libgomp/testsuite/libgomp.c/task-3.c

   1 /* { dg-do run } */
   2
   3 #include <omp.h>
   4 extern void abort ();
   5
   6 int l = 5;
   7
   8 int
   9 foo (int i)
  10 {
  11   int j = 7;
  12   const int k = 8;
  13   #pragma omp task firstprivate (i) shared (j, l)
  14   {
  15     #pragma omp critical
  16       {
  17         j += i;
  18         l += k;
  19       }
  20   }
  21   i++;
  22   #pragma omp task firstprivate (i) shared (j, l)
  23   {
  24     #pragma omp critical
  25       {
  26         j += i;
  27         l += k;
  28       }
  29   }
  30   i++;
  31   #pragma omp task firstprivate (i) shared (j, l)
  32   {
  33     #pragma omp critical
  34       {
  35         j += i;
  36         l += k;
  37       }
  38   }
  39   i++;
  40   #pragma omp task firstprivate (i) shared (j, l)
  41   {
  42     #pragma omp critical
  43       {
  44         j += i;
  45         l += k;
  46       }
  47   }
  48   i++;
  49   #pragma omp taskwait
  50   return (i != 8 * omp_get_thread_num () + 4
  51           || j != 4 * i - 3
  52           || k != 8);
  53 }
  54
  55 int
  56 main (void)
  57 {
  58   int r = 0;
  59   #pragma omp parallel num_threads (4) reduction(+:r)
  60     if (omp_get_num_threads () != 4)
  61       {
  62         #pragma omp master
  63           l = 133;
  64       }
  65     else if (foo (8 * omp_get_thread_num ()))
  66       r++;
  67   if (r || l != 133)
  68     abort ();
  69   return 0;
  70 }