libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-6.c

#include <assert.h>

/* Test of gang-private aggregate variable declared on loop directive, with
   broadcasting to partitioned workers.  */

typedef struct {
  int x, y, z;
  int attr[13];
} vec3;

int
main (int argc, char* argv[])
{
  int i, arr[32 * 32];
  vec3 pt;

  for (i = 0; i < 32 * 32; i++)
    arr[i] = i;

  #pragma acc kernels copy(arr)
  {
    #pragma acc loop gang private(pt)
    for (i = 0; i < 32; i++)
      {
        pt.x = i;
	pt.y = i * 2;
	pt.z = i * 4;
	pt.attr[5] = i * 6;

	#pragma acc loop worker
	for (int j = 0; j < 32; j++)
	  arr[i * 32 + j] += pt.x + pt.y + pt.z + pt.attr[5];
      }
  }

  for (i = 0; i < 32 * 32; i++)
    assert (arr[i] == i + (i / 32) * 13);

  return 0;
}