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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
11define void @localize_local(%node_t* %nodelist) {
12bb0:
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
17bb1:            ; 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
22bb2:            ; 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
29bb3:            ; preds = %bb2, %bb1
30        ret void
31}
32
33