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| (Empty) | |
| 1 ; Test switch instructions. |
| 2 |
| 3 ; RUN: llvm-as < %s | pnacl-freeze -allow-local-symbol-tables \ |
| 4 ; RUN: | %llvm2ice -notranslate -verbose=inst -build-on-read \ |
| 5 ; RUN: -allow-pnacl-reader-error-recovery \ |
| 6 ; RUN: -allow-local-symbol-tables \ |
| 7 ; RUN: | FileCheck %s |
| 8 |
| 9 define void @testDefaultSwitch(i32 %a) { |
| 10 entry: |
| 11 switch i32 %a, label %exit [ |
| 12 ] |
| 13 exit: |
| 14 ret void |
| 15 } |
| 16 |
| 17 ; CHECK: define void @testDefaultSwitch(i32 %a) { |
| 18 ; CHECK-NEXT: entry: |
| 19 ; CHECK-NEXT: switch i32 %a, label %exit [ |
| 20 ; CHECK-NEXT: ] |
| 21 ; CHECK-NEXT: exit: |
| 22 ; CHECK-NEXT: ret void |
| 23 ; CHECK-NEXT: } |
| 24 |
| 25 define i32 @testSwitch(i32 %a) { |
| 26 entry: |
| 27 switch i32 %a, label %sw.default [ |
| 28 i32 1, label %sw.epilog |
| 29 i32 2, label %sw.epilog |
| 30 i32 3, label %sw.epilog |
| 31 i32 7, label %sw.bb1 |
| 32 i32 8, label %sw.bb1 |
| 33 i32 15, label %sw.bb2 |
| 34 i32 14, label %sw.bb2 |
| 35 ] |
| 36 |
| 37 sw.default: ; preds = %entry |
| 38 %add = add i32 %a, 27 |
| 39 br label %sw.epilog |
| 40 |
| 41 sw.bb1: ; preds = %entry, %entry |
| 42 %phitmp = sub i32 21, %a |
| 43 br label %sw.bb2 |
| 44 |
| 45 sw.bb2: ; preds = %sw.bb1, %entry, %en
try |
| 46 %result.0 = phi i32 [ 1, %entry ], [ 1, %entry ], [ %phitmp, %sw.bb1 ] |
| 47 br label %sw.epilog |
| 48 |
| 49 sw.epilog: ; preds = %sw.bb2, %sw.default
, %entry, %entry, %entry |
| 50 %result.1 = phi i32 [ %add, %sw.default ], [ %result.0, %sw.bb2 ], [ 17, %entr
y ], [ 17, %entry ], [ 17, %entry ] |
| 51 ret i32 %result.1 |
| 52 } |
| 53 |
| 54 ; CHECK-NEXT: define i32 @testSwitch(i32 %a) { |
| 55 ; CHECK-NEXT: entry: |
| 56 ; CHECK-NEXT: switch i32 %a, label %sw.default [ |
| 57 ; CHECK-NEXT: i32 1, label %sw.epilog |
| 58 ; CHECK-NEXT: i32 2, label %sw.epilog |
| 59 ; CHECK-NEXT: i32 3, label %sw.epilog |
| 60 ; CHECK-NEXT: i32 7, label %sw.bb1 |
| 61 ; CHECK-NEXT: i32 8, label %sw.bb1 |
| 62 ; CHECK-NEXT: i32 15, label %sw.bb2 |
| 63 ; CHECK-NEXT: i32 14, label %sw.bb2 |
| 64 ; CHECK-NEXT: ] |
| 65 ; CHECK-NEXT: sw.default: |
| 66 ; CHECK-NEXT: %add = add i32 %a, 27 |
| 67 ; CHECK-NEXT: br label %sw.epilog |
| 68 ; CHECK-NEXT: sw.bb1: |
| 69 ; CHECK-NEXT: %phitmp = sub i32 21, %a |
| 70 ; CHECK-NEXT: br label %sw.bb2 |
| 71 ; CHECK-NEXT: sw.bb2: |
| 72 ; CHECK-NEXT: %result.0 = phi i32 [ 1, %entry ], [ 1, %entry ], [ %phitmp, %sw
.bb1 ] |
| 73 ; CHECK-NEXT: br label %sw.epilog |
| 74 ; CHECK-NEXT: sw.epilog: |
| 75 ; CHECK-NEXT: %result.1 = phi i32 [ %add, %sw.default ], [ %result.0, %sw.bb2
], [ 17, %entry ], [ 17, %entry ], [ 17, %entry ] |
| 76 ; CHECK-NEXT: ret i32 %result.1 |
| 77 ; CHECK-NEXT: } |
| 78 |
| 79 define void @testSignedI32Values(i32 %a) { |
| 80 entry: |
| 81 switch i32 %a, label %labelDefault [ |
| 82 i32 0, label %label0 |
| 83 i32 -1, label %labelM1 |
| 84 i32 3, label %labelOther |
| 85 i32 -3, label %labelOther |
| 86 i32 -2147483648, label %labelMin ; min signed i32 |
| 87 i32 2147483647, label %labelMax ; max signed i32 |
| 88 ] |
| 89 labelDefault: |
| 90 ret void |
| 91 label0: |
| 92 ret void |
| 93 labelM1: |
| 94 ret void |
| 95 labelMin: |
| 96 ret void |
| 97 labelMax: |
| 98 ret void |
| 99 labelOther: |
| 100 ret void |
| 101 } |
| 102 |
| 103 ; CHECK-NEXT: define void @testSignedI32Values(i32 %a) { |
| 104 ; CHECK-NEXT: entry: |
| 105 ; CHECK-NEXT: switch i32 %a, label %labelDefault [ |
| 106 ; CHECK-NEXT: i32 0, label %label0 |
| 107 ; CHECK-NEXT: i32 -1, label %labelM1 |
| 108 ; CHECK-NEXT: i32 3, label %labelOther |
| 109 ; CHECK-NEXT: i32 -3, label %labelOther |
| 110 ; CHECK-NEXT: i32 -2147483648, label %labelMin |
| 111 ; CHECK-NEXT: i32 2147483647, label %labelMax |
| 112 ; CHECK-NEXT: ] |
| 113 ; CHECK-NEXT: labelDefault: |
| 114 ; CHECK-NEXT: ret void |
| 115 ; CHECK-NEXT: label0: |
| 116 ; CHECK-NEXT: ret void |
| 117 ; CHECK-NEXT: labelM1: |
| 118 ; CHECK-NEXT: ret void |
| 119 ; CHECK-NEXT: labelMin: |
| 120 ; CHECK-NEXT: ret void |
| 121 ; CHECK-NEXT: labelMax: |
| 122 ; CHECK-NEXT: ret void |
| 123 ; CHECK-NEXT: labelOther: |
| 124 ; CHECK-NEXT: ret void |
| 125 ; CHECK-NEXT: } |
| 126 |
| 127 ; Test values that cross signed i32 size boundaries. |
| 128 define void @testSignedI32Boundary(i32 %a) { |
| 129 entry: |
| 130 switch i32 %a, label %exit [ |
| 131 i32 -2147483649, label %exit ; min signed i32 - 1 |
| 132 i32 2147483648, label %exit ; max signed i32 + 1 |
| 133 ] |
| 134 exit: |
| 135 ret void |
| 136 } |
| 137 |
| 138 ; CHECK-NEXT: define void @testSignedI32Boundary(i32 %a) { |
| 139 ; CHECK-NEXT: entry: |
| 140 ; CHECK-NEXT: switch i32 %a, label %exit [ |
| 141 ; CHECK-NEXT: i32 2147483647, label %exit |
| 142 ; CHECK-NEXT: i32 -2147483648, label %exit |
| 143 ; CHECK-NEXT: ] |
| 144 ; CHECK-NEXT: exit: |
| 145 ; CHECK-NEXT: ret void |
| 146 ; CHECK-NEXT: } |
| 147 |
| 148 define void @testUnsignedI32Values(i32 %a) { |
| 149 entry: |
| 150 switch i32 %a, label %exit [ |
| 151 i32 0, label %exit |
| 152 i32 2147483647, label %exit ; max signed i32 |
| 153 i32 4294967295, label %exit ; max unsigned i32 |
| 154 ] |
| 155 exit: |
| 156 ret void |
| 157 } |
| 158 |
| 159 ; CHECK-NEXT: define void @testUnsignedI32Values(i32 %a) { |
| 160 ; CHECK-NEXT: entry: |
| 161 ; CHECK-NEXT: switch i32 %a, label %exit [ |
| 162 ; CHECK-NEXT: i32 0, label %exit |
| 163 ; CHECK-NEXT: i32 2147483647, label %exit |
| 164 ; ; Note that -1 is signed version of 4294967295 |
| 165 ; CHECK-NEXT: i32 -1, label %exit |
| 166 ; CHECK-NEXT: ] |
| 167 ; CHECK-NEXT: exit: |
| 168 ; CHECK-NEXT: ret void |
| 169 ; CHECK-NEXT: } |
| 170 |
| 171 ; Test values that cross unsigned i32 boundaries. |
| 172 define void @testUnsignedI32Boundary(i32 %a) { |
| 173 entry: |
| 174 switch i32 %a, label %exit [ |
| 175 i32 4294967296, label %exit ; max unsigned i32 + 1 |
| 176 ] |
| 177 exit: |
| 178 ret void |
| 179 } |
| 180 |
| 181 ; CHECK-NEXT: define void @testUnsignedI32Boundary(i32 %a) { |
| 182 ; CHECK-NEXT: entry: |
| 183 ; CHECK-NEXT: switch i32 %a, label %exit [ |
| 184 ; CHECK-NEXT: i32 0, label %exit |
| 185 ; CHECK-NEXT: ] |
| 186 ; CHECK-NEXT: exit: |
| 187 ; CHECK-NEXT: ret void |
| 188 ; CHECK-NEXT: } |
| 189 |
| 190 define void @testSignedI64Values(i64 %a) { |
| 191 entry: |
| 192 switch i64 %a, label %exit [ |
| 193 i64 0, label %exit |
| 194 i64 -9223372036854775808, label %exit ; min signed i64 |
| 195 i64 9223372036854775807, label %exit ; max signed i64 |
| 196 ] |
| 197 exit: |
| 198 ret void |
| 199 } |
| 200 |
| 201 ; CHECK-NEXT: define void @testSignedI64Values(i64 %a) { |
| 202 ; CHECK-NEXT: entry: |
| 203 ; CHECK-NEXT: switch i64 %a, label %exit [ |
| 204 ; CHECK-NEXT: i64 0, label %exit |
| 205 ; CHECK-NEXT: i64 -9223372036854775808, label %exit |
| 206 ; CHECK-NEXT: i64 9223372036854775807, label %exit |
| 207 ; CHECK-NEXT: ] |
| 208 ; CHECK-NEXT: exit: |
| 209 ; CHECK-NEXT: ret void |
| 210 ; CHECK-NEXT: } |
| 211 |
| 212 ; Test values that cross signed i64 size boundaries. |
| 213 define void @testSignedI64Boundary(i64 %a) { |
| 214 entry: |
| 215 switch i64 %a, label %exit [ |
| 216 i64 0, label %exit |
| 217 i64 -9223372036854775809, label %exit ; min signed i64 - 1 |
| 218 i64 9223372036854775808, label %exit ; max signed i64 + 1 |
| 219 ] |
| 220 exit: |
| 221 ret void |
| 222 } |
| 223 |
| 224 ; CHECK-NEXT: define void @testSignedI64Boundary(i64 %a) { |
| 225 ; CHECK-NEXT: entry: |
| 226 ; CHECK-NEXT: switch i64 %a, label %exit [ |
| 227 ; CHECK-NEXT: i64 0, label %exit |
| 228 ; CHECK-NEXT: i64 9223372036854775807, label %exit |
| 229 ; CHECK-NEXT: i64 -9223372036854775808, label %exit |
| 230 ; CHECK-NEXT: ] |
| 231 ; CHECK-NEXT: exit: |
| 232 ; CHECK-NEXT: ret void |
| 233 ; CHECK-NEXT: } |
| 234 |
| 235 define void @testUnsignedI64Values(i64 %a) { |
| 236 entry: |
| 237 switch i64 %a, label %exit [ |
| 238 i64 0, label %exit |
| 239 i64 9223372036854775807, label %exit ; max signed i64 |
| 240 i64 18446744073709551615, label %exit ; max unsigned i64 |
| 241 ] |
| 242 exit: |
| 243 ret void |
| 244 } |
| 245 |
| 246 ; CHECK-NEXT: define void @testUnsignedI64Values(i64 %a) { |
| 247 ; CHECK-NEXT: entry: |
| 248 ; CHECK-NEXT: switch i64 %a, label %exit [ |
| 249 ; CHECK-NEXT: i64 0, label %exit |
| 250 ; CHECK-NEXT: i64 9223372036854775807, label %exit |
| 251 ; CHECK-NEXT: i64 -1, label %exit |
| 252 ; CHECK-NEXT: ] |
| 253 ; CHECK-NEXT: exit: |
| 254 ; CHECK-NEXT: ret void |
| 255 ; CHECK-NEXT: } |
| 256 |
| 257 ; Test values that cross unsigned i64 size boundaries. |
| 258 define void @testUnsignedI64Boundary(i64 %a) { |
| 259 entry: |
| 260 switch i64 %a, label %exit [ |
| 261 i64 18446744073709551616, label %exit ; max unsigned i64 + 1 |
| 262 ] |
| 263 exit: |
| 264 ret void |
| 265 } |
| 266 |
| 267 ; CHECK-NEXT: define void @testUnsignedI64Boundary(i64 %a) { |
| 268 ; CHECK-NEXT: entry: |
| 269 ; CHECK-NEXT: switch i64 %a, label %exit [ |
| 270 ; CHECK-NEXT: i64 0, label %exit |
| 271 ; CHECK-NEXT: ] |
| 272 ; CHECK-NEXT: exit: |
| 273 ; CHECK-NEXT: ret void |
| 274 ; CHECK-NEXT: } |
| 275 |
| 276 define void @testSignedI16Values(i32 %p) { |
| 277 entry: |
| 278 %a = trunc i32 %p to i16 |
| 279 switch i16 %a, label %exit [ |
| 280 i16 0, label %exit |
| 281 i16 -1, label %exit |
| 282 i16 3, label %exit |
| 283 i16 -3, label %exit |
| 284 i16 -32768, label %exit ; min signed i16 |
| 285 i16 32767, label %exit ; max unsigned i16 |
| 286 ] |
| 287 exit: |
| 288 ret void |
| 289 } |
| 290 |
| 291 ; CHECK-NEXT: define void @testSignedI16Values(i32 %p) { |
| 292 ; CHECK-NEXT: entry: |
| 293 ; CHECK-NEXT: %a = trunc i32 %p to i16 |
| 294 ; CHECK-NEXT: switch i16 %a, label %exit [ |
| 295 ; CHECK-NEXT: i16 0, label %exit |
| 296 ; CHECK-NEXT: i16 -1, label %exit |
| 297 ; CHECK-NEXT: i16 3, label %exit |
| 298 ; CHECK-NEXT: i16 -3, label %exit |
| 299 ; CHECK-NEXT: i16 -32768, label %exit |
| 300 ; CHECK-NEXT: i16 32767, label %exit |
| 301 ; CHECK-NEXT: ] |
| 302 ; CHECK-NEXT: exit: |
| 303 ; CHECK-NEXT: ret void |
| 304 ; CHECK-NEXT: } |
| 305 |
| 306 ; Test values that cross signed i16 size boundaries. |
| 307 define void @testSignedI16Boundary(i32 %p) { |
| 308 entry: |
| 309 %a = trunc i32 %p to i16 |
| 310 switch i16 %a, label %exit [ |
| 311 i16 -32769, label %exit ; min signed i16 - 1 |
| 312 i16 32768, label %exit ; max unsigned i16 + 1 |
| 313 ] |
| 314 exit: |
| 315 ret void |
| 316 } |
| 317 |
| 318 ; CHECK-NEXT: define void @testSignedI16Boundary(i32 %p) { |
| 319 ; CHECK-NEXT: entry: |
| 320 ; CHECK-NEXT: %a = trunc i32 %p to i16 |
| 321 ; CHECK-NEXT: switch i16 %a, label %exit [ |
| 322 ; CHECK-NEXT: i16 32767, label %exit |
| 323 ; CHECK-NEXT: i16 -32768, label %exit |
| 324 ; CHECK-NEXT: ] |
| 325 ; CHECK-NEXT: exit: |
| 326 ; CHECK-NEXT: ret void |
| 327 ; CHECK-NEXT: } |
| 328 |
| 329 define void @testUnsignedI16Values(i32 %p) { |
| 330 entry: |
| 331 %a = trunc i32 %p to i16 |
| 332 switch i16 %a, label %exit [ |
| 333 i16 0, label %exit |
| 334 i16 32767, label %exit ; max signed i16 |
| 335 i16 65535, label %exit ; max unsigned i16 |
| 336 ] |
| 337 exit: |
| 338 ret void |
| 339 } |
| 340 |
| 341 ; CHECK-NEXT: define void @testUnsignedI16Values(i32 %p) { |
| 342 ; CHECK-NEXT: entry: |
| 343 ; CHECK-NEXT: %a = trunc i32 %p to i16 |
| 344 ; CHECK-NEXT: switch i16 %a, label %exit [ |
| 345 ; CHECK-NEXT: i16 0, label %exit |
| 346 ; CHECK-NEXT: i16 32767, label %exit |
| 347 ; ; Note that -1 is signed version of 65535 |
| 348 ; CHECK-NEXT: i16 -1, label %exit |
| 349 ; CHECK-NEXT: ] |
| 350 ; CHECK-NEXT: exit: |
| 351 ; CHECK-NEXT: ret void |
| 352 ; CHECK-NEXT: } |
| 353 |
| 354 ; Test values that cross unsigned i16 size boundaries. |
| 355 define void @testUnsignedI16Boundary(i32 %p) { |
| 356 entry: |
| 357 %a = trunc i32 %p to i16 |
| 358 switch i16 %a, label %exit [ |
| 359 i16 65536, label %exit ; max unsigned i16 + 1 |
| 360 ] |
| 361 exit: |
| 362 ret void |
| 363 } |
| 364 |
| 365 ; CHECK-NEXT: define void @testUnsignedI16Boundary(i32 %p) { |
| 366 ; CHECK-NEXT: entry: |
| 367 ; CHECK-NEXT: %a = trunc i32 %p to i16 |
| 368 ; CHECK-NEXT: switch i16 %a, label %exit [ |
| 369 ; CHECK-NEXT: i16 0, label %exit |
| 370 ; CHECK-NEXT: ] |
| 371 ; CHECK-NEXT: exit: |
| 372 ; CHECK-NEXT: ret void |
| 373 ; CHECK-NEXT: } |
| 374 |
| 375 define void @testSignedI8Values(i32 %p) { |
| 376 entry: |
| 377 %a = trunc i32 %p to i8 |
| 378 switch i8 %a, label %exit [ |
| 379 i8 0, label %exit |
| 380 i8 -1, label %exit |
| 381 i8 3, label %exit |
| 382 i8 -3, label %exit |
| 383 i8 -128, label %exit ; min signed i8 |
| 384 i8 127, label %exit ; max unsigned i8 |
| 385 ] |
| 386 exit: |
| 387 ret void |
| 388 } |
| 389 |
| 390 ; CHECK-NEXT: define void @testSignedI8Values(i32 %p) { |
| 391 ; CHECK-NEXT: entry: |
| 392 ; CHECK-NEXT: %a = trunc i32 %p to i8 |
| 393 ; CHECK-NEXT: switch i8 %a, label %exit [ |
| 394 ; CHECK-NEXT: i8 0, label %exit |
| 395 ; CHECK-NEXT: i8 -1, label %exit |
| 396 ; CHECK-NEXT: i8 3, label %exit |
| 397 ; CHECK-NEXT: i8 -3, label %exit |
| 398 ; CHECK-NEXT: i8 -128, label %exit |
| 399 ; CHECK-NEXT: i8 127, label %exit |
| 400 ; CHECK-NEXT: ] |
| 401 ; CHECK-NEXT: exit: |
| 402 ; CHECK-NEXT: ret void |
| 403 ; CHECK-NEXT: } |
| 404 |
| 405 ; Test values that cross signed i8 size boundaries. |
| 406 define void @testSignedI8Boundary(i32 %p) { |
| 407 entry: |
| 408 %a = trunc i32 %p to i8 |
| 409 switch i8 %a, label %exit [ |
| 410 i8 -129, label %exit ; min signed i8 - 1 |
| 411 i8 128, label %exit ; max unsigned i8 + 1 |
| 412 ] |
| 413 exit: |
| 414 ret void |
| 415 } |
| 416 |
| 417 ; CHECK-NEXT: define void @testSignedI8Boundary(i32 %p) { |
| 418 ; CHECK-NEXT: entry: |
| 419 ; CHECK-NEXT: %a = trunc i32 %p to i8 |
| 420 ; CHECK-NEXT: switch i8 %a, label %exit [ |
| 421 ; CHECK-NEXT: i8 127, label %exit |
| 422 ; CHECK-NEXT: i8 -128, label %exit |
| 423 ; CHECK-NEXT: ] |
| 424 ; CHECK-NEXT: exit: |
| 425 ; CHECK-NEXT: ret void |
| 426 ; CHECK-NEXT: } |
| 427 |
| 428 |
| 429 define void @testUnsignedI8Values(i32 %p) { |
| 430 entry: |
| 431 %a = trunc i32 %p to i8 |
| 432 switch i8 %a, label %exit [ |
| 433 i8 0, label %exit |
| 434 i8 127, label %exit ; max signed i8 |
| 435 i8 255, label %exit ; max unsigned i8 |
| 436 ] |
| 437 exit: |
| 438 ret void |
| 439 } |
| 440 |
| 441 ; CHECK-NEXT: define void @testUnsignedI8Values(i32 %p) { |
| 442 ; CHECK-NEXT: entry: |
| 443 ; CHECK-NEXT: %a = trunc i32 %p to i8 |
| 444 ; CHECK-NEXT: switch i8 %a, label %exit [ |
| 445 ; CHECK-NEXT: i8 0, label %exit |
| 446 ; CHECK-NEXT: i8 127, label %exit |
| 447 ; ; Note that -1 is signed version of 255 |
| 448 ; CHECK-NEXT: i8 -1, label %exit |
| 449 ; CHECK-NEXT: ] |
| 450 ; CHECK-NEXT: exit: |
| 451 ; CHECK-NEXT: ret void |
| 452 ; CHECK-NEXT: } |
| 453 |
| 454 ; Test values that cross unsigned i8 size boundaries. |
| 455 define void @testUnsignedI8Boundary(i32 %p) { |
| 456 entry: |
| 457 %a = trunc i32 %p to i8 |
| 458 switch i8 %a, label %exit [ |
| 459 i8 256, label %exit ; max unsigned i8 |
| 460 ] |
| 461 exit: |
| 462 ret void |
| 463 } |
| 464 |
| 465 ; CHECK-NEXT: define void @testUnsignedI8Boundary(i32 %p) { |
| 466 ; CHECK-NEXT: entry: |
| 467 ; CHECK-NEXT: %a = trunc i32 %p to i8 |
| 468 ; CHECK-NEXT: switch i8 %a, label %exit [ |
| 469 ; CHECK-NEXT: i8 0, label %exit |
| 470 ; CHECK-NEXT: ] |
| 471 ; CHECK-NEXT: exit: |
| 472 ; CHECK-NEXT: ret void |
| 473 ; CHECK-NEXT: } |
| 474 |
| 475 define void @testI1Values(i32 %p) { |
| 476 entry: |
| 477 %a = trunc i32 %p to i1 |
| 478 switch i1 %a, label %exit [ |
| 479 i1 true, label %exit |
| 480 i1 false, label %exit |
| 481 ] |
| 482 exit: |
| 483 ret void |
| 484 } |
| 485 |
| 486 ; CHECK-NEXT: define void @testI1Values(i32 %p) { |
| 487 ; CHECK-NEXT: entry: |
| 488 ; CHECK-NEXT: %a = trunc i32 %p to i1 |
| 489 ; CHECK-NEXT: switch i1 %a, label %exit [ |
| 490 ; CHECK-NEXT: i1 -1, label %exit |
| 491 ; CHECK-NEXT: i1 0, label %exit |
| 492 ; CHECK-NEXT: ] |
| 493 ; CHECK-NEXT: exit: |
| 494 ; CHECK-NEXT: ret void |
| 495 ; CHECK-NEXT: } |
| 496 |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 576243002:
Add switch instruction to Subzero bitcode reader. (Closed)
Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master