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; 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
}
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