gcc/libgomp/testsuite/libgomp.c-c++-common/target-memcpy-rect-async-2.c

/* Test for omp_target_memcpy_rect_async considering dependence objects.  */

#include <omp.h>
#include <stdlib.h>

#define NUM_DIMS 3

int
main ()
{
  int d = omp_get_default_device ();
  int id = omp_get_initial_device ();
  int a[128], b[64], c[128], e[16], q[128], i;
  void *p;

  if (d < 0 || d >= omp_get_num_devices ())
    d = id;

  p = omp_target_alloc (130 * sizeof (int), d);
  if (p == NULL)
    return 0;

  for (i = 0; i < 128; i++)
    q[i] = 0;
  if (omp_target_memcpy (p, q, 128 * sizeof (int), 0, 0, d, id) != 0)
    abort ();

  size_t volume[NUM_DIMS] = { 2, 2, 3 };
  size_t dst_offsets[NUM_DIMS] = { 0, 0, 0 };
  size_t src_offsets[NUM_DIMS] = { 0, 0, 0 };
  size_t dst_dimensions[NUM_DIMS] = { 3, 4, 5 };
  size_t src_dimensions[NUM_DIMS] = { 2, 3, 4 };

  for (i = 0; i < 128; i++)
    a[i] = 42;
  for (i = 0; i < 64; i++)
    b[i] = 24;
  for (i = 0; i < 128; i++)
    c[i] = 0;
  for (i = 0; i < 16; i++)
    e[i] = 77;

  omp_depend_t obj[2];

  #pragma omp parallel num_threads(5)
  #pragma omp single
  {
    #pragma omp task depend (out: p)
    omp_target_memcpy (p, a, 128 * sizeof (int), 0, 0, d, id);

    #pragma omp task depend(inout: p)
    omp_target_memcpy (p, b, 64 * sizeof (int), 0, 0, d, id);

    #pragma omp task depend(out: c)
    for (i = 0; i < 128; i++)
      c[i] = i + 1;

    #pragma omp depobj(obj[0]) depend(inout: p)
    #pragma omp depobj(obj[1]) depend(in: c)

    /*  This produces: 1 2 3 - - 5 6 7 - - at positions 0..9 and
		       13 14 15 - - 17 18 19 - - at positions 20..29.  */
    omp_target_memcpy_rect_async (p, c, sizeof (int), NUM_DIMS, volume,
				  dst_offsets, src_offsets, dst_dimensions,
				  src_dimensions, d, id, 2, obj);

    #pragma omp task depend(in: p)
    omp_target_memcpy (p, e, 16 * sizeof (int), 0, 0, d, id);
  }

  #pragma omp taskwait

  if (omp_target_memcpy (q, p, 128 * sizeof(int), 0, 0, id, d) != 0)
    abort ();

  for (i = 0; i < 16; ++i)
    if (q[i] != 77)
      abort ();
  if (q[20] != 13 || q[21] != 14 || q[22] != 15 || q[25] != 17 || q[26] != 18
      || q[27] != 19)
    abort ();
  for (i = 28; i < 64; ++i)
    if (q[i] != 24)
      abort ();
  for (i = 64; i < 128; ++i)
    if (q[i] != 42)
      abort ();

  omp_target_free (p, d);
  return 0;
}