# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
# RUN:    -filetype=obj | llvm-readobj --unwind | FileCheck %s
# Check save_fplr_x, set_fp, alloc_s

# CHECK: 	ExceptionData {
# CHECK-NEXT:      FunctionLength: 92
# CHECK-NEXT:      Version: 0
# CHECK-NEXT:      ExceptionData: No
# CHECK-NEXT:      EpiloguePacked: No
# CHECK-NEXT:      EpilogueScopes: 1
# CHECK-NEXT:      ByteCodeLength: 8
# CHECK-NEXT:      Prologue [
# CHECK-NEXT:        0x02                ; sub sp, #32
# CHECK-NEXT:        0xe1                ; mov fp, sp
# CHECK-NEXT:        0x81                ; stp x29, x30, [sp, #-16]!
# CHECK-NEXT:        0xe4                ; end
# CHECK-NEXT:      ]
# CHECK-NEXT:      EpilogueScopes [
# CHECK-NEXT:        EpilogueScope {
# CHECK-NEXT:          StartOffset: 20
# CHECK-NEXT:          EpilogueStartIndex: 4
# CHECK-NEXT:          Opcodes [
# CHECK-NEXT:            0xe1                ; mov fp, sp
# CHECK-NEXT:            0x81                ; ldp x29, x30, [sp], #16
# CHECK-NEXT:            0xe4                ; end
# CHECK-NEXT:          ]
# CHECK-NEXT:        }
# CHECK-NEXT:      ]
# CHECK-NEXT:    }
...
---
name:            '?func@@YAHHHHH@Z'
alignment:       8
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
failedISel:      false
tracksRegLiveness: true
hasWinCFI: true
registers:
liveins:
  - { reg: '$w0', virtual-reg: '' }
  - { reg: '$w1', virtual-reg: '' }
  - { reg: '$w2', virtual-reg: '' }
  - { reg: '$w3', virtual-reg: '' }
frameInfo:
  isFrameAddressTaken: false
  isReturnAddressTaken: false
  hasStackMap:     false
  hasPatchPoint:   false
  stackSize:       48
  offsetAdjustment: 0
  maxAlignment:    8
  adjustsStack:    true
  hasCalls:        true
  stackProtector:  ''
  maxCallFrameSize: 0
  hasOpaqueSPAdjustment: false
  hasVAStart:      false
  hasMustTailInVarArgFunc: false
  localFrameSize:  24
  savePoint:       ''
  restorePoint:    ''
fixedStack:
stack:
  - { id: 0, name: '', type: default, offset: -20, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -4, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 1, name: '', type: default, offset: -24, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -8, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 2, name: '', type: default, offset: -28, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -12, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 3, name: '', type: default, offset: -32, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -16, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 4, name: '', type: default, offset: -40, size: 8, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -24, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 5, name: '', type: variable-sized, offset: -40,
      alignment: 1, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -24, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 6, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 7, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
      stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 8, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
      stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
constants:
body:             |
  bb.0.entry:
    liveins: $w0, $w1, $w2, $w3, $lr

    early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -2 :: (store 8 into %stack.7), (store 8 into %stack.8)
    frame-setup SEH_SaveFPLR_X -16
    $fp = frame-setup ADDXri $sp, 0, 0
    frame-setup SEH_SetFP
    $sp = frame-setup SUBXri $sp, 32, 0
    frame-setup SEH_StackAlloc 32
    frame-setup SEH_PrologEnd
    STURWi killed renamable $w3, $fp, -4
    STURWi killed renamable $w2, $fp, -8
    STURWi killed renamable $w1, $fp, -12
    STURWi killed renamable $w0, $fp, -16
    renamable $x8 = LDURSWi $fp, -16
    renamable $x8 = ADDXri killed renamable $x8, 15, 0
    renamable $x8 = UBFMXri killed renamable $x8, 4, 63
    $x15 = COPY renamable $x8
    STURXi killed $x8, $fp, -32 :: (store 8 into %stack.6)
    BL &__chkstk, csr_aarch64_stackprobe_windows, implicit-def dead $lr, implicit $sp, implicit killed $x15
    renamable $x8 = COPY $sp
    $x15 = LDURXi $fp, -32 :: (load 8 from %stack.6)
    renamable $x8 = SUBSXrs killed renamable $x8, killed renamable $x15, 4, implicit-def dead $nzcv
    $sp = COPY renamable $x8
    STURXi killed renamable $x8, $fp, -24
    renamable $x0 = LDURXi $fp, -24
    renamable $w1 = COPY $wzr
    $w0 = COPY killed renamable $w1
    frame-destroy SEH_EpilogStart
    $sp = frame-destroy ADDXri $fp, 0, 0
    frame-destroy SEH_SetFP
    early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2
    frame-destroy SEH_SaveFPLR_X -16
    frame-destroy SEH_EpilogEnd
    RET_ReallyLR implicit killed $w0

...