gcc/libgomp/testsuite/libgomp.oacc-c-c++-common/host_data-6.c
Thomas Schwinge 1e1fb715cd Add 'libgomp.oacc-c-c++-common/host_data-6.c'
libgomp/
	* testsuite/libgomp.oacc-c-c++-common/host_data-6.c: New file.

From-SVN: r279119
2019-12-09 12:40:08 +01:00

48 lines
781 B
C

/* Call 'acc_memcpy_from_device' inside '#pragma acc host_data'. */
/* { dg-skip-if "" { *-*-* } { "*" } { "-DACC_MEM_SHARED=0" } } */
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <openacc.h>
int
main ()
{
const int SIZE = 318;
const int c0 = 22;
const int c1 = 112;
char *h = (char *) malloc (SIZE);
memset (h, c0, SIZE);
#pragma acc data create (h[0:SIZE - 44])
{
#pragma acc update device (h[0:SIZE - 44])
memset (h, c1, 67);
void *d = h;
#pragma acc host_data use_device (d)
{
acc_memcpy_from_device (h, d, 12);
}
}
for (int i = 0; i < SIZE; ++i)
{
if (i < 12)
assert (h[i] == c0);
else if (i < 67)
assert (h[i] == c1);
else
assert (h[i] == c0);
}
free (h);
return 0;
}