# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
# RUN: llc -run-pass=cfi-fixup %s -o - | FileCheck %s
--- |
source_filename = "cfi-fixup.ll"
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-linux"
define i32 @f(i32 %x) #0 {
entry:
%p = alloca i8, i32 30000, align 1
switch i32 %x, label %if.end7 [
i32 0, label %return
i32 1, label %if.then2
i32 2, label %if.then5
]
if.then2: ; preds = %entry
%call = tail call i32 @g1(i32 1)
%add = add nsw i32 %call, 1
br label %return
if.then5: ; preds = %entry
%call6 = tail call i32 @g0(i32 2)
%sub = sub nsw i32 1, %call6
br label %return
if.end7: ; preds = %entry
br label %return
return: ; preds = %if.end7, %if.then5, %if.then2, %entry
%retval.0 = phi i32 [ %add, %if.then2 ], [ %sub, %if.then5 ], [ 0, %if.end7 ], [ 1, %entry ]
ret i32 %retval.0
}
declare i32 @g1(i32)
declare i32 @g0(i32)
attributes #0 = { uwtable "probe-stack"="inline-asm" }
...
---
name: f
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
callsEHReturn: false
callsUnwindInit: false
hasEHCatchret: false
hasEHScopes: false
hasEHFunclets: false
isOutlined: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: true
registers: []
liveins:
- { reg: '$w0', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 30016
offsetAdjustment: 0
maxAlignment: 8
adjustsStack: true
hasCalls: true
stackProtector: ''
functionContext: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
localFrameSize: 30000
savePoint: ''
restorePoint: ''
fixedStack: []
stack:
- { id: 0, name: p, type: default, offset: -30016, size: 30000, alignment: 1,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
local-offset: -30000, debug-info-variable: '', debug-info-expression: '',
debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 2, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
entry_values: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo:
hasRedZone: false
body: |
; CHECK-LABEL: name: f
; CHECK: bb.0.entry:
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: liveins: $w0, $lr, $fp
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -2 :: (store (s64) into %stack.2), (store (s64) into %stack.1)
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 16
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w30, -8
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w29, -16
; CHECK-NEXT: $x9 = frame-setup SUBXri $sp, 7, 12
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa $w9, 28688
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.entry:
; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK-NEXT: liveins: $x9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 1, 12
; CHECK-NEXT: $xzr = frame-setup SUBSXrx64 $sp, $x9, 24, implicit-def $nzcv
; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0
; CHECK-NEXT: frame-setup Bcc 1, %bb.1, implicit killed $nzcv
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.entry:
; CHECK-NEXT: successors: %bb.6(0x20000000), %bb.3(0x60000000)
; CHECK-NEXT: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_register $wsp
; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 1328, 0
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 30016
; CHECK-NEXT: CFI_INSTRUCTION remember_state
; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0
; CHECK-NEXT: CBZW renamable $w0, %bb.6
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3.entry:
; CHECK-NEXT: successors: %bb.7(0x2aaaaaab), %bb.4(0x55555555)
; CHECK-NEXT: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: dead $wzr = SUBSWri renamable $w0, 2, 0, implicit-def $nzcv
; CHECK-NEXT: Bcc 0, %bb.7, implicit killed $nzcv
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.4.entry:
; CHECK-NEXT: successors: %bb.5(0x40000000), %bb.8(0x40000000)
; CHECK-NEXT: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: dead $wzr = SUBSWri renamable $w0, 1, 0, implicit-def $nzcv
; CHECK-NEXT: Bcc 1, %bb.8, implicit killed $nzcv
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.5.if.then2:
; CHECK-NEXT: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: BL @g1, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0
; CHECK-NEXT: renamable $w0 = nsw ADDWri killed renamable $w0, 1, 0
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 7, 12
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 1328, 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 16
; CHECK-NEXT: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w30
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w29
; CHECK-NEXT: RET undef $lr, implicit killed $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.6:
; CHECK-NEXT: CFI_INSTRUCTION restore_state
; CHECK-NEXT: CFI_INSTRUCTION remember_state
; CHECK-NEXT: renamable $w0 = MOVZWi 1, 0
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 7, 12
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 1328, 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 16
; CHECK-NEXT: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w30
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w29
; CHECK-NEXT: RET undef $lr, implicit killed $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.7.if.then5:
; CHECK-NEXT: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: CFI_INSTRUCTION restore_state
; CHECK-NEXT: CFI_INSTRUCTION remember_state
; CHECK-NEXT: BL @g0, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0
; CHECK-NEXT: renamable $w8 = MOVZWi 1, 0
; CHECK-NEXT: $w0 = SUBWrs killed renamable $w8, killed renamable $w0, 0
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 7, 12
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 1328, 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 16
; CHECK-NEXT: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w30
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w29
; CHECK-NEXT: RET undef $lr, implicit killed $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.8.if.end7:
; CHECK-NEXT: CFI_INSTRUCTION restore_state
; CHECK-NEXT: $w0 = ORRWrs $wzr, $wzr, 0
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 7, 12
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 1328, 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 16
; CHECK-NEXT: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 0
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w30
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w29
; CHECK-NEXT: RET undef $lr, implicit killed $w0
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $w0, $lr, $fp
early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -2 :: (store (s64) into %stack.2), (store (s64) into %stack.1)
frame-setup CFI_INSTRUCTION def_cfa_offset 16
frame-setup CFI_INSTRUCTION offset $w30, -8
frame-setup CFI_INSTRUCTION offset $w29, -16
$x9 = frame-setup SUBXri $sp, 7, 12
frame-setup CFI_INSTRUCTION def_cfa $w9, 28688
bb.1.entry:
successors: %bb.2(0x40000000), %bb.1(0x40000000)
liveins: $x9
$sp = frame-setup SUBXri $sp, 1, 12
$xzr = frame-setup SUBSXrx64 $sp, $x9, 24, implicit-def $nzcv
frame-setup STRXui $xzr, $sp, 0
frame-setup Bcc 1, %bb.1, implicit killed $nzcv
bb.2.entry:
successors: %bb.6(0x20000000), %bb.3(0x60000000)
liveins: $w0
frame-setup CFI_INSTRUCTION def_cfa_register $wsp
$sp = frame-setup SUBXri $sp, 1328, 0
frame-setup CFI_INSTRUCTION def_cfa_offset 30016
frame-setup STRXui $xzr, $sp, 0
CBZW renamable $w0, %bb.6
bb.3.entry:
successors: %bb.7(0x2aaaaaab), %bb.4(0x55555555)
liveins: $w0
dead $wzr = SUBSWri renamable $w0, 2, 0, implicit-def $nzcv
Bcc 0, %bb.7, implicit killed $nzcv
bb.4.entry:
successors: %bb.5(0x40000000), %bb.8(0x40000000)
liveins: $w0
dead $wzr = SUBSWri renamable $w0, 1, 0, implicit-def $nzcv
Bcc 1, %bb.8, implicit killed $nzcv
bb.5.if.then2:
liveins: $w0
BL @g1, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0
renamable $w0 = nsw ADDWri killed renamable $w0, 1, 0
$sp = frame-destroy ADDXri $sp, 7, 12
frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
$sp = frame-destroy ADDXri $sp, 1328, 0
frame-destroy CFI_INSTRUCTION def_cfa_offset 16
early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
frame-destroy CFI_INSTRUCTION def_cfa_offset 0
frame-destroy CFI_INSTRUCTION restore $w30
frame-destroy CFI_INSTRUCTION restore $w29
RET undef $lr, implicit killed $w0
bb.6:
renamable $w0 = MOVZWi 1, 0
$sp = frame-destroy ADDXri $sp, 7, 12
frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
$sp = frame-destroy ADDXri $sp, 1328, 0
frame-destroy CFI_INSTRUCTION def_cfa_offset 16
early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
frame-destroy CFI_INSTRUCTION def_cfa_offset 0
frame-destroy CFI_INSTRUCTION restore $w30
frame-destroy CFI_INSTRUCTION restore $w29
RET undef $lr, implicit killed $w0
bb.7.if.then5:
liveins: $w0
BL @g0, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0
renamable $w8 = MOVZWi 1, 0
$w0 = SUBWrs killed renamable $w8, killed renamable $w0, 0
$sp = frame-destroy ADDXri $sp, 7, 12
frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
$sp = frame-destroy ADDXri $sp, 1328, 0
frame-destroy CFI_INSTRUCTION def_cfa_offset 16
early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
frame-destroy CFI_INSTRUCTION def_cfa_offset 0
frame-destroy CFI_INSTRUCTION restore $w30
frame-destroy CFI_INSTRUCTION restore $w29
RET undef $lr, implicit killed $w0
bb.8.if.end7:
$w0 = ORRWrs $wzr, $wzr, 0
$sp = frame-destroy ADDXri $sp, 7, 12
frame-destroy CFI_INSTRUCTION def_cfa_offset 1344
$sp = frame-destroy ADDXri $sp, 1328, 0
frame-destroy CFI_INSTRUCTION def_cfa_offset 16
early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
frame-destroy CFI_INSTRUCTION def_cfa_offset 0
frame-destroy CFI_INSTRUCTION restore $w30
frame-destroy CFI_INSTRUCTION restore $w29
RET undef $lr, implicit killed $w0
...
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