libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-2.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])
  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
  26 #pragma acc data copyout (b[0:N])
  27   {
  28 #pragma acc kernels present (b[0:N])
  29     {
  30       for (COUNTERTYPE i = 0; i < N; i++)
  31         b[i] = i * 4;
  32     }
  33   }
  34
  35 #pragma acc data copyin (a[0:N], b[0:N]) copyout (c[0:N])
  36   {
  37 #pragma acc kernels present (a[0:N], b[0:N], c[0:N])
  38     {
  39       for (COUNTERTYPE ii = 0; ii < N; ii++)
  40         c[ii] = a[ii] + b[ii];
  41     }
  42   }
  43
  44   for (COUNTERTYPE i = 0; i < N; i++)
  45     if (c[i] != a[i] + b[i])
  46       abort ();
  47
  48   free (a);
  49   free (b);
  50   free (c);
  51
  52   return 0;
  53 }