libgomp/testsuite/libgomp.c/pr26943-2.c

/* PR c++/26943 */
/* { dg-do run } */

extern int omp_set_dynamic (int);
extern void abort (void);
extern void GOMP_barrier (void);

int a = 8, b = 12, c = 16, d = 20, j = 0;
char e[10] = "a", f[10] = "b", g[10] = "c", h[10] = "d";

int
main (void)
{
  int i;
  omp_set_dynamic (0);
#pragma omp parallel for shared (a, e) firstprivate (b, f) \
			 lastprivate (c, g) private (d, h) \
			 schedule (static, 1) num_threads (4) \
			 reduction (+:j)
  for (i = 0; i < 4; i++)
    {
      if (a != 8 || b != 12 || e[0] != 'a' || f[0] != 'b')
	j++;
      GOMP_barrier ();
#pragma omp atomic
      a += i;
      b += i;
      c = i;
      d = i;
#pragma omp atomic
      e[0] += i;
      f[0] += i;
      g[0] = 'g' + i;
      h[0] = 'h' + i;
      GOMP_barrier ();
      if (a != 8 + 6 || b != 12 + i || c != i || d != i)
	j += 8;
      if (e[0] != 'a' + 6 || f[0] != 'b' + i || g[0] != 'g' + i)
	j += 64;
      if (h[0] != 'h' + i)
	j += 512;
    }
  if (j || a != 8 + 6 || b != 12 || c != 3 || d != 20)
    abort ();
  if (e[0] != 'a' + 6 || f[0] != 'b' || g[0] != 'g' + 3 || h[0] != 'd')
    abort ();
  return 0;
}