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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
| ; This test is based on one of benchmarks from SPEC2006. It exposes a bug with
; incorrect updating of the dom-tree.
; RUN: opt < %s -loop-vectorize -verify-dom-info
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
@PL_utf8skip = external constant [0 x i8]
; Function Attrs: nounwind ssp uwtable
define void @Perl_pp_quotemeta() #0 {
%len = alloca i64, align 8
br i1 undef, label %2, label %1
; <label>:1 ; preds = %0
br label %3
; <label>:2 ; preds = %0
br label %3
; <label>:3 ; preds = %2, %1
br i1 undef, label %34, label %4
; <label>:4 ; preds = %3
br i1 undef, label %5, label %6
; <label>:5 ; preds = %4
br label %6
; <label>:6 ; preds = %5, %4
br i1 undef, label %7, label %8
; <label>:7 ; preds = %6
br label %8
; <label>:8 ; preds = %7, %6
br i1 undef, label %.preheader, label %9
.preheader: ; preds = %9, %8
br i1 undef, label %.loopexit, label %.lr.ph
; <label>:9 ; preds = %8
br i1 undef, label %thread-pre-split.preheader, label %.preheader
thread-pre-split.preheader: ; preds = %9
br i1 undef, label %thread-pre-split._crit_edge, label %.lr.ph21
.thread-pre-split.loopexit_crit_edge: ; preds = %19
%scevgep.sum = xor i64 %umax, -1
%scevgep45 = getelementptr i8, i8* %d.020, i64 %scevgep.sum
br label %thread-pre-split.loopexit
thread-pre-split.loopexit: ; preds = %11, %.thread-pre-split.loopexit_crit_edge
%d.1.lcssa = phi i8* [ %scevgep45, %.thread-pre-split.loopexit_crit_edge ], [ %d.020, %11 ]
br i1 false, label %thread-pre-split._crit_edge, label %.lr.ph21
.lr.ph21: ; preds = %26, %thread-pre-split.loopexit, %thread-pre-split.preheader
%d.020 = phi i8* [ undef, %26 ], [ %d.1.lcssa, %thread-pre-split.loopexit ], [ undef, %thread-pre-split.preheader ]
%10 = phi i64 [ %28, %26 ], [ undef, %thread-pre-split.loopexit ], [ undef, %thread-pre-split.preheader ]
br i1 undef, label %11, label %22
; <label>:11 ; preds = %.lr.ph21
%12 = getelementptr inbounds [0 x i8], [0 x i8]* @PL_utf8skip, i64 0, i64 undef
%13 = load i8, i8* %12, align 1
%14 = zext i8 %13 to i64
%15 = icmp ugt i64 %14, %10
%. = select i1 %15, i64 %10, i64 %14
br i1 undef, label %thread-pre-split.loopexit, label %.lr.ph28
.lr.ph28: ; preds = %11
%16 = xor i64 %10, -1
%17 = xor i64 %14, -1
%18 = icmp ugt i64 %16, %17
%umax = select i1 %18, i64 %16, i64 %17
br label %19
; <label>:19 ; preds = %19, %.lr.ph28
%ulen.126 = phi i64 [ %., %.lr.ph28 ], [ %20, %19 ]
%20 = add i64 %ulen.126, -1
%21 = icmp eq i64 %20, 0
br i1 %21, label %.thread-pre-split.loopexit_crit_edge, label %19
; <label>:22 ; preds = %.lr.ph21
br i1 undef, label %26, label %23
; <label>:23 ; preds = %22
br i1 undef, label %26, label %24
; <label>:24 ; preds = %23
br i1 undef, label %26, label %25
; <label>:25 ; preds = %24
br label %26
; <label>:26 ; preds = %25, %24, %23, %22
%27 = load i64, i64* %len, align 8
%28 = add i64 %27, -1
br i1 undef, label %thread-pre-split._crit_edge, label %.lr.ph21
thread-pre-split._crit_edge: ; preds = %26, %thread-pre-split.loopexit, %thread-pre-split.preheader
br label %.loopexit
.lr.ph: ; preds = %33, %.preheader
br i1 undef, label %29, label %thread-pre-split5
; <label>:29 ; preds = %.lr.ph
br i1 undef, label %33, label %30
; <label>:30 ; preds = %29
br i1 undef, label %33, label %31
thread-pre-split5: ; preds = %.lr.ph
br i1 undef, label %33, label %31
; <label>:31 ; preds = %thread-pre-split5, %30
br i1 undef, label %33, label %32
; <label>:32 ; preds = %31
br label %33
; <label>:33 ; preds = %32, %31, %thread-pre-split5, %30, %29
br i1 undef, label %.loopexit, label %.lr.ph
.loopexit: ; preds = %33, %thread-pre-split._crit_edge, %.preheader
br label %35
; <label>:34 ; preds = %3
br label %35
; <label>:35 ; preds = %34, %.loopexit
br i1 undef, label %37, label %36
; <label>:36 ; preds = %35
br label %37
; <label>:37 ; preds = %36, %35
ret void
}
attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.ident = !{!0}
!0 = !{!"clang version 3.6.0 "}
|