1
; RUN: opt < %s -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*, 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]