1; RUN: opt < %s -gvn -enable-pre -S | grep "b.pre"
2
3define i32 @main(i32 %p, i32 %q) {
4block1:
5    %cmp = icmp eq i32 %p, %q
6	br i1 %cmp, label %block2, label %block3
7
8block2:
9 %a = add i32 %p, 1
10 br label %block4
11
12block3:
13  br label %block4
14
15block4:
16  %b = add i32 %p, 1
17  ret i32 %b
18}
19