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_OPCODES_H_ 6 #define V8_WASM_OPCODES_H_ 7 8 #include "src/machine-type.h" 9 #include "src/signature.h" 10 11 namespace v8 { 12 namespace internal { 13 namespace wasm { 14 15 // Binary encoding of local types. 16 enum LocalTypeCode { 17 kLocalVoid = 0, 18 kLocalI32 = 1, 19 kLocalI64 = 2, 20 kLocalF32 = 3, 21 kLocalF64 = 4, 22 kLocalS128 = 5 23 }; 24 25 // Binary encoding of memory types. 26 enum MemTypeCode { 27 kMemI8 = 0, 28 kMemU8 = 1, 29 kMemI16 = 2, 30 kMemU16 = 3, 31 kMemI32 = 4, 32 kMemU32 = 5, 33 kMemI64 = 6, 34 kMemU64 = 7, 35 kMemF32 = 8, 36 kMemF64 = 9, 37 kMemS128 = 10 38 }; 39 40 // We reuse the internal machine type to represent WebAssembly AST types. 41 // A typedef improves readability without adding a whole new type system. 42 typedef MachineRepresentation LocalType; 43 const LocalType kAstStmt = MachineRepresentation::kNone; 44 const LocalType kAstI32 = MachineRepresentation::kWord32; 45 const LocalType kAstI64 = MachineRepresentation::kWord64; 46 const LocalType kAstF32 = MachineRepresentation::kFloat32; 47 const LocalType kAstF64 = MachineRepresentation::kFloat64; 48 const LocalType kAstS128 = MachineRepresentation::kSimd128; 49 // We use kTagged here because kNone is already used by kAstStmt. 50 const LocalType kAstEnd = MachineRepresentation::kTagged; 51 52 typedef Signature<LocalType> FunctionSig; 53 std::ostream& operator<<(std::ostream& os, const FunctionSig& function); 54 55 typedef Vector<const char> WasmName; 56 57 typedef int WasmCodePosition; 58 const WasmCodePosition kNoCodePosition = -1; 59 60 // Control expressions and blocks. 61 #define FOREACH_CONTROL_OPCODE(V) \ 62 V(Nop, 0x00, _) \ 63 V(Block, 0x01, _) \ 64 V(Loop, 0x02, _) \ 65 V(If, 0x03, _) \ 66 V(Else, 0x04, _) \ 67 V(Select, 0x05, _) \ 68 V(Br, 0x06, _) \ 69 V(BrIf, 0x07, _) \ 70 V(BrTable, 0x08, _) \ 71 V(Return, 0x09, _) \ 72 V(Unreachable, 0x0a, _) \ 73 V(End, 0x0F, _) 74 75 // Constants, locals, globals, and calls. 76 #define FOREACH_MISC_OPCODE(V) \ 77 V(I32Const, 0x10, _) \ 78 V(I64Const, 0x11, _) \ 79 V(F64Const, 0x12, _) \ 80 V(F32Const, 0x13, _) \ 81 V(GetLocal, 0x14, _) \ 82 V(SetLocal, 0x15, _) \ 83 V(CallFunction, 0x16, _) \ 84 V(CallIndirect, 0x17, _) \ 85 V(CallImport, 0x18, _) \ 86 V(I8Const, 0xcb, _) \ 87 V(LoadGlobal, 0xcc, _) \ 88 V(StoreGlobal, 0xcd, _) 89 90 // Load memory expressions. 91 #define FOREACH_LOAD_MEM_OPCODE(V) \ 92 V(I32LoadMem8S, 0x20, i_i) \ 93 V(I32LoadMem8U, 0x21, i_i) \ 94 V(I32LoadMem16S, 0x22, i_i) \ 95 V(I32LoadMem16U, 0x23, i_i) \ 96 V(I64LoadMem8S, 0x24, l_i) \ 97 V(I64LoadMem8U, 0x25, l_i) \ 98 V(I64LoadMem16S, 0x26, l_i) \ 99 V(I64LoadMem16U, 0x27, l_i) \ 100 V(I64LoadMem32S, 0x28, l_i) \ 101 V(I64LoadMem32U, 0x29, l_i) \ 102 V(I32LoadMem, 0x2a, i_i) \ 103 V(I64LoadMem, 0x2b, l_i) \ 104 V(F32LoadMem, 0x2c, f_i) \ 105 V(F64LoadMem, 0x2d, d_i) 106 107 // Store memory expressions. 108 #define FOREACH_STORE_MEM_OPCODE(V) \ 109 V(I32StoreMem8, 0x2e, i_ii) \ 110 V(I32StoreMem16, 0x2f, i_ii) \ 111 V(I64StoreMem8, 0x30, l_il) \ 112 V(I64StoreMem16, 0x31, l_il) \ 113 V(I64StoreMem32, 0x32, l_il) \ 114 V(I32StoreMem, 0x33, i_ii) \ 115 V(I64StoreMem, 0x34, l_il) \ 116 V(F32StoreMem, 0x35, f_if) \ 117 V(F64StoreMem, 0x36, d_id) 118 119 // Load memory expressions. 120 #define FOREACH_MISC_MEM_OPCODE(V) \ 121 V(GrowMemory, 0x39, i_i) \ 122 V(MemorySize, 0x3b, i_v) 123 124 // Expressions with signatures. 125 #define FOREACH_SIMPLE_OPCODE(V) \ 126 V(I32Add, 0x40, i_ii) \ 127 V(I32Sub, 0x41, i_ii) \ 128 V(I32Mul, 0x42, i_ii) \ 129 V(I32DivS, 0x43, i_ii) \ 130 V(I32DivU, 0x44, i_ii) \ 131 V(I32RemS, 0x45, i_ii) \ 132 V(I32RemU, 0x46, i_ii) \ 133 V(I32And, 0x47, i_ii) \ 134 V(I32Ior, 0x48, i_ii) \ 135 V(I32Xor, 0x49, i_ii) \ 136 V(I32Shl, 0x4a, i_ii) \ 137 V(I32ShrU, 0x4b, i_ii) \ 138 V(I32ShrS, 0x4c, i_ii) \ 139 V(I32Eq, 0x4d, i_ii) \ 140 V(I32Ne, 0x4e, i_ii) \ 141 V(I32LtS, 0x4f, i_ii) \ 142 V(I32LeS, 0x50, i_ii) \ 143 V(I32LtU, 0x51, i_ii) \ 144 V(I32LeU, 0x52, i_ii) \ 145 V(I32GtS, 0x53, i_ii) \ 146 V(I32GeS, 0x54, i_ii) \ 147 V(I32GtU, 0x55, i_ii) \ 148 V(I32GeU, 0x56, i_ii) \ 149 V(I32Clz, 0x57, i_i) \ 150 V(I32Ctz, 0x58, i_i) \ 151 V(I32Popcnt, 0x59, i_i) \ 152 V(I32Eqz, 0x5a, i_i) \ 153 V(I64Add, 0x5b, l_ll) \ 154 V(I64Sub, 0x5c, l_ll) \ 155 V(I64Mul, 0x5d, l_ll) \ 156 V(I64DivS, 0x5e, l_ll) \ 157 V(I64DivU, 0x5f, l_ll) \ 158 V(I64RemS, 0x60, l_ll) \ 159 V(I64RemU, 0x61, l_ll) \ 160 V(I64And, 0x62, l_ll) \ 161 V(I64Ior, 0x63, l_ll) \ 162 V(I64Xor, 0x64, l_ll) \ 163 V(I64Shl, 0x65, l_ll) \ 164 V(I64ShrU, 0x66, l_ll) \ 165 V(I64ShrS, 0x67, l_ll) \ 166 V(I64Eq, 0x68, i_ll) \ 167 V(I64Ne, 0x69, i_ll) \ 168 V(I64LtS, 0x6a, i_ll) \ 169 V(I64LeS, 0x6b, i_ll) \ 170 V(I64LtU, 0x6c, i_ll) \ 171 V(I64LeU, 0x6d, i_ll) \ 172 V(I64GtS, 0x6e, i_ll) \ 173 V(I64GeS, 0x6f, i_ll) \ 174 V(I64GtU, 0x70, i_ll) \ 175 V(I64GeU, 0x71, i_ll) \ 176 V(I64Clz, 0x72, l_l) \ 177 V(I64Ctz, 0x73, l_l) \ 178 V(I64Popcnt, 0x74, l_l) \ 179 V(I64Eqz, 0xba, i_l) \ 180 V(F32Add, 0x75, f_ff) \ 181 V(F32Sub, 0x76, f_ff) \ 182 V(F32Mul, 0x77, f_ff) \ 183 V(F32Div, 0x78, f_ff) \ 184 V(F32Min, 0x79, f_ff) \ 185 V(F32Max, 0x7a, f_ff) \ 186 V(F32Abs, 0x7b, f_f) \ 187 V(F32Neg, 0x7c, f_f) \ 188 V(F32CopySign, 0x7d, f_ff) \ 189 V(F32Ceil, 0x7e, f_f) \ 190 V(F32Floor, 0x7f, f_f) \ 191 V(F32Trunc, 0x80, f_f) \ 192 V(F32NearestInt, 0x81, f_f) \ 193 V(F32Sqrt, 0x82, f_f) \ 194 V(F32Eq, 0x83, i_ff) \ 195 V(F32Ne, 0x84, i_ff) \ 196 V(F32Lt, 0x85, i_ff) \ 197 V(F32Le, 0x86, i_ff) \ 198 V(F32Gt, 0x87, i_ff) \ 199 V(F32Ge, 0x88, i_ff) \ 200 V(F64Add, 0x89, d_dd) \ 201 V(F64Sub, 0x8a, d_dd) \ 202 V(F64Mul, 0x8b, d_dd) \ 203 V(F64Div, 0x8c, d_dd) \ 204 V(F64Min, 0x8d, d_dd) \ 205 V(F64Max, 0x8e, d_dd) \ 206 V(F64Abs, 0x8f, d_d) \ 207 V(F64Neg, 0x90, d_d) \ 208 V(F64CopySign, 0x91, d_dd) \ 209 V(F64Ceil, 0x92, d_d) \ 210 V(F64Floor, 0x93, d_d) \ 211 V(F64Trunc, 0x94, d_d) \ 212 V(F64NearestInt, 0x95, d_d) \ 213 V(F64Sqrt, 0x96, d_d) \ 214 V(F64Eq, 0x97, i_dd) \ 215 V(F64Ne, 0x98, i_dd) \ 216 V(F64Lt, 0x99, i_dd) \ 217 V(F64Le, 0x9a, i_dd) \ 218 V(F64Gt, 0x9b, i_dd) \ 219 V(F64Ge, 0x9c, i_dd) \ 220 V(I32SConvertF32, 0x9d, i_f) \ 221 V(I32SConvertF64, 0x9e, i_d) \ 222 V(I32UConvertF32, 0x9f, i_f) \ 223 V(I32UConvertF64, 0xa0, i_d) \ 224 V(I32ConvertI64, 0xa1, i_l) \ 225 V(I64SConvertF32, 0xa2, l_f) \ 226 V(I64SConvertF64, 0xa3, l_d) \ 227 V(I64UConvertF32, 0xa4, l_f) \ 228 V(I64UConvertF64, 0xa5, l_d) \ 229 V(I64SConvertI32, 0xa6, l_i) \ 230 V(I64UConvertI32, 0xa7, l_i) \ 231 V(F32SConvertI32, 0xa8, f_i) \ 232 V(F32UConvertI32, 0xa9, f_i) \ 233 V(F32SConvertI64, 0xaa, f_l) \ 234 V(F32UConvertI64, 0xab, f_l) \ 235 V(F32ConvertF64, 0xac, f_d) \ 236 V(F32ReinterpretI32, 0xad, f_i) \ 237 V(F64SConvertI32, 0xae, d_i) \ 238 V(F64UConvertI32, 0xaf, d_i) \ 239 V(F64SConvertI64, 0xb0, d_l) \ 240 V(F64UConvertI64, 0xb1, d_l) \ 241 V(F64ConvertF32, 0xb2, d_f) \ 242 V(F64ReinterpretI64, 0xb3, d_l) \ 243 V(I32ReinterpretF32, 0xb4, i_f) \ 244 V(I64ReinterpretF64, 0xb5, l_d) \ 245 V(I32Ror, 0xb6, i_ii) \ 246 V(I32Rol, 0xb7, i_ii) \ 247 V(I64Ror, 0xb8, l_ll) \ 248 V(I64Rol, 0xb9, l_ll) 249 250 // For compatibility with Asm.js. 251 #define FOREACH_ASMJS_COMPAT_OPCODE(V) \ 252 V(F64Acos, 0xc0, d_d) \ 253 V(F64Asin, 0xc1, d_d) \ 254 V(F64Atan, 0xc2, d_d) \ 255 V(F64Cos, 0xc3, d_d) \ 256 V(F64Sin, 0xc4, d_d) \ 257 V(F64Tan, 0xc5, d_d) \ 258 V(F64Exp, 0xc6, d_d) \ 259 V(F64Log, 0xc7, d_d) \ 260 V(F64Atan2, 0xc8, d_dd) \ 261 V(F64Pow, 0xc9, d_dd) \ 262 V(F64Mod, 0xca, d_dd) \ 263 V(I32AsmjsDivS, 0xd0, i_ii) \ 264 V(I32AsmjsDivU, 0xd1, i_ii) \ 265 V(I32AsmjsRemS, 0xd2, i_ii) \ 266 V(I32AsmjsRemU, 0xd3, i_ii) \ 267 V(I32AsmjsLoadMem8S, 0xd4, i_i) \ 268 V(I32AsmjsLoadMem8U, 0xd5, i_i) \ 269 V(I32AsmjsLoadMem16S, 0xd6, i_i) \ 270 V(I32AsmjsLoadMem16U, 0xd7, i_i) \ 271 V(I32AsmjsLoadMem, 0xd8, i_i) \ 272 V(F32AsmjsLoadMem, 0xd9, f_i) \ 273 V(F64AsmjsLoadMem, 0xda, d_i) \ 274 V(I32AsmjsStoreMem8, 0xdb, i_ii) \ 275 V(I32AsmjsStoreMem16, 0xdc, i_ii) \ 276 V(I32AsmjsStoreMem, 0xdd, i_ii) \ 277 V(F32AsmjsStoreMem, 0xde, f_if) \ 278 V(F64AsmjsStoreMem, 0xdf, d_id) \ 279 V(I32AsmjsSConvertF32, 0xe0, i_f) \ 280 V(I32AsmjsUConvertF32, 0xe1, i_f) \ 281 V(I32AsmjsSConvertF64, 0xe2, i_d) \ 282 V(I32AsmjsUConvertF64, 0xe3, i_d) 283 284 #define FOREACH_SIMD_OPCODE(V) \ 285 V(F32x4Splat, 0xe500, s_f) \ 286 V(F32x4ExtractLane, 0xe501, f_si) \ 287 V(F32x4ReplaceLane, 0xe502, s_sif) \ 288 V(F32x4Abs, 0xe503, s_s) \ 289 V(F32x4Neg, 0xe504, s_s) \ 290 V(F32x4Sqrt, 0xe505, s_s) \ 291 V(F32x4RecipApprox, 0xe506, s_s) \ 292 V(F32x4SqrtApprox, 0xe507, s_s) \ 293 V(F32x4Add, 0xe508, s_ss) \ 294 V(F32x4Sub, 0xe509, s_ss) \ 295 V(F32x4Mul, 0xe50a, s_ss) \ 296 V(F32x4Div, 0xe50b, s_ss) \ 297 V(F32x4Min, 0xe50c, s_ss) \ 298 V(F32x4Max, 0xe50d, s_ss) \ 299 V(F32x4MinNum, 0xe50e, s_ss) \ 300 V(F32x4MaxNum, 0xe50f, s_ss) \ 301 V(F32x4Eq, 0xe510, s_ss) \ 302 V(F32x4Ne, 0xe511, s_ss) \ 303 V(F32x4Lt, 0xe512, s_ss) \ 304 V(F32x4Le, 0xe513, s_ss) \ 305 V(F32x4Gt, 0xe514, s_ss) \ 306 V(F32x4Ge, 0xe515, s_ss) \ 307 V(F32x4Select, 0xe516, s_sss) \ 308 V(F32x4Swizzle, 0xe517, s_s) \ 309 V(F32x4Shuffle, 0xe518, s_ss) \ 310 V(F32x4FromInt32x4, 0xe519, s_s) \ 311 V(F32x4FromUint32x4, 0xe51a, s_s) \ 312 V(I32x4Splat, 0xe51b, s_i) \ 313 V(I32x4ExtractLane, 0xe51c, i_si) \ 314 V(I32x4ReplaceLane, 0xe51d, s_sii) \ 315 V(I32x4Neg, 0xe51e, s_s) \ 316 V(I32x4Add, 0xe51f, s_ss) \ 317 V(I32x4Sub, 0xe520, s_ss) \ 318 V(I32x4Mul, 0xe521, s_ss) \ 319 V(I32x4Min_s, 0xe522, s_ss) \ 320 V(I32x4Max_s, 0xe523, s_ss) \ 321 V(I32x4Shl, 0xe524, s_si) \ 322 V(I32x4Shr_s, 0xe525, s_si) \ 323 V(I32x4Eq, 0xe526, s_ss) \ 324 V(I32x4Ne, 0xe527, s_ss) \ 325 V(I32x4Lt_s, 0xe528, s_ss) \ 326 V(I32x4Le_s, 0xe529, s_ss) \ 327 V(I32x4Gt_s, 0xe52a, s_ss) \ 328 V(I32x4Ge_s, 0xe52b, s_ss) \ 329 V(I32x4Select, 0xe52c, s_sss) \ 330 V(I32x4Swizzle, 0xe52d, s_s) \ 331 V(I32x4Shuffle, 0xe52e, s_ss) \ 332 V(I32x4FromFloat32x4, 0xe52f, s_s) \ 333 V(I32x4Min_u, 0xe530, s_ss) \ 334 V(I32x4Max_u, 0xe531, s_ss) \ 335 V(I32x4Shr_u, 0xe532, s_ss) \ 336 V(I32x4Lt_u, 0xe533, s_ss) \ 337 V(I32x4Le_u, 0xe534, s_ss) \ 338 V(I32x4Gt_u, 0xe535, s_ss) \ 339 V(I32x4Ge_u, 0xe536, s_ss) \ 340 V(Ui32x4FromFloat32x4, 0xe537, s_s) \ 341 V(I16x8Splat, 0xe538, s_i) \ 342 V(I16x8ExtractLane, 0xe539, i_si) \ 343 V(I16x8ReplaceLane, 0xe53a, s_sii) \ 344 V(I16x8Neg, 0xe53b, s_s) \ 345 V(I16x8Add, 0xe53c, s_ss) \ 346 V(I16x8AddSaturate_s, 0xe53d, s_ss) \ 347 V(I16x8Sub, 0xe53e, s_ss) \ 348 V(I16x8SubSaturate_s, 0xe53f, s_ss) \ 349 V(I16x8Mul, 0xe540, s_ss) \ 350 V(I16x8Min_s, 0xe541, s_ss) \ 351 V(I16x8Max_s, 0xe542, s_ss) \ 352 V(I16x8Shl, 0xe543, s_si) \ 353 V(I16x8Shr_s, 0xe544, s_si) \ 354 V(I16x8Eq, 0xe545, s_ss) \ 355 V(I16x8Ne, 0xe546, s_ss) \ 356 V(I16x8Lt_s, 0xe547, s_ss) \ 357 V(I16x8Le_s, 0xe548, s_ss) \ 358 V(I16x8Gt_s, 0xe549, s_ss) \ 359 V(I16x8Ge_s, 0xe54a, s_ss) \ 360 V(I16x8Select, 0xe54b, s_sss) \ 361 V(I16x8Swizzle, 0xe54c, s_s) \ 362 V(I16x8Shuffle, 0xe54d, s_ss) \ 363 V(I16x8AddSaturate_u, 0xe54e, s_ss) \ 364 V(I16x8SubSaturate_u, 0xe54f, s_ss) \ 365 V(I16x8Min_u, 0xe550, s_ss) \ 366 V(I16x8Max_u, 0xe551, s_ss) \ 367 V(I16x8Shr_u, 0xe552, s_si) \ 368 V(I16x8Lt_u, 0xe553, s_ss) \ 369 V(I16x8Le_u, 0xe554, s_ss) \ 370 V(I16x8Gt_u, 0xe555, s_ss) \ 371 V(I16x8Ge_u, 0xe556, s_ss) \ 372 V(I8x16Splat, 0xe557, s_i) \ 373 V(I8x16ExtractLane, 0xe558, i_si) \ 374 V(I8x16ReplaceLane, 0xe559, s_sii) \ 375 V(I8x16Neg, 0xe55a, s_s) \ 376 V(I8x16Add, 0xe55b, s_ss) \ 377 V(I8x16AddSaturate_s, 0xe55c, s_ss) \ 378 V(I8x16Sub, 0xe55d, s_ss) \ 379 V(I8x16SubSaturate_s, 0xe55e, s_ss) \ 380 V(I8x16Mul, 0xe55f, s_ss) \ 381 V(I8x16Min_s, 0xe560, s_ss) \ 382 V(I8x16Max_s, 0xe561, s_ss) \ 383 V(I8x16Shl, 0xe562, s_si) \ 384 V(I8x16Shr_s, 0xe563, s_si) \ 385 V(I8x16Eq, 0xe564, s_ss) \ 386 V(I8x16Neq, 0xe565, s_ss) \ 387 V(I8x16Lt_s, 0xe566, s_ss) \ 388 V(I8x16Le_s, 0xe567, s_ss) \ 389 V(I8x16Gt_s, 0xe568, s_ss) \ 390 V(I8x16Ge_s, 0xe569, s_ss) \ 391 V(I8x16Select, 0xe56a, s_sss) \ 392 V(I8x16Swizzle, 0xe56b, s_s) \ 393 V(I8x16Shuffle, 0xe56c, s_ss) \ 394 V(I8x16AddSaturate_u, 0xe56d, s_ss) \ 395 V(I8x16Sub_saturate_u, 0xe56e, s_ss) \ 396 V(I8x16Min_u, 0xe56f, s_ss) \ 397 V(I8x16Max_u, 0xe570, s_ss) \ 398 V(I8x16Shr_u, 0xe571, s_ss) \ 399 V(I8x16Lt_u, 0xe572, s_ss) \ 400 V(I8x16Le_u, 0xe573, s_ss) \ 401 V(I8x16Gt_u, 0xe574, s_ss) \ 402 V(I8x16Ge_u, 0xe575, s_ss) \ 403 V(S128And, 0xe576, s_ss) \ 404 V(S128Ior, 0xe577, s_ss) \ 405 V(S128Xor, 0xe578, s_ss) \ 406 V(S128Not, 0xe579, s_s) 407 408 // All opcodes. 409 #define FOREACH_OPCODE(V) \ 410 FOREACH_CONTROL_OPCODE(V) \ 411 FOREACH_MISC_OPCODE(V) \ 412 FOREACH_SIMPLE_OPCODE(V) \ 413 FOREACH_STORE_MEM_OPCODE(V) \ 414 FOREACH_LOAD_MEM_OPCODE(V) \ 415 FOREACH_MISC_MEM_OPCODE(V) \ 416 FOREACH_ASMJS_COMPAT_OPCODE(V) \ 417 FOREACH_SIMD_OPCODE(V) 418 419 // All signatures. 420 #define FOREACH_SIGNATURE(V) \ 421 FOREACH_SIMD_SIGNATURE(V) \ 422 V(i_ii, kAstI32, kAstI32, kAstI32) \ 423 V(i_i, kAstI32, kAstI32) \ 424 V(i_v, kAstI32) \ 425 V(i_ff, kAstI32, kAstF32, kAstF32) \ 426 V(i_f, kAstI32, kAstF32) \ 427 V(i_dd, kAstI32, kAstF64, kAstF64) \ 428 V(i_d, kAstI32, kAstF64) \ 429 V(i_l, kAstI32, kAstI64) \ 430 V(l_ll, kAstI64, kAstI64, kAstI64) \ 431 V(i_ll, kAstI32, kAstI64, kAstI64) \ 432 V(l_l, kAstI64, kAstI64) \ 433 V(l_i, kAstI64, kAstI32) \ 434 V(l_f, kAstI64, kAstF32) \ 435 V(l_d, kAstI64, kAstF64) \ 436 V(f_ff, kAstF32, kAstF32, kAstF32) \ 437 V(f_f, kAstF32, kAstF32) \ 438 V(f_d, kAstF32, kAstF64) \ 439 V(f_i, kAstF32, kAstI32) \ 440 V(f_l, kAstF32, kAstI64) \ 441 V(d_dd, kAstF64, kAstF64, kAstF64) \ 442 V(d_d, kAstF64, kAstF64) \ 443 V(d_f, kAstF64, kAstF32) \ 444 V(d_i, kAstF64, kAstI32) \ 445 V(d_l, kAstF64, kAstI64) \ 446 V(d_id, kAstF64, kAstI32, kAstF64) \ 447 V(f_if, kAstF32, kAstI32, kAstF32) \ 448 V(l_il, kAstI64, kAstI32, kAstI64) 449 450 #define FOREACH_SIMD_SIGNATURE(V) \ 451 V(s_s, kAstS128, kAstS128) \ 452 V(s_f, kAstS128, kAstF32) \ 453 V(f_si, kAstF32, kAstS128, kAstI32) \ 454 V(s_sif, kAstS128, kAstS128, kAstI32, kAstF32) \ 455 V(s_ss, kAstS128, kAstS128, kAstS128) \ 456 V(s_sss, kAstS128, kAstS128, kAstS128, kAstS128) \ 457 V(s_i, kAstS128, kAstI32) \ 458 V(i_si, kAstI32, kAstS128, kAstI32) \ 459 V(s_sii, kAstS128, kAstS128, kAstI32, kAstI32) \ 460 V(s_si, kAstS128, kAstS128, kAstI32) 461 462 enum WasmOpcode { 463 // Declare expression opcodes. 464 #define DECLARE_NAMED_ENUM(name, opcode, sig) kExpr##name = opcode, 465 FOREACH_OPCODE(DECLARE_NAMED_ENUM) 466 #undef DECLARE_NAMED_ENUM 467 }; 468 469 // The reason for a trap. 470 #define FOREACH_WASM_TRAPREASON(V) \ 471 V(TrapUnreachable) \ 472 V(TrapMemOutOfBounds) \ 473 V(TrapDivByZero) \ 474 V(TrapDivUnrepresentable) \ 475 V(TrapRemByZero) \ 476 V(TrapFloatUnrepresentable) \ 477 V(TrapFuncInvalid) \ 478 V(TrapFuncSigMismatch) 479 480 enum TrapReason { 481 #define DECLARE_ENUM(name) k##name, 482 FOREACH_WASM_TRAPREASON(DECLARE_ENUM) 483 kTrapCount 484 #undef DECLARE_ENUM 485 }; 486 487 // A collection of opcode-related static methods. 488 class WasmOpcodes { 489 public: 490 static const char* OpcodeName(WasmOpcode opcode); 491 static const char* ShortOpcodeName(WasmOpcode opcode); 492 static FunctionSig* Signature(WasmOpcode opcode); 493 494 static int TrapReasonToMessageId(TrapReason reason); 495 static const char* TrapReasonMessage(TrapReason reason); 496 497 static byte MemSize(MachineType type) { 498 return 1 << ElementSizeLog2Of(type.representation()); 499 } 500 501 static LocalTypeCode LocalTypeCodeFor(LocalType type) { 502 switch (type) { 503 case kAstI32: 504 return kLocalI32; 505 case kAstI64: 506 return kLocalI64; 507 case kAstF32: 508 return kLocalF32; 509 case kAstF64: 510 return kLocalF64; 511 case kAstStmt: 512 return kLocalVoid; 513 case kAstS128: 514 return kLocalS128; 515 default: 516 UNREACHABLE(); 517 return kLocalVoid; 518 } 519 } 520 521 static MemTypeCode MemTypeCodeFor(MachineType type) { 522 if (type == MachineType::Int8()) { 523 return kMemI8; 524 } else if (type == MachineType::Uint8()) { 525 return kMemU8; 526 } else if (type == MachineType::Int16()) { 527 return kMemI16; 528 } else if (type == MachineType::Uint16()) { 529 return kMemU16; 530 } else if (type == MachineType::Int32()) { 531 return kMemI32; 532 } else if (type == MachineType::Uint32()) { 533 return kMemU32; 534 } else if (type == MachineType::Int64()) { 535 return kMemI64; 536 } else if (type == MachineType::Uint64()) { 537 return kMemU64; 538 } else if (type == MachineType::Float32()) { 539 return kMemF32; 540 } else if (type == MachineType::Float64()) { 541 return kMemF64; 542 } else if (type == MachineType::Simd128()) { 543 return kMemS128; 544 } else { 545 UNREACHABLE(); 546 return kMemI32; 547 } 548 } 549 550 static MachineType MachineTypeFor(LocalType type) { 551 switch (type) { 552 case kAstI32: 553 return MachineType::Int32(); 554 case kAstI64: 555 return MachineType::Int64(); 556 case kAstF32: 557 return MachineType::Float32(); 558 case kAstF64: 559 return MachineType::Float64(); 560 case kAstS128: 561 return MachineType::Simd128(); 562 case kAstStmt: 563 return MachineType::None(); 564 default: 565 UNREACHABLE(); 566 return MachineType::None(); 567 } 568 } 569 570 static LocalType LocalTypeFor(MachineType type) { 571 if (type == MachineType::Int8()) { 572 return kAstI32; 573 } else if (type == MachineType::Uint8()) { 574 return kAstI32; 575 } else if (type == MachineType::Int16()) { 576 return kAstI32; 577 } else if (type == MachineType::Uint16()) { 578 return kAstI32; 579 } else if (type == MachineType::Int32()) { 580 return kAstI32; 581 } else if (type == MachineType::Uint32()) { 582 return kAstI32; 583 } else if (type == MachineType::Int64()) { 584 return kAstI64; 585 } else if (type == MachineType::Uint64()) { 586 return kAstI64; 587 } else if (type == MachineType::Float32()) { 588 return kAstF32; 589 } else if (type == MachineType::Float64()) { 590 return kAstF64; 591 } else if (type == MachineType::Simd128()) { 592 return kAstS128; 593 } else { 594 UNREACHABLE(); 595 return kAstI32; 596 } 597 } 598 599 static WasmOpcode LoadStoreOpcodeOf(MachineType type, bool store) { 600 if (type == MachineType::Int8()) { 601 return store ? kExprI32StoreMem8 : kExprI32LoadMem8S; 602 } else if (type == MachineType::Uint8()) { 603 return store ? kExprI32StoreMem8 : kExprI32LoadMem8U; 604 } else if (type == MachineType::Int16()) { 605 return store ? kExprI32StoreMem16 : kExprI32LoadMem16S; 606 } else if (type == MachineType::Uint16()) { 607 return store ? kExprI32StoreMem16 : kExprI32LoadMem16U; 608 } else if (type == MachineType::Int32()) { 609 return store ? kExprI32StoreMem : kExprI32LoadMem; 610 } else if (type == MachineType::Uint32()) { 611 return store ? kExprI32StoreMem : kExprI32LoadMem; 612 } else if (type == MachineType::Int64()) { 613 return store ? kExprI64StoreMem : kExprI64LoadMem; 614 } else if (type == MachineType::Uint64()) { 615 return store ? kExprI64StoreMem : kExprI64LoadMem; 616 } else if (type == MachineType::Float32()) { 617 return store ? kExprF32StoreMem : kExprF32LoadMem; 618 } else if (type == MachineType::Float64()) { 619 return store ? kExprF64StoreMem : kExprF64LoadMem; 620 } else { 621 UNREACHABLE(); 622 return kExprNop; 623 } 624 } 625 626 static char ShortNameOf(LocalType type) { 627 switch (type) { 628 case kAstI32: 629 return 'i'; 630 case kAstI64: 631 return 'l'; 632 case kAstF32: 633 return 'f'; 634 case kAstF64: 635 return 'd'; 636 case kAstS128: 637 return 's'; 638 case kAstStmt: 639 return 'v'; 640 case kAstEnd: 641 return 'x'; 642 default: 643 UNREACHABLE(); 644 return '?'; 645 } 646 } 647 648 static const char* TypeName(LocalType type) { 649 switch (type) { 650 case kAstI32: 651 return "i32"; 652 case kAstI64: 653 return "i64"; 654 case kAstF32: 655 return "f32"; 656 case kAstF64: 657 return "f64"; 658 case kAstS128: 659 return "s128"; 660 case kAstStmt: 661 return "<stmt>"; 662 case kAstEnd: 663 return "<end>"; 664 default: 665 return "<unknown>"; 666 } 667 } 668 }; 669 } // namespace wasm 670 } // namespace internal 671 } // namespace v8 672 673 #endif // V8_WASM_OPCODES_H_ 674
