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 internal fastcc void @compress() nounwind {
10end33:
11  br i1 1, label %end124, label %lor.lhs.false95
12
13lor.lhs.false95:
14  br i1 1, label %then107, label %end172
15
16then107:
17  br i1 1, label %end124, label %then113
18
19then113:
20  br label %end124
21
22end124:
23  br label %exit
24
25end172:
26  br label %exit
27
28
29exit:
30  unreachable
31
32
33}
34; CHECK-NOT: =>
35; CHECK: [0] end33 => <Function Return>
36; CHECK-NEXT:      [1] end33 => exit
37; CHECK-NEXT:   [2] then107 => end124
38
39; STAT: 3 region - The # of regions
40
41; BBIT: end33, end124, exit, lor.lhs.false95, then107, then113, end172,
42; BBIT: end33, end124, lor.lhs.false95, then107, then113, end172,
43; BBIT: then107, then113,
44
45; RNIT: end33 => exit, exit,
46; RNIT: end33, end124, lor.lhs.false95, then107 => end124, end172,
47; RNIT: then107, then113,
48