1; RUN: llvm-as %s -o /dev/null
2; RUN: verify-uselistorder %s
3
4; Dominance relationships is not calculated correctly for unreachable blocks,
5; which causes the verifier to barf on this input.
6
7define i32 @test(i1 %b) {
8BB0:
9        ret i32 7 ; Loop is unreachable
10
11Loop:           ; preds = %L2, %Loop
12        %B = phi i32 [ %B, %L2 ], [ %B, %Loop ]         ;PHI has same value always.
13        br i1 %b, label %L2, label %Loop
14
15L2:             ; preds = %Loop
16        br label %Loop
17}
18
19