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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
7; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
8
9define void @MAIN__() nounwind {
10entry:
11  br label %__label_002001.outer
12
13__label_002001.outer:                             ; preds = %bb236, %bb92
14  br label %__label_002001
15
16__label_002001:                                   ; preds = %bb229, %__label_002001.outer
17  br i1  1, label %bb93, label %__label_000020
18
19bb93:                                             ; preds = %__label_002001
20  br i1  1, label %__label_000020, label %bb197
21
22bb197:                                            ; preds = %bb193
23  br i1  1, label %bb229, label %bb224
24
25bb224:                                            ; preds = %bb223, %bb227
26  br i1  1, label %bb229, label %bb224
27
28bb229:                                            ; preds = %bb227, %bb223
29  br i1  1, label %__label_002001, label %__label_002001.outer
30
31__label_000020:                                   ; preds = %__label_002001, %bb194
32  ret void
33}
34
35; CHECK-NOT: =>
36; CHECK: [0] entry => <Function Return>
37; CHECK-NEXT:  [1] __label_002001.outer => __label_000020
38; CHECK-NEXT:      [2] bb197 => bb229
39; CHECK-NEXT:            [3] bb224 => bb229
40
41; STAT: 4 region - The # of regions
42; STAT: 1 region - The # of simple regions
43
44; BBIT: entry, __label_002001.outer, __label_002001, bb93, __label_000020, bb197, bb229, bb224,
45; BBIT: __label_002001.outer, __label_002001, bb93, bb197, bb229, bb224,
46; BBIT: bb197, bb224,
47; BBIT: bb224,
48
49; RNIT: entry, __label_002001.outer => __label_000020, __label_000020,
50; RNIT: __label_002001.outer, __label_002001, bb93, bb197 => bb229, bb229,
51; RNIT: bb197, bb224 => bb229,
52; RNIT: bb224,
53