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

   1 /* PR c++/26943 */
   2 /* { dg-do run } */
   3
   4 extern int omp_set_dynamic (int);
   5 extern void abort (void);
   6 extern void GOMP_barrier (void);
   7
   8 int a = 8, b = 12, c = 16, d = 20, j = 0;
   9 char e[10] = "a", f[10] = "b", g[10] = "c", h[10] = "d";
  10
  11 int
  12 main (void)
  13 {
  14   int i;
  15   omp_set_dynamic (0);
  16 #pragma omp parallel for shared (a, e) firstprivate (b, f) \
  17                          lastprivate (c, g) private (d, h) \
  18                          schedule (static, 1) num_threads (4) \
  19                          reduction (+:j)
  20   for (i = 0; i < 4; i++)
  21     {
  22       if (a != 8 || b != 12 || e[0] != 'a' || f[0] != 'b')
  23         j++;
  24       GOMP_barrier ();
  25 #pragma omp atomic
  26       a += i;
  27       b += i;
  28       c = i;
  29       d = i;
  30 #pragma omp atomic
  31       e[0] += i;
  32       f[0] += i;
  33       g[0] = 'g' + i;
  34       h[0] = 'h' + i;
  35       GOMP_barrier ();
  36       if (a != 8 + 6 || b != 12 + i || c != i || d != i)
  37         j += 8;
  38       if (e[0] != 'a' + 6 || f[0] != 'b' + i || g[0] != 'g' + i)
  39         j += 64;
  40       if (h[0] != 'h' + i)
  41         j += 512;
  42     }
  43   if (j || a != 8 + 6 || b != 12 || c != 3 || d != 20)
  44     abort ();
  45   if (e[0] != 'a' + 6 || f[0] != 'b' || g[0] != 'g' + 3 || h[0] != 'd')
  46     abort ();
  47   return 0;
  48 }