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      1 ; This testcase contains a entire loop that should be removed.  The only thing
      2 ; left is the store instruction in BB0.  The problem this testcase was running
      3 ; into was that when the reg109 PHI was getting zero predecessors, it was 
      4 ; removed even though there were uses still around.  Now the uses are filled
      5 ; in with a dummy value before the PHI is deleted.
      6 ;
      7 ; RUN: opt < %s -adce
      8 	
      9         %node_t = type { double*, %node_t*, %node_t**, double**, double*, i32, i32 }
     10 
     11 define void @localize_local(%node_t* %nodelist) {
     12 bb0:
     13         %nodelist.upgrd.1 = alloca %node_t*             ; <%node_t**> [#uses=2]
     14         store %node_t* %nodelist, %node_t** %nodelist.upgrd.1
     15         br label %bb1
     16 
     17 bb1:            ; preds = %bb0
     18         %reg107 = load %node_t** %nodelist.upgrd.1              ; <%node_t*> [#uses=2]
     19         %cond211 = icmp eq %node_t* %reg107, null               ; <i1> [#uses=1]
     20         br i1 %cond211, label %bb3, label %bb2
     21 
     22 bb2:            ; preds = %bb2, %bb1
     23         %reg109 = phi %node_t* [ %reg110, %bb2 ], [ %reg107, %bb1 ]             ; <%node_t*> [#uses=1]
     24         %reg212 = getelementptr %node_t* %reg109, i64 0, i32 1          ; <%node_t**> [#uses=1]
     25         %reg110 = load %node_t** %reg212                ; <%node_t*> [#uses=2]
     26         %cond213 = icmp ne %node_t* %reg110, null               ; <i1> [#uses=1]
     27         br i1 %cond213, label %bb2, label %bb3
     28 
     29 bb3:            ; preds = %bb2, %bb1
     30         ret void
     31 }
     32 
     33