| ; RUN: opt < %s -loop-rotate -verify-dom-info -verify-loop-info -disable-output |
| ; RUN: opt < %s -loop-rotate -verify-dom-info -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output |
| |
| define void @func() { |
| bb0: |
| br label %bb1 |
| |
| bb1: ; preds = %bb4, %bb0 |
| %0 = phi i16 [ %2, %bb4 ], [ 0, %bb0 ] |
| %1 = icmp sle i16 %0, 2 |
| br i1 %1, label %bb2, label %bb5 |
| |
| bb2: ; preds = %bb1 |
| br i1 undef, label %bb6, label %bb4 |
| |
| bb3: ; No predecessors! |
| br label %bb6 |
| |
| bb4: ; preds = %bb2 |
| %2 = add i16 undef, 1 |
| br label %bb1 |
| |
| bb5: ; preds = %bb1 |
| br label %bb6 |
| |
| bb6: ; preds = %bb5, %bb3, %bb2 |
| unreachable |
| } |