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
|
/* PR middle-end/80936 - bcmp, bcopy, and bzero not declared nonnull
Verify that with optimization, -Wnonnull is issued for calls with
non-constant arguments determined to be null.
{ dg-do compile }
{ dg-options "-O2 -Wall" } */
#define NOIPA __attribute__ ((noipa))
NOIPA void zero0 (void *p, unsigned n)
{
if (p == 0)
__builtin_memset (p, 0, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void zero1 (void *p, unsigned n)
{
if (p == 0)
__builtin_bzero (p, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy0 (void *p, const void *q, unsigned n)
{
if (p == 0)
__builtin_memcpy (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy1 (void *p, const void *q, unsigned n)
{
if (q == 0)
__builtin_memcpy (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy2 (void *p, const void *q, unsigned n)
{
if (p == 0)
__builtin_bcopy (q, p, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy3 (void *p, const void *q, unsigned n)
{
if (q == 0)
__builtin_bcopy (q, p, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA int cmp0 (const void *p, const void *q, unsigned n)
{
if (p == 0)
return __builtin_memcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
NOIPA int cmp1 (const void *p, const void *q, unsigned n)
{
if (q == 0)
return __builtin_memcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
NOIPA int cmp2 (const void *p, const void *q, unsigned n)
{
if (p == 0)
return __builtin_bcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
NOIPA int cmp3 (const void *p, const void *q, unsigned n)
{
if (q == 0)
return __builtin_bcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
|
