1; RUN: opt < %s -loop-rotate -verify-dom-info -verify-loop-info -disable-output 2; RUN: opt < %s -loop-rotate -verify-dom-info -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output 3 4define void @func() { 5bb0: 6 br label %bb1 7 8bb1: ; preds = %bb4, %bb0 9 %0 = phi i16 [ %2, %bb4 ], [ 0, %bb0 ] 10 %1 = icmp sle i16 %0, 2 11 br i1 %1, label %bb2, label %bb5 12 13bb2: ; preds = %bb1 14 br i1 undef, label %bb6, label %bb4 15 16bb3: ; No predecessors! 17 br label %bb6 18 19bb4: ; preds = %bb2 20 %2 = add i16 undef, 1 21 br label %bb1 22 23bb5: ; preds = %bb1 24 br label %bb6 25 26bb6: ; preds = %bb5, %bb3, %bb2 27 unreachable 28} 29