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.
7 ; RUN: llvm-as < %s | opt -adce
9 %node_t = type { double*, %node_t*, %node_t**, double**, double*, int, int }
11 implementation ; Functions:
13 void %localize_local(%node_t* %nodelist) {
15 %nodelist = alloca %node_t* ; <%node_t**> [#uses=2]
16 store %node_t* %nodelist, %node_t** %nodelist
20 %reg107 = load %node_t** %nodelist ; <%node_t*> [#uses=2]
21 %cond211 = seteq %node_t* %reg107, null ; <bool> [#uses=1]
22 br bool %cond211, label %bb3, label %bb2
25 %reg109 = phi %node_t* [ %reg110, %bb2 ], [ %reg107, %bb1 ] ; <%node_t*> [#uses=1]
26 %reg212 = getelementptr %node_t* %reg109, long 0, uint 1 ; <%node_t**> [#uses=1]
27 %reg110 = load %node_t** %reg212 ; <%node_t*> [#uses=2]
28 %cond213 = setne %node_t* %reg110, null ; <bool> [#uses=1]
29 br bool %cond213, label %bb2, label %bb3