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.
9 %node_t = type { double*, %node_t*, %node_t**, double**, double*, i32, i32 }
11 define void @localize_local(%node_t* %nodelist) {
13 %nodelist.upgrd.1 = alloca %node_t* ; <%node_t**> [#uses=2]
14 store %node_t* %nodelist, %node_t** %nodelist.upgrd.1
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
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
29 bb3: ; preds = %bb2, %bb1