libgomp/testsuite/libgomp.c/task-4.c

   1 /* { dg-do run } */
   2
   3 #include <omp.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6
   7 int e;
   8
   9 void __attribute__((noinline))
  10 baz (int i, int *p, int j, int *q)
  11 {
  12   if (p[0] != 1 || p[i] != 3 || q[0] != 2 || q[j] != 4)
  13     #pragma omp atomic
  14       e++;
  15 }
  16
  17 void __attribute__((noinline))
  18 foo (int i, int j)
  19 {
  20   int p[i + 1];
  21   int q[j + 1];
  22   memset (p, 0, sizeof (p));
  23   memset (q, 0, sizeof (q));
  24   p[0] = 1;
  25   p[i] = 3;
  26   q[0] = 2;
  27   q[j] = 4;
  28   #pragma omp task firstprivate (p, q)
  29     baz (i, p, j, q);
  30 }
  31
  32 int
  33 main (void)
  34 {
  35   #pragma omp parallel num_threads (4)
  36     foo (5 + omp_get_thread_num (), 7 + omp_get_thread_num ());
  37   if (e)
  38     abort ();
  39   return 0;
  40 }