1; RUN: opt -regions -analyze < %s | FileCheck %s
2; RUN: opt -regions -stats < %s 2>&1 | FileCheck -check-prefix=STAT %s
3; RUN: opt -regions -print-region-style=bb  -analyze < %s 2>&1 | FileCheck -check-prefix=BBIT %s
4; RUN: opt -regions -print-region-style=rn  -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s
5
6define internal fastcc zeroext i8 @handle_compress() nounwind {
7entry:
8  br label %outer
9
10outer:
11  br label %body
12
13body:
14  br i1 1, label %else, label %true77
15
16true77:
17  br i1 1, label %then83, label %else
18
19then83:
20  br label %outer
21
22else:
23  br label %else106
24
25else106:
26  br i1 1, label %end, label %outer
27
28end:
29  ret i8 1
30}
31
32; CHECK-NOT: =>
33; CHECK: [0] entry => <Function Return>
34; CHECK-NEXT: [1] outer => end
35; CHECK-NEXT:   [2] outer => else
36
37; STAT: 3 region - The # of regions
38; STAT: 1 region - The # of simple regions
39
40; BBIT: entry, outer, body, else, else106, end, true77, then83,
41; BBIT: outer, body, else, else106, true77, then83,
42; BBIT: outer, body, true77, then83,
43
44; RNIT: entry, outer => end, end,
45; RNIT: outer => else, else, else106,
46; RNIT: outer, body, true77, then83,
47