1; Testcase reduced from 197.parser by bugpoint
2; RUN: opt < %s -adce
3; RUN: opt < %s -adce -adce-remove-loops -S | FileCheck %s
4
5define void @conjunction_prune() {
6; <label>:0
7        br label %bb19
8
9bb19:           ; preds = %bb23, %bb22, %0
10        %reg205 = phi i8* [ null, %bb22 ], [ null, %bb23 ], [ null, %0 ]                ; <i8*> [#uses=1]
11; CHECK: br label %bb22
12        br i1 false, label %bb21, label %bb22
13
14bb21:           ; preds = %bb19
15        %cast455 = bitcast i8* %reg205 to i8**          ; <i8**> [#uses=0]
16; CHECK: br label %bb22
17        br label %bb22
18
19bb22:           ; preds = %bb21, %bb19
20; CHECK: br label %bb23
21        br i1 false, label %bb19, label %bb23
22
23bb23:           ; preds = %bb22
24; CHECK: br label %bb28
25        br i1 false, label %bb19, label %bb28
26
27bb28:           ; preds = %bb23
28        ret void
29}
30
31