| ; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s |
| ; PR9420 |
| |
| ; Note that the crash in PR9420 test is sensitive to the ordering of |
| ; the transformations done by SimplifyCFG, so this test is likely to rot |
| ; quickly. |
| |
| define noalias ptr @func_29() nounwind { |
| ; CHECK: entry: |
| ; CHECK-NEXT: unreachable |
| entry: |
| br label %for.cond |
| |
| for.cond: ; preds = %for.inc38, %entry |
| %p_34.addr.0 = phi i16 [ 1, %entry ], [ %conv40, %for.inc38 ] |
| br label %for.cond1 |
| |
| for.cond1: ; preds = %for.inc29, %for.cond |
| %p_32.addr.0 = phi i1 [ true, %for.cond ], [ true, %for.inc29 ] |
| br i1 %p_32.addr.0, label %for.body8, label %for.inc38 |
| |
| for.body8: ; preds = %for.cond1 |
| unreachable |
| |
| for.inc29: ; preds = %for.cond17 |
| br label %for.cond1 |
| |
| for.inc38: ; preds = %for.end32 |
| %conv40 = add i16 %p_34.addr.0, 1 |
| br label %for.cond |
| } |