tut-simplify-cfg4-multiple-duplicate-cfg-updates.ll
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -tut-simplifycfg -tut-simplifycfg-version=v1 < %s -S -verify-dom-info | FileCheck %s
; RUN: opt -tut-simplifycfg -tut-simplifycfg-version=v2 < %s -S -verify-dom-info | FileCheck %s
; RUN: opt -tut-simplifycfg -tut-simplifycfg-version=v3 < %s -S -verify-dom-info | FileCheck %s
; Check that we do not crash when we remove edges multiple times in
; the DomTreeUpdater.
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: switch i8 undef, label [[IF_THEN_EPIL:%.*]] [
; CHECK-NEXT: i8 32, label [[FOR_INC_EPIL:%.*]]
; CHECK-NEXT: i8 46, label [[FOR_INC_EPIL]]
; CHECK-NEXT: i8 95, label [[FOR_INC_EPIL]]
; CHECK-NEXT: i8 45, label [[FOR_INC_EPIL]]
; CHECK-NEXT: i8 126, label [[FOR_INC_EPIL]]
; CHECK-NEXT: ]
; CHECK: if.then.epil:
; CHECK-NEXT: unreachable
; CHECK: for.inc.epil:
; CHECK-NEXT: ret void
;
entry:
br label %for.body.epil
for.body.epil: ; preds = %entry
switch i8 undef, label %if.then.epil [
i8 32, label %for.inc.epil
i8 46, label %for.inc.epil
i8 95, label %for.inc.epil
i8 45, label %for.inc.epil
i8 126, label %for.inc.epil
]
if.then.epil: ; preds = %for.body.epil
unreachable
for.inc.epil: ; preds = %for.body.epil, %for.body.epil, %for.body.epil, %for.body.epil, %for.body.epil
ret void
}