1; It is illegal to remove BB1 because it will mess up the PHI node!
2;
3; RUN: opt < %s -adce -S | grep BB1
4
5define i32 @test(i1 %C, i32 %A, i32 %B) {
6; <label>:0
7        br i1 %C, label %BB1, label %BB2
8
9BB1:            ; preds = %0
10        br label %BB2
11
12BB2:            ; preds = %BB1, %0
13        %R = phi i32 [ %A, %0 ], [ %B, %BB1 ]           ; <i32> [#uses=1]
14        ret i32 %R
15}
16
17