(opcode); |
128 } else { | 135 } else { |
129 return sig_table.Get().Signature(opcode); | 136 return sig_table.Get().Signature(opcode); |
130 } | 137 } |
131 } | 138 } |
132 | 139 |
| 140 FunctionSig* WasmOpcodes::AsmjsSignature(WasmOpcode opcode) { |
| 141 return sig_table.Get().AsmjsSignature(opcode); |
| 142 } |
| 143 |
133 // TODO(titzer): pull WASM_64 up to a common header. | 144 // TODO(titzer): pull WASM_64 up to a common header. |
134 #if !V8_TARGET_ARCH_32_BIT || V8_TARGET_ARCH_X64 | 145 #if !V8_TARGET_ARCH_32_BIT || V8_TARGET_ARCH_X64 |
135 #define WASM_64 1 | 146 #define WASM_64 1 |
136 #else | 147 #else |
137 #define WASM_64 0 | 148 #define WASM_64 0 |
138 #endif | 149 #endif |
139 | 150 |
140 int WasmOpcodes::TrapReasonToMessageId(TrapReason reason) { | 151 int WasmOpcodes::TrapReasonToMessageId(TrapReason reason) { |
141 switch (reason) { | 152 switch (reason) { |
142 #define TRAPREASON_TO_MESSAGE(name) \ | 153 #define TRAPREASON_TO_MESSAGE(name) \ |
143 case k##name: \ | 154 case k##name: \ |
144 return MessageTemplate::kWasm##name; | 155 return MessageTemplate::kWasm##name; |
145 FOREACH_WASM_TRAPREASON(TRAPREASON_TO_MESSAGE) | 156 FOREACH_WASM_TRAPREASON(TRAPREASON_TO_MESSAGE) |
146 #undef TRAPREASON_TO_MESSAGE | 157 #undef TRAPREASON_TO_MESSAGE |
147 default: | 158 default: |
148 return MessageTemplate::kNone; | 159 return MessageTemplate::kNone; |
149 } | 160 } |
150 } | 161 } |
151 | 162 |
152 const char* WasmOpcodes::TrapReasonMessage(TrapReason reason) { | 163 const char* WasmOpcodes::TrapReasonMessage(TrapReason reason) { |
153 return MessageTemplate::TemplateString(TrapReasonToMessageId(reason)); | 164 return MessageTemplate::TemplateString(TrapReasonToMessageId(reason)); |
154 } | 165 } |
155 } // namespace wasm | 166 } // namespace wasm |
156 } // namespace internal | 167 } // namespace internal |
157 } // namespace v8 | 168 } // namespace v8 |
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