1# RUN: llc -mtriple=x86_64-- -run-pass=machine-region-info %s -debug-only=machine-region-info -o /dev/null 2>&1 | FileCheck %s
2# REQUIRES: asserts
3---
4name:            fun
5body:             |
6  bb.0:
7    CMP32ri8 $edi, 40, implicit-def $eflags
8    JCC_1 %bb.7, 5, implicit killed $eflags
9    JMP_1 %bb.1
10
11  bb.1:
12    CMP32ri8 $edi, 1, implicit-def $eflags
13    JCC_1 %bb.11, 5, implicit killed $eflags
14    JMP_1 %bb.2
15
16  bb.2:
17    CMP32ri8 $edi, 2, implicit-def $eflags
18    JCC_1 %bb.5, 5, implicit killed $eflags
19    JMP_1 %bb.3
20
21  bb.3:
22    CMP32ri8 $edi, 90, implicit-def $eflags
23    JCC_1 %bb.5, 5, implicit killed $eflags
24    JMP_1 %bb.4
25
26  bb.4:
27
28  bb.5:
29    CMP32ri8 $edi, 4, implicit-def $eflags
30    JCC_1 %bb.11, 5, implicit killed $eflags
31    JMP_1 %bb.6
32
33  bb.6:
34    JMP_1 %bb.11
35
36  bb.7:
37    CMP32ri8 $edi, 5, implicit-def $eflags
38    JCC_1 %bb.9, 4, implicit killed $eflags
39    JMP_1 %bb.8
40
41  bb.8:
42
43  bb.9:
44    CMP32ri8 $edi, 6, implicit-def $eflags
45    JCC_1 %bb.11, 4, implicit killed $eflags
46    JMP_1 %bb.10
47
48  bb.10:
49
50  bb.11:
51    RET 0
52
53...
54
55# CHECK: Region tree:
56# CHECK-NEXT: [0] %bb.0 => <Function Return>
57# CHECK-NEXT:   [1] %bb.0 => %bb.11
58# CHECK-NEXT:     [2] %bb.7 => %bb.9
59# CHECK-NEXT:     [2] %bb.9 => %bb.11
60# CHECK-NEXT:     [2] %bb.1 => %bb.11
61# CHECK-NEXT:       [3] %bb.2 => %bb.5
62# CHECK-NEXT:         [4] %bb.3 => %bb.5
63# CHECK-NEXT:       [3] %bb.5 => %bb.11
64# CHECK-NEXT: End region tree
65