Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1 | // Copyright 2016 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 | // Flags: --expose-wasm |
| 6 | |
| 7 | (function TestSwitch0() { |
| 8 | function asmModule() { |
| 9 | "use asm" |
| 10 | |
| 11 | function caller() { |
| 12 | var ret = 0; |
| 13 | var x = 7; |
| 14 | switch (x) { |
| 15 | case 1: { |
| 16 | return 0; |
| 17 | } |
| 18 | case 7: { |
| 19 | ret = 5; |
| 20 | break; |
| 21 | } |
| 22 | default: return 0; |
| 23 | } |
| 24 | return ret|0; |
| 25 | } |
| 26 | |
| 27 | return {caller:caller}; |
| 28 | } |
| 29 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 30 | assertEquals(5, wasm.caller()); |
| 31 | })(); |
| 32 | |
| 33 | (function TestSwitch() { |
| 34 | function asmModule() { |
| 35 | "use asm" |
| 36 | |
| 37 | function caller() { |
| 38 | var ret = 0; |
| 39 | var x = 7; |
| 40 | switch (x) { |
| 41 | case 1: return 0; |
| 42 | case 7: { |
| 43 | ret = 12; |
| 44 | break; |
| 45 | } |
| 46 | default: return 0; |
| 47 | } |
| 48 | switch (x) { |
| 49 | case 1: return 0; |
| 50 | case 8: return 0; |
| 51 | default: ret = (ret + 11)|0; |
| 52 | } |
| 53 | return ret|0; |
| 54 | } |
| 55 | |
| 56 | return {caller:caller}; |
| 57 | } |
| 58 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 59 | assertEquals(23, wasm.caller()); |
| 60 | })(); |
| 61 | |
| 62 | (function TestSwitchFallthrough() { |
| 63 | function asmModule() { |
| 64 | "use asm" |
| 65 | |
| 66 | function caller() { |
| 67 | var x = 17; |
| 68 | var ret = 0; |
| 69 | switch (x) { |
| 70 | case 17: |
| 71 | case 14: ret = 39; |
| 72 | case 1: ret = (ret + 3)|0; |
| 73 | case 4: break; |
| 74 | default: ret = (ret + 1)|0; |
| 75 | } |
| 76 | return ret|0; |
| 77 | } |
| 78 | |
| 79 | return {caller:caller}; |
| 80 | } |
| 81 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 82 | assertEquals(42, wasm.caller()); |
| 83 | })(); |
| 84 | |
| 85 | (function TestNestedSwitch() { |
| 86 | function asmModule() { |
| 87 | "use asm" |
| 88 | |
| 89 | function caller() { |
| 90 | var x = 3; |
| 91 | var y = -13; |
| 92 | switch (x) { |
| 93 | case 1: return 0; |
| 94 | case 3: { |
| 95 | switch (y) { |
| 96 | case 2: return 0; |
| 97 | case -13: return 43; |
| 98 | default: return 0; |
| 99 | } |
| 100 | } |
| 101 | default: return 0; |
| 102 | } |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | return {caller:caller}; |
| 107 | } |
| 108 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 109 | assertEquals(43, wasm.caller()); |
| 110 | })(); |
| 111 | |
| 112 | (function TestSwitchWithDefaultOnly() { |
| 113 | function asmModule() { |
| 114 | "use asm"; |
| 115 | function main(x) { |
| 116 | x = x|0; |
| 117 | switch(x|0) { |
| 118 | default: return -10; |
| 119 | } |
| 120 | return 0; |
| 121 | } |
| 122 | return { |
| 123 | main: main, |
| 124 | }; |
| 125 | } |
| 126 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 127 | assertEquals(-10, wasm.main(2)); |
| 128 | assertEquals(-10, wasm.main(54)); |
| 129 | })(); |
| 130 | |
| 131 | (function TestEmptySwitch() { |
| 132 | function asmModule() { |
| 133 | "use asm"; |
| 134 | function main(x) { |
| 135 | x = x|0; |
| 136 | switch(x|0) { |
| 137 | } |
| 138 | return 73; |
| 139 | } |
| 140 | return { |
| 141 | main: main, |
| 142 | }; |
| 143 | } |
| 144 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 145 | assertEquals(73, wasm.main(7)); |
| 146 | })(); |
| 147 | |
| 148 | (function TestSwitchWithBrTable() { |
| 149 | function asmModule() { |
| 150 | "use asm"; |
| 151 | function main(x) { |
| 152 | x = x|0; |
| 153 | switch(x|0) { |
| 154 | case 14: return 23; |
| 155 | case 12: return 25; |
| 156 | case 15: return 29; |
| 157 | case 19: return 34; |
| 158 | case 18: return 17; |
| 159 | case 16: return 16; |
| 160 | default: return -1; |
| 161 | } |
| 162 | return 0; |
| 163 | } |
| 164 | return { |
| 165 | main: main, |
| 166 | }; |
| 167 | } |
| 168 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 169 | assertEquals(25, wasm.main(12)); |
| 170 | assertEquals(23, wasm.main(14)); |
| 171 | assertEquals(29, wasm.main(15)); |
| 172 | assertEquals(16, wasm.main(16)); |
| 173 | assertEquals(17, wasm.main(18)); |
| 174 | assertEquals(34, wasm.main(19)); |
| 175 | assertEquals(-1, wasm.main(-1)); |
| 176 | })(); |
| 177 | |
| 178 | (function TestSwitchWithBalancedTree() { |
| 179 | function asmModule() { |
| 180 | "use asm"; |
| 181 | function main(x) { |
| 182 | x = x|0; |
| 183 | switch(x|0) { |
| 184 | case 5: return 52; |
| 185 | case 1: return 11; |
| 186 | case 6: return 63; |
| 187 | case 9: return 19; |
| 188 | case -4: return -4; |
| 189 | } |
| 190 | return 0; |
| 191 | } |
| 192 | return { |
| 193 | main: main, |
| 194 | }; |
| 195 | } |
| 196 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 197 | assertEquals(-4, wasm.main(-4)); |
| 198 | assertEquals(11, wasm.main(1)); |
| 199 | assertEquals(52, wasm.main(5)); |
| 200 | assertEquals(63, wasm.main(6)); |
| 201 | assertEquals(19, wasm.main(9)); |
| 202 | assertEquals(0, wasm.main(11)); |
| 203 | })(); |
| 204 | |
| 205 | (function TestSwitchHybrid() { |
| 206 | function asmModule() { |
| 207 | "use asm"; |
| 208 | function main(x) { |
| 209 | x = x|0; |
| 210 | switch(x|0) { |
| 211 | case 1: return -4; |
| 212 | case 2: return 23; |
| 213 | case 3: return 32; |
| 214 | case 4: return 14; |
| 215 | case 7: return 17; |
| 216 | case 10: return 10; |
| 217 | case 11: return 121; |
| 218 | case 12: return 112; |
| 219 | case 13: return 31; |
| 220 | case 16: return 16; |
| 221 | default: return -1; |
| 222 | } |
| 223 | return 0; |
| 224 | } |
| 225 | return { |
| 226 | main: main, |
| 227 | }; |
| 228 | } |
| 229 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 230 | assertEquals(-4, wasm.main(1)); |
| 231 | assertEquals(23, wasm.main(2)); |
| 232 | assertEquals(32, wasm.main(3)); |
| 233 | assertEquals(14, wasm.main(4)); |
| 234 | assertEquals(17, wasm.main(7)); |
| 235 | assertEquals(10, wasm.main(10)); |
| 236 | assertEquals(121, wasm.main(11)); |
| 237 | assertEquals(112, wasm.main(12)); |
| 238 | assertEquals(31, wasm.main(13)); |
| 239 | assertEquals(16, wasm.main(16)); |
| 240 | assertEquals(-1, wasm.main(20)); |
| 241 | })(); |
| 242 | |
| 243 | (function TestSwitchFallthroughWithBrTable() { |
| 244 | function asmModule() { |
| 245 | "use asm"; |
| 246 | function main(x) { |
| 247 | x = x|0; |
| 248 | var ret = 0; |
| 249 | switch(x|0) { |
| 250 | case 1: { |
| 251 | ret = 21; |
| 252 | break; |
| 253 | } |
| 254 | case 2: { |
| 255 | ret = 12; |
| 256 | break; |
| 257 | } |
| 258 | case 3: { |
| 259 | ret = 43; |
| 260 | } |
| 261 | case 4: { |
| 262 | ret = 54; |
| 263 | break; |
| 264 | } |
| 265 | default: { |
| 266 | ret = 10; |
| 267 | break; |
| 268 | } |
| 269 | } |
| 270 | return ret|0; |
| 271 | } |
| 272 | return { |
| 273 | main: main, |
| 274 | }; |
| 275 | } |
| 276 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 277 | assertEquals(12, wasm.main(2)); |
| 278 | assertEquals(10, wasm.main(10)); |
| 279 | assertEquals(54, wasm.main(3)); |
| 280 | })(); |
| 281 | |
| 282 | (function TestSwitchFallthroughHybrid() { |
| 283 | function asmModule() { |
| 284 | "use asm"; |
| 285 | function main(x) { |
| 286 | x = x|0; |
| 287 | var ret = 0; |
| 288 | switch(x|0) { |
| 289 | case 1: { |
| 290 | ret = 1; |
| 291 | break; |
| 292 | } |
| 293 | case 2: { |
| 294 | ret = 2; |
| 295 | break; |
| 296 | } |
| 297 | case 3: { |
| 298 | ret = 3; |
| 299 | break; |
| 300 | } |
| 301 | case 4: { |
| 302 | ret = 4; |
| 303 | } |
| 304 | case 7: { |
| 305 | ret = 7; |
| 306 | break; |
| 307 | } |
| 308 | case 10: { |
| 309 | ret = 10; |
| 310 | } |
| 311 | case 16: { |
| 312 | ret = 16; |
| 313 | break; |
| 314 | } |
| 315 | case 17: { |
| 316 | ret = 17; |
| 317 | break; |
| 318 | } |
| 319 | case 18: { |
| 320 | ret = 18; |
| 321 | break; |
| 322 | } |
| 323 | case 19: { |
| 324 | ret = 19; |
| 325 | } |
| 326 | default: { |
| 327 | ret = -1; |
| 328 | break; |
| 329 | } |
| 330 | } |
| 331 | return ret|0; |
| 332 | } |
| 333 | return { |
| 334 | main: main, |
| 335 | }; |
| 336 | } |
| 337 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 338 | assertEquals(7, wasm.main(4)); |
| 339 | assertEquals(16, wasm.main(10)); |
| 340 | assertEquals(-1, wasm.main(19)); |
| 341 | assertEquals(-1, wasm.main(23)); |
| 342 | })(); |
| 343 | |
| 344 | (function TestSwitchHybridWithNoDefault() { |
| 345 | function asmModule() { |
| 346 | "use asm"; |
| 347 | function main(x) { |
| 348 | x = x|0; |
| 349 | var ret = 19; |
| 350 | switch(x|0) { |
| 351 | case 1: { |
| 352 | ret = 1; |
| 353 | break; |
| 354 | } |
| 355 | case 2: { |
| 356 | ret = 2; |
| 357 | break; |
| 358 | } |
| 359 | case 3: { |
| 360 | ret = 3; |
| 361 | break; |
| 362 | } |
| 363 | case 4: { |
| 364 | ret = 4; |
| 365 | break; |
| 366 | } |
| 367 | case 7: { |
| 368 | ret = 7; |
| 369 | break; |
| 370 | } |
| 371 | } |
| 372 | return ret|0; |
| 373 | } |
| 374 | return { |
| 375 | main: main, |
| 376 | }; |
| 377 | } |
| 378 | var wasm = Wasm.instantiateModuleFromAsm(asmModule.toString()); |
| 379 | assertEquals(2, wasm.main(2)); |
| 380 | assertEquals(7, wasm.main(7)); |
| 381 | assertEquals(19, wasm.main(-1)); |
| 382 | })(); |
| 383 | |
| 384 | (function TestLargeSwitch() { |
| 385 | function LargeSwitchGenerator(begin, end, gap, handle_case) { |
| 386 | var str = "function asmModule() {\ |
| 387 | \"use asm\";\ |
| 388 | function main(x) {\ |
| 389 | x = x|0;\ |
| 390 | switch(x|0) {"; |
| 391 | for (var i = begin; i <= end; i = i + gap) { |
| 392 | str = str.concat("case ", i.toString(), ": ", handle_case(i)); |
| 393 | } |
| 394 | str = str.concat("default: return -1;\ |
| 395 | }\ |
| 396 | return -2;\ |
| 397 | }\ |
| 398 | return {main: main}; }"); |
| 399 | |
| 400 | var wasm = Wasm.instantiateModuleFromAsm(str); |
| 401 | return wasm; |
| 402 | } |
| 403 | |
| 404 | var handle_case = function(k) { |
| 405 | return "return ".concat(k, ";"); |
| 406 | } |
| 407 | var wasm = LargeSwitchGenerator(0, 513, 1, handle_case); |
| 408 | for (var i = 0; i <= 513; i++) { |
| 409 | assertEquals(i, wasm.main(i)); |
| 410 | } |
| 411 | assertEquals(-1, wasm.main(-1)); |
| 412 | |
| 413 | wasm = LargeSwitchGenerator(0, 1024, 3, handle_case); |
| 414 | for (var i = 0; i <= 1024; i = i + 3) { |
| 415 | assertEquals(i, wasm.main(i)); |
| 416 | } |
| 417 | assertEquals(-1, wasm.main(-1)); |
| 418 | |
| 419 | wasm = LargeSwitchGenerator(-2147483648, -2147483000, 1, handle_case); |
| 420 | for (var i = -2147483648; i <= -2147483000; i++) { |
| 421 | assertEquals(i, wasm.main(i)); |
| 422 | } |
| 423 | assertEquals(-1, wasm.main(-1)); |
| 424 | assertEquals(-1, wasm.main(214748647)); |
| 425 | |
| 426 | wasm = LargeSwitchGenerator(-2147483648, -2147483000, 3, handle_case); |
| 427 | for (var i = -2147483648; i <= -2147483000; i = i + 3) { |
| 428 | assertEquals(i, wasm.main(i)); |
| 429 | } |
| 430 | assertEquals(-1, wasm.main(-1)); |
| 431 | assertEquals(-1, wasm.main(214748647)); |
| 432 | |
| 433 | wasm = LargeSwitchGenerator(2147483000, 2147483647, 1, handle_case); |
| 434 | for (var i = 2147483000; i <= 2147483647; i++) { |
| 435 | assertEquals(i, wasm.main(i)); |
| 436 | } |
| 437 | assertEquals(-1, wasm.main(-1)); |
| 438 | assertEquals(-1, wasm.main(-214748647)); |
| 439 | |
| 440 | wasm = LargeSwitchGenerator(2147483000, 2147483647, 4, handle_case); |
| 441 | for (var i = 2147483000; i <= 2147483647; i = i + 4) { |
| 442 | assertEquals(i, wasm.main(i)); |
| 443 | } |
| 444 | assertEquals(-1, wasm.main(-1)); |
| 445 | assertEquals(-1, wasm.main(-214748647)); |
| 446 | |
| 447 | handle_case = function(k) { |
| 448 | if (k != 7) return "return ".concat(k, ";"); |
| 449 | else return "break;"; |
| 450 | } |
| 451 | wasm = LargeSwitchGenerator(0, 1499, 7, handle_case); |
| 452 | for (var i = 0; i <= 1499; i = i + 7) { |
| 453 | if (i == 7) assertEquals(-2, wasm.main(i)); |
| 454 | else assertEquals(i, wasm.main(i)); |
| 455 | } |
| 456 | assertEquals(-1, wasm.main(-1)); |
| 457 | |
| 458 | handle_case = function(k) { |
| 459 | if (k != 56) return "break;"; |
| 460 | else return "return 23;"; |
| 461 | } |
| 462 | wasm = LargeSwitchGenerator(0, 638, 2, handle_case); |
| 463 | for (var i = 0; i <= 638; i = i + 2) { |
| 464 | if (i == 56) assertEquals(23, wasm.main(i)); |
| 465 | else assertEquals(-2, wasm.main(i)); |
| 466 | } |
| 467 | assertEquals(-1, wasm.main(-1)); |
| 468 | })(); |