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1; RUN: opt < %s -analyze -scalar-evolution |& grep {/u 3}
2; XFAIL: *
3
4; This is a tricky testcase for unsigned wrap detection which ScalarEvolution
5; doesn't yet know how to do.
6
7define i32 @f(i32 %x) nounwind readnone {
8entry:
9	%0 = icmp ugt i32 %x, 999		; <i1> [#uses=1]
10	br i1 %0, label %bb2, label %bb.nph
11
12bb.nph:		; preds = %entry
13	br label %bb
14
15bb:		; preds = %bb.nph, %bb1
16	%indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb1 ]		; <i32> [#uses=2]
17	%tmp = mul i32 %indvar, 3		; <i32> [#uses=1]
18	%x_addr.04 = add i32 %tmp, %x		; <i32> [#uses=1]
19	%1 = add i32 %x_addr.04, 3		; <i32> [#uses=2]
20	br label %bb1
21
22bb1:		; preds = %bb
23	%2 = icmp ugt i32 %1, 999		; <i1> [#uses=1]
24	%indvar.next = add i32 %indvar, 1		; <i32> [#uses=1]
25	br i1 %2, label %bb1.bb2_crit_edge, label %bb
26
27bb1.bb2_crit_edge:		; preds = %bb1
28	%.lcssa = phi i32 [ %1, %bb1 ]		; <i32> [#uses=1]
29	br label %bb2
30
31bb2:		; preds = %bb1.bb2_crit_edge, %entry
32	%x_addr.0.lcssa = phi i32 [ %.lcssa, %bb1.bb2_crit_edge ], [ %x, %entry ]		; <i32> [#uses=1]
33	ret i32 %x_addr.0.lcssa
34}
35