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1; This test shows a case where SCCP is incorrectly eliminating the PHI node
2; because it thinks it has a constant 0 value, when it really doesn't.
3
4; RUN: opt < %s -sccp -S | grep phi
5
6define i32 @test(i32 %A, i1 %c) {
7bb1:
8	br label %BB2
9BB2:		; preds = %BB4, %bb1
10	%V = phi i32 [ 0, %bb1 ], [ %A, %BB4 ]		; <i32> [#uses=1]
11	br label %BB3
12BB3:		; preds = %BB2
13	br i1 %c, label %BB4, label %BB5
14BB4:		; preds = %BB3
15	br label %BB2
16BB5:		; preds = %BB3
17	ret i32 %V
18}
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