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
|
#include <omp.h>
#include <stdlib.h>
int
main ()
{
int d = omp_get_default_device ();
int id = omp_get_initial_device ();
int a[0];
int b[] = { 24, 42 };
void *p1 = NULL, *p2 = NULL;
if (d < 0 || d >= omp_get_num_devices ())
d = id;
void *p = omp_target_alloc (sizeof (int), d);
if (p == NULL)
return 0;
if (omp_target_associate_ptr (a, p, sizeof (int), 0, d) != 0)
return 0;
if (omp_get_mapped_ptr (a, d) != (d == id ? a : p))
abort ();
if (omp_target_disassociate_ptr (a, d) != 0)
abort ();
if (omp_get_mapped_ptr (a, d) != (d == id ? a : NULL))
abort ();
#pragma omp target data map(alloc: a, b[1:0]) device(d)
{
#pragma omp target map(from: p1, p2) map(alloc: a, b[1:0]) device(d)
{
p1 = &a;
p2 = &b[1];
}
/* This is probably expected to be p1/p2 instead of NULL. Zero-length arrays
as list items of the map clause are currently not inserted into the mem
map ?! However by returning NULL, omp_get_mapped_ptr is consistent with
omp_target_is_present. */
if (omp_get_mapped_ptr (a, d) != NULL
|| omp_get_mapped_ptr (&b[1], d) != NULL)
abort ();
}
omp_target_free (p, d);
return 0;
}
|
