| ; RUN: opt < %s -lcssa -disable-output | |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" | |
| target triple = "x86_64-unknown-linux-gnu" | |
| ; PR28608 | |
| ; Check that we don't crash on this test. | |
| define void @foo() { | |
| entry: | |
| br label %bb1 | |
| bb1: | |
| br label %bb2 | |
| bb2: | |
| %x = phi i32 [ undef, %bb5 ], [ undef, %bb1 ] | |
| br i1 undef, label %bb3, label %bb6 | |
| bb3: | |
| br i1 undef, label %bb5, label %bb4 | |
| bb4: | |
| br label %bb6 | |
| bb5: | |
| br label %bb2 | |
| bb6: | |
| br label %bb1 | |
| exit: | |
| %y = add i32 0, %x | |
| ret void | |
| } | |