1; RUN: opt < %s -loop-reduce -disable-output
2
3define void @try_swap() {
4entry:
5	br i1 false, label %cond_continue.0.i, label %cond_false.0.i
6cond_false.0.i:		; preds = %entry
7	ret void
8cond_continue.0.i:		; preds = %entry
9	br i1 false, label %cond_continue.1.i, label %cond_false.1.i
10cond_false.1.i:		; preds = %cond_continue.0.i
11	ret void
12cond_continue.1.i:		; preds = %cond_continue.0.i
13	br i1 false, label %endif.3.i, label %else.0.i
14endif.3.i:		; preds = %cond_continue.1.i
15	br i1 false, label %my_irand.exit82, label %endif.0.i62
16else.0.i:		; preds = %cond_continue.1.i
17	ret void
18endif.0.i62:		; preds = %endif.3.i
19	ret void
20my_irand.exit82:		; preds = %endif.3.i
21	br i1 false, label %else.2, label %then.4
22then.4:		; preds = %my_irand.exit82
23	ret void
24else.2:		; preds = %my_irand.exit82
25	br i1 false, label %find_affected_nets.exit, label %loopentry.1.i107.outer.preheader
26loopentry.1.i107.outer.preheader:		; preds = %else.2
27	ret void
28find_affected_nets.exit:		; preds = %else.2
29	br i1 false, label %save_region_occ.exit, label %loopentry.1
30save_region_occ.exit:		; preds = %find_affected_nets.exit
31	br i1 false, label %no_exit.1.preheader, label %loopexit.1
32loopentry.1:		; preds = %find_affected_nets.exit
33	ret void
34no_exit.1.preheader:		; preds = %save_region_occ.exit
35	ret void
36loopexit.1:		; preds = %save_region_occ.exit
37	br i1 false, label %then.10, label %loopentry.3
38then.10:		; preds = %loopexit.1
39	ret void
40loopentry.3:		; preds = %endif.16, %loopexit.1
41	%indvar342 = phi i32 [ %indvar.next343, %endif.16 ], [ 0, %loopexit.1 ]		; <i32> [#uses=2]
42	br i1 false, label %loopexit.3, label %endif.16
43endif.16:		; preds = %loopentry.3
44	%indvar.next343 = add i32 %indvar342, 1		; <i32> [#uses=1]
45	br label %loopentry.3
46loopexit.3:		; preds = %loopentry.3
47	br label %loopentry.4
48loopentry.4:		; preds = %loopentry.4, %loopexit.3
49	%indvar340 = phi i32 [ 0, %loopexit.3 ], [ %indvar.next341, %loopentry.4 ]		; <i32> [#uses=2]
50	%tmp. = add i32 %indvar340, %indvar342		; <i32> [#uses=1]
51	%tmp.526 = load i32*, i32** null		; <i32*> [#uses=1]
52	%gep.upgrd.1 = zext i32 %tmp. to i64		; <i64> [#uses=1]
53	%tmp.528 = getelementptr i32, i32* %tmp.526, i64 %gep.upgrd.1		; <i32*> [#uses=1]
54	store i32 0, i32* %tmp.528
55	%indvar.next341 = add i32 %indvar340, 1		; <i32> [#uses=1]
56	br label %loopentry.4
57}
58