loop-dec-liveout.mir 27.9 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
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -run-pass=arm-low-overhead-loops %s -o - --verify-machineinstrs | FileCheck %s

--- |
  define dso_local arm_aapcscc i32 @test1(i32* nocapture %arg, i32* nocapture readonly %arg1, i32* nocapture readonly %arg2, i32 %arg3) {
  bb:
    %tmp = icmp eq i32 %arg3, 0
    br i1 %tmp, label %bb27, label %bb4

  bb4:                                              ; preds = %bb
    %tmp5 = add i32 %arg3, -1
    %tmp6 = and i32 %arg3, 3
    %tmp7 = icmp ult i32 %tmp5, 3
    %tmp8 = add i32 %arg3, -4
    %tmp9 = sub i32 %tmp8, %tmp6
    %tmp10 = lshr i32 %tmp9, 2
    %tmp11 = add nuw nsw i32 %tmp10, 1
    br i1 %tmp7, label %bb13, label %bb12

  bb12:                                             ; preds = %bb4
    call void @llvm.set.loop.iterations.i32(i32 %tmp11)
    br label %bb28

  bb13:                                             ; preds = %bb28, %bb4
    %tmp14 = phi i32 [ 0, %bb4 ], [ %tmp54, %bb28 ]
    %exit.count = phi i32 [ 0, %bb4 ], [ %loop.dec, %bb28 ]
    %tmp15 = icmp eq i32 %tmp6, 0
    br i1 %tmp15, label %bb27, label %bb16

  bb16:                                             ; preds = %bb13
    %tmp17 = getelementptr inbounds i32, i32* %arg1, i32 %tmp14
    %tmp18 = load i32, i32* %tmp17, align 4
    %tmp19 = getelementptr inbounds i32, i32* %arg2, i32 %tmp14
    %tmp20 = load i32, i32* %tmp19, align 4
    %tmp21 = xor i32 %tmp20, %tmp18
    %tmp22 = getelementptr inbounds i32, i32* %arg, i32 %tmp14
    %tmp23 = load i32, i32* %tmp22, align 4
    %tmp24 = add nsw i32 %tmp23, %tmp21
    store i32 %tmp24, i32* %tmp22, align 4
    %tmp25 = add nuw i32 %tmp14, 1
    %tmp26 = icmp eq i32 %tmp6, 1
    br i1 %tmp26, label %bb27, label %bb57

  bb27:                                             ; preds = %bb68, %bb57, %bb16, %bb13, %bb
    %res = phi i32 [ %exit.count, %bb13 ], [ 3, %bb68 ], [ 2, %bb57 ], [ 1, %bb16 ], [ 0, %bb ]
    ret i32 %res

  bb28:                                             ; preds = %bb28, %bb12
    %lsr.iv15 = phi i32 [ %lsr.iv.next16, %bb28 ], [ %tmp11, %bb12 ]
    %lsr.iv = phi i32 [ %lsr.iv.next, %bb28 ], [ 0, %bb12 ]
    %tmp29 = phi i32 [ 0, %bb12 ], [ %tmp54, %bb28 ]
    %0 = bitcast i32* %arg1 to i8*
    %1 = bitcast i32* %arg2 to i8*
    %2 = bitcast i32* %arg to i8*
    %uglygep14 = getelementptr i8, i8* %0, i32 %lsr.iv
    %uglygep1415 = bitcast i8* %uglygep14 to i32*
    %scevgep617 = bitcast i32* %uglygep1415 to i32*
    %tmp34 = load i32, i32* %scevgep617, align 4
    %uglygep8 = getelementptr i8, i8* %1, i32 %lsr.iv
    %uglygep89 = bitcast i8* %uglygep8 to i32*
    %scevgep418 = bitcast i32* %uglygep89 to i32*
    %tmp35 = load i32, i32* %scevgep418, align 4
    %tmp36 = xor i32 %tmp35, %tmp34
    %uglygep2 = getelementptr i8, i8* %2, i32 %lsr.iv
    %uglygep23 = bitcast i8* %uglygep2 to i32*
    %scevgep219 = bitcast i32* %uglygep23 to i32*
    %tmp37 = load i32, i32* %scevgep219, align 4
    %tmp38 = add nsw i32 %tmp37, %tmp36
    store i32 %tmp38, i32* %scevgep219, align 4
    %uglygep33 = getelementptr i8, i8* %0, i32 %lsr.iv
    %uglygep3334 = bitcast i8* %uglygep33 to i32*
    %scevgep14 = getelementptr i32, i32* %uglygep3334, i32 1
    %tmp39 = load i32, i32* %scevgep14, align 4
    %uglygep27 = getelementptr i8, i8* %1, i32 %lsr.iv
    %uglygep2728 = bitcast i8* %uglygep27 to i32*
    %scevgep11 = getelementptr i32, i32* %uglygep2728, i32 1
    %tmp40 = load i32, i32* %scevgep11, align 4
    %tmp41 = xor i32 %tmp40, %tmp39
    %uglygep20 = getelementptr i8, i8* %2, i32 %lsr.iv
    %uglygep2021 = bitcast i8* %uglygep20 to i32*
    %scevgep9 = getelementptr i32, i32* %uglygep2021, i32 1
    %tmp42 = load i32, i32* %scevgep9, align 4
    %tmp43 = add nsw i32 %tmp42, %tmp41
    store i32 %tmp43, i32* %scevgep9, align 4
    %uglygep30 = getelementptr i8, i8* %0, i32 %lsr.iv
    %uglygep3031 = bitcast i8* %uglygep30 to i32*
    %scevgep12 = getelementptr i32, i32* %uglygep3031, i32 2
    %tmp44 = load i32, i32* %scevgep12, align 4
    %uglygep24 = getelementptr i8, i8* %1, i32 %lsr.iv
    %uglygep2425 = bitcast i8* %uglygep24 to i32*
    %scevgep10 = getelementptr i32, i32* %uglygep2425, i32 2
    %tmp45 = load i32, i32* %scevgep10, align 4
    %tmp46 = xor i32 %tmp45, %tmp44
    %uglygep17 = getelementptr i8, i8* %2, i32 %lsr.iv
    %uglygep1718 = bitcast i8* %uglygep17 to i32*
    %scevgep8 = getelementptr i32, i32* %uglygep1718, i32 2
    %tmp47 = load i32, i32* %scevgep8, align 4
    %tmp48 = add nsw i32 %tmp47, %tmp46
    store i32 %tmp48, i32* %scevgep8, align 4
    %uglygep11 = getelementptr i8, i8* %0, i32 %lsr.iv
    %uglygep1112 = bitcast i8* %uglygep11 to i32*
    %scevgep5 = getelementptr i32, i32* %uglygep1112, i32 3
    %tmp49 = load i32, i32* %scevgep5, align 4
    %uglygep5 = getelementptr i8, i8* %1, i32 %lsr.iv
    %uglygep56 = bitcast i8* %uglygep5 to i32*
    %scevgep3 = getelementptr i32, i32* %uglygep56, i32 3
    %tmp50 = load i32, i32* %scevgep3, align 4
    %tmp51 = xor i32 %tmp50, %tmp49
    %uglygep = getelementptr i8, i8* %2, i32 %lsr.iv
    %uglygep1 = bitcast i8* %uglygep to i32*
    %scevgep1 = getelementptr i32, i32* %uglygep1, i32 3
    %tmp52 = load i32, i32* %scevgep1, align 4
    %tmp53 = add nsw i32 %tmp52, %tmp51
    store i32 %tmp53, i32* %scevgep1, align 4
    %tmp54 = add nuw i32 %tmp29, 4
    %lsr.iv.next = add i32 %lsr.iv, 16
    %loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv15, i32 1)
    %tmp56 = icmp ne i32 %loop.dec, 0
    %lsr.iv.next16 = add nsw i32 %lsr.iv15, -1
    br i1 %tmp56, label %bb28, label %bb13

  bb57:                                             ; preds = %bb16
    %tmp58 = getelementptr inbounds i32, i32* %arg1, i32 %tmp25
    %tmp59 = load i32, i32* %tmp58, align 4
    %tmp60 = getelementptr inbounds i32, i32* %arg2, i32 %tmp25
    %tmp61 = load i32, i32* %tmp60, align 4
    %tmp62 = xor i32 %tmp61, %tmp59
    %tmp63 = getelementptr inbounds i32, i32* %arg, i32 %tmp25
    %tmp64 = load i32, i32* %tmp63, align 4
    %tmp65 = add nsw i32 %tmp64, %tmp62
    store i32 %tmp65, i32* %tmp63, align 4
    %tmp66 = add nuw i32 %tmp14, 2
    %tmp67 = icmp eq i32 %tmp6, 2
    br i1 %tmp67, label %bb27, label %bb68

  bb68:                                             ; preds = %bb57
    %tmp69 = getelementptr inbounds i32, i32* %arg1, i32 %tmp66
    %tmp70 = load i32, i32* %tmp69, align 4
    %tmp71 = getelementptr inbounds i32, i32* %arg2, i32 %tmp66
    %tmp72 = load i32, i32* %tmp71, align 4
    %tmp73 = xor i32 %tmp72, %tmp70
    %tmp74 = getelementptr inbounds i32, i32* %arg, i32 %tmp66
    %tmp75 = load i32, i32* %tmp74, align 4
    %tmp76 = add nsw i32 %tmp75, %tmp73
    store i32 %tmp76, i32* %tmp74, align 4
    br label %bb27
  }

  declare void @llvm.set.loop.iterations.i32(i32)
  declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)

...
---
name:            test1
alignment:       2
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
failedISel:      false
tracksRegLiveness: true
hasWinCFI:       false
registers:       []
liveins:
  - { reg: '$r0', virtual-reg: '' }
  - { reg: '$r1', virtual-reg: '' }
  - { reg: '$r2', virtual-reg: '' }
  - { reg: '$r3', virtual-reg: '' }
frameInfo:
  isFrameAddressTaken: false
  isReturnAddressTaken: false
  hasStackMap:     false
  hasPatchPoint:   false
  stackSize:       40
  offsetAdjustment: 0
  maxAlignment:    4
  adjustsStack:    false
  hasCalls:        false
  stackProtector:  ''
  maxCallFrameSize: 0
  cvBytesOfCalleeSavedRegisters: 0
  hasOpaqueSPAdjustment: false
  hasVAStart:      false
  hasMustTailInVarArgFunc: false
  localFrameSize:  0
  savePoint:       ''
  restorePoint:    ''
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -40, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 2, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r11', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 3, name: '', type: spill-slot, offset: -12, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r10', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 4, name: '', type: spill-slot, offset: -16, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r9', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 5, name: '', type: spill-slot, offset: -20, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r8', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 6, name: '', type: spill-slot, offset: -24, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 7, name: '', type: spill-slot, offset: -28, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r6', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 8, name: '', type: spill-slot, offset: -32, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r5', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 9, name: '', type: spill-slot, offset: -36, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
constants:       []
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: test1
  ; CHECK: bb.0.bb:
  ; CHECK:   successors: %bb.3(0x30000000), %bb.1(0x50000000)
  ; CHECK:   liveins: $lr, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
  ; CHECK:   $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
  ; CHECK:   frame-setup CFI_INSTRUCTION def_cfa_offset 36
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r11, -8
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r10, -12
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r9, -16
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r8, -20
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r7, -24
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r6, -28
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r5, -32
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r4, -36
  ; CHECK:   $sp = frame-setup tSUBspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK:   frame-setup CFI_INSTRUCTION def_cfa_offset 40
  ; CHECK:   tCBZ $r3, %bb.3
  ; CHECK: bb.1.bb4:
  ; CHECK:   successors: %bb.2(0x40000000), %bb.4(0x40000000)
  ; CHECK:   liveins: $r0, $r1, $r2, $r3
  ; CHECK:   renamable $r4, dead $cpsr = tSUBi3 renamable $r3, 1, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r7 = t2ANDri renamable $r3, 3, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   tCMPi8 killed renamable $r4, 3, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK:   tSTRspi killed renamable $r7, $sp, 0, 14 /* CC::al */, $noreg :: (store 4 into %stack.0)
  ; CHECK:   tBcc %bb.4, 2 /* CC::hs */, killed $cpsr
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.6(0x80000000)
  ; CHECK:   liveins: $r0, $r1, $r2
  ; CHECK:   renamable $r8 = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $lr = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   tB %bb.6, 14 /* CC::al */, $noreg
  ; CHECK: bb.3:
  ; CHECK:   successors: %bb.12(0x80000000)
  ; CHECK:   renamable $lr = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   tB %bb.12, 14 /* CC::al */, $noreg
  ; CHECK: bb.4.bb12:
  ; CHECK:   successors: %bb.5(0x80000000)
  ; CHECK:   liveins: $r0, $r1, $r2, $r3
  ; CHECK:   renamable $r3 = t2BICri killed renamable $r3, 3, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r4, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r8 = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r3 = nuw nsw t2ADDrs killed renamable $r4, killed renamable $r3, 19, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   $lr = t2DLS killed renamable $r3
  ; CHECK:   renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
  ; CHECK: bb.5.bb28:
  ; CHECK:   successors: %bb.5(0x7c000000), %bb.6(0x04000000)
  ; CHECK:   liveins: $lr, $r0, $r1, $r2, $r3, $r8
  ; CHECK:   renamable $r5 = tLDRr renamable $r1, $r3, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep617)
  ; CHECK:   renamable $r7, dead $cpsr = tADDrr renamable $r2, renamable $r3, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r6 = tLDRr renamable $r2, $r3, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep418)
  ; CHECK:   renamable $r8 = nuw t2ADDri killed renamable $r8, 4, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r5, dead $cpsr = tEOR killed renamable $r5, killed renamable $r6, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r6 = tLDRr renamable $r0, $r3, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep219)
  ; CHECK:   renamable $r5 = nsw tADDhirr killed renamable $r5, killed renamable $r6, 14 /* CC::al */, $noreg
  ; CHECK:   tSTRr killed renamable $r5, renamable $r0, $r3, 14 /* CC::al */, $noreg :: (store 4 into %ir.scevgep219)
  ; CHECK:   renamable $r5, dead $cpsr = tADDrr renamable $r1, renamable $r3, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r4 = tLDRi renamable $r7, 1, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep11)
  ; CHECK:   renamable $r6 = tLDRi renamable $r5, 1, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep14)
  ; CHECK:   renamable $r9 = t2EORrr killed renamable $r4, killed renamable $r6, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r6, dead $cpsr = tADDrr renamable $r0, renamable $r3, 14 /* CC::al */, $noreg
  ; CHECK:   $r11 = t2ADDri $r6, 4, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r3, dead $cpsr = tADDi8 killed renamable $r3, 16, 14 /* CC::al */, $noreg
  ; CHECK:   t2LDMIA killed $r11, 14 /* CC::al */, $noreg, def $r4, def $r10, def $r11 :: (load 4 from %ir.scevgep9), (load 4 from %ir.scevgep8), (load 4 from %ir.scevgep1)
  ; CHECK:   renamable $r4 = nsw tADDhirr killed renamable $r4, killed renamable $r9, 14 /* CC::al */, $noreg
  ; CHECK:   tSTRi killed renamable $r4, renamable $r6, 1, 14 /* CC::al */, $noreg :: (store 4 into %ir.scevgep9)
  ; CHECK:   renamable $r9 = t2LDRi12 renamable $r5, 8, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep12)
  ; CHECK:   renamable $r4 = tLDRi renamable $r7, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep10)
  ; CHECK:   renamable $r4 = t2EORrr killed renamable $r4, killed renamable $r9, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r4 = nsw tADDhirr killed renamable $r4, killed renamable $r10, 14 /* CC::al */, $noreg
  ; CHECK:   tSTRi killed renamable $r4, renamable $r6, 2, 14 /* CC::al */, $noreg :: (store 4 into %ir.scevgep8)
  ; CHECK:   renamable $r4 = tLDRi killed renamable $r5, 3, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep5)
  ; CHECK:   renamable $r5 = tLDRi killed renamable $r7, 3, 14 /* CC::al */, $noreg :: (load 4 from %ir.scevgep3)
  ; CHECK:   renamable $r4, dead $cpsr = tEOR killed renamable $r4, killed renamable $r5, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r4 = nsw tADDhirr killed renamable $r4, killed renamable $r11, 14 /* CC::al */, $noreg
  ; CHECK:   tSTRi killed renamable $r4, killed renamable $r6, 3, 14 /* CC::al */, $noreg :: (store 4 into %ir.scevgep1)
  ; CHECK:   $lr = t2LEUpdate killed renamable $lr, %bb.5
  ; CHECK: bb.6.bb13:
  ; CHECK:   successors: %bb.12(0x30000000), %bb.7(0x50000000)
  ; CHECK:   liveins: $lr, $r0, $r1, $r2, $r8
  ; CHECK:   renamable $r5 = tLDRspi $sp, 0, 14 /* CC::al */, $noreg :: (load 4 from %stack.0)
  ; CHECK:   tCBZ $r5, %bb.12
  ; CHECK: bb.7.bb16:
  ; CHECK:   successors: %bb.8(0x40000000), %bb.9(0x40000000)
  ; CHECK:   liveins: $lr, $r0, $r1, $r2, $r5, $r8
  ; CHECK:   renamable $lr = t2LDRs renamable $r1, renamable $r8, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp17)
  ; CHECK:   tCMPi8 renamable $r5, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK:   renamable $r3 = t2LDRs renamable $r2, renamable $r8, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp19)
  ; CHECK:   renamable $lr = t2EORrr killed renamable $lr, killed renamable $r3, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r3 = t2LDRs renamable $r0, renamable $r8, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp22)
  ; CHECK:   renamable $r3 = nsw tADDhirr killed renamable $r3, killed renamable $lr, 14 /* CC::al */, $noreg
  ; CHECK:   t2STRs killed renamable $r3, renamable $r0, renamable $r8, 2, 14 /* CC::al */, $noreg :: (store 4 into %ir.tmp22)
  ; CHECK:   tBcc %bb.9, 1 /* CC::ne */, killed $cpsr
  ; CHECK: bb.8:
  ; CHECK:   successors: %bb.12(0x80000000)
  ; CHECK:   renamable $lr = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   tB %bb.12, 14 /* CC::al */, $noreg
  ; CHECK: bb.9.bb57:
  ; CHECK:   successors: %bb.10(0x40000000), %bb.11(0x40000000)
  ; CHECK:   liveins: $r0, $r1, $r2, $r5, $r8
  ; CHECK:   renamable $r3 = nuw t2ADDri renamable $r8, 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   tCMPi8 killed renamable $r5, 2, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK:   renamable $r7 = t2LDRs renamable $r1, renamable $r3, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp58)
  ; CHECK:   renamable $r6 = t2LDRs renamable $r2, renamable $r3, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp60)
  ; CHECK:   renamable $r7 = t2EORrr killed renamable $r7, killed renamable $r6, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r6 = t2LDRs renamable $r0, renamable $r3, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp63)
  ; CHECK:   renamable $r7 = nsw tADDhirr killed renamable $r7, killed renamable $r6, 14 /* CC::al */, $noreg
  ; CHECK:   t2STRs killed renamable $r7, renamable $r0, killed renamable $r3, 2, 14 /* CC::al */, $noreg :: (store 4 into %ir.tmp63)
  ; CHECK:   tBcc %bb.11, 1 /* CC::ne */, killed $cpsr
  ; CHECK: bb.10:
  ; CHECK:   successors: %bb.12(0x80000000)
  ; CHECK:   renamable $lr = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   tB %bb.12, 14 /* CC::al */, $noreg
  ; CHECK: bb.11.bb68:
  ; CHECK:   successors: %bb.12(0x80000000)
  ; CHECK:   liveins: $r0, $r1, $r2, $r8
  ; CHECK:   renamable $r3 = nuw t2ADDri killed renamable $r8, 2, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $lr = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r1 = t2LDRs killed renamable $r1, renamable $r3, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp69)
  ; CHECK:   renamable $r2 = t2LDRs killed renamable $r2, renamable $r3, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp71)
  ; CHECK:   renamable $r1, dead $cpsr = tEOR killed renamable $r1, killed renamable $r2, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r2 = t2LDRs renamable $r0, renamable $r3, 2, 14 /* CC::al */, $noreg :: (load 4 from %ir.tmp74)
  ; CHECK:   renamable $r1 = nsw tADDhirr killed renamable $r1, killed renamable $r2, 14 /* CC::al */, $noreg
  ; CHECK:   t2STRs killed renamable $r1, killed renamable $r0, killed renamable $r3, 2, 14 /* CC::al */, $noreg :: (store 4 into %ir.tmp74)
  ; CHECK: bb.12.bb27:
  ; CHECK:   liveins: $lr
  ; CHECK:   $r0 = tMOVr killed $lr, 14 /* CC::al */, $noreg
  ; CHECK:   $sp = tADDspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK:   $sp = t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $r11, def $pc, implicit killed $r0
  bb.0.bb:
    successors: %bb.3(0x30000000), %bb.1(0x50000000)
    liveins: $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $lr

    $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
    frame-setup CFI_INSTRUCTION def_cfa_offset 36
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r11, -8
    frame-setup CFI_INSTRUCTION offset $r10, -12
    frame-setup CFI_INSTRUCTION offset $r9, -16
    frame-setup CFI_INSTRUCTION offset $r8, -20
    frame-setup CFI_INSTRUCTION offset $r7, -24
    frame-setup CFI_INSTRUCTION offset $r6, -28
    frame-setup CFI_INSTRUCTION offset $r5, -32
    frame-setup CFI_INSTRUCTION offset $r4, -36
    $sp = frame-setup tSUBspi $sp, 1, 14, $noreg
    frame-setup CFI_INSTRUCTION def_cfa_offset 40
    tCBZ $r3, %bb.3

  bb.1.bb4:
    successors: %bb.2(0x40000000), %bb.4(0x40000000)
    liveins: $r0, $r1, $r2, $r3

    renamable $r4, dead $cpsr = tSUBi3 renamable $r3, 1, 14, $noreg
    renamable $r7 = t2ANDri renamable $r3, 3, 14, $noreg, $noreg
    tCMPi8 killed renamable $r4, 3, 14, $noreg, implicit-def $cpsr
    tSTRspi killed renamable $r7, $sp, 0, 14, $noreg :: (store 4 into %stack.0)
    tBcc %bb.4, 2, killed $cpsr

  bb.2:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r8 = t2MOVi 0, 14, $noreg, $noreg
    renamable $lr = t2MOVi 0, 14, $noreg, $noreg
    tB %bb.6, 14, $noreg

  bb.3:
    successors: %bb.12(0x80000000)

    renamable $lr = t2MOVi 0, 14, $noreg, $noreg
    tB %bb.12, 14, $noreg

  bb.4.bb12:
    successors: %bb.5(0x80000000)
    liveins: $r0, $r1, $r2, $r3

    renamable $r3 = t2BICri killed renamable $r3, 3, 14, $noreg, $noreg
    renamable $r4, dead $cpsr = tMOVi8 1, 14, $noreg
    renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14, $noreg
    renamable $r8 = t2MOVi 0, 14, $noreg, $noreg
    renamable $r3 = nuw nsw t2ADDrs killed renamable $r4, killed renamable $r3, 19, 14, $noreg, $noreg
    t2DoLoopStart renamable $r3
    $lr = tMOVr $r3, 14, $noreg
    renamable $r3, dead $cpsr = tMOVi8 0, 14, $noreg

  bb.5.bb28:
    successors: %bb.5(0x7c000000), %bb.6(0x04000000)
    liveins: $r0, $r1, $r2, $r3, $r8, $lr

    renamable $r5 = tLDRr renamable $r1, $r3, 14, $noreg :: (load 4 from %ir.scevgep617)
    renamable $r7, dead $cpsr = tADDrr renamable $r2, renamable $r3, 14, $noreg
    renamable $r6 = tLDRr renamable $r2, $r3, 14, $noreg :: (load 4 from %ir.scevgep418)
    renamable $r8 = nuw t2ADDri killed renamable $r8, 4, 14, $noreg, $noreg
    renamable $r5, dead $cpsr = tEOR killed renamable $r5, killed renamable $r6, 14, $noreg
    renamable $r6 = tLDRr renamable $r0, $r3, 14, $noreg :: (load 4 from %ir.scevgep219)
    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $r5 = nsw tADDhirr killed renamable $r5, killed renamable $r6, 14, $noreg
    tSTRr killed renamable $r5, renamable $r0, $r3, 14, $noreg :: (store 4 into %ir.scevgep219)
    renamable $r5, dead $cpsr = tADDrr renamable $r1, renamable $r3, 14, $noreg
    renamable $r4 = tLDRi renamable $r7, 1, 14, $noreg :: (load 4 from %ir.scevgep11)
    renamable $r6 = tLDRi renamable $r5, 1, 14, $noreg :: (load 4 from %ir.scevgep14)
    renamable $r9 = t2EORrr killed renamable $r4, killed renamable $r6, 14, $noreg, $noreg
    renamable $r6, dead $cpsr = tADDrr renamable $r0, renamable $r3, 14, $noreg
    $r11 = t2ADDri $r6, 4, 14, $noreg, $noreg
    renamable $r3, dead $cpsr = tADDi8 killed renamable $r3, 16, 14, $noreg
    t2LDMIA killed $r11, 14, $noreg, def $r4, def $r10, def $r11 :: (load 4 from %ir.scevgep9), (load 4 from %ir.scevgep8), (load 4 from %ir.scevgep1)
    renamable $r4 = nsw tADDhirr killed renamable $r4, killed renamable $r9, 14, $noreg
    tSTRi killed renamable $r4, renamable $r6, 1, 14, $noreg :: (store 4 into %ir.scevgep9)
    renamable $r9 = t2LDRi12 renamable $r5, 8, 14, $noreg :: (load 4 from %ir.scevgep12)
    renamable $r4 = tLDRi renamable $r7, 2, 14, $noreg :: (load 4 from %ir.scevgep10)
    renamable $r4 = t2EORrr killed renamable $r4, killed renamable $r9, 14, $noreg, $noreg
    renamable $r4 = nsw tADDhirr killed renamable $r4, killed renamable $r10, 14, $noreg
    tSTRi killed renamable $r4, renamable $r6, 2, 14, $noreg :: (store 4 into %ir.scevgep8)
    renamable $r4 = tLDRi killed renamable $r5, 3, 14, $noreg :: (load 4 from %ir.scevgep5)
    renamable $r5 = tLDRi killed renamable $r7, 3, 14, $noreg :: (load 4 from %ir.scevgep3)
    renamable $r4, dead $cpsr = tEOR killed renamable $r4, killed renamable $r5, 14, $noreg
    renamable $r4 = nsw tADDhirr killed renamable $r4, killed renamable $r11, 14, $noreg
    tSTRi killed renamable $r4, killed renamable $r6, 3, 14, $noreg :: (store 4 into %ir.scevgep1)
    t2LoopEnd renamable $lr, %bb.5, implicit-def dead $cpsr
    tB %bb.6, 14, $noreg

  bb.6.bb13:
    successors: %bb.12(0x30000000), %bb.7(0x50000000)
    liveins: $lr, $r0, $r1, $r2, $r8

    renamable $r5 = tLDRspi $sp, 0, 14, $noreg :: (load 4 from %stack.0)
    tCBZ $r5, %bb.12

  bb.7.bb16:
    successors: %bb.8(0x40000000), %bb.9(0x40000000)
    liveins: $lr, $r0, $r1, $r2, $r5, $r8

    renamable $lr = t2LDRs renamable $r1, renamable $r8, 2, 14, $noreg :: (load 4 from %ir.tmp17)
    tCMPi8 renamable $r5, 1, 14, $noreg, implicit-def $cpsr
    renamable $r3 = t2LDRs renamable $r2, renamable $r8, 2, 14, $noreg :: (load 4 from %ir.tmp19)
    renamable $lr = t2EORrr killed renamable $lr, killed renamable $r3, 14, $noreg, $noreg
    renamable $r3 = t2LDRs renamable $r0, renamable $r8, 2, 14, $noreg :: (load 4 from %ir.tmp22)
    renamable $r3 = nsw tADDhirr killed renamable $r3, killed renamable $lr, 14, $noreg
    t2STRs killed renamable $r3, renamable $r0, renamable $r8, 2, 14, $noreg :: (store 4 into %ir.tmp22)
    tBcc %bb.9, 1, killed $cpsr

  bb.8:
    successors: %bb.12(0x80000000)

    renamable $lr = t2MOVi 1, 14, $noreg, $noreg
    tB %bb.12, 14, $noreg

  bb.9.bb57:
    successors: %bb.10(0x40000000), %bb.11(0x40000000)
    liveins: $r0, $r1, $r2, $r5, $r8

    renamable $r3 = nuw t2ADDri renamable $r8, 1, 14, $noreg, $noreg
    tCMPi8 killed renamable $r5, 2, 14, $noreg, implicit-def $cpsr
    renamable $r7 = t2LDRs renamable $r1, renamable $r3, 2, 14, $noreg :: (load 4 from %ir.tmp58)
    renamable $r6 = t2LDRs renamable $r2, renamable $r3, 2, 14, $noreg :: (load 4 from %ir.tmp60)
    renamable $r7 = t2EORrr killed renamable $r7, killed renamable $r6, 14, $noreg, $noreg
    renamable $r6 = t2LDRs renamable $r0, renamable $r3, 2, 14, $noreg :: (load 4 from %ir.tmp63)
    renamable $r7 = nsw tADDhirr killed renamable $r7, killed renamable $r6, 14, $noreg
    t2STRs killed renamable $r7, renamable $r0, killed renamable $r3, 2, 14, $noreg :: (store 4 into %ir.tmp63)
    tBcc %bb.11, 1, killed $cpsr

  bb.10:
    successors: %bb.12(0x80000000)

    renamable $lr = t2MOVi 2, 14, $noreg, $noreg
    tB %bb.12, 14, $noreg

  bb.11.bb68:
    successors: %bb.12(0x80000000)
    liveins: $r0, $r1, $r2, $r8

    renamable $r3 = nuw t2ADDri killed renamable $r8, 2, 14, $noreg, $noreg
    renamable $lr = t2MOVi 3, 14, $noreg, $noreg
    renamable $r1 = t2LDRs killed renamable $r1, renamable $r3, 2, 14, $noreg :: (load 4 from %ir.tmp69)
    renamable $r2 = t2LDRs killed renamable $r2, renamable $r3, 2, 14, $noreg :: (load 4 from %ir.tmp71)
    renamable $r1, dead $cpsr = tEOR killed renamable $r1, killed renamable $r2, 14, $noreg
    renamable $r2 = t2LDRs renamable $r0, renamable $r3, 2, 14, $noreg :: (load 4 from %ir.tmp74)
    renamable $r1 = nsw tADDhirr killed renamable $r1, killed renamable $r2, 14, $noreg
    t2STRs killed renamable $r1, killed renamable $r0, killed renamable $r3, 2, 14, $noreg :: (store 4 into %ir.tmp74)

  bb.12.bb27:
    liveins: $lr

    $r0 = tMOVr killed $lr, 14, $noreg
    $sp = tADDspi $sp, 1, 14, $noreg
    $sp = t2LDMIA_RET $sp, 14, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $r11, def $pc, implicit killed $r0

...