|  | ; RUN: opt -S -loop-simplify -disable-output -verify-loop-info -verify-dom-info < %s | 
|  | ; PR5235 | 
|  |  | 
|  | ; When loopsimplify inserts a preheader for this loop, it should add the new | 
|  | ; block to the enclosing loop and not get confused by the unreachable | 
|  | ; bogus loop entry. | 
|  |  | 
|  | define void @is_extract_cab() nounwind { | 
|  | entry: | 
|  | br label %header | 
|  |  | 
|  | header:                                       ; preds = %if.end206, %cond.end66, %if.end23 | 
|  | br label %while.body115 | 
|  |  | 
|  | while.body115:                                    ; preds = %9, %if.end192, %if.end101 | 
|  | br i1 undef, label %header, label %while.body115 | 
|  |  | 
|  | foo: | 
|  | br label %while.body115 | 
|  | } |