# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
# RUN: llc %s --start-before=shrink-wrap --stop-after=prologepilog -o - | FileCheck %s
--- |
target triple = "aarch64-linux"
define void @f(i32 %n) #0 {
entry:
%a = alloca i8, i32 150000, align 8
%c0 = icmp sle i32 %n, 1
br i1 %c0, label %if.then1, label %exit
if.then1: ; preds = %entry
%0 = icmp sle i32 %n, 1
%v = select i1 %0, i32 0, i32 1
call void @g(ptr %a, i32 %v)
br label %exit
exit: ; preds = %if.then1, %entry
ret void
}
declare void @g(...)
attributes #0 = { nounwind "probe-stack"="inline-asm" "stack-probe-size"="4096" }
...
---
name: f
alignment: 4
tracksRegLiveness: true
liveins:
- { reg: '$w0', virtual-reg: '' }
frameInfo:
adjustsStack: true
localFrameSize: 150000
stack:
- { id: 0, name: a, type: default, offset: 0, size: 150000, alignment: 8,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
local-offset: -150000, 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: $w0, $lr
; 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: $x9 = frame-setup SUBXri $sp, 36, 12
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3.entry:
; CHECK-NEXT: successors: %bb.4(0x40000000), %bb.3(0x40000000)
; CHECK-NEXT: liveins: $w0, $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(0x40000000), %bb.2(0x40000000)
; CHECK-NEXT: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 2544, 0
; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0
; CHECK-NEXT: dead $wzr = SUBSWri killed renamable $w0, 1, 0, implicit-def $nzcv
; CHECK-NEXT: Bcc 12, %bb.2, implicit $nzcv
; CHECK-NEXT: B %bb.1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.if.then1:
; CHECK-NEXT: successors: %bb.2(0x80000000)
; CHECK-NEXT: liveins: $nzcv
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w1 = CSINCWr $wzr, $wzr, 13, implicit killed $nzcv
; CHECK-NEXT: $x0 = ADDXri $sp, 0, 0
; CHECK-NEXT: BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit $w1, implicit-def $sp
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.exit:
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 36, 12
; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 2544, 0
; CHECK-NEXT: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1)
; CHECK-NEXT: RET_ReallyLR
bb.0.entry:
successors: %bb.1(0x40000000), %bb.2(0x40000000)
liveins: $w0
dead $wzr = SUBSWri killed renamable $w0, 1, 0, implicit-def $nzcv
Bcc 12, %bb.2, implicit $nzcv
B %bb.1
bb.1.if.then1:
successors: %bb.2(0x80000000)
liveins: $nzcv
renamable $w1 = CSINCWr $wzr, $wzr, 13, implicit killed $nzcv
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
$x0 = ADDXri %stack.0.a, 0, 0
BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit $w1, implicit-def $sp
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
bb.2.exit:
RET_ReallyLR
...
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