# 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: Yes
# CHECK-NEXT: EpilogueOffset: 1
# CHECK-NEXT: ByteCodeLength: 4
# 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: Epilogue [
# CHECK-NEXT: 0xe1 ; mov sp, fp
# CHECK-NEXT: 0x81 ; ldp x29, x30, [sp], #16
# CHECK-NEXT: 0xe4 ; end
# 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 (s64) into %stack.7), (store (s64) 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 (s64) 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 (s64) 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
...
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