1; REQUIRES: asserts
2; RUN: opt -regions -analyze -enable-new-pm=0 < %s | FileCheck %s
3; RUN: opt -regions -stats -disable-output < %s 2>&1 | FileCheck -check-prefix=STAT %s
4; RUN: opt -regions -print-region-style=bb  -analyze -enable-new-pm=0 < %s 2>&1 | FileCheck -check-prefix=BBIT %s
5; RUN: opt -regions -print-region-style=rn  -analyze -enable-new-pm=0 < %s 2>&1 | FileCheck -check-prefix=RNIT %s
6
7; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
8; RUN: opt < %s -passes='print<regions>' -stats 2>&1 | FileCheck -check-prefix=STAT %s
9; RUN: opt -passes='print<regions>' -print-region-style=bb < %s 2>&1 | FileCheck -check-prefix=BBIT %s
10; RUN: opt -passes='print<regions>' -print-region-style=rn < %s 2>&1 | FileCheck -check-prefix=RNIT %s
11
12define internal fastcc zeroext i8 @handle_compress() nounwind {
13end165:
14  br i1 1, label %false239, label %true181
15
16true181:
17  br i1 1, label %then187, label %else232
18
19then187:
20  br label %end265
21
22else232:
23  br i1 1, label %false239, label %then245
24
25false239:
26  br i1 1, label %then245, label %else259
27
28then245:
29  br i1 1, label %then251, label %end253
30
31then251:
32  br label %end253
33
34end253:
35  br label %end265
36
37else259:
38  br label %end265
39
40end265:
41  br i1 1, label %then291, label %end298
42
43then291:
44  br label %end298
45
46end298:
47  ret i8 1
48}
49
50; CHECK-NOT: =>
51; CHECK: [0] end165 => <Function Return>
52; CHECK-NEXT: [1] end165 => end265
53; CHECK-NEXT: [2] then245 => end253
54; CHECK-NEXT: [1] end265 => end298
55
56; STAT: 4 region - The # of regions
57
58; BBIT: end165, false239, then245, then251, end253, end265, then291, end298, else259, true181, then187, else232,
59; BBIT: end165, false239, then245, then251, end253, else259, true181, then187, else232,
60; BBIT: then245, then251,
61; BBIT: end265, then291,
62
63; RNIT: end165 => end265, end265 => end298, end298,
64; RNIT: end165, false239, then245 => end253, end253, else259, true181, then187, else232,
65; RNIT: then245, then251,
66; RNIT: end265, then291,
67