llvm/llvm/test/CodeGen/Thumb2/mve-wls-block-placement.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main-none-eabi -mattr=+mve -run-pass=arm-block-placement -verify-machineinstrs %s -o - | FileCheck %s
--- |

  ; Checks that Predecessor gets moved (to before the LoopExit) if it contains a backward WLS.
  define void @backwards_branch(i32 %N, ptr nocapture %a, ptr nocapture readonly %b)   {
  entry:
    unreachable
  }

  ; Checks that Predecessor (containing a backwards WLS) does not get moved to before the loopExit if it is the entry block.
  define void @backwards_branch_entry_block(i32 %N, ptr nocapture %a, ptr nocapture readonly %b)   {
  entry:
    unreachable
  }

  ; Checks that Predecessor (to which a forward WLS exists) is not moved if moving it would cause the WLS to become backwards branching.
  define void @backwards_branch_backwards_wls(i32 %N, i32 %M, ptr nocapture %a, ptr nocapture %b, ptr nocapture %c)   {
  entry:
    unreachable
  }

  ; Checks that a MachineFunction is unaffected if it doesn't contain any WLS (pseudo) instruction.
  define void @no_predecessor(i32 %N, i32 %M, ptr nocapture %a, ptr nocapture %b, ptr nocapture %c)   {
  entry:
    unreachable
  }

  ; Within a nested (Both the WLS and loopExit are at depth=3 here) loop, checks that Predecessor
  ; gets moved (in backward direction) if there exists a backdwards WLS from it to the LoopExit.
  define void @nested_loops(i32 %n, i32 %m, i32 %l, ptr noalias %X, ptr noalias %Y)   {
  entry:
    unreachable
  }

  ; Checks that Predecessor (to which a forward WLS exists) is moved if moving it would NOT cause the WLS
  ; to become backwards branching.
  define void @backwards_branch_forwards_wls(i32 %N, i32 %M, ptr nocapture %a, ptr nocapture %b, ptr nocapture %c) {
  entry:
    unreachable
  }

  ; Checks that multiple predecessor case is handled appropriately
  define void @multiple_predecessors(i32 %d, i32 %e, i32 %f) {
  entry:
    unreachable
  }

  ; Checks that blocks after jump tables work
  define void @jump_table(i32 %d, i32 %e, i32 %f) {
  entry:
    unreachable
  }

  declare dso_local i32 @g(...)

  declare dso_local i32 @h(...)

...
---
name:            backwards_branch
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: backwards_branch
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 11, 8, implicit-def $itstate
  ; CHECK-NEXT:   frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2WhileLoopStartLR killed renamable $r0, %bb.2, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.3, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   successors: %bb.3(0x7c000000), %bb.2(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r0 = tLDRi renamable $r2, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tSTRi killed renamable $r0, renamable $r1, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.3, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.2, 14 /* CC::al */, $noreg
  bb.0:
    successors: %bb.2(0x80000000)
    liveins: $r0, $r1, $r2, $lr

    tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 11, 8, implicit-def $itstate
    frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate

  bb.1:
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.2:
    successors: %bb.3(0x80000000)
    liveins: $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.1, implicit-def dead $cpsr

  bb.3:
    successors: %bb.3(0x7c000000), %bb.1(0x04000000)
    liveins: $lr, $r1, $r2

    renamable $r0 = tLDRi renamable $r2, 0, 14 /* CC::al */, $noreg
    tSTRi killed renamable $r0, renamable $r1, 0, 14 /* CC::al */, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.3, implicit-def dead $cpsr
    t2B %bb.1, 14 /* CC::al */, $noreg

...
---
name:            backwards_branch_entry_block
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: backwards_branch_entry_block
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 11, 8, implicit-def $itstate
  ; CHECK-NEXT:   frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2WhileLoopStartLR killed renamable $r0, %bb.0, implicit-def dead $cpsr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   successors: %bb.3(0x7c000000), %bb.1(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r0 = tLDRi renamable $r2, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tSTRi killed renamable $r0, renamable $r1, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.3, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.1, 14 /* CC::al */, $noreg
  bb.0:
    successors: %bb.2(0x80000000)
    liveins: $r0, $r1, $r2, $lr

    tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 11, 8, implicit-def $itstate
    frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate

  bb.1:
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.2:
    successors: %bb.3(0x80000000)
    liveins: $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.0, implicit-def dead $cpsr

  bb.3:
    successors: %bb.3(0x7c000000), %bb.1(0x04000000)
    liveins: $lr, $r1, $r2

    renamable $r0 = tLDRi renamable $r2, 0, 14 /* CC::al */, $noreg
    tSTRi killed renamable $r0, renamable $r1, 0, 14 /* CC::al */, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.3, implicit-def dead $cpsr
    t2B %bb.1, 14 /* CC::al */, $noreg

...
---
name:            backwards_branch_backwards_wls
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: backwards_branch_backwards_wls
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 11, 8, implicit-def $itstate
  ; CHECK-NEXT:   frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   successors: %bb.3(0x40000000), %bb.6(0x40000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2WhileLoopStartLR killed renamable $r0, %bb.3, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.6, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   successors: %bb.1(0x7c000000), %bb.4(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   t2CMPri renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2Bcc %bb.1, 0 /* CC::eq */, $cpsr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4:
  ; CHECK-NEXT:   successors: %bb.5(0x80000000)
  ; CHECK-NEXT:   liveins: $r2, $r1, $r0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2DoLoopStart renamable $r0
  ; CHECK-NEXT:   t2B %bb.5, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.5:
  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.5(0x40000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.5, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.6:
  ; CHECK-NEXT:   successors: %bb.6(0x40000000), %bb.3(0x40000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.6, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.3, 14 /* CC::al */, $noreg
  bb.0:
    successors: %bb.2(0x80000000)
    liveins: $r0, $r1, $r2, $lr

    tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 11, 8, implicit-def $itstate
    frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate

  bb.1:
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.2:
    successors: %bb.3(0x80000000), %bb.5(0x80000000)
    liveins: $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.3, implicit-def dead $cpsr
    t2B %bb.5, 14 /* CC::al */, $noreg

  bb.3:
    successors: %bb.1(0x7c000000), %bb.4(0x04000000)
    liveins: $lr, $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.1, implicit-def dead $cpsr
    t2B %bb.4, 14 /* CC::al */, $noreg

  bb.4:
    successors: %bb.1, %bb.4
    liveins: $lr, $r1, $r2

    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.4, implicit-def dead $cpsr
    t2B %bb.1, 14 /* CC::al */, $noreg

  bb.5:
    successors: %bb.5, %bb.3
    liveins: $lr, $r1, $r2

    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.5, implicit-def dead $cpsr
    t2B %bb.3, 14 /* CC::al */, $noreg
...
---
name:            no_predecessor
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: no_predecessor
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.2(0x30000000), %bb.1(0x50000000)
  ; CHECK-NEXT:   liveins: $r0, $r4, $r5, $r7, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $r5, $r7, killed $lr, implicit-def $sp, implicit $sp
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION def_cfa_offset 16
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r7, -8
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r5, -12
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r4, -16
  ; CHECK-NEXT:   $r7 = frame-setup tADDrSPi $sp, 2, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION def_cfa $r7, 8
  ; CHECK-NEXT:   $r4 = tMOVr killed $r0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tBL 14 /* CC::al */, $noreg, @g, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $r0
  ; CHECK-NEXT:   tCMPi8 killed renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2Bcc %bb.2, 0 /* CC::eq */, killed $cpsr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
  ; CHECK-NEXT:   liveins: $r4
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r0, dead $cpsr = tMOVi8 4, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $r5 = t2LDRSHi12 killed renamable $r0, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   t2B %bb.4, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
  ; CHECK-NEXT:   liveins: $r4
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r5, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   t2B %bb.4, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
  ; CHECK-NEXT:   liveins: $r4, $r5
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $r0 = tMOVr $r5, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tBL 14 /* CC::al */, $noreg, @h, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def dead $r0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4:
  ; CHECK-NEXT:   successors: %bb.5(0x04000000), %bb.3(0x7c000000)
  ; CHECK-NEXT:   liveins: $r4, $r5
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r0 = tLDRi renamable $r4, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tCMPi8 killed renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2Bcc %bb.3, 1 /* CC::ne */, killed $cpsr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.5:
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $r5, def $r7, def $pc
  bb.0:
    successors: %bb.1(0x30000000), %bb.2(0x50000000)
    liveins: $r0, $r4, $r5, $r7, $lr

    frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $r5, $r7, killed $lr, implicit-def $sp, implicit $sp
    frame-setup CFI_INSTRUCTION def_cfa_offset 16
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r7, -8
    frame-setup CFI_INSTRUCTION offset $r5, -12
    frame-setup CFI_INSTRUCTION offset $r4, -16
    $r7 = frame-setup tADDrSPi $sp, 2, 14 /* CC::al */, $noreg
    frame-setup CFI_INSTRUCTION def_cfa $r7, 8
    $r4 = tMOVr killed $r0, 14 /* CC::al */, $noreg
    tBL 14 /* CC::al */, $noreg, @g, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $r0
    tCMPi8 killed renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2Bcc %bb.1, 0 /* CC::eq */, killed $cpsr

  bb.2:
    successors: %bb.3(0x80000000)
    liveins: $r4

    renamable $r0, dead $cpsr = tMOVi8 4, 14 /* CC::al */, $noreg
    renamable $r5 = t2LDRSHi12 killed renamable $r0, 0, 14 /* CC::al */, $noreg
    t2B %bb.3, 14 /* CC::al */, $noreg

  bb.1:
    successors: %bb.3(0x80000000)
    liveins: $r4

    renamable $r5, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
    t2B %bb.3, 14 /* CC::al */, $noreg

  bb.4:
    successors: %bb.3(0x80000000)
    liveins: $r4, $r5

    $r0 = tMOVr $r5, 14 /* CC::al */, $noreg
    tBL 14 /* CC::al */, $noreg, @h, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def dead $r0

  bb.3:
    successors: %bb.5(0x04000000), %bb.4(0x7c000000)
    liveins: $r4, $r5

    renamable $r0 = tLDRi renamable $r4, 0, 14 /* CC::al */, $noreg
    tCMPi8 killed renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2Bcc %bb.4, 1 /* CC::ne */, killed $cpsr

  bb.5:
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $r5, def $r7, def $pc
...
---
name:            nested_loops
tracksRegLiveness: true
liveins:
  - { reg: '$r0' }
  - { reg: '$r1' }
  - { reg: '$r2' }
  - { reg: '$r3' }
frameInfo:
  stackSize:       32
  maxAlignment:    4
  maxCallFrameSize: 0
fixedStack:
  - { id: 0, size: 4, alignment: 8, isImmutable: true }
stack:
  - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$lr',
      callee-saved-restored: false }
  - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '$r10' }
  - { id: 2, type: spill-slot, offset: -12, size: 4, alignment: 4, callee-saved-register: '$r9' }
  - { id: 3, type: spill-slot, offset: -16, size: 4, alignment: 4, callee-saved-register: '$r8' }
  - { id: 4, type: spill-slot, offset: -20, size: 4, alignment: 4, callee-saved-register: '$r7' }
  - { id: 5, type: spill-slot, offset: -24, size: 4, alignment: 4, callee-saved-register: '$r6' }
  - { id: 6, type: spill-slot, offset: -28, size: 4, alignment: 4, callee-saved-register: '$r5' }
  - { id: 7, type: spill-slot, offset: -32, size: 4, alignment: 4, callee-saved-register: '$r4' }
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: nested_loops
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $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 $lr
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION def_cfa_offset 32
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r10, -8
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r9, -12
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r8, -16
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r7, -20
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r6, -24
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r5, -28
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r4, -32
  ; CHECK-NEXT:   tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 11, 8, implicit-def $itstate
  ; CHECK-NEXT:   $sp = frame-destroy t2LDMIA_RET $sp, 11 /* CC::lt */, killed $cpsr, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $pc, implicit killed $itstate
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $r3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r12 = t2LDRi12 $sp, 32, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
  ; CHECK-NEXT:   $r9 = tMOVr killed $r2, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $r8 = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
  ; CHECK-NEXT:   t2B %bb.3, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   successors: %bb.9(0x04000000), %bb.3(0x7c000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r3, $r8, $r9, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r8 = nuw nsw t2ADDri killed renamable $r8, 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK-NEXT:   renamable $r3, dead $cpsr = tADDi8 killed renamable $r3, 1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tCMPhir renamable $r8, renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   renamable $r12 = t2ADDri killed renamable $r12, 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK-NEXT:   t2Bcc %bb.9, 0 /* CC::eq */, killed $cpsr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   successors: %bb.4(0x50000000), %bb.2(0x30000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r3, $r8, $r9, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tCMPi8 renamable $r1, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2Bcc %bb.2, 11 /* CC::lt */, killed $cpsr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4:
  ; CHECK-NEXT:   successors: %bb.5(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r3, $r8, $r9, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r4, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   $r10 = tMOVr $r12, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   $r2 = tMOVr $r3, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   t2B %bb.5, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.5:
  ; CHECK-NEXT:   successors: %bb.7(0x50000000), %bb.6(0x30000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $r3, $r4, $r8, $r9, $r10, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2WhileLoopStartLR killed renamable $r9, %bb.6, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.7, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.6:
  ; CHECK-NEXT:   successors: %bb.2(0x04000000), %bb.5(0x7c000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $r3, $r4, $r8, $r9, $r10, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r4, dead $cpsr = nuw nsw tADDi8 killed renamable $r4, 1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $r2, dead $cpsr = tADDi8 killed renamable $r2, 1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tCMPr renamable $r4, renamable $r1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   renamable $r10 = t2ADDri killed renamable $r10, 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK-NEXT:   t2Bcc %bb.2, 0 /* CC::eq */, killed $cpsr
  ; CHECK-NEXT:   t2B %bb.5, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.7:
  ; CHECK-NEXT:   successors: %bb.8(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $r3, $r4, $r8, $r9, $r10, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $r5 = tMOVr $r10, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   $r6 = tMOVr $r2, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   t2B %bb.8, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.8:
  ; CHECK-NEXT:   successors: %bb.8(0x7c000000), %bb.6(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r8, $r9, $r10, $r12
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tSTRi killed $r0, $r1, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.8, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.6, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.9:
  ; CHECK-NEXT:   $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $pc
  bb.0:
    successors: %bb.1
    liveins: $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $lr

    $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 $lr
    frame-setup CFI_INSTRUCTION def_cfa_offset 32
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r10, -8
    frame-setup CFI_INSTRUCTION offset $r9, -12
    frame-setup CFI_INSTRUCTION offset $r8, -16
    frame-setup CFI_INSTRUCTION offset $r7, -20
    frame-setup CFI_INSTRUCTION offset $r6, -24
    frame-setup CFI_INSTRUCTION offset $r5, -28
    frame-setup CFI_INSTRUCTION offset $r4, -32
    tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 11, 8, implicit-def $itstate
    $sp = frame-destroy t2LDMIA_RET $sp, 11 /* CC::lt */, killed $cpsr, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $pc, implicit killed $itstate

  bb.1:
    liveins: $r0, $r1, $r2, $r3

    renamable $r12 = t2LDRi12 $sp, 32, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
    $r9 = tMOVr killed $r2, 14 /* CC::al */, $noreg
    renamable $r8 = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
    t2B %bb.2, 14 /* CC::al */, $noreg

  bb.8:
    successors: %bb.9(0x04000000), %bb.2(0x7c000000)
    liveins: $r0, $r1, $r3, $r8, $r9, $r12

    renamable $r8 = nuw nsw t2ADDri killed renamable $r8, 1, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tADDi8 killed renamable $r3, 1, 14 /* CC::al */, $noreg
    tCMPhir renamable $r8, renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
    renamable $r12 = t2ADDri killed renamable $r12, 1, 14 /* CC::al */, $noreg, $noreg
    t2Bcc %bb.9, 0 /* CC::eq */, killed $cpsr

  bb.2:
    successors: %bb.3(0x50000000), %bb.8(0x30000000)
    liveins: $r0, $r1, $r3, $r8, $r9, $r12

    tCMPi8 renamable $r1, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2Bcc %bb.8, 11 /* CC::lt */, killed $cpsr

  bb.3:
    liveins: $r0, $r1, $r3, $r8, $r9, $r12

    renamable $r4, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
    $r10 = tMOVr $r12, 14 /* CC::al */, $noreg
    $r2 = tMOVr $r3, 14 /* CC::al */, $noreg
    t2B %bb.4, 14 /* CC::al */, $noreg

  bb.7:
    successors: %bb.8(0x04000000), %bb.4(0x7c000000)
    liveins: $r0, $r1, $r2, $r3, $r4, $r8, $r9, $r10, $r12

    renamable $r4, dead $cpsr = nuw nsw tADDi8 killed renamable $r4, 1, 14 /* CC::al */, $noreg
    renamable $r2, dead $cpsr = tADDi8 killed renamable $r2, 1, 14 /* CC::al */, $noreg
    tCMPr renamable $r4, renamable $r1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    renamable $r10 = t2ADDri killed renamable $r10, 1, 14 /* CC::al */, $noreg, $noreg
    t2Bcc %bb.8, 0 /* CC::eq */, killed $cpsr

  bb.4:
    successors: %bb.5(0x50000000), %bb.7(0x30000000)
    liveins: $r0, $r1, $r2, $r3, $r4, $r8, $r9, $r10, $r12

    renamable $lr = t2WhileLoopStartLR killed renamable $r9, %bb.7, implicit-def dead $cpsr

  bb.5:
    liveins: $r0, $r1, $r2, $r3, $r4, $r8, $r9, $r10, $r12

    $r5 = tMOVr $r10, 14 /* CC::al */, $noreg
    $r6 = tMOVr $r2, 14 /* CC::al */, $noreg
    t2B %bb.6, 14 /* CC::al */, $noreg

  bb.6:
    successors: %bb.6(0x7c000000), %bb.7(0x04000000)
    liveins: $lr, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r8, $r9, $r10, $r12

    tSTRi killed $r0, $r1, 0, 14 /* CC::al */, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.6, implicit-def dead $cpsr
    t2B %bb.7, 14 /* CC::al */, $noreg

  bb.9:
    $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $pc

...
---
name:            backwards_branch_forwards_wls
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: backwards_branch_forwards_wls
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 11, 8, implicit-def $itstate
  ; CHECK-NEXT:   frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.2(0x40000000), %bb.5(0x40000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2WhileLoopStartLR killed renamable $r0, %bb.2, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.5, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   successors: %bb.4(0x40000000), %bb.3(0x40000000)
  ; CHECK-NEXT:   liveins: $lr, $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2WhileLoopStartLR killed renamable $r0, %bb.3, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.4, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4:
  ; CHECK-NEXT:   successors: %bb.3(0x40000000), %bb.4(0x40000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.4, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.3, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.5:
  ; CHECK-NEXT:   successors: %bb.5(0x40000000), %bb.2(0x40000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.5, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.2, 14 /* CC::al */, $noreg
  bb.0:
    successors: %bb.2
    liveins: $r0, $r1, $r2, $lr

    tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 11, 8, implicit-def $itstate
    frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate

  bb.2:
    successors: %bb.3, %bb.5
    liveins: $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.3, implicit-def dead $cpsr
    t2B %bb.5, 14 /* CC::al */, $noreg

  bb.1:
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.3:
    successors: %bb.4, %bb.1
    liveins: $lr, $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.1, implicit-def dead $cpsr
    t2B %bb.4, 14 /* CC::al */, $noreg

  bb.4:
    successors: %bb.1, %bb.4
    liveins: $lr, $r1, $r2

    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.4, implicit-def dead $cpsr
    t2B %bb.1, 14 /* CC::al */, $noreg

  bb.5:
    successors: %bb.5, %bb.3
    liveins: $lr, $r1, $r2

    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.5, implicit-def dead $cpsr
    t2B %bb.3, 14 /* CC::al */, $noreg

...
---
name:            multiple_predecessors
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: multiple_predecessors
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.3(0x55555555), %bb.2(0x2aaaaaab)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $r7, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION def_cfa_offset 8
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $r7, -8
  ; CHECK-NEXT:   $sp = frame-setup tSUBspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION def_cfa_offset 12
  ; CHECK-NEXT:   tCMPi8 killed renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 0, 8, implicit-def $itstate
  ; CHECK-NEXT:   tCMPi8 killed renamable $r1, 8, 0 /* CC::eq */, killed $cpsr, implicit-def $cpsr, implicit killed $itstate
  ; CHECK-NEXT:   t2Bcc %bb.2, 0 /* CC::eq */, killed $cpsr
  ; CHECK-NEXT:   t2B %bb.3, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.6(0x40000000), %bb.3(0x40000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2WhileLoopStartLR killed renamable $r2, %bb.3, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.6, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   successors: %bb.4(0x40000000), %bb.3(0x40000000)
  ; CHECK-NEXT:   liveins: $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $lr = t2WhileLoopStartLR renamable $r2, %bb.3, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.4, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   $sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc, implicit undef $r0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4:
  ; CHECK-NEXT:   successors: %bb.5(0x80000000)
  ; CHECK-NEXT:   liveins: $lr, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $r1 = t2ADDri $sp, 2, 14 /* CC::al */, $noreg, $noreg
  ; CHECK-NEXT:   renamable $r0 = IMPLICIT_DEF
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.5:
  ; CHECK-NEXT:   successors: %bb.5(0x7c000000), %bb.1(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r0, $r1, $r2, $r3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $q0, renamable $r0 = MVE_VIWDUPu16 killed renamable $r0, renamable $r3, 1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK-NEXT:   MVE_VSTRH16_rq undef renamable $q0, renamable $r1, killed renamable $q0, 0, $noreg, $noreg
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.5, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.1, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.6:
  ; CHECK-NEXT:   successors: %bb.7(0x80000000)
  ; CHECK-NEXT:   liveins: $lr, $r0, $r1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.7:
  ; CHECK-NEXT:   successors: %bb.7(0x7c000000), %bb.3(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r0, $r1, $r3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $q0, renamable $r0 = MVE_VIWDUPu16 killed renamable $r0, renamable $r3, 2, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK-NEXT:   MVE_VSTRH16_rq undef renamable $q0, renamable $r1, killed renamable $q0, 0, $noreg, $noreg
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.7, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.3, 14 /* CC::al */, $noreg
  bb.0:
    successors: %bb.7(0x80000000), %bb.1(0x40000000)
    liveins: $r0, $r1, $r2, $r7, $lr

    frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp
    frame-setup CFI_INSTRUCTION def_cfa_offset 8
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r7, -8
    $sp = frame-setup tSUBspi $sp, 1, 14 /* CC::al */, $noreg
    frame-setup CFI_INSTRUCTION def_cfa_offset 12
    tCMPi8 killed renamable $r0, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 0, 8, implicit-def $itstate
    tCMPi8 killed renamable $r1, 8, 0 /* CC::eq */, killed $cpsr, implicit-def $cpsr, implicit killed $itstate
    t2Bcc %bb.1, 0 /* CC::eq */, killed $cpsr

  bb.7:
    $sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc, implicit undef $r0

  bb.1:
    successors: %bb.3(0x40000000), %bb.7(0x40000000)
    liveins: $r2

    renamable $lr = t2WhileLoopStartLR renamable $r2, %bb.7, implicit-def dead $cpsr
    t2B %bb.3, 14 /* CC::al */, $noreg

  bb.3:
    successors: %bb.4(0x80000000)
    liveins: $lr, $r2

    renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
    renamable $r1 = t2ADDri $sp, 2, 14 /* CC::al */, $noreg, $noreg
    renamable $r0 = IMPLICIT_DEF

  bb.4:
    successors: %bb.4(0x7c000000), %bb.2(0x04000000)
    liveins: $lr, $r0, $r1, $r2, $r3

    renamable $q0, renamable $r0 = MVE_VIWDUPu16 killed renamable $r0, renamable $r3, 1, 0, $noreg, $noreg, undef renamable $q0
    MVE_VSTRH16_rq undef renamable $q0, renamable $r1, killed renamable $q0, 0, $noreg, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.4, implicit-def dead $cpsr
    t2B %bb.2, 14 /* CC::al */, $noreg

  bb.2:
    successors: %bb.5(0x40000000), %bb.7(0x40000000)
    liveins: $r0, $r1, $r2

    renamable $lr = t2WhileLoopStartLR killed renamable $r2, %bb.7, implicit-def dead $cpsr
    t2B %bb.5, 14 /* CC::al */, $noreg

  bb.5:
    successors: %bb.6(0x80000000)
    liveins: $lr, $r0, $r1

    renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg

  bb.6:
    successors: %bb.6(0x7c000000), %bb.7(0x04000000)
    liveins: $lr, $r0, $r1, $r3

    renamable $q0, renamable $r0 = MVE_VIWDUPu16 killed renamable $r0, renamable $r3, 2, 0, $noreg, $noreg, undef renamable $q0
    MVE_VSTRH16_rq undef renamable $q0, renamable $r1, killed renamable $q0, 0, $noreg, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.6, implicit-def dead $cpsr
    t2B %bb.7, 14 /* CC::al */, $noreg

...
---
name:            jump_table
tracksRegLiveness: true
jumpTable:
  kind:            inline
  entries:
    - id:              0
      blocks:          [ '%bb.3', '%bb.1' ]
body:             |
  ; CHECK-LABEL: name: jump_table
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2, $lr
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK-NEXT:   t2IT 11, 8, implicit-def $itstate
  ; CHECK-NEXT:   frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
  ; CHECK-NEXT:   liveins: $r0, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $lr = t2WhileLoopStartLR killed renamable $r0, %bb.2, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.4, 14 /* CC::al */, $noreg
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3:
  ; CHECK-NEXT:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK-NEXT:   liveins: $r0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r5 = t2LEApcrelJT %jump-table.0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $r5 = t2ADDrs killed renamable $r5, renamable $r0, 18, 14 /* CC::al */, $noreg, $noreg
  ; CHECK-NEXT:   t2BR_JT killed renamable $r5, killed renamable $r0, %jump-table.0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4:
  ; CHECK-NEXT:   successors: %bb.4(0x7c000000), %bb.2(0x04000000)
  ; CHECK-NEXT:   liveins: $lr, $r1, $r2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   renamable $r0 = tLDRi renamable $r2, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   tSTRi killed renamable $r0, renamable $r1, 0, 14 /* CC::al */, $noreg
  ; CHECK-NEXT:   renamable $lr = t2LoopEndDec killed renamable $lr, %bb.4, implicit-def dead $cpsr
  ; CHECK-NEXT:   t2B %bb.2, 14 /* CC::al */, $noreg
  bb.0:
    successors: %bb.2(0x80000000)
    liveins: $r0, $r1, $r2, $lr

    tCMPi8 renamable $r0, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2IT 11, 8, implicit-def $itstate
    frame-destroy tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r7, def $pc, implicit killed $itstate

  bb.1:
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.2:
    successors: %bb.3(0x7c000000), %bb.1(0x04000000)
    liveins: $r0

    renamable $r5 = t2LEApcrelJT %jump-table.0, 14 /* CC::al */, $noreg
    renamable $r5 = t2ADDrs killed renamable $r5, renamable $r0, 18, 14 /* CC::al */, $noreg, $noreg
    t2BR_JT killed renamable $r5, killed renamable $r0, %jump-table.0

  bb.3:
    successors: %bb.4(0x80000000)
    liveins: $r0, $r1, $r2

    $lr = t2WhileLoopStartLR killed renamable $r0, %bb.1, implicit-def dead $cpsr

  bb.4:
    successors: %bb.4(0x7c000000), %bb.1(0x04000000)
    liveins: $lr, $r1, $r2

    renamable $r0 = tLDRi renamable $r2, 0, 14 /* CC::al */, $noreg
    tSTRi killed renamable $r0, renamable $r1, 0, 14 /* CC::al */, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.4, implicit-def dead $cpsr
    t2B %bb.1, 14 /* CC::al */, $noreg

...