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 3 // found in the LICENSE file. 4 5 #ifndef V8_WASM_WASM_OPCODES_H_ 6 #define V8_WASM_WASM_OPCODES_H_ 7 8 #include <memory> 9 10 #include "src/common/globals.h" 11 #include "src/common/message-template.h" 12 #include "src/wasm/value-type.h" 13 #include "src/wasm/wasm-constants.h" 14 15 namespace v8 { 16 namespace internal { 17 18 namespace wasm { 19 20 class WasmFeatures; 21 struct WasmModule; 22 23 std::ostream& operator<<(std::ostream& os, const FunctionSig& function); 24 bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig, 25 const WasmModule* module, 26 const WasmFeatures&); 27 28 // Control expressions and blocks. 29 #define FOREACH_CONTROL_OPCODE(V) \ 30 V(Unreachable, 0x00, _) \ 31 V(Nop, 0x01, _) \ 32 V(Block, 0x02, _) \ 33 V(Loop, 0x03, _) \ 34 V(If, 0x04, _) \ 35 V(Else, 0x05, _) \ 36 V(Try, 0x06, _ /* eh_prototype */) \ 37 V(Catch, 0x07, _ /* eh_prototype */) \ 38 V(Throw, 0x08, _ /* eh_prototype */) \ 39 V(Rethrow, 0x09, _ /* eh_prototype */) \ 40 V(BrOnExn, 0x0a, _ /* eh prototype */) \ 41 V(End, 0x0b, _) \ 42 V(Br, 0x0c, _) \ 43 V(BrIf, 0x0d, _) \ 44 V(BrTable, 0x0e, _) \ 45 V(Return, 0x0f, _) \ 46 V(CallRef, 0x14, _ /* typed_funcref prototype */) \ 47 V(ReturnCallRef, 0x15, _ /* typed_funcref prototype */) \ 48 V(Let, 0x17, _ /* typed_funcref prototype */) \ 49 V(BrOnNull, 0xd4, _ /* gc prototype */) 50 51 // Constants, locals, globals, and calls. 52 #define FOREACH_MISC_OPCODE(V) \ 53 V(CallFunction, 0x10, _) \ 54 V(CallIndirect, 0x11, _) \ 55 V(ReturnCall, 0x12, _) \ 56 V(ReturnCallIndirect, 0x13, _) \ 57 V(Drop, 0x1a, _) \ 58 V(Select, 0x1b, _) \ 59 V(SelectWithType, 0x1c, _) \ 60 V(LocalGet, 0x20, _) \ 61 V(LocalSet, 0x21, _) \ 62 V(LocalTee, 0x22, _) \ 63 V(GlobalGet, 0x23, _) \ 64 V(GlobalSet, 0x24, _) \ 65 V(TableGet, 0x25, _) \ 66 V(TableSet, 0x26, _) \ 67 V(I32Const, 0x41, _) \ 68 V(I64Const, 0x42, _) \ 69 V(F32Const, 0x43, _) \ 70 V(F64Const, 0x44, _) \ 71 V(RefNull, 0xd0, _) \ 72 V(RefIsNull, 0xd1, _) \ 73 V(RefFunc, 0xd2, _) \ 74 V(RefAsNonNull, 0xd3, _ /* typed_funcref prototype */) 75 76 // Load memory expressions. 77 #define FOREACH_LOAD_MEM_OPCODE(V) \ 78 V(I32LoadMem, 0x28, i_i) \ 79 V(I64LoadMem, 0x29, l_i) \ 80 V(F32LoadMem, 0x2a, f_i) \ 81 V(F64LoadMem, 0x2b, d_i) \ 82 V(I32LoadMem8S, 0x2c, i_i) \ 83 V(I32LoadMem8U, 0x2d, i_i) \ 84 V(I32LoadMem16S, 0x2e, i_i) \ 85 V(I32LoadMem16U, 0x2f, i_i) \ 86 V(I64LoadMem8S, 0x30, l_i) \ 87 V(I64LoadMem8U, 0x31, l_i) \ 88 V(I64LoadMem16S, 0x32, l_i) \ 89 V(I64LoadMem16U, 0x33, l_i) \ 90 V(I64LoadMem32S, 0x34, l_i) \ 91 V(I64LoadMem32U, 0x35, l_i) 92 93 // Store memory expressions. 94 #define FOREACH_STORE_MEM_OPCODE(V) \ 95 V(I32StoreMem, 0x36, v_ii) \ 96 V(I64StoreMem, 0x37, v_il) \ 97 V(F32StoreMem, 0x38, v_if) \ 98 V(F64StoreMem, 0x39, v_id) \ 99 V(I32StoreMem8, 0x3a, v_ii) \ 100 V(I32StoreMem16, 0x3b, v_ii) \ 101 V(I64StoreMem8, 0x3c, v_il) \ 102 V(I64StoreMem16, 0x3d, v_il) \ 103 V(I64StoreMem32, 0x3e, v_il) 104 105 // Miscellaneous memory expressions 106 #define FOREACH_MISC_MEM_OPCODE(V) \ 107 V(MemorySize, 0x3f, i_v) \ 108 V(MemoryGrow, 0x40, i_i) 109 110 // Expressions with signatures. 111 #define FOREACH_SIMPLE_OPCODE(V) \ 112 V(I32Eqz, 0x45, i_i) \ 113 V(I32Eq, 0x46, i_ii) \ 114 V(I32Ne, 0x47, i_ii) \ 115 V(I32LtS, 0x48, i_ii) \ 116 V(I32LtU, 0x49, i_ii) \ 117 V(I32GtS, 0x4a, i_ii) \ 118 V(I32GtU, 0x4b, i_ii) \ 119 V(I32LeS, 0x4c, i_ii) \ 120 V(I32LeU, 0x4d, i_ii) \ 121 V(I32GeS, 0x4e, i_ii) \ 122 V(I32GeU, 0x4f, i_ii) \ 123 V(I64Eqz, 0x50, i_l) \ 124 V(I64Eq, 0x51, i_ll) \ 125 V(I64Ne, 0x52, i_ll) \ 126 V(I64LtS, 0x53, i_ll) \ 127 V(I64LtU, 0x54, i_ll) \ 128 V(I64GtS, 0x55, i_ll) \ 129 V(I64GtU, 0x56, i_ll) \ 130 V(I64LeS, 0x57, i_ll) \ 131 V(I64LeU, 0x58, i_ll) \ 132 V(I64GeS, 0x59, i_ll) \ 133 V(I64GeU, 0x5a, i_ll) \ 134 V(F32Eq, 0x5b, i_ff) \ 135 V(F32Ne, 0x5c, i_ff) \ 136 V(F32Lt, 0x5d, i_ff) \ 137 V(F32Gt, 0x5e, i_ff) \ 138 V(F32Le, 0x5f, i_ff) \ 139 V(F32Ge, 0x60, i_ff) \ 140 V(F64Eq, 0x61, i_dd) \ 141 V(F64Ne, 0x62, i_dd) \ 142 V(F64Lt, 0x63, i_dd) \ 143 V(F64Gt, 0x64, i_dd) \ 144 V(F64Le, 0x65, i_dd) \ 145 V(F64Ge, 0x66, i_dd) \ 146 V(I32Clz, 0x67, i_i) \ 147 V(I32Ctz, 0x68, i_i) \ 148 V(I32Popcnt, 0x69, i_i) \ 149 V(I32Add, 0x6a, i_ii) \ 150 V(I32Sub, 0x6b, i_ii) \ 151 V(I32Mul, 0x6c, i_ii) \ 152 V(I32DivS, 0x6d, i_ii) \ 153 V(I32DivU, 0x6e, i_ii) \ 154 V(I32RemS, 0x6f, i_ii) \ 155 V(I32RemU, 0x70, i_ii) \ 156 V(I32And, 0x71, i_ii) \ 157 V(I32Ior, 0x72, i_ii) \ 158 V(I32Xor, 0x73, i_ii) \ 159 V(I32Shl, 0x74, i_ii) \ 160 V(I32ShrS, 0x75, i_ii) \ 161 V(I32ShrU, 0x76, i_ii) \ 162 V(I32Rol, 0x77, i_ii) \ 163 V(I32Ror, 0x78, i_ii) \ 164 V(I64Clz, 0x79, l_l) \ 165 V(I64Ctz, 0x7a, l_l) \ 166 V(I64Popcnt, 0x7b, l_l) \ 167 V(I64Add, 0x7c, l_ll) \ 168 V(I64Sub, 0x7d, l_ll) \ 169 V(I64Mul, 0x7e, l_ll) \ 170 V(I64DivS, 0x7f, l_ll) \ 171 V(I64DivU, 0x80, l_ll) \ 172 V(I64RemS, 0x81, l_ll) \ 173 V(I64RemU, 0x82, l_ll) \ 174 V(I64And, 0x83, l_ll) \ 175 V(I64Ior, 0x84, l_ll) \ 176 V(I64Xor, 0x85, l_ll) \ 177 V(I64Shl, 0x86, l_ll) \ 178 V(I64ShrS, 0x87, l_ll) \ 179 V(I64ShrU, 0x88, l_ll) \ 180 V(I64Rol, 0x89, l_ll) \ 181 V(I64Ror, 0x8a, l_ll) \ 182 V(F32Abs, 0x8b, f_f) \ 183 V(F32Neg, 0x8c, f_f) \ 184 V(F32Ceil, 0x8d, f_f) \ 185 V(F32Floor, 0x8e, f_f) \ 186 V(F32Trunc, 0x8f, f_f) \ 187 V(F32NearestInt, 0x90, f_f) \ 188 V(F32Sqrt, 0x91, f_f) \ 189 V(F32Add, 0x92, f_ff) \ 190 V(F32Sub, 0x93, f_ff) \ 191 V(F32Mul, 0x94, f_ff) \ 192 V(F32Div, 0x95, f_ff) \ 193 V(F32Min, 0x96, f_ff) \ 194 V(F32Max, 0x97, f_ff) \ 195 V(F32CopySign, 0x98, f_ff) \ 196 V(F64Abs, 0x99, d_d) \ 197 V(F64Neg, 0x9a, d_d) \ 198 V(F64Ceil, 0x9b, d_d) \ 199 V(F64Floor, 0x9c, d_d) \ 200 V(F64Trunc, 0x9d, d_d) \ 201 V(F64NearestInt, 0x9e, d_d) \ 202 V(F64Sqrt, 0x9f, d_d) \ 203 V(F64Add, 0xa0, d_dd) \ 204 V(F64Sub, 0xa1, d_dd) \ 205 V(F64Mul, 0xa2, d_dd) \ 206 V(F64Div, 0xa3, d_dd) \ 207 V(F64Min, 0xa4, d_dd) \ 208 V(F64Max, 0xa5, d_dd) \ 209 V(F64CopySign, 0xa6, d_dd) \ 210 V(I32ConvertI64, 0xa7, i_l) \ 211 V(I32SConvertF32, 0xa8, i_f) \ 212 V(I32UConvertF32, 0xa9, i_f) \ 213 V(I32SConvertF64, 0xaa, i_d) \ 214 V(I32UConvertF64, 0xab, i_d) \ 215 V(I64SConvertI32, 0xac, l_i) \ 216 V(I64UConvertI32, 0xad, l_i) \ 217 V(I64SConvertF32, 0xae, l_f) \ 218 V(I64UConvertF32, 0xaf, l_f) \ 219 V(I64SConvertF64, 0xb0, l_d) \ 220 V(I64UConvertF64, 0xb1, l_d) \ 221 V(F32SConvertI32, 0xb2, f_i) \ 222 V(F32UConvertI32, 0xb3, f_i) \ 223 V(F32SConvertI64, 0xb4, f_l) \ 224 V(F32UConvertI64, 0xb5, f_l) \ 225 V(F32ConvertF64, 0xb6, f_d) \ 226 V(F64SConvertI32, 0xb7, d_i) \ 227 V(F64UConvertI32, 0xb8, d_i) \ 228 V(F64SConvertI64, 0xb9, d_l) \ 229 V(F64UConvertI64, 0xba, d_l) \ 230 V(F64ConvertF32, 0xbb, d_f) \ 231 V(I32ReinterpretF32, 0xbc, i_f) \ 232 V(I64ReinterpretF64, 0xbd, l_d) \ 233 V(F32ReinterpretI32, 0xbe, f_i) \ 234 V(F64ReinterpretI64, 0xbf, d_l) \ 235 V(I32SExtendI8, 0xc0, i_i) \ 236 V(I32SExtendI16, 0xc1, i_i) \ 237 V(I64SExtendI8, 0xc2, l_l) \ 238 V(I64SExtendI16, 0xc3, l_l) \ 239 V(I64SExtendI32, 0xc4, l_l) 240 241 #define FOREACH_SIMPLE_PROTOTYPE_OPCODE(V) V(RefEq, 0xd5, i_qq) 242 243 // For compatibility with Asm.js. 244 // These opcodes are not spec'ed (or visible) externally; the idea is 245 // to use unused ranges for internal purposes. 246 #define FOREACH_ASMJS_COMPAT_OPCODE(V) \ 247 V(F64Acos, 0xc5, d_d) \ 248 V(F64Asin, 0xc6, d_d) \ 249 V(F64Atan, 0xc7, d_d) \ 250 V(F64Cos, 0xc8, d_d) \ 251 V(F64Sin, 0xc9, d_d) \ 252 V(F64Tan, 0xca, d_d) \ 253 V(F64Exp, 0xcb, d_d) \ 254 V(F64Log, 0xcc, d_d) \ 255 V(F64Atan2, 0xcd, d_dd) \ 256 V(F64Pow, 0xce, d_dd) \ 257 V(F64Mod, 0xcf, d_dd) \ 258 V(I32AsmjsDivS, 0xe7, i_ii) \ 259 V(I32AsmjsDivU, 0xe8, i_ii) \ 260 V(I32AsmjsRemS, 0xe9, i_ii) \ 261 V(I32AsmjsRemU, 0xd6, i_ii) \ 262 V(I32AsmjsLoadMem8S, 0xd7, i_i) \ 263 V(I32AsmjsLoadMem8U, 0xd8, i_i) \ 264 V(I32AsmjsLoadMem16S, 0xd9, i_i) \ 265 V(I32AsmjsLoadMem16U, 0xda, i_i) \ 266 V(I32AsmjsLoadMem, 0xdb, i_i) \ 267 V(F32AsmjsLoadMem, 0xdc, f_i) \ 268 V(F64AsmjsLoadMem, 0xdd, d_i) \ 269 V(I32AsmjsStoreMem8, 0xde, i_ii) \ 270 V(I32AsmjsStoreMem16, 0xdf, i_ii) \ 271 V(I32AsmjsStoreMem, 0xe0, i_ii) \ 272 V(F32AsmjsStoreMem, 0xe1, f_if) \ 273 V(F64AsmjsStoreMem, 0xe2, d_id) \ 274 V(I32AsmjsSConvertF32, 0xe3, i_f) \ 275 V(I32AsmjsUConvertF32, 0xe4, i_f) \ 276 V(I32AsmjsSConvertF64, 0xe5, i_d) \ 277 V(I32AsmjsUConvertF64, 0xe6, i_d) 278 279 #define FOREACH_SIMD_MEM_OPCODE(V) \ 280 V(S128LoadMem, 0xfd00, s_i) \ 281 V(S128Load8x8S, 0xfd01, s_i) \ 282 V(S128Load8x8U, 0xfd02, s_i) \ 283 V(S128Load16x4S, 0xfd03, s_i) \ 284 V(S128Load16x4U, 0xfd04, s_i) \ 285 V(S128Load32x2S, 0xfd05, s_i) \ 286 V(S128Load32x2U, 0xfd06, s_i) \ 287 V(S128Load8Splat, 0xfd07, s_i) \ 288 V(S128Load16Splat, 0xfd08, s_i) \ 289 V(S128Load32Splat, 0xfd09, s_i) \ 290 V(S128Load64Splat, 0xfd0a, s_i) \ 291 V(S128StoreMem, 0xfd0b, v_is) \ 292 V(S128Load32Zero, 0xfdfc, s_i) \ 293 V(S128Load64Zero, 0xfdfd, s_i) 294 295 #define FOREACH_SIMD_CONST_OPCODE(V) V(S128Const, 0xfd0c, _) 296 297 #define FOREACH_SIMD_MASK_OPERAND_OPCODE(V) V(I8x16Shuffle, 0xfd0d, s_ss) 298 299 #define FOREACH_SIMD_MVP_0_OPERAND_OPCODE(V) \ 300 V(I8x16Swizzle, 0xfd0e, s_ss) \ 301 V(I8x16Splat, 0xfd0f, s_i) \ 302 V(I16x8Splat, 0xfd10, s_i) \ 303 V(I32x4Splat, 0xfd11, s_i) \ 304 V(I64x2Splat, 0xfd12, s_l) \ 305 V(F32x4Splat, 0xfd13, s_f) \ 306 V(F64x2Splat, 0xfd14, s_d) \ 307 V(I8x16Eq, 0xfd23, s_ss) \ 308 V(I8x16Ne, 0xfd24, s_ss) \ 309 V(I8x16LtS, 0xfd25, s_ss) \ 310 V(I8x16LtU, 0xfd26, s_ss) \ 311 V(I8x16GtS, 0xfd27, s_ss) \ 312 V(I8x16GtU, 0xfd28, s_ss) \ 313 V(I8x16LeS, 0xfd29, s_ss) \ 314 V(I8x16LeU, 0xfd2a, s_ss) \ 315 V(I8x16GeS, 0xfd2b, s_ss) \ 316 V(I8x16GeU, 0xfd2c, s_ss) \ 317 V(I16x8Eq, 0xfd2d, s_ss) \ 318 V(I16x8Ne, 0xfd2e, s_ss) \ 319 V(I16x8LtS, 0xfd2f, s_ss) \ 320 V(I16x8LtU, 0xfd30, s_ss) \ 321 V(I16x8GtS, 0xfd31, s_ss) \ 322 V(I16x8GtU, 0xfd32, s_ss) \ 323 V(I16x8LeS, 0xfd33, s_ss) \ 324 V(I16x8LeU, 0xfd34, s_ss) \ 325 V(I16x8GeS, 0xfd35, s_ss) \ 326 V(I16x8GeU, 0xfd36, s_ss) \ 327 V(I32x4Eq, 0xfd37, s_ss) \ 328 V(I32x4Ne, 0xfd38, s_ss) \ 329 V(I32x4LtS, 0xfd39, s_ss) \ 330 V(I32x4LtU, 0xfd3a, s_ss) \ 331 V(I32x4GtS, 0xfd3b, s_ss) \ 332 V(I32x4GtU, 0xfd3c, s_ss) \ 333 V(I32x4LeS, 0xfd3d, s_ss) \ 334 V(I32x4LeU, 0xfd3e, s_ss) \ 335 V(I32x4GeS, 0xfd3f, s_ss) \ 336 V(I32x4GeU, 0xfd40, s_ss) \ 337 V(F32x4Eq, 0xfd41, s_ss) \ 338 V(F32x4Ne, 0xfd42, s_ss) \ 339 V(F32x4Lt, 0xfd43, s_ss) \ 340 V(F32x4Gt, 0xfd44, s_ss) \ 341 V(F32x4Le, 0xfd45, s_ss) \ 342 V(F32x4Ge, 0xfd46, s_ss) \ 343 V(F64x2Eq, 0xfd47, s_ss) \ 344 V(F64x2Ne, 0xfd48, s_ss) \ 345 V(F64x2Lt, 0xfd49, s_ss) \ 346 V(F64x2Gt, 0xfd4a, s_ss) \ 347 V(F64x2Le, 0xfd4b, s_ss) \ 348 V(F64x2Ge, 0xfd4c, s_ss) \ 349 V(S128Not, 0xfd4d, s_s) \ 350 V(S128And, 0xfd4e, s_ss) \ 351 V(S128AndNot, 0xfd4f, s_ss) \ 352 V(S128Or, 0xfd50, s_ss) \ 353 V(S128Xor, 0xfd51, s_ss) \ 354 V(S128Select, 0xfd52, s_sss) \ 355 V(I8x16Abs, 0xfd60, s_s) \ 356 V(I8x16Neg, 0xfd61, s_s) \ 357 V(V8x16AnyTrue, 0xfd62, i_s) \ 358 V(V8x16AllTrue, 0xfd63, i_s) \ 359 V(I8x16BitMask, 0xfd64, i_s) \ 360 V(I8x16SConvertI16x8, 0xfd65, s_ss) \ 361 V(I8x16UConvertI16x8, 0xfd66, s_ss) \ 362 V(I8x16Shl, 0xfd6b, s_si) \ 363 V(I8x16ShrS, 0xfd6c, s_si) \ 364 V(I8x16ShrU, 0xfd6d, s_si) \ 365 V(I8x16Add, 0xfd6e, s_ss) \ 366 V(I8x16AddSatS, 0xfd6f, s_ss) \ 367 V(I8x16AddSatU, 0xfd70, s_ss) \ 368 V(I8x16Sub, 0xfd71, s_ss) \ 369 V(I8x16SubSatS, 0xfd72, s_ss) \ 370 V(I8x16SubSatU, 0xfd73, s_ss) \ 371 V(I8x16MinS, 0xfd76, s_ss) \ 372 V(I8x16MinU, 0xfd77, s_ss) \ 373 V(I8x16MaxS, 0xfd78, s_ss) \ 374 V(I8x16MaxU, 0xfd79, s_ss) \ 375 V(I8x16RoundingAverageU, 0xfd7b, s_ss) \ 376 V(I16x8Abs, 0xfd80, s_s) \ 377 V(I16x8Neg, 0xfd81, s_s) \ 378 V(V16x8AnyTrue, 0xfd82, i_s) \ 379 V(V16x8AllTrue, 0xfd83, i_s) \ 380 V(I16x8BitMask, 0xfd84, i_s) \ 381 V(I16x8SConvertI32x4, 0xfd85, s_ss) \ 382 V(I16x8UConvertI32x4, 0xfd86, s_ss) \ 383 V(I16x8SConvertI8x16Low, 0xfd87, s_s) \ 384 V(I16x8SConvertI8x16High, 0xfd88, s_s) \ 385 V(I16x8UConvertI8x16Low, 0xfd89, s_s) \ 386 V(I16x8UConvertI8x16High, 0xfd8a, s_s) \ 387 V(I16x8Shl, 0xfd8b, s_si) \ 388 V(I16x8ShrS, 0xfd8c, s_si) \ 389 V(I16x8ShrU, 0xfd8d, s_si) \ 390 V(I16x8Add, 0xfd8e, s_ss) \ 391 V(I16x8AddSatS, 0xfd8f, s_ss) \ 392 V(I16x8AddSatU, 0xfd90, s_ss) \ 393 V(I16x8Sub, 0xfd91, s_ss) \ 394 V(I16x8SubSatS, 0xfd92, s_ss) \ 395 V(I16x8SubSatU, 0xfd93, s_ss) \ 396 V(I16x8Mul, 0xfd95, s_ss) \ 397 V(I16x8MinS, 0xfd96, s_ss) \ 398 V(I16x8MinU, 0xfd97, s_ss) \ 399 V(I16x8MaxS, 0xfd98, s_ss) \ 400 V(I16x8MaxU, 0xfd99, s_ss) \ 401 V(I16x8RoundingAverageU, 0xfd9b, s_ss) \ 402 V(I32x4Abs, 0xfda0, s_s) \ 403 V(I32x4Neg, 0xfda1, s_s) \ 404 V(V32x4AnyTrue, 0xfda2, i_s) \ 405 V(V32x4AllTrue, 0xfda3, i_s) \ 406 V(I32x4BitMask, 0xfda4, i_s) \ 407 V(I32x4SConvertI16x8Low, 0xfda7, s_s) \ 408 V(I32x4SConvertI16x8High, 0xfda8, s_s) \ 409 V(I32x4UConvertI16x8Low, 0xfda9, s_s) \ 410 V(I32x4UConvertI16x8High, 0xfdaa, s_s) \ 411 V(I32x4Shl, 0xfdab, s_si) \ 412 V(I32x4ShrS, 0xfdac, s_si) \ 413 V(I32x4ShrU, 0xfdad, s_si) \ 414 V(I32x4Add, 0xfdae, s_ss) \ 415 V(I32x4Sub, 0xfdb1, s_ss) \ 416 V(I32x4Mul, 0xfdb5, s_ss) \ 417 V(I32x4MinS, 0xfdb6, s_ss) \ 418 V(I32x4MinU, 0xfdb7, s_ss) \ 419 V(I32x4MaxS, 0xfdb8, s_ss) \ 420 V(I32x4MaxU, 0xfdb9, s_ss) \ 421 V(I32x4DotI16x8S, 0xfdba, s_ss) \ 422 V(I64x2Neg, 0xfdc1, s_s) \ 423 V(I64x2Shl, 0xfdcb, s_si) \ 424 V(I64x2ShrS, 0xfdcc, s_si) \ 425 V(I64x2ShrU, 0xfdcd, s_si) \ 426 V(I64x2Add, 0xfdce, s_ss) \ 427 V(I64x2Sub, 0xfdd1, s_ss) \ 428 V(I64x2Mul, 0xfdd5, s_ss) \ 429 V(F32x4Abs, 0xfde0, s_s) \ 430 V(F32x4Neg, 0xfde1, s_s) \ 431 V(F32x4Sqrt, 0xfde3, s_s) \ 432 V(F32x4Add, 0xfde4, s_ss) \ 433 V(F32x4Sub, 0xfde5, s_ss) \ 434 V(F32x4Mul, 0xfde6, s_ss) \ 435 V(F32x4Div, 0xfde7, s_ss) \ 436 V(F32x4Min, 0xfde8, s_ss) \ 437 V(F32x4Max, 0xfde9, s_ss) \ 438 V(F32x4Pmin, 0xfdea, s_ss) \ 439 V(F32x4Pmax, 0xfdeb, s_ss) \ 440 V(F64x2Abs, 0xfdec, s_s) \ 441 V(F64x2Neg, 0xfded, s_s) \ 442 V(F64x2Sqrt, 0xfdef, s_s) \ 443 V(F64x2Add, 0xfdf0, s_ss) \ 444 V(F64x2Sub, 0xfdf1, s_ss) \ 445 V(F64x2Mul, 0xfdf2, s_ss) \ 446 V(F64x2Div, 0xfdf3, s_ss) \ 447 V(F64x2Min, 0xfdf4, s_ss) \ 448 V(F64x2Max, 0xfdf5, s_ss) \ 449 V(F64x2Pmin, 0xfdf6, s_ss) \ 450 V(F64x2Pmax, 0xfdf7, s_ss) \ 451 V(I32x4SConvertF32x4, 0xfdf8, s_s) \ 452 V(I32x4UConvertF32x4, 0xfdf9, s_s) \ 453 V(F32x4SConvertI32x4, 0xfdfa, s_s) \ 454 V(F32x4UConvertI32x4, 0xfdfb, s_s) \ 455 V(F32x4Ceil, 0xfdd8, s_s) \ 456 V(F32x4Floor, 0xfdd9, s_s) \ 457 V(F32x4Trunc, 0xfdda, s_s) \ 458 V(F32x4NearestInt, 0xfddb, s_s) \ 459 V(F64x2Ceil, 0xfddc, s_s) \ 460 V(F64x2Floor, 0xfddd, s_s) \ 461 V(F64x2Trunc, 0xfdde, s_s) \ 462 V(F64x2NearestInt, 0xfddf, s_s) 463 464 #define FOREACH_SIMD_POST_MVP_MEM_OPCODE(V) \ 465 V(S128Load8Lane, 0xfd58, s_is) \ 466 V(S128Load16Lane, 0xfd59, s_is) \ 467 V(S128Load32Lane, 0xfd5a, s_is) \ 468 V(S128Load64Lane, 0xfd5b, s_is) \ 469 V(S128Store8Lane, 0xfd5c, v_is) \ 470 V(S128Store16Lane, 0xfd5d, v_is) \ 471 V(S128Store32Lane, 0xfd5e, v_is) \ 472 V(S128Store64Lane, 0xfd5f, v_is) 473 474 #define FOREACH_SIMD_POST_MVP_OPCODE(V) \ 475 V(I8x16Mul, 0xfd75, s_ss) \ 476 V(I8x16Popcnt, 0xfd7c, s_s) \ 477 V(I8x16SignSelect, 0xfd7d, s_sss) \ 478 V(I16x8SignSelect, 0xfd7e, s_sss) \ 479 V(I32x4SignSelect, 0xfd7f, s_sss) \ 480 V(I64x2SignSelect, 0xfd94, s_sss) \ 481 V(I16x8Q15MulRSatS, 0xfd9c, s_ss) \ 482 V(I16x8ExtMulLowI8x16S, 0xfd9a, s_ss) \ 483 V(I16x8ExtMulHighI8x16S, 0xfd9d, s_ss) \ 484 V(I16x8ExtMulLowI8x16U, 0xfd9e, s_ss) \ 485 V(I16x8ExtMulHighI8x16U, 0xfd9f, s_ss) \ 486 V(I32x4ExtMulLowI16x8S, 0xfdbb, s_ss) \ 487 V(I32x4ExtMulHighI16x8S, 0xfdbd, s_ss) \ 488 V(I32x4ExtMulLowI16x8U, 0xfdbe, s_ss) \ 489 V(I32x4ExtMulHighI16x8U, 0xfdbf, s_ss) \ 490 V(I64x2ExtMulLowI32x4S, 0xfdd2, s_ss) \ 491 V(I64x2ExtMulHighI32x4S, 0xfdd3, s_ss) \ 492 V(I64x2ExtMulLowI32x4U, 0xfdd6, s_ss) \ 493 V(I64x2ExtMulHighI32x4U, 0xfdd7, s_ss) \ 494 V(I32x4ExtAddPairwiseI16x8S, 0xfda5, s_s) \ 495 V(I32x4ExtAddPairwiseI16x8U, 0xfda6, s_s) \ 496 V(I16x8ExtAddPairwiseI8x16S, 0xfdc2, s_s) \ 497 V(I16x8ExtAddPairwiseI8x16U, 0xfdc3, s_s) \ 498 V(I64x2Eq, 0xfdc0, s_ss) \ 499 V(F32x4Qfma, 0xfdb4, s_sss) \ 500 V(I64x2BitMask, 0xfdc4, i_s) \ 501 V(I64x2SConvertI32x4Low, 0xfdc7, s_s) \ 502 V(I64x2SConvertI32x4High, 0xfdc8, s_s) \ 503 V(I64x2UConvertI32x4Low, 0xfdc9, s_s) \ 504 V(I64x2UConvertI32x4High, 0xfdca, s_s) \ 505 V(F32x4Qfms, 0xfdd4, s_sss) \ 506 V(F64x2Qfma, 0xfdfe, s_sss) \ 507 V(F64x2Qfms, 0xfdff, s_sss) \ 508 V(I16x8AddHoriz, 0xfdaf, s_ss) \ 509 V(I32x4AddHoriz, 0xfdb0, s_ss) \ 510 V(F32x4AddHoriz, 0xfdb2, s_ss) \ 511 V(F32x4RecipApprox, 0xfdb3, s_s) \ 512 V(F32x4RecipSqrtApprox, 0xfdbc, s_s) 513 514 #define FOREACH_SIMD_1_OPERAND_1_PARAM_OPCODE(V) \ 515 V(I8x16ExtractLaneS, 0xfd15, _) \ 516 V(I8x16ExtractLaneU, 0xfd16, _) \ 517 V(I16x8ExtractLaneS, 0xfd18, _) \ 518 V(I16x8ExtractLaneU, 0xfd19, _) \ 519 V(I32x4ExtractLane, 0xfd1b, _) \ 520 V(I64x2ExtractLane, 0xfd1d, _) \ 521 V(F32x4ExtractLane, 0xfd1f, _) \ 522 V(F64x2ExtractLane, 0xfd21, _) 523 524 #define FOREACH_SIMD_1_OPERAND_2_PARAM_OPCODE(V) \ 525 V(I8x16ReplaceLane, 0xfd17, _) \ 526 V(I16x8ReplaceLane, 0xfd1a, _) \ 527 V(I32x4ReplaceLane, 0xfd1c, _) \ 528 V(I64x2ReplaceLane, 0xfd1e, _) \ 529 V(F32x4ReplaceLane, 0xfd20, _) \ 530 V(F64x2ReplaceLane, 0xfd22, _) 531 532 #define FOREACH_SIMD_0_OPERAND_OPCODE(V) \ 533 FOREACH_SIMD_MVP_0_OPERAND_OPCODE(V) \ 534 FOREACH_SIMD_POST_MVP_OPCODE(V) 535 536 #define FOREACH_SIMD_1_OPERAND_OPCODE(V) \ 537 FOREACH_SIMD_1_OPERAND_1_PARAM_OPCODE(V) \ 538 FOREACH_SIMD_1_OPERAND_2_PARAM_OPCODE(V) 539 540 #define FOREACH_NUMERIC_OPCODE(V) \ 541 V(I32SConvertSatF32, 0xfc00, i_f) \ 542 V(I32UConvertSatF32, 0xfc01, i_f) \ 543 V(I32SConvertSatF64, 0xfc02, i_d) \ 544 V(I32UConvertSatF64, 0xfc03, i_d) \ 545 V(I64SConvertSatF32, 0xfc04, l_f) \ 546 V(I64UConvertSatF32, 0xfc05, l_f) \ 547 V(I64SConvertSatF64, 0xfc06, l_d) \ 548 V(I64UConvertSatF64, 0xfc07, l_d) \ 549 V(MemoryInit, 0xfc08, v_iii) \ 550 V(DataDrop, 0xfc09, v_v) \ 551 V(MemoryCopy, 0xfc0a, v_iii) \ 552 V(MemoryFill, 0xfc0b, v_iii) \ 553 V(TableInit, 0xfc0c, v_iii) \ 554 V(ElemDrop, 0xfc0d, v_v) \ 555 V(TableCopy, 0xfc0e, v_iii) \ 556 /* TableGrow is polymorphic in the first parameter. */ \ 557 /* It's whatever the table type is. */ \ 558 V(TableGrow, 0xfc0f, i_ci) \ 559 V(TableSize, 0xfc10, i_v) \ 560 /* TableFill is polymorphic in the second parameter. */ \ 561 /* It's whatever the table type is. */ \ 562 V(TableFill, 0xfc11, v_iii) 563 564 #define FOREACH_ATOMIC_OPCODE(V) \ 565 V(AtomicNotify, 0xfe00, i_ii) \ 566 V(I32AtomicWait, 0xfe01, i_iil) \ 567 V(I64AtomicWait, 0xfe02, i_ill) \ 568 V(I32AtomicLoad, 0xfe10, i_i) \ 569 V(I64AtomicLoad, 0xfe11, l_i) \ 570 V(I32AtomicLoad8U, 0xfe12, i_i) \ 571 V(I32AtomicLoad16U, 0xfe13, i_i) \ 572 V(I64AtomicLoad8U, 0xfe14, l_i) \ 573 V(I64AtomicLoad16U, 0xfe15, l_i) \ 574 V(I64AtomicLoad32U, 0xfe16, l_i) \ 575 V(I32AtomicStore, 0xfe17, v_ii) \ 576 V(I64AtomicStore, 0xfe18, v_il) \ 577 V(I32AtomicStore8U, 0xfe19, v_ii) \ 578 V(I32AtomicStore16U, 0xfe1a, v_ii) \ 579 V(I64AtomicStore8U, 0xfe1b, v_il) \ 580 V(I64AtomicStore16U, 0xfe1c, v_il) \ 581 V(I64AtomicStore32U, 0xfe1d, v_il) \ 582 V(I32AtomicAdd, 0xfe1e, i_ii) \ 583 V(I64AtomicAdd, 0xfe1f, l_il) \ 584 V(I32AtomicAdd8U, 0xfe20, i_ii) \ 585 V(I32AtomicAdd16U, 0xfe21, i_ii) \ 586 V(I64AtomicAdd8U, 0xfe22, l_il) \ 587 V(I64AtomicAdd16U, 0xfe23, l_il) \ 588 V(I64AtomicAdd32U, 0xfe24, l_il) \ 589 V(I32AtomicSub, 0xfe25, i_ii) \ 590 V(I64AtomicSub, 0xfe26, l_il) \ 591 V(I32AtomicSub8U, 0xfe27, i_ii) \ 592 V(I32AtomicSub16U, 0xfe28, i_ii) \ 593 V(I64AtomicSub8U, 0xfe29, l_il) \ 594 V(I64AtomicSub16U, 0xfe2a, l_il) \ 595 V(I64AtomicSub32U, 0xfe2b, l_il) \ 596 V(I32AtomicAnd, 0xfe2c, i_ii) \ 597 V(I64AtomicAnd, 0xfe2d, l_il) \ 598 V(I32AtomicAnd8U, 0xfe2e, i_ii) \ 599 V(I32AtomicAnd16U, 0xfe2f, i_ii) \ 600 V(I64AtomicAnd8U, 0xfe30, l_il) \ 601 V(I64AtomicAnd16U, 0xfe31, l_il) \ 602 V(I64AtomicAnd32U, 0xfe32, l_il) \ 603 V(I32AtomicOr, 0xfe33, i_ii) \ 604 V(I64AtomicOr, 0xfe34, l_il) \ 605 V(I32AtomicOr8U, 0xfe35, i_ii) \ 606 V(I32AtomicOr16U, 0xfe36, i_ii) \ 607 V(I64AtomicOr8U, 0xfe37, l_il) \ 608 V(I64AtomicOr16U, 0xfe38, l_il) \ 609 V(I64AtomicOr32U, 0xfe39, l_il) \ 610 V(I32AtomicXor, 0xfe3a, i_ii) \ 611 V(I64AtomicXor, 0xfe3b, l_il) \ 612 V(I32AtomicXor8U, 0xfe3c, i_ii) \ 613 V(I32AtomicXor16U, 0xfe3d, i_ii) \ 614 V(I64AtomicXor8U, 0xfe3e, l_il) \ 615 V(I64AtomicXor16U, 0xfe3f, l_il) \ 616 V(I64AtomicXor32U, 0xfe40, l_il) \ 617 V(I32AtomicExchange, 0xfe41, i_ii) \ 618 V(I64AtomicExchange, 0xfe42, l_il) \ 619 V(I32AtomicExchange8U, 0xfe43, i_ii) \ 620 V(I32AtomicExchange16U, 0xfe44, i_ii) \ 621 V(I64AtomicExchange8U, 0xfe45, l_il) \ 622 V(I64AtomicExchange16U, 0xfe46, l_il) \ 623 V(I64AtomicExchange32U, 0xfe47, l_il) \ 624 V(I32AtomicCompareExchange, 0xfe48, i_iii) \ 625 V(I64AtomicCompareExchange, 0xfe49, l_ill) \ 626 V(I32AtomicCompareExchange8U, 0xfe4a, i_iii) \ 627 V(I32AtomicCompareExchange16U, 0xfe4b, i_iii) \ 628 V(I64AtomicCompareExchange8U, 0xfe4c, l_ill) \ 629 V(I64AtomicCompareExchange16U, 0xfe4d, l_ill) \ 630 V(I64AtomicCompareExchange32U, 0xfe4e, l_ill) 631 632 #define FOREACH_GC_OPCODE(V) \ 633 V(StructNewWithRtt, 0xfb01, _) \ 634 V(StructNewDefault, 0xfb02, _) \ 635 V(StructGet, 0xfb03, _) \ 636 V(StructGetS, 0xfb04, _) \ 637 V(StructGetU, 0xfb05, _) \ 638 V(StructSet, 0xfb06, _) \ 639 V(ArrayNewWithRtt, 0xfb11, _) \ 640 V(ArrayNewDefault, 0xfb12, _) \ 641 V(ArrayGet, 0xfb13, _) \ 642 V(ArrayGetS, 0xfb14, _) \ 643 V(ArrayGetU, 0xfb15, _) \ 644 V(ArraySet, 0xfb16, _) \ 645 V(ArrayLen, 0xfb17, _) \ 646 V(I31New, 0xfb20, _) \ 647 V(I31GetS, 0xfb21, _) \ 648 V(I31GetU, 0xfb22, _) \ 649 V(RttCanon, 0xfb30, _) \ 650 V(RttSub, 0xfb31, _) \ 651 V(RefTest, 0xfb40, _) \ 652 V(RefCast, 0xfb41, _) \ 653 V(BrOnCast, 0xfb42, _) 654 655 #define FOREACH_ATOMIC_0_OPERAND_OPCODE(V) \ 656 /* AtomicFence does not target a particular linear memory. */ \ 657 V(AtomicFence, 0xfe03, v_v) 658 659 // All opcodes. 660 #define FOREACH_OPCODE(V) \ 661 FOREACH_CONTROL_OPCODE(V) \ 662 FOREACH_MISC_OPCODE(V) \ 663 FOREACH_SIMPLE_OPCODE(V) \ 664 FOREACH_SIMPLE_PROTOTYPE_OPCODE(V) \ 665 FOREACH_STORE_MEM_OPCODE(V) \ 666 FOREACH_LOAD_MEM_OPCODE(V) \ 667 FOREACH_MISC_MEM_OPCODE(V) \ 668 FOREACH_ASMJS_COMPAT_OPCODE(V) \ 669 FOREACH_SIMD_0_OPERAND_OPCODE(V) \ 670 FOREACH_SIMD_1_OPERAND_OPCODE(V) \ 671 FOREACH_SIMD_MASK_OPERAND_OPCODE(V) \ 672 FOREACH_SIMD_MEM_OPCODE(V) \ 673 FOREACH_SIMD_POST_MVP_MEM_OPCODE(V) \ 674 FOREACH_SIMD_CONST_OPCODE(V) \ 675 FOREACH_ATOMIC_OPCODE(V) \ 676 FOREACH_ATOMIC_0_OPERAND_OPCODE(V) \ 677 FOREACH_NUMERIC_OPCODE(V) \ 678 FOREACH_GC_OPCODE(V) 679 680 // All signatures. 681 #define FOREACH_SIGNATURE(V) \ 682 FOREACH_SIMD_SIGNATURE(V) \ 683 V(v_v, kWasmStmt) \ 684 V(i_ii, kWasmI32, kWasmI32, kWasmI32) \ 685 V(i_i, kWasmI32, kWasmI32) \ 686 V(i_v, kWasmI32) \ 687 V(i_ff, kWasmI32, kWasmF32, kWasmF32) \ 688 V(i_f, kWasmI32, kWasmF32) \ 689 V(i_dd, kWasmI32, kWasmF64, kWasmF64) \ 690 V(i_d, kWasmI32, kWasmF64) \ 691 V(i_l, kWasmI32, kWasmI64) \ 692 V(l_ll, kWasmI64, kWasmI64, kWasmI64) \ 693 V(i_ll, kWasmI32, kWasmI64, kWasmI64) \ 694 V(l_l, kWasmI64, kWasmI64) \ 695 V(l_i, kWasmI64, kWasmI32) \ 696 V(l_f, kWasmI64, kWasmF32) \ 697 V(l_d, kWasmI64, kWasmF64) \ 698 V(f_ff, kWasmF32, kWasmF32, kWasmF32) \ 699 V(f_f, kWasmF32, kWasmF32) \ 700 V(f_d, kWasmF32, kWasmF64) \ 701 V(f_i, kWasmF32, kWasmI32) \ 702 V(f_l, kWasmF32, kWasmI64) \ 703 V(d_dd, kWasmF64, kWasmF64, kWasmF64) \ 704 V(d_d, kWasmF64, kWasmF64) \ 705 V(d_f, kWasmF64, kWasmF32) \ 706 V(d_i, kWasmF64, kWasmI32) \ 707 V(d_l, kWasmF64, kWasmI64) \ 708 V(v_ii, kWasmStmt, kWasmI32, kWasmI32) \ 709 V(v_id, kWasmStmt, kWasmI32, kWasmF64) \ 710 V(d_id, kWasmF64, kWasmI32, kWasmF64) \ 711 V(v_if, kWasmStmt, kWasmI32, kWasmF32) \ 712 V(f_if, kWasmF32, kWasmI32, kWasmF32) \ 713 V(v_il, kWasmStmt, kWasmI32, kWasmI64) \ 714 V(l_il, kWasmI64, kWasmI32, kWasmI64) \ 715 V(v_iii, kWasmStmt, kWasmI32, kWasmI32, kWasmI32) \ 716 V(i_iii, kWasmI32, kWasmI32, kWasmI32, kWasmI32) \ 717 V(l_ill, kWasmI64, kWasmI32, kWasmI64, kWasmI64) \ 718 V(i_iil, kWasmI32, kWasmI32, kWasmI32, kWasmI64) \ 719 V(i_ill, kWasmI32, kWasmI32, kWasmI64, kWasmI64) \ 720 V(i_e, kWasmI32, kWasmExternRef) \ 721 V(i_ci, kWasmI32, kWasmFuncRef, kWasmI32) \ 722 V(i_qq, kWasmI32, kWasmEqRef, kWasmEqRef) 723 724 #define FOREACH_SIMD_SIGNATURE(V) \ 725 V(s_s, kWasmS128, kWasmS128) \ 726 V(s_f, kWasmS128, kWasmF32) \ 727 V(s_d, kWasmS128, kWasmF64) \ 728 V(s_ss, kWasmS128, kWasmS128, kWasmS128) \ 729 V(s_i, kWasmS128, kWasmI32) \ 730 V(s_l, kWasmS128, kWasmI64) \ 731 V(s_si, kWasmS128, kWasmS128, kWasmI32) \ 732 V(i_s, kWasmI32, kWasmS128) \ 733 V(v_is, kWasmStmt, kWasmI32, kWasmS128) \ 734 V(s_sss, kWasmS128, kWasmS128, kWasmS128, kWasmS128) \ 735 V(s_is, kWasmS128, kWasmI32, kWasmS128) 736 737 #define FOREACH_PREFIX(V) \ 738 V(Numeric, 0xfc) \ 739 V(Simd, 0xfd) \ 740 V(Atomic, 0xfe) \ 741 V(GC, 0xfb) 742 743 enum WasmOpcode { 744 // Declare expression opcodes. 745 #define DECLARE_NAMED_ENUM(name, opcode, sig) kExpr##name = opcode, 746 FOREACH_OPCODE(DECLARE_NAMED_ENUM) 747 #undef DECLARE_NAMED_ENUM 748 #define DECLARE_PREFIX(name, opcode) k##name##Prefix = opcode, 749 FOREACH_PREFIX(DECLARE_PREFIX) 750 #undef DECLARE_PREFIX 751 }; 752 753 enum TrapReason { 754 #define DECLARE_ENUM(name) k##name, 755 FOREACH_WASM_TRAPREASON(DECLARE_ENUM) 756 kTrapCount 757 #undef DECLARE_ENUM 758 }; 759 760 // A collection of opcode-related static methods. 761 class V8_EXPORT_PRIVATE WasmOpcodes { 762 public: 763 static constexpr const char* OpcodeName(WasmOpcode); 764 static constexpr const FunctionSig* Signature(WasmOpcode); 765 static constexpr const FunctionSig* AsmjsSignature(WasmOpcode); 766 static constexpr bool IsPrefixOpcode(WasmOpcode); 767 static constexpr bool IsControlOpcode(WasmOpcode); 768 static constexpr bool IsExternRefOpcode(WasmOpcode); 769 static constexpr bool IsThrowingOpcode(WasmOpcode); 770 static constexpr bool IsSimdPostMvpOpcode(WasmOpcode); 771 // Check whether the given opcode always jumps, i.e. all instructions after 772 // this one in the current block are dead. Returns false for |end|. 773 static constexpr bool IsUnconditionalJump(WasmOpcode); 774 static constexpr bool IsBreakable(WasmOpcode); 775 776 static constexpr MessageTemplate TrapReasonToMessageId(TrapReason); 777 static inline const char* TrapReasonMessage(TrapReason); 778 }; 779 780 // Representation of an initializer expression. 781 class WasmInitExpr { 782 public: 783 enum Operator { 784 kNone, 785 kGlobalGet, 786 kI32Const, 787 kI64Const, 788 kF32Const, 789 kF64Const, 790 kS128Const, 791 kRefNullConst, 792 kRefFuncConst, 793 kRttCanon, 794 kRttSub 795 }; 796 797 union Immediate { 798 int32_t i32_const; 799 int64_t i64_const; 800 float f32_const; 801 double f64_const; 802 std::array<uint8_t, kSimd128Size> s128_const; 803 uint32_t index; 804 HeapType::Representation heap_type; 805 }; 806 WasmInitExpr()807 WasmInitExpr() : kind_(kNone) { immediate_.i32_const = 0; } WasmInitExpr(int32_t v)808 explicit WasmInitExpr(int32_t v) : kind_(kI32Const) { 809 immediate_.i32_const = v; 810 } WasmInitExpr(int64_t v)811 explicit WasmInitExpr(int64_t v) : kind_(kI64Const) { 812 immediate_.i64_const = v; 813 } WasmInitExpr(float v)814 explicit WasmInitExpr(float v) : kind_(kF32Const) { 815 immediate_.f32_const = v; 816 } WasmInitExpr(double v)817 explicit WasmInitExpr(double v) : kind_(kF64Const) { 818 immediate_.f64_const = v; 819 } WasmInitExpr(uint8_t v[kSimd128Size])820 explicit WasmInitExpr(uint8_t v[kSimd128Size]) : kind_(kS128Const) { 821 memcpy(immediate_.s128_const.data(), v, kSimd128Size); 822 } 823 824 MOVE_ONLY_NO_DEFAULT_CONSTRUCTOR(WasmInitExpr); 825 GlobalGet(uint32_t index)826 static WasmInitExpr GlobalGet(uint32_t index) { 827 WasmInitExpr expr; 828 expr.kind_ = kGlobalGet; 829 expr.immediate_.index = index; 830 return expr; 831 } 832 RefFuncConst(uint32_t index)833 static WasmInitExpr RefFuncConst(uint32_t index) { 834 WasmInitExpr expr; 835 expr.kind_ = kRefFuncConst; 836 expr.immediate_.index = index; 837 return expr; 838 } 839 RefNullConst(HeapType::Representation heap_type)840 static WasmInitExpr RefNullConst(HeapType::Representation heap_type) { 841 WasmInitExpr expr; 842 expr.kind_ = kRefNullConst; 843 expr.immediate_.heap_type = heap_type; 844 return expr; 845 } 846 RttCanon(HeapType::Representation heap_type)847 static WasmInitExpr RttCanon(HeapType::Representation heap_type) { 848 WasmInitExpr expr; 849 expr.kind_ = kRttCanon; 850 expr.immediate_.heap_type = heap_type; 851 return expr; 852 } 853 RttSub(HeapType::Representation heap_type,WasmInitExpr supertype)854 static WasmInitExpr RttSub(HeapType::Representation heap_type, 855 WasmInitExpr supertype) { 856 WasmInitExpr expr; 857 expr.kind_ = kRttSub; 858 expr.immediate_.heap_type = heap_type; 859 expr.operand_ = std::make_unique<WasmInitExpr>(std::move(supertype)); 860 return expr; 861 } 862 immediate()863 Immediate immediate() const { return immediate_; } kind()864 Operator kind() const { return kind_; } operand()865 WasmInitExpr* operand() const { return operand_.get(); } 866 867 bool operator==(const WasmInitExpr& other) const { 868 if (kind() != other.kind()) return false; 869 switch (kind()) { 870 case kNone: 871 return true; 872 case kGlobalGet: 873 case kRefFuncConst: 874 return immediate().index == other.immediate().index; 875 case kI32Const: 876 return immediate().i32_const == other.immediate().i32_const; 877 case kI64Const: 878 return immediate().i64_const == other.immediate().i64_const; 879 case kF32Const: 880 return immediate().f32_const == other.immediate().f32_const; 881 case kF64Const: 882 return immediate().f64_const == other.immediate().f64_const; 883 case kS128Const: 884 return immediate().s128_const == other.immediate().s128_const; 885 case kRefNullConst: 886 case kRttCanon: 887 return immediate().heap_type == other.immediate().heap_type; 888 case kRttSub: 889 return immediate().heap_type == other.immediate().heap_type && 890 *operand() == *other.operand(); 891 } 892 } 893 894 V8_INLINE bool operator!=(const WasmInitExpr& other) { 895 return !(*this == other); 896 } 897 898 private: 899 Immediate immediate_; 900 Operator kind_; 901 std::unique_ptr<WasmInitExpr> operand_ = nullptr; 902 }; 903 904 } // namespace wasm 905 } // namespace internal 906 } // namespace v8 907 908 #endif // V8_WASM_WASM_OPCODES_H_ 909