1 ; RUN: llvm-as < %s | opt -loop-reduce -disable-output
3 define void @try_swap() {
5 br i1 false, label %cond_continue.0.i, label %cond_false.0.i
6 cond_false.0.i: ; preds = %entry
8 cond_continue.0.i: ; preds = %entry
9 br i1 false, label %cond_continue.1.i, label %cond_false.1.i
10 cond_false.1.i: ; preds = %cond_continue.0.i
12 cond_continue.1.i: ; preds = %cond_continue.0.i
13 br i1 false, label %endif.3.i, label %else.0.i
14 endif.3.i: ; preds = %cond_continue.1.i
15 br i1 false, label %my_irand.exit82, label %endif.0.i62
16 else.0.i: ; preds = %cond_continue.1.i
18 endif.0.i62: ; preds = %endif.3.i
20 my_irand.exit82: ; preds = %endif.3.i
21 br i1 false, label %else.2, label %then.4
22 then.4: ; preds = %my_irand.exit82
24 else.2: ; preds = %my_irand.exit82
25 br i1 false, label %find_affected_nets.exit, label %loopentry.1.i107.outer.preheader
26 loopentry.1.i107.outer.preheader: ; preds = %else.2
28 find_affected_nets.exit: ; preds = %else.2
29 br i1 false, label %save_region_occ.exit, label %loopentry.1
30 save_region_occ.exit: ; preds = %find_affected_nets.exit
31 br i1 false, label %no_exit.1.preheader, label %loopexit.1
32 loopentry.1: ; preds = %find_affected_nets.exit
34 no_exit.1.preheader: ; preds = %save_region_occ.exit
36 loopexit.1: ; preds = %save_region_occ.exit
37 br i1 false, label %then.10, label %loopentry.3
38 then.10: ; preds = %loopexit.1
40 loopentry.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
43 endif.16: ; preds = %loopentry.3
44 %indvar.next343 = add i32 %indvar342, 1 ; <i32> [#uses=1]
46 loopexit.3: ; preds = %loopentry.3
48 loopentry.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** null ; <i32*> [#uses=1]
52 %gep.upgrd.1 = zext i32 %tmp. to i64 ; <i64> [#uses=1]
53 %tmp.528 = getelementptr 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]