| ; This testcase exposed a problem with the loop identification pass (LoopInfo). |
| ; Basically, it was incorrectly calculating the loop nesting information. |
| ; |
| ; RUN: opt < %s -loopsimplify |
| |
| define i32 @yylex() { |
| br label %loopentry.0 |
| loopentry.0: ; preds = %else.4, %0 |
| br label %loopexit.2 |
| loopexit.2: ; preds = %else.4, %loopexit.2, %loopentry.0 |
| br i1 false, label %loopexit.2, label %else.4 |
| yy_find_action: ; preds = %else.4 |
| br label %else.4 |
| else.4: ; preds = %yy_find_action, %loopexit.2 |
| switch i32 0, label %loopexit.2 [ |
| i32 2, label %yy_find_action |
| i32 0, label %loopentry.0 |
| ] |
| } |
| |