1  /* Test for omp_target_memcpy_async considering dependence objects.  */
       2  
       3  #include <omp.h>
       4  #include <stdlib.h>
       5  
       6  int
       7  main ()
       8  {
       9    int d = omp_get_default_device ();
      10    int id = omp_get_initial_device ();
      11    int a[128], b[64], c[32], e[16], q[128], i;
      12    void *p;
      13  
      14    if (d < 0 || d >= omp_get_num_devices ())
      15      d = id;
      16  
      17    p = omp_target_alloc (130 * sizeof (int), d);
      18    if (p == NULL)
      19      return 0;
      20  
      21    for (i = 0; i < 128; ++i)
      22      a[i] = i + 1;
      23    for (i = 0; i < 64; ++i)
      24      b[i] = i + 2;
      25    for (i = 0; i < 32; i++)
      26      c[i] = 0;
      27    for (i = 0; i < 16; i++)
      28      e[i] = i + 4;
      29  
      30    omp_depend_t obj[2];
      31  
      32    #pragma omp parallel num_threads(5)
      33    #pragma omp single
      34    {
      35      #pragma omp task depend(out: p)
      36      omp_target_memcpy (p, a, 128 * sizeof (int), 0, 0, d, id);
      37  
      38      #pragma omp task depend(inout: p)
      39      omp_target_memcpy (p, b, 64 * sizeof (int), 0, 0, d, id);
      40  
      41      #pragma omp task depend(out: c)
      42      for (i = 0; i < 32; i++)
      43        c[i] = i + 3;
      44  
      45      #pragma omp depobj(obj[0]) depend(inout: p)
      46      #pragma omp depobj(obj[1]) depend(in: c)
      47      omp_target_memcpy_async (p, c, 32 * sizeof (int), 0, 0, d, id, 2, obj);
      48  
      49      #pragma omp task depend(in: p)
      50      omp_target_memcpy (p, e, 16 * sizeof (int), 0, 0, d, id);
      51    }
      52  
      53    #pragma omp taskwait
      54  
      55    for (i = 0; i < 128; ++i)
      56      q[i] = 0;
      57    omp_target_memcpy (q, p, 128 * sizeof(int), 0, 0, id, d);
      58    for (i = 0; i < 16; ++i)
      59      if (q[i] != i + 4)
      60        abort ();
      61    for (i = 16; i < 32; ++i)
      62      if (q[i] != i + 3)
      63        abort ();
      64    for (i = 32; i < 64; ++i)
      65      if (q[i] != i + 2)
      66        abort ();
      67    for (i = 64; i < 128; ++i)
      68      if (q[i] != i + 1)
      69        abort ();
      70  
      71    omp_target_free (p, d);
      72  
      73    return 0;
      74  }