|  | ; RUN: opt < %s -loop-extract -disable-output | 
|  |  | 
|  | define void @maketree() { | 
|  | entry: | 
|  | br i1 false, label %no_exit.1, label %loopexit.0 | 
|  |  | 
|  | no_exit.1:              ; preds = %endif, %expandbox.entry, %entry | 
|  | br i1 false, label %endif, label %expandbox.entry | 
|  |  | 
|  | expandbox.entry:                ; preds = %no_exit.1 | 
|  | br i1 false, label %loopexit.1, label %no_exit.1 | 
|  |  | 
|  | endif:          ; preds = %no_exit.1 | 
|  | br i1 false, label %loopexit.1, label %no_exit.1 | 
|  |  | 
|  | loopexit.1:             ; preds = %endif, %expandbox.entry | 
|  | %ic.i.0.0.4 = phi i32 [ 0, %expandbox.entry ], [ 0, %endif ]            ; <i32> [#uses=0] | 
|  | ret void | 
|  |  | 
|  | loopexit.0:             ; preds = %entry | 
|  | ret void | 
|  | } | 
|  |  |