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

--- |
  define void @combine_previous() {
  while.end6:
    ret void
  }

  define void @combine_middle() {
  while.end6:
    ret void
  }

  define void @combine_last() {
  while.end6:
    ret void
  }

  define void @combine_kill_flags() {
  while.end6:
    ret void
  }

  define void @no_combination_diff_reg_value() {
  while.end6:
    ret void
  }

  define void @no_combination_vcmp_already_merged() {
  while.end6:
    ret void
  }

...
---
name:            combine_previous
alignment:       8
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: '$r2', virtual-reg: '' }
frameInfo:
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
debugValueSubstitutions: []
constants:
  - id:              0
    value:           float 0xC7EFFFFFE0000000
    alignment:       4
    isTargetSpecific: false
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: combine_previous
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $r0, $r1
  ; CHECK:   renamable $q0 = MVE_VDUP32 renamable $r1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK:   $lr = MVE_DLSTP_32 killed renamable $r1
  ; CHECK: bb.1 (align 4):
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $r0
  ; CHECK:   renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   renamable $q0 = MVE_VORR renamable $q1, renamable $q1, 0, $noreg, $noreg, killed renamable $q0
  ; CHECK:   MVE_VPTv4f32 8, renamable $q1, renamable $q0, 12, implicit-def $vpr
  ; CHECK:   renamable $q0 = MVE_VORR killed renamable $q1, killed renamable $q1, 1, killed renamable $vpr, $noreg, killed renamable $q0
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK: bb.3 (align 4):
  ; CHECK:   CONSTPOOL_ENTRY 0, %const.0, 4
  bb.0:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r3, dead $cpsr = nuw nsw tADDi3 renamable $r1, 3, 14 /* CC::al */, $noreg
    renamable $q0 = MVE_VDUP32 killed renamable $r1, 0, $noreg, $noreg, undef renamable $q0
    renamable $r3 = t2ANDri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $lr = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
    renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
    $lr = t2DoLoopStart renamable $lr

  bb.6 (align 4):
    successors: %bb.6(0x7c000000), %bb.8(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2

    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $vpr = MVE_VCTP32 renamable $r1, 0, $noreg, $noreg
    renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    MVE_VPST 4, implicit $vpr
    renamable $q0 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, renamable $q0
    renamable $vpr = MVE_VCMPf32 renamable $q1, renamable $q0, 12, 1, killed renamable $vpr, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $q0 = MVE_VORR killed renamable $q1, renamable $q1, 1, killed renamable $vpr, $noreg, killed renamable $q0
    t2LoopEnd renamable $lr, %bb.6, implicit-def dead $cpsr
    tB %bb.8, 14 /* CC::al */, $noreg

  bb.8:
    liveins: $r2, $r12, $q0
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.9 (align 4):
    CONSTPOOL_ENTRY 0, %const.0, 4

...
---
name:            combine_middle
alignment:       8
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: '$r2', virtual-reg: '' }
frameInfo:
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
debugValueSubstitutions: []
constants:
  - id:              0
    value:           float 0xC7EFFFFFE0000000
    alignment:       4
    isTargetSpecific: false
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: combine_middle
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $q2, $r0, $r1
  ; CHECK:   renamable $q0 = MVE_VDUP32 renamable $r1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK:   $lr = MVE_DLSTP_32 killed renamable $r1
  ; CHECK: bb.1 (align 4):
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $q2, $r0
  ; CHECK:   renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 0, $noreg, $noreg, killed renamable $q2
  ; CHECK:   MVE_VPTv4f32 8, renamable $q1, renamable $q0, 12, implicit-def $vpr
  ; CHECK:   renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, killed renamable $q2
  ; CHECK:   MVE_VPST 8, implicit $vpr
  ; CHECK:   dead renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, killed renamable $vpr, $noreg, killed renamable $q1
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK: bb.3 (align 4):
  ; CHECK:   CONSTPOOL_ENTRY 0, %const.0, 4
  bb.0:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r3, dead $cpsr = nuw nsw tADDi3 renamable $r1, 3, 14 /* CC::al */, $noreg
    renamable $q0 = MVE_VDUP32 killed renamable $r1, 0, $noreg, $noreg, undef renamable $q0
    renamable $r3 = t2ANDri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $lr = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
    renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
    $lr = t2DoLoopStart renamable $lr

  bb.6 (align 4):
    successors: %bb.6(0x7c000000), %bb.8(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2, $q2

    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $vpr = MVE_VCTP32 renamable $r1, 0, $noreg, $noreg
    renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
    MVE_VPST 2, implicit $vpr
    renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, killed renamable $q2
    renamable $vpr = MVE_VCMPf32 renamable $q1, renamable $q0, 12, 1, killed renamable $vpr, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, killed renamable $q2
    MVE_VPST 8, implicit $vpr
    renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, renamable $vpr, $noreg, renamable $q1
    t2LoopEnd renamable $lr, %bb.6, implicit-def dead $cpsr
    tB %bb.8, 14 /* CC::al */, $noreg

  bb.8:
    liveins: $r2, $r12, $q0
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.9 (align 4):
    CONSTPOOL_ENTRY 0, %const.0, 4

...
---
name:            combine_last
alignment:       8
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: '$r2', virtual-reg: '' }
frameInfo:
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
debugValueSubstitutions: []
constants:
  - id:              0
    value:           float 0xC7EFFFFFE0000000
    alignment:       4
    isTargetSpecific: false
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: combine_last
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $q2, $r0, $r1
  ; CHECK:   renamable $q0 = MVE_VDUP32 renamable $r1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK:   $lr = MVE_DLSTP_32 killed renamable $r1
  ; CHECK: bb.1 (align 4):
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $q2, $r0
  ; CHECK:   renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   MVE_VPTv4f32 8, renamable $q1, renamable $q0, 12, implicit-def $vpr
  ; CHECK:   renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, killed renamable $vpr, $noreg, killed renamable $q2
  ; CHECK:   MVE_VPTv4f32 8, renamable $q2, renamable $q1, 12, implicit-def $vpr
  ; CHECK:   dead renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, killed renamable $vpr, $noreg, killed renamable $q1
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK: bb.3 (align 4):
  ; CHECK:   CONSTPOOL_ENTRY 0, %const.0, 4
  bb.0:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r3, dead $cpsr = nuw nsw tADDi3 renamable $r1, 3, 14 /* CC::al */, $noreg
    renamable $q0 = MVE_VDUP32 killed renamable $r1, 0, $noreg, $noreg, undef renamable $q0
    renamable $r3 = t2ANDri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $lr = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
    renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
    $lr = t2DoLoopStart renamable $lr

  bb.6 (align 4):
    successors: %bb.6(0x7c000000), %bb.8(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2, $q2

    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $vpr = MVE_VCTP32 renamable $r1, 0, $noreg, $noreg
    renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    MVE_VPST 2, implicit $vpr
    renamable $vpr = MVE_VCMPf32 renamable $q1, renamable $q0, 12, 1, killed renamable $vpr, $noreg
    renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, killed renamable $q2
    renamable $vpr = MVE_VCMPf32 renamable $q2, renamable $q1, 12, 1, killed renamable $vpr, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, renamable $vpr, $noreg, renamable $q1
    t2LoopEnd renamable $lr, %bb.6, implicit-def dead $cpsr
    tB %bb.8, 14 /* CC::al */, $noreg

  bb.8:
    liveins: $r2, $r12, $q0
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.9 (align 4):
    CONSTPOOL_ENTRY 0, %const.0, 4

...
---
name:            combine_kill_flags
alignment:       8
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: '$r2', virtual-reg: '' }
frameInfo:
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
debugValueSubstitutions: []
constants:
  - id:              0
    value:           float 0xC7EFFFFFE0000000
    alignment:       4
    isTargetSpecific: false
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: combine_kill_flags
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $q2, $r0, $r1
  ; CHECK:   renamable $q0 = MVE_VDUP32 renamable $r1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK:   $lr = MVE_DLSTP_32 killed renamable $r1
  ; CHECK: bb.1 (align 4):
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $q2, $r0
  ; CHECK:   renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   renamable $q2 = MVE_VORR killed renamable $q2, renamable $q1, 0, $noreg, $noreg, killed renamable $q2
  ; CHECK:   MVE_VPTv4f32 8, renamable $q0, killed renamable $q1, 12, implicit-def $vpr
  ; CHECK:   renamable $q0 = MVE_VORR killed renamable $q0, killed renamable $q0, 1, killed renamable $vpr, $noreg, killed renamable $q0
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK: bb.3 (align 4):
  ; CHECK:   CONSTPOOL_ENTRY 0, %const.0, 4
  bb.0:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r3, dead $cpsr = nuw nsw tADDi3 renamable $r1, 3, 14 /* CC::al */, $noreg
    renamable $q0 = MVE_VDUP32 killed renamable $r1, 0, $noreg, $noreg, undef renamable $q0
    renamable $r3 = t2ANDri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $lr = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
    renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
    $lr = t2DoLoopStart renamable $lr

  bb.6 (align 4):
    successors: %bb.6(0x7c000000), %bb.8(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2, $q2

    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $vpr = MVE_VCTP32 renamable $r1, 0, $noreg, $noreg
    renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
    MVE_VPST 2, implicit $vpr
    renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    renamable $vpr = MVE_VCMPf32 renamable $q0, renamable $q1, 12, 1, killed renamable $vpr, $noreg
    renamable $q2 = MVE_VORR renamable $q2, killed renamable $q1, 0, $noreg, $noreg, killed renamable $q2
    MVE_VPST 8, implicit $vpr
    renamable $q0 = MVE_VORR renamable $q0, renamable $q0, 1, renamable $vpr, $noreg, killed renamable $q0
    t2LoopEnd renamable $lr, %bb.6, implicit-def dead $cpsr
    tB %bb.8, 14 /* CC::al */, $noreg

  bb.8:
    liveins: $r2, $r12, $q0
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.9 (align 4):
    CONSTPOOL_ENTRY 0, %const.0, 4

...
---
name:            no_combination_diff_reg_value
alignment:       8
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: '$r2', virtual-reg: '' }
frameInfo:
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
debugValueSubstitutions: []
constants:
  - id:              0
    value:           float 0xC7EFFFFFE0000000
    alignment:       4
    isTargetSpecific: false
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: no_combination_diff_reg_value
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $r0, $r1
  ; CHECK:   renamable $q0 = MVE_VDUP32 renamable $r1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK:   $lr = MVE_DLSTP_32 killed renamable $r1
  ; CHECK: bb.1 (align 4):
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $r0
  ; CHECK:   renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 0, $noreg, $noreg, killed renamable $q1
  ; CHECK:   renamable $vpr = MVE_VCMPf32 renamable $q1, renamable $q0, 12, 0, killed $noreg, $noreg
  ; CHECK:   renamable $q0 = MVE_VORR renamable $q1, renamable $q1, 0, $noreg, $noreg, killed renamable $q0
  ; CHECK:   MVE_VPST 8, implicit $vpr
  ; CHECK:   renamable $q0 = MVE_VORR killed renamable $q1, killed renamable $q1, 1, killed renamable $vpr, $noreg, killed renamable $q0
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK: bb.3 (align 4):
  ; CHECK:   CONSTPOOL_ENTRY 0, %const.0, 4
  bb.0:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r3, dead $cpsr = nuw nsw tADDi3 renamable $r1, 3, 14 /* CC::al */, $noreg
    renamable $q0 = MVE_VDUP32 killed renamable $r1, 0, $noreg, $noreg, undef renamable $q0
    renamable $r3 = t2ANDri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $lr = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
    renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
    $lr = t2DoLoopStart renamable $lr

  bb.6 (align 4):
    successors: %bb.6(0x7c000000), %bb.8(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2

    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $vpr = MVE_VCTP32 renamable $r1, 0, $noreg, $noreg
    renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    MVE_VPST 4, implicit $vpr
    renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, renamable $vpr, $noreg, renamable $q1
    renamable $vpr = MVE_VCMPf32 renamable $q1, renamable $q0, 12, 1, killed renamable $vpr, $noreg
    renamable $q0 = MVE_VORR renamable $q1, renamable $q1, 0, $noreg, $noreg, killed renamable $q0
    MVE_VPST 8, implicit $vpr
    renamable $q0 = MVE_VORR killed renamable $q1, renamable $q1, 1, killed renamable $vpr, $noreg, killed renamable $q0
    t2LoopEnd renamable $lr, %bb.6, implicit-def dead $cpsr
    tB %bb.8, 14 /* CC::al */, $noreg

  bb.8:
    liveins: $r2, $r12, $q0
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.9 (align 4):
    CONSTPOOL_ENTRY 0, %const.0, 4

...
---
name:            no_combination_vcmp_already_merged
alignment:       8
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: '$r2', virtual-reg: '' }
frameInfo:
fixedStack:      []
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
debugValueSubstitutions: []
constants:
  - id:              0
    value:           float 0xC7EFFFFFE0000000
    alignment:       4
    isTargetSpecific: false
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: no_combination_vcmp_already_merged
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $q2, $r0, $r1
  ; CHECK:   renamable $q0 = MVE_VDUP32 renamable $r1, 0, $noreg, $noreg, undef renamable $q0
  ; CHECK:   $lr = MVE_DLSTP_32 killed renamable $r1
  ; CHECK: bb.1 (align 4):
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $q2, $r0
  ; CHECK:   renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   MVE_VPTv4f32 8, renamable $q1, renamable $q0, 12, implicit-def $vpr
  ; CHECK:   renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, killed renamable $q2
  ; CHECK:   MVE_VPST 8, implicit $vpr
  ; CHECK:   dead renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, killed renamable $vpr, $noreg, killed renamable $q1
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
  ; CHECK: bb.3 (align 4):
  ; CHECK:   CONSTPOOL_ENTRY 0, %const.0, 4
  bb.0:
    successors: %bb.6(0x80000000)
    liveins: $r0, $r1, $r2

    renamable $r3, dead $cpsr = nuw nsw tADDi3 renamable $r1, 3, 14 /* CC::al */, $noreg
    renamable $q0 = MVE_VDUP32 killed renamable $r1, 0, $noreg, $noreg, undef renamable $q0
    renamable $r3 = t2ANDri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $lr = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
    renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
    renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $lr, 19, 14 /* CC::al */, $noreg, $noreg
    $lr = t2DoLoopStart renamable $lr

  bb.6 (align 4):
    successors: %bb.6(0x7c000000), %bb.8(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2, $q2

    renamable $lr = t2LoopDec killed renamable $lr, 1
    renamable $vpr = MVE_VCTP32 renamable $r1, 0, $noreg, $noreg
    renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    MVE_VPST 4, implicit $vpr
    renamable $vpr = MVE_VCMPf32 renamable $q1, renamable $q0, 12, 1, killed renamable $vpr, $noreg
    renamable $q2 = MVE_VORR renamable $q1, renamable $q1, 1, renamable $vpr, $noreg, killed renamable $q2
    MVE_VPST 8, implicit $vpr
    renamable $q1 = MVE_VORR killed renamable $q1, renamable $q0, 1, renamable $vpr, $noreg, renamable $q1
    t2LoopEnd renamable $lr, %bb.6, implicit-def dead $cpsr
    tB %bb.8, 14 /* CC::al */, $noreg

  bb.8:
    liveins: $r2, $r12, $q0
    frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc

  bb.9 (align 4):
    CONSTPOOL_ENTRY 0, %const.0, 4

...