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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
# RUN: llc -run-pass=prologepilog %s -o - | FileCheck %s
# Regression test for a crash when the probing instruction
# to replace is last in the block.
--- |
source_filename = "tt.ll"
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-linux"
declare i1 @g(ptr)
define void @f(ptr %out) #0 {
entry:
%p = alloca i32, i32 50000, align 4
br label %loop
loop: ; preds = %loop, %entry
%c = call i1 @g(ptr %p)
br i1 %c, label %loop, label %exit
exit: ; preds = %loop
ret void
}
attributes #0 = { uwtable "frame-pointer"="none" "probe-stack"="inline-asm" "target-features"="+sve" }
...
---
name: f
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
callsEHReturn: false
callsUnwindInit: false
hasEHContTarget: false
hasEHScopes: false
hasEHFunclets: false
isOutlined: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: true
registers: []
liveins: []
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: true
hasCalls: true
stackProtector: ''
functionContext: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
localFrameSize: 200000
savePoint: ''
restorePoint: ''
fixedStack: []
stack:
- { id: 0, name: p, type: default, offset: 0, size: 200000, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
local-offset: -200000, debug-info-variable: '', debug-info-expression: '',
debug-info-location: '' }
entry_values: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: f
; CHECK: bb.0.entry:
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: liveins: $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, 48, 12
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa $w9, 196624
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3.entry:
; CHECK-NEXT: successors: %bb.4(0x40000000), %bb.3(0x40000000)
; CHECK-NEXT: liveins: $x9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 1, 12
; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0
; CHECK-NEXT: $xzr = frame-setup SUBSXrx64 $sp, $x9, 24, implicit-def $nzcv
; CHECK-NEXT: frame-setup Bcc 1, %bb.3, implicit $nzcv
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.4.entry:
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_register $wsp
; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 3392, 0
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 200016
; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.loop:
; CHECK-NEXT: successors: %bb.1(0x7c000000), %bb.2(0x04000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $x0 = ADDXri $sp, 0, 0
; CHECK-NEXT: BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $w0
; CHECK-NEXT: TBNZW killed renamable $w0, 0, %bb.1
; CHECK-NEXT: B %bb.2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.exit:
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 48, 12
; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 3408
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 3392, 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_ReallyLR
bb.0.entry:
successors: %bb.1(0x80000000)
bb.1.loop:
successors: %bb.1(0x7c000000), %bb.2(0x04000000)
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
$x0 = ADDXri %stack.0.p, 0, 0
BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $w0
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
TBNZW killed renamable $w0, 0, %bb.1
B %bb.2
bb.2.exit:
RET_ReallyLR
...
|
