break-vmem-soft-clauses.mir 24.8 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
# RUN: llc -march=amdgcn -mcpu=carrizo -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,XNACK %s

# Make sure the default assumption is xnack enabled with no cpu
# RUN: llc -march=amdgcn  -verify-machineinstrs -mattr=+volcanic-islands -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,XNACK %s
# RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,NOXNACK %s
---
# Trivial clause at beginning of program
name: trivial_clause_load_flat4_x1

body: |
  bb.0:
    ; GCN-LABEL: name: trivial_clause_load_flat4_x1
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Trivial clause at beginning of program
name: trivial_clause_load_flat4_x2

body: |
  bb.0:
    ; GCN-LABEL: name: trivial_clause_load_flat4_x2
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr1 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr1 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Trivial clause at beginning of program
name: trivial_clause_load_flat4_x3

body: |
  bb.0:
    ; GCN-LABEL: name: trivial_clause_load_flat4_x3
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr3_vgpr4, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr1 = FLAT_LOAD_DWORD $vgpr5_vgpr6, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr7_vgpr8, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr3_vgpr4, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr1 = FLAT_LOAD_DWORD $vgpr5_vgpr6, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2 = FLAT_LOAD_DWORD $vgpr7_vgpr8, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Trivial clause at beginning of program
name: trivial_clause_load_flat4_x4

body: |
  bb.0:
    ; GCN-LABEL: name: trivial_clause_load_flat4_x4
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr1 = FLAT_LOAD_DWORD $vgpr6_vgpr7, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr8_vgpr9, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr3 = FLAT_LOAD_DWORD $vgpr10_vgpr11, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr1 = FLAT_LOAD_DWORD $vgpr6_vgpr7, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2 = FLAT_LOAD_DWORD $vgpr8_vgpr9, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr3 = FLAT_LOAD_DWORD $vgpr10_vgpr11, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Reuse of same input pointer is OK

name: trivial_clause_load_flat4_x2_sameptr
body: |
  bb.0:
    ; GCN-LABEL: name: trivial_clause_load_flat4_x2_sameptr
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr1 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr1 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# 32-bit load partially clobbers its own ptr reg
name: flat_load4_overwrite_ptr_lo

body: |
  bb.0:
    ; GCN-LABEL: name: flat_load4_overwrite_ptr_lo
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# 32-bit load partially clobbers its own ptr reg
name: flat_load4_overwrite_ptr_hi

body: |
  bb.0:
    ; GCN-LABEL: name: flat_load4_overwrite_ptr_hi
    ; GCN: $vgpr1 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr1 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# 64-bit load clobbers its own ptr reg
name: flat_load8_overwrite_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: flat_load8_overwrite_ptr
    ; GCN: $vgpr2_vgpr3 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr2_vgpr3 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# vmcnt has 4 bits, so maximum 16 outstanding loads. The waitcnt
# breaks the clause.


name: break_clause_at_max_clause_size_flat_load4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_at_max_clause_size_flat_load4
    ; GCN: $vgpr2 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr3 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr4 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr5 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr6 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr7 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr8 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr9 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr10 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr11 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr12 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr13 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr14 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr15 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr16 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr17 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $sgpr0 = S_MOV_B32 $sgpr0, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13, implicit $vgpr14, implicit $vgpr15, implicit $vgpr16, implicit $vgpr17, implicit $vgpr18
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr2 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr3 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr4 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr5 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    $vgpr6 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr7 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr8 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr9 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    $vgpr10 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr11 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr12 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr13 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    $vgpr14 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr15 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr16 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr17 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $sgpr0 = S_MOV_B32 $sgpr0, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13, implicit $vgpr14, implicit $vgpr15, implicit $vgpr16, implicit $vgpr17, implicit $vgpr18
    S_ENDPGM 0
...
---

name: break_clause_simple_load_flat4_lo_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_simple_load_flat4_lo_ptr
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---

name: break_clause_simple_load_flat4_hi_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_simple_load_flat4_hi_ptr
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr3 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr3 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---

name: break_clause_simple_load_flat8_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_simple_load_flat8_ptr
    ; GCN: $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2_vgpr3 = FLAT_LOAD_DWORDX2 $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2_vgpr3 = FLAT_LOAD_DWORDX2 $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---


name: break_clause_simple_load_flat16_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_simple_load_flat16_ptr
    ; GCN: $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2_vgpr3_vgpr4_vgpr5 = FLAT_LOAD_DWORDX4 $vgpr6_vgpr7, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0
    $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2_vgpr3_vgpr4_vgpr5 = FLAT_LOAD_DWORDX4 $vgpr6_vgpr7, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---

# The clause is broken by the waitcnt inserted at the end of the
# block, so no nop is needed.


name: break_clause_block_boundary_load_flat8_ptr

body: |
  ; GCN-LABEL: name: break_clause_block_boundary_load_flat8_ptr
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN:   $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
  ; GCN: bb.1:
  ; XNACK-NEXT:  S_NOP 0
  ; GCN-NEXT:   $vgpr2_vgpr3 = FLAT_LOAD_DWORDX2 $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
  ; GCN-NEXT:   S_ENDPGM 0

  bb.0:
    $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

  bb.1:
    $vgpr2_vgpr3 = FLAT_LOAD_DWORDX2 $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# The load clobbers the pointer of the store, so it needs to break.

name: break_clause_store_load_into_ptr_flat4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_store_load_into_ptr_flat4
    ; GCN: FLAT_STORE_DWORD $vgpr2_vgpr3, $vgpr0, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    FLAT_STORE_DWORD $vgpr2_vgpr3, $vgpr0, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# The load clobbers the data of the store, so it needs to break.
# FIXME: Would it be better to s_nop and wait later?

name: break_clause_store_load_into_data_flat4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_store_load_into_data_flat4
    ; GCN: FLAT_STORE_DWORD $vgpr2_vgpr3, $vgpr0, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr0 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    FLAT_STORE_DWORD $vgpr2_vgpr3, $vgpr0, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr0 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Regular VALU instruction breaks clause, no nop needed

name: valu_inst_breaks_clause

body: |
  bb.0:
    ; GCN-LABEL: name: valu_inst_breaks_clause
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr8 = V_MOV_B32_e32 0, implicit $exec
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr8 = V_MOV_B32_e32 0, implicit $exec
    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Regular SALU instruction breaks clause, no nop needed

name: salu_inst_breaks_clause

body: |
  bb.0:
    ; GCN-LABEL: name: salu_inst_breaks_clause
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $sgpr8 = S_MOV_B32 0
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $sgpr8 = S_MOV_B32 0
    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---

name: ds_inst_breaks_clause

body: |
  bb.0:
    ; GCN-LABEL: name: ds_inst_breaks_clause
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr8 = DS_READ_B32 $vgpr9, 0, 0, implicit $m0, implicit $exec
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr8 = DS_READ_B32 $vgpr9, 0, 0, implicit $m0, implicit $exec
    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---

name: smrd_inst_breaks_clause

body: |
  bb.0:
    ; GCN-LABEL: name: smrd_inst_breaks_clause
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $sgpr8 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0, 0
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $sgpr8 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0, 0
    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# FIXME: Should this be handled?
name: implicit_use_breaks_clause

body: |
  bb.0:
    ; GCN-LABEL: name: implicit_use_breaks_clause
    ; GCN: $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr, implicit $vgpr4_vgpr5
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr4_vgpr5 = FLAT_LOAD_DWORDX2 $vgpr6_vgpr7, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0_vgpr1 = FLAT_LOAD_DWORDX2 $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr, implicit $vgpr4_vgpr5
    $vgpr4_vgpr5 = FLAT_LOAD_DWORDX2 $vgpr6_vgpr7, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
name: trivial_clause_load_mubuf4_x2

body: |
  bb.0:
    ; GCN-LABEL: name: trivial_clause_load_mubuf4_x2
    ; GCN: $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: $vgpr3 = BUFFER_LOAD_DWORD_OFFEN $vgpr4, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    $vgpr3 = BUFFER_LOAD_DWORD_OFFEN $vgpr4, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    S_ENDPGM 0
...
---
name: break_clause_simple_load_mubuf_offen_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_simple_load_mubuf_offen_ptr
    ; GCN: $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFEN $vgpr3, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    $vgpr2 = BUFFER_LOAD_DWORD_OFFEN $vgpr3, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    S_ENDPGM 0
...
---
# BUFFER instructions overwriting their own inputs is supposedly OK.

name: mubuf_load4_overwrite_ptr

body: |
  bb.0:
    ; GCN-LABEL: name: mubuf_load4_overwrite_ptr
    ; GCN: $vgpr0 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: $vgpr1 = V_MOV_B32_e32 0, implicit $exec
    ; GCN-NEXT: $vgpr2 = V_MOV_B32_e32 $vgpr0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    $vgpr0 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    $vgpr1 = V_MOV_B32_e32 0, implicit $exec
    $vgpr2 = V_MOV_B32_e32 $vgpr0, implicit $exec
    S_ENDPGM 0
...
---
# Break a clause from interference between mubuf and flat instructions

name: break_clause_flat_load_mubuf_load

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_flat_load_mubuf_load
    ; GCN: $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFEN $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr0 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2 = BUFFER_LOAD_DWORD_OFFEN $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    S_ENDPGM 0
...
# Break a clause from interference between mubuf and flat instructions

# GCN-LABEL: name: break_clause_mubuf_load_flat_load
# GCN: bb.0:
# GCN-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFEN $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4
# XNACK-NEXT: S_NOP 0
# GCN-NEXT: $vgpr1 = FLAT_LOAD_DWORD $vgpr2_vgpr3
# GCN-NEXT: S_ENDPGM 0
name: break_clause_mubuf_load_flat_load

body: |
  bb.0:
    $vgpr0 = BUFFER_LOAD_DWORD_OFFEN $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    $vgpr1 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    S_ENDPGM 0
...
---

name: break_clause_atomic_rtn_into_ptr_flat4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_atomic_rtn_into_ptr_flat4
    ; GCN: $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr4 = FLAT_ATOMIC_ADD_RTN $vgpr5_vgpr6, $vgpr7, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr2 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr4 = FLAT_ATOMIC_ADD_RTN $vgpr5_vgpr6, $vgpr7, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
name: break_clause_atomic_nortn_ptr_load_flat4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_atomic_nortn_ptr_load_flat4
    ; GCN: FLAT_ATOMIC_ADD $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr2 = FLAT_LOAD_DWORD $vgpr3_vgpr4, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: S_ENDPGM 0

    FLAT_ATOMIC_ADD $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr2 = FLAT_LOAD_DWORD $vgpr3_vgpr4, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---

name: break_clause_atomic_rtn_into_ptr_mubuf4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_atomic_rtn_into_ptr_mubuf4
    ; GCN: $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: $vgpr2 = BUFFER_ATOMIC_ADD_OFFEN_RTN $vgpr2, $vgpr5, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0

    $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    $vgpr2 = BUFFER_ATOMIC_ADD_OFFEN_RTN $vgpr2, $vgpr5, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, implicit $exec
    S_ENDPGM 0
...
---

name: break_clause_atomic_nortn_ptr_load_mubuf4

body: |
  bb.0:
    ; GCN-LABEL: name: break_clause_atomic_nortn_ptr_load_mubuf4
    ; GCN: BUFFER_ATOMIC_ADD_OFFEN $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, implicit $exec
    ; GCN-NEXT: $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0

    BUFFER_ATOMIC_ADD_OFFEN $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, implicit $exec
    $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    S_ENDPGM 0
...
---
# Make sure there is no assert on mubuf instructions which do not have
# vaddr, and don't add register to track.
name: no_break_clause_mubuf_load_novaddr

body: |
  bb.0:
    ; GCN-LABEL: name: no_break_clause_mubuf_load_novaddr
    ; GCN: $vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: $vgpr3 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    $vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    $vgpr3 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
    S_ENDPGM 0
...
---
# Loads and stores using different addresses theoretically does not
# need a nop
name: mix_load_store_clause
body: |
  bb.0:
    ; GCN-LABEL: name: mix_load_store_clause
    ; GCN: FLAT_STORE_DWORD $vgpr0_vgpr1, $vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr10 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: FLAT_STORE_DWORD $vgpr2_vgpr3, $vgpr6, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr11 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    FLAT_STORE_DWORD $vgpr0_vgpr1, $vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr10 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    FLAT_STORE_DWORD $vgpr2_vgpr3, $vgpr6, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr11 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...
---
# Loads and stores using the same address needs a nop.

name: mix_load_store_clause_same_address
body: |
  bb.0:
    ; GCN-LABEL: name: mix_load_store_clause_same_address
    ; GCN: FLAT_STORE_DWORD $vgpr0_vgpr1, $vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr10 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; XNACK-NEXT: S_NOP 0
    ; GCN-NEXT: FLAT_STORE_DWORD $vgpr0_vgpr1, $vgpr6, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    ; GCN-NEXT: $vgpr11 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr

    FLAT_STORE_DWORD $vgpr0_vgpr1, $vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr10 = FLAT_LOAD_DWORD $vgpr2_vgpr3, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    FLAT_STORE_DWORD $vgpr0_vgpr1, $vgpr6, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    $vgpr11 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
    S_ENDPGM 0
...