52 lines
1.4 KiB
Plaintext
52 lines
1.4 KiB
Plaintext
|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
|
||
|
|
# RUN: llc -mtriple=thumb-apple-ios -run-pass=if-converter %s -o - | FileCheck %s
|
||
|
|
|
||
|
|
# bb.2 has no successors, presumably because __stack_chk_fail doesn't return,
|
||
|
|
# so there should be no edge from bb.2 to bb.3.
|
||
|
|
# Nevertheless, IfConversion treats bb.1, bb.2, bb.3 as a triangle and
|
||
|
|
# inserts a predicated copy of bb.2 in bb.1.
|
||
|
|
|
||
|
|
# This caused r302876 to die with a failed assertion.
|
||
|
|
|
||
|
|
--- |
|
||
|
|
declare void @__stack_chk_fail()
|
||
|
|
declare void @bar()
|
||
|
|
|
||
|
|
define void @foo() {
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: foo
|
||
|
|
body: |
|
||
|
|
; CHECK-LABEL: name: foo
|
||
|
|
; CHECK: bb.0:
|
||
|
|
; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
|
||
|
|
; CHECK: tBcc %bb.2, 1 /* CC::ne */, $cpsr
|
||
|
|
; CHECK: bb.1:
|
||
|
|
; CHECK: successors:
|
||
|
|
; CHECK: tBL 14 /* CC::al */, $cpsr, @__stack_chk_fail
|
||
|
|
; CHECK: bb.2:
|
||
|
|
; CHECK: tBL 1 /* CC::ne */, $cpsr, @__stack_chk_fail
|
||
|
|
; CHECK: $sp = tADDspi $sp, 2, 14 /* CC::al */, $noreg
|
||
|
|
; CHECK: $sp = tADDspi $sp, 2, 14 /* CC::al */, $noreg
|
||
|
|
; CHECK: tTAILJMPdND @bar, 14 /* CC::al */, $cpsr
|
||
|
|
|
||
|
|
bb.0:
|
||
|
|
tBcc %bb.1, 1, $cpsr
|
||
|
|
tB %bb.2, 14, $noreg
|
||
|
|
|
||
|
|
bb.1:
|
||
|
|
tBcc %bb.3, 0, $cpsr
|
||
|
|
|
||
|
|
bb.2:
|
||
|
|
successors:
|
||
|
|
tBL 14, $cpsr, @__stack_chk_fail
|
||
|
|
|
||
|
|
bb.3:
|
||
|
|
successors:
|
||
|
|
$sp = tADDspi $sp, 2, 14, _
|
||
|
|
$sp = tADDspi $sp, 2, 14, _
|
||
|
|
tTAILJMPdND @bar, 14, $cpsr
|
||
|
|
...
|