libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-data.c

   1 #include <stdlib.h>
   2
   3 #define N (1024 * 512)
   4 #define COUNTERTYPE unsigned int
   5
   6 int
   7 main (void)
   8 {
   9   unsigned int *__restrict a;
  10   unsigned int *__restrict b;
  11   unsigned int *__restrict c;
  12
  13   a = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  14   b = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  15   c = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  16
  17 #pragma acc data copyout (a[0:N], b[0:N], c[0:N])
  18   {
  19 #pragma acc kernels present (a[0:N])
  20     {
  21       for (COUNTERTYPE i = 0; i < N; i++)
  22         a[i] = i * 2;
  23     }
  24
  25 #pragma acc kernels present (b[0:N])
  26     {
  27       for (COUNTERTYPE i = 0; i < N; i++)
  28         b[i] = i * 4;
  29     }
  30
  31 #pragma acc kernels present (a[0:N], b[0:N], c[0:N])
  32     {
  33       for (COUNTERTYPE ii = 0; ii < N; ii++)
  34         c[ii] = a[ii] + b[ii];
  35     }
  36   }
  37
  38   for (COUNTERTYPE i = 0; i < N; i++)
  39     if (c[i] != a[i] + b[i])
  40       abort ();
  41
  42   free (a);
  43   free (b);
  44   free (c);
  45
  46   return 0;
  47 }