1; Testcase reduced from 197.parser by bugpoint
2; RUN: opt < %s -adce
3
4define void @conjunction_prune() {
5; <label>:0
6        br label %bb19
7
8bb19:           ; preds = %bb23, %bb22, %0
9        %reg205 = phi i8* [ null, %bb22 ], [ null, %bb23 ], [ null, %0 ]                ; <i8*> [#uses=1]
10        br i1 false, label %bb21, label %bb22
11
12bb21:           ; preds = %bb19
13        %cast455 = bitcast i8* %reg205 to i8**          ; <i8**> [#uses=0]
14        br label %bb22
15
16bb22:           ; preds = %bb21, %bb19
17        br i1 false, label %bb19, label %bb23
18
19bb23:           ; preds = %bb22
20        br i1 false, label %bb19, label %bb28
21
22bb28:           ; preds = %bb23
23        ret void
24}
25
26