1; RUN: opt < %s -gvn
2; PR12858
3
4define void @fn5(i16 signext %p1, i8 signext %p2) nounwind uwtable {
5entry:
6  br i1 undef, label %if.else, label %if.then
7
8if.then:                                          ; preds = %entry
9  br label %if.end
10
11if.else:                                          ; preds = %entry
12  %conv = sext i16 %p1 to i32
13  br label %if.end
14
15if.end:                                           ; preds = %if.else, %if.then
16  %conv1 = sext i16 %p1 to i32
17  br i1 undef, label %if.then3, label %if.else4
18
19if.then3:                                         ; preds = %if.end
20  br label %if.end12
21
22if.else4:                                         ; preds = %if.end
23  %conv7 = sext i8 %p2 to i32
24  %cmp8 = icmp eq i32 %conv1, %conv7
25  br i1 %cmp8, label %if.then10, label %if.end12
26
27if.then10:                                        ; preds = %if.else4
28  br label %if.end12
29
30if.end12:                                         ; preds = %if.then10, %if.else4, %if.then3
31  %conv13 = sext i8 %p2 to i32
32  ret void
33}
34