1; RUN: opt < %s -disable-output "-passes=print<da>"                            \
2; RUN: "-aa-pipeline=basic-aa,globals-aa" 2>&1 | FileCheck %s
3; RUN: opt < %s -analyze -basicaa -globals-aa -da | FileCheck %s
4define void @i32_subscript(i32* %a) {
5entry:
6  br label %for.body
7
8for.body:
9  %i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ]
10  %a.addr = getelementptr i32, i32* %a, i32 %i
11  %a.addr.2 = getelementptr i32, i32* %a, i32 5
12  %0 = load i32, i32* %a.addr, align 4
13  %1 = add i32 %0, 1
14  store i32 %1, i32* %a.addr.2, align 4
15  %i.inc = add nsw i32 %i, 1
16  %i.inc.ext = sext i32 %i to i64
17  %exitcond = icmp ne i64 %i.inc.ext, 100
18  br i1 %exitcond, label %for.body, label %for.end
19
20for.end:
21  ret void
22}
23; CHECK: none
24; CHECK: anti
25; CHECK: output
26
27
28; Test for a bug, which caused an assert in ScalarEvolution because
29; the Dependence Analyzer attempted to zero extend a type to a smaller
30; type.
31
32; void t(unsigned int *a, unsigned int n) {
33;   for (unsigned int i = 0; i != n; i++) {
34;     a[(unsigned short)i] = g;
35;  }}
36
37@g = common global i32 0, align 4
38
39define void @t(i32* noalias %a, i32 %n) nounwind {
40entry:
41  %cmp1 = icmp eq i32 %n, 0
42  br i1 %cmp1, label %for.end, label %for.body
43
44for.body:
45  %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
46  %0 = load i32, i32* @g, align 4
47  %idxprom = and i32 %i.02, 65535
48  %arrayidx = getelementptr inbounds i32, i32* %a, i32 %idxprom
49  store i32 %0, i32* %arrayidx, align 4
50  %inc = add i32 %i.02, 1
51  %cmp = icmp eq i32 %inc, %n
52  br i1 %cmp, label %for.end, label %for.body
53
54for.end:
55  ret void
56}
57; CHECK: input
58; CHECK: none
59; CHECK: output
60
61define void @i16_wrap(i64* %a) {
62entry:
63  br label %for.body
64for.body:
65  %i = phi i64 [0, %entry], [%i.inc, %for.inc]
66  %i.tr = trunc i64 %i to i16
67  %idx = getelementptr i64, i64* %a, i16 %i.tr
68  %0 = load i64, i64* %idx
69  %1 = add i64 %0, 1
70store i64 %1, i64* %idx
71  br label %for.inc
72
73for.inc:
74  %i.inc = add nuw i64 %i, 1
75  %cmp = icmp ult i64 %i.inc, 17179869184
76  br i1 %cmp, label %for.body, label %for.end
77for.end:
78  ret void
79}
80; CHECK: input
81; CHECK: anti
82; CHECK: output
83
84define void @i8_stride_wrap(i32* noalias %a, i32* noalias %b) {
85entry:
86  br label %for.body
87for.body:
88  %i = phi i32 [1,%entry], [%i.inc, %for.inc]
89  %i.tr = trunc i32 %i to i8
90  %idx = getelementptr i32, i32* %a, i8 %i.tr
91  %idx.2 = getelementptr i32, i32* %b, i32 %i
92  %0 = load i32, i32* %idx, align 4
93  %1 = add i32 %0, 1
94  store i32 %1, i32* %idx.2, align 4
95  br label %for.inc
96
97for.inc:
98  %i.inc = add nsw i32 %i, 256
99  %exitcond = icmp ult i32 %i, 65536
100  br i1 %exitcond, label %for.body, label %for.end
101
102for.end:
103  ret void
104}
105; CHECK: input
106; CHECK: none
107; CHECK: none
108