1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
; RUN: opt < %s -loop-simplify -lcssa -verify-loop-info -verify-dom-info -S \
; RUN: | grep -F {indirectbr i8* %x, \[label %L0, label %L1\]} \
; RUN: | count 6
; LoopSimplify should not try to transform loops when indirectbr is involved.
define void @entry(i8* %x) {
entry:
indirectbr i8* %x, [ label %L0, label %L1 ]
L0:
br label %L0
L1:
ret void
}
define void @backedge(i8* %x) {
entry:
br label %L0
L0:
br label %L1
L1:
indirectbr i8* %x, [ label %L0, label %L1 ]
}
define i64 @exit(i8* %x) {
entry:
br label %L2
L2:
%z = bitcast i64 0 to i64
indirectbr i8* %x, [ label %L0, label %L1 ]
L0:
br label %L2
L1:
ret i64 %z
}
define i64 @criticalexit(i8* %x, i1 %a) {
entry:
br i1 %a, label %L1, label %L2
L2:
%z = bitcast i64 0 to i64
indirectbr i8* %x, [ label %L0, label %L1 ]
L0:
br label %L2
L1:
%y = phi i64 [ %z, %L2 ], [ 1, %entry ]
ret i64 %y
}
define i64 @exit_backedge(i8* %x) {
entry:
br label %L0
L0:
%z = bitcast i64 0 to i64
indirectbr i8* %x, [ label %L0, label %L1 ]
L1:
ret i64 %z
}
define i64 @criticalexit_backedge(i8* %x, i1 %a) {
entry:
br i1 %a, label %L0, label %L1
L0:
%z = bitcast i64 0 to i64
indirectbr i8* %x, [ label %L0, label %L1 ]
L1:
%y = phi i64 [ %z, %L0 ], [ 1, %entry ]
ret i64 %y
}
define void @pr5502() nounwind {
entry:
br label %while.cond
while.cond:
br i1 undef, label %while.body, label %while.end
while.body:
indirectbr i8* undef, [label %end_opcode, label %end_opcode]
end_opcode:
br i1 false, label %end_opcode, label %while.cond
while.end:
ret void
}
|
