1; REQUIRES: asserts
2; RUN: opt -regions -analyze < %s | FileCheck %s
3; RUN: opt -regions -stats < %s 2>&1 | FileCheck -check-prefix=STAT %s
4; RUN: opt -regions -print-region-style=bb  -analyze < %s 2>&1 | FileCheck -check-prefix=BBIT %s
5; RUN: opt -regions -print-region-style=rn  -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s
6
7define void @MAIN__() nounwind {
8entry:
9  br label %__label_002001.outer
10
11__label_002001.outer:                             ; preds = %bb236, %bb92
12  br label %__label_002001
13
14__label_002001:                                   ; preds = %bb229, %__label_002001.outer
15  br i1  1, label %bb93, label %__label_000020
16
17bb93:                                             ; preds = %__label_002001
18  br i1  1, label %__label_000020, label %bb197
19
20bb197:                                            ; preds = %bb193
21  br i1  1, label %bb229, label %bb224
22
23bb224:                                            ; preds = %bb223, %bb227
24  br i1  1, label %bb229, label %bb224
25
26bb229:                                            ; preds = %bb227, %bb223
27  br i1  1, label %__label_002001, label %__label_002001.outer
28
29__label_000020:                                   ; preds = %__label_002001, %bb194
30  ret void
31}
32
33; CHECK-NOT: =>
34; CHECK: [0] entry => <Function Return>
35; CHECK-NEXT:  [1] __label_002001.outer => __label_000020
36; CHECK-NEXT:      [2] bb197 => bb229
37; CHECK-NEXT:            [3] bb224 => bb229
38
39; STAT: 4 region - The # of regions
40; STAT: 1 region - The # of simple regions
41
42; BBIT: entry, __label_002001.outer, __label_002001, bb93, __label_000020, bb197, bb229, bb224,
43; BBIT: __label_002001.outer, __label_002001, bb93, bb197, bb229, bb224,
44; BBIT: bb197, bb224,
45; BBIT: bb224,
46
47; RNIT: entry, __label_002001.outer => __label_000020, __label_000020,
48; RNIT: __label_002001.outer, __label_002001, bb93, bb197 => bb229, bb229,
49; RNIT: bb197, bb224 => bb229,
50; RNIT: bb224,
51