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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv7m-none-eabi -run-pass=if-converter -o - %s | FileCheck %s

--- |
  define i32 @f1(i32 %x) #0 { ret i32 %x }
  define i32 @f2(i32 %x) #0 { ret i32 %x }
  define i32 @f3(i32 %x) #0 { ret i32 %x }
  declare i32 @fn(i32 %x) #0

  attributes #0 = { minsize nounwind optsize }

...
---
name:            f1
tracksRegLiveness: true
liveins:
  - { reg: '$r0', virtual-reg: '' }
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '$lr', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: name: f1
  ; CHECK: bb.0:
  ; CHECK:   liveins: $r0, $lr, $r7
  ; CHECK:   t2CMPri killed renamable $r0, 1, 14, $noreg, implicit-def $cpsr
  ; CHECK:   tBX_RET 1, killed $cpsr
  ; CHECK:   $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r7, killed $lr
  ; CHECK:   frame-setup CFI_INSTRUCTION def_cfa_offset 8
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r7, -8
  ; CHECK:   $r0 = t2MOVi 0, 14, $noreg, $noreg
  ; CHECK:   tBL 14, $noreg, @fn, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0
  ; CHECK:   $sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
  ; CHECK:   tBX_RET 14, $noreg
  bb.0:
    successors: %bb.1(0x40000000), %bb.2(0x40000000)
    liveins: $r0, $lr, $r7

    t2CMPri killed renamable $r0, 1, 14, $noreg, implicit-def $cpsr
    t2Bcc %bb.2, 1, killed $cpsr

  bb.1:
    liveins: $r7, $lr

    $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r7, killed $lr
    frame-setup CFI_INSTRUCTION def_cfa_offset 8
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r7, -8
    $r0 = t2MOVi 0, 14, $noreg, $noreg
    tBL 14, $noreg, @fn, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0
    $sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
    tBX_RET 14, $noreg

  bb.2:
    liveins: $lr, $r7

    tBX_RET 14, $noreg

...
---
name:            f2
tracksRegLiveness: true
liveins:
  - { reg: '$r0', virtual-reg: '' }
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '$lr', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: name: f2
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; CHECK:   liveins: $r0, $lr, $r7
  ; CHECK:   t2CMPri killed renamable $r0, 0, 14, $noreg, implicit-def $cpsr
  ; CHECK:   t2Bcc %bb.2, 1, killed $cpsr
  ; CHECK: bb.1:
  ; CHECK:   liveins: $r7, $lr
  ; CHECK:   $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r7, killed $lr
  ; CHECK:   frame-setup CFI_INSTRUCTION def_cfa_offset 8
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r7, -8
  ; CHECK:   $r0 = t2MOVi 0, 14, $noreg, $noreg
  ; CHECK:   tBL 14, $noreg, @fn, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0
  ; CHECK:   $sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
  ; CHECK:   tBX_RET 14, $noreg
  ; CHECK: bb.2:
  ; CHECK:   liveins: $lr, $r7
  ; CHECK:   tBX_RET 14, $noreg
  bb.0:
    successors: %bb.1(0x40000000), %bb.2(0x40000000)
    liveins: $r0, $lr, $r7

    t2CMPri killed renamable $r0, 0, 14, $noreg, implicit-def $cpsr
    t2Bcc %bb.2, 1, killed $cpsr

  bb.1:
    liveins: $r7, $lr

    $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r7, killed $lr
    frame-setup CFI_INSTRUCTION def_cfa_offset 8
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r7, -8
    $r0 = t2MOVi 0, 14, $noreg, $noreg
    tBL 14, $noreg, @fn, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0
    $sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
    tBX_RET 14, $noreg

  bb.2:
    liveins: $lr, $r7

    tBX_RET 14, $noreg

...
---
name:            f3
tracksRegLiveness: true
liveins:
  - { reg: '$r0', virtual-reg: '' }
stack:
  - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '$lr', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '$r7', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: name: f3
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; CHECK:   liveins: $r0, $lr, $r7
  ; CHECK:   t2CMPri killed renamable $r0, 0, 14, $noreg, implicit-def $cpsr
  ; CHECK:   $r1 = t2MOVi 0, 14, $noreg, $noreg
  ; CHECK:   t2Bcc %bb.2, 1, killed $cpsr
  ; CHECK: bb.1:
  ; CHECK:   liveins: $r7, $lr
  ; CHECK:   $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r7, killed $lr
  ; CHECK:   frame-setup CFI_INSTRUCTION def_cfa_offset 8
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $lr, -4
  ; CHECK:   frame-setup CFI_INSTRUCTION offset $r7, -8
  ; CHECK:   $r0 = t2MOVi 0, 14, $noreg, $noreg
  ; CHECK:   tBL 14, $noreg, @fn, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0
  ; CHECK:   $sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
  ; CHECK:   tBX_RET 14, $noreg
  ; CHECK: bb.2:
  ; CHECK:   liveins: $lr, $r7
  ; CHECK:   tBX_RET 14, $noreg
  bb.0:
    successors: %bb.1(0x40000000), %bb.2(0x40000000)
    liveins: $r0, $lr, $r7

    t2CMPri killed renamable $r0, 0, 14, $noreg, implicit-def $cpsr
    $r1 = t2MOVi 0, 14, $noreg, $noreg
    t2Bcc %bb.2, 1, killed $cpsr

  bb.1:
    liveins: $r7, $lr

    $sp = frame-setup t2STMDB_UPD $sp, 14, $noreg, killed $r7, killed $lr
    frame-setup CFI_INSTRUCTION def_cfa_offset 8
    frame-setup CFI_INSTRUCTION offset $lr, -4
    frame-setup CFI_INSTRUCTION offset $r7, -8
    $r0 = t2MOVi 0, 14, $noreg, $noreg
    tBL 14, $noreg, @fn, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0
    $sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
    tBX_RET 14, $noreg

  bb.2:
    liveins: $lr, $r7

    tBX_RET 14, $noreg

...