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
|
; RUN: opt -loop-reduce < %s
; we used to crash on this one
declare i8* @_Znwm()
declare i32 @__gxx_personality_v0(...)
declare void @g()
define void @f() {
bb0:
br label %bb1
bb1:
%v0 = phi i64 [ 0, %bb0 ], [ %v1, %bb1 ]
%v1 = add nsw i64 %v0, 1
br i1 undef, label %bb2, label %bb1
bb2:
%v2 = icmp eq i64 %v0, 0
br i1 %v2, label %bb6, label %bb3
bb3:
%v3 = invoke noalias i8* @_Znwm()
to label %bb5 unwind label %bb4
bb4:
%v4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
cleanup
br label %bb9
bb5:
%v5 = bitcast i8* %v3 to i32**
%add.ptr.i = getelementptr inbounds i32*, i32** %v5, i64 %v0
br label %bb6
bb6:
%v6 = phi i32** [ null, %bb2 ], [ %add.ptr.i, %bb5 ]
invoke void @g()
to label %bb7 unwind label %bb8
bb7:
unreachable
bb8:
%v7 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
cleanup
br label %bb9
bb9:
resume { i8*, i32 } zeroinitializer
}
define void @h() {
bb1:
invoke void @g() optsize
to label %bb2 unwind label %bb5
bb2:
%arrayctor.cur = phi i8* [ undef, %bb1 ], [ %arrayctor.next, %bb3 ]
invoke void @g() optsize
to label %bb3 unwind label %bb6
bb3:
%arrayctor.next = getelementptr inbounds i8, i8* %arrayctor.cur, i64 1
br label %bb2
bb4:
ret void
bb5:
%tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
cleanup
invoke void @g() optsize
to label %bb4 unwind label %bb7
bb6:
%tmp1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
cleanup
%arraydestroy.isempty = icmp eq i8* undef, %arrayctor.cur
ret void
bb7:
%lpad.nonloopexit = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
catch i8* null
ret void
}
; PR17425
define void @i() {
entry:
br label %while.cond
while.cond: ; preds = %while.cond, %entry
%c.0 = phi i16* [ undef, %entry ], [ %incdec.ptr, %while.cond ]
%incdec.ptr = getelementptr inbounds i16, i16* %c.0, i64 1
br i1 undef, label %while.cond1, label %while.cond
while.cond1: ; preds = %while.cond1, %while.cond
%c.1 = phi i16* [ %incdec.ptr5, %while.cond1 ], [ %c.0, %while.cond ]
%incdec.ptr5 = getelementptr inbounds i16, i16* %c.1, i64 1
br i1 undef, label %while.cond7, label %while.cond1
while.cond7: ; preds = %while.cond7, %while.cond1
%0 = phi i16* [ %incdec.ptr10, %while.cond7 ], [ %c.1, %while.cond1 ]
%incdec.ptr10 = getelementptr inbounds i16, i16* %0, i64 1
br i1 undef, label %while.cond12.preheader, label %while.cond7
while.cond12.preheader: ; preds = %while.cond7
br i1 undef, label %while.end16, label %while.body13.lr.ph
while.body13: ; preds = %if.else, %while.body13.lr.ph
%1 = phi i16* [ %2, %while.body13.lr.ph ], [ %incdec.ptr15, %if.else ]
br i1 undef, label %while.cond12.outer.loopexit, label %if.else
while.cond12.outer.loopexit: ; preds = %while.body13
br i1 undef, label %while.end16, label %while.body13.lr.ph
while.body13.lr.ph: ; preds = %while.cond12.outer.loopexit, %while.cond12.preheader
%2 = phi i16* [ %1, %while.cond12.outer.loopexit ], [ undef, %while.cond12.preheader ]
br label %while.body13
if.else: ; preds = %while.body13
%incdec.ptr15 = getelementptr inbounds i16, i16* %1, i64 1
%cmp = icmp eq i16* %incdec.ptr15, %0
br i1 %cmp, label %while.end16, label %while.body13
while.end16: ; preds = %if.else, %while.cond12.outer.loopexit, %while.cond12.preheader
ret void
}
|
