1  /* PR c++/34513 */
       2  /* { dg-do run } */
       3  
       4  #include <omp.h>
       5  
       6  extern void abort ();
       7  
       8  static int errors = 0;
       9  static int thrs = 4;
      10  
      11  int
      12  main ()
      13  {
      14    omp_set_dynamic (0);
      15  
      16    #pragma omp parallel num_threads (thrs)
      17    {
      18      static int shrd = 0;
      19  
      20      #pragma omp atomic
      21        shrd += 1;
      22  
      23      #pragma omp barrier
      24  
      25      if (shrd != thrs)
      26        #pragma omp atomic
      27  	errors += 1;
      28    }
      29  
      30    if (errors)
      31      abort ();
      32    return 0;
      33  }