gcc/libgomp/testsuite/libgomp.graphite/force-parallel-2.c

void abort (void);

void parloop (int N)
{
  int i, j;
  int x[500][500];

  for (i = 0; i < N; i++)
    for (j = 0; j < N; j++)
      x[i][j] = i + j + 3;

  for (i = 0; i < N; i++)
    for (j = 0; j < N; j++)
      if (x[i][j] != i + j + 3)
	abort ();
}

int main(void)
{
  parloop(500);

  return 0;
}

/* Check that parallel code generation part make the right answer.  */
/* { dg-final { scan-tree-dump-times "2 loops carried no dependency" 1 "graphite" } } */
/* { dg-final { scan-tree-dump-times "loopfn" 4 "optimized" } } */