blob: f515c211c99bdfa2865a05b30186957559fbfc39 (
plain)
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
|
/* { dg-do run } */
/* { dg-options "-O -fno-strict-aliasing" } */
struct S
{
void *a;
long double b;
};
struct Z
{
long long l;
short s;
} __attribute__((packed));
struct S __attribute__((noclone, noinline))
foo (void *v, struct Z *z)
{
struct S t;
t.a = v;
*(struct Z *) &t.b = *z;
return t;
}
struct Z gz;
int
main (int argc, char **argv)
{
struct S s;
if (sizeof (long double) < sizeof (struct Z))
return 0;
gz.l = 0xbeef;
gz.s = 0xab;
s = foo ((void *) 0, &gz);
if ((((struct Z *) &s.b)->l != gz.l)
|| (((struct Z *) &s.b)->s != gz.s))
__builtin_abort ();
return 0;
}
|
