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 @a_linear_impl_fig_1() nounwind {
80:
9        br label %"1"
101:
11	br label %"2"
122:
13	br label %"3"
143:
15	br i1 1, label %"13", label %"4"
164:
17	br i1 1, label %"5", label %"1"
185:
19	br i1 1, label %"8", label %"6"
206:
21	br i1 1, label %"7", label %"4"
227:
23	ret void
248:
25	br i1 1, label %"9", label %"1"
269:
27	br label %"10"
2810:
29	br i1 1, label %"12", label %"11"
3011:
31	br i1 1, label %"9", label %"8"
3213:
33	br i1 1, label %"2", label %"1"
3412:
35 	switch i32 0, label %"1" [ i32 0, label %"9"
36                                  i32 1, label %"8"]
37}
38
39; CHECK-NOT: =>
40; CHECK: [0] 0 => <Function Return>
41; CHECK-NEXT: [1] 1 => 7
42; CHECK-NEXT:   [2] 1 => 4
43; CHECK-NEXT:   [2] 8 => 1
44
45; STAT: 4 region - The # of regions
46; STAT: 1 region - The # of simple regions
47
48; BBIT: 0, 1, 2, 3, 13, 4, 5, 8, 9, 10, 12, 11, 6, 7,
49; BBIT: 1, 2, 3, 13, 4, 5, 8, 9, 10, 12, 11, 6,
50; BBIT: 1, 2, 3, 13,
51; BBIT: 8, 9, 10, 12, 11,
52
53; RNIT: 0, 1 => 7, 7,
54; RNIT: 1 => 4, 4, 5, 8 => 1, 6,
55; RNIT: 1, 2, 3, 13,
56; RNIT: 8, 9, 10, 12, 11,
57