gcc/libgomp/testsuite/libgomp.c/target-34.c

extern void abort (void);

int
main ()
{
  int a = 1, b = 2, c = 4, d[7];
  #pragma omp parallel
  {
    #pragma omp single
    {
      #pragma omp taskgroup
      {
	#pragma omp target enter data nowait map (to: a, b, c) depend(out: d[0])
	#pragma omp target nowait map (alloc: a, b) depend(in: d[0]) depend(out: d[1])
	{
	  #pragma omp atomic update
	  a |= 4;
	  #pragma omp atomic update
	  b |= 8;
	}
	#pragma omp target nowait map (alloc: a, c) depend(in: d[0]) depend(out: d[2])
	{
	  #pragma omp atomic update
	  a |= 16;
	  #pragma omp atomic update
	  c |= 32;
	}
	#pragma omp target exit data nowait map (from: a, b, c) depend(in: d[1], d[2])
      }
      if (a != 21 || b != 10 || c != 36)
	abort ();
      #pragma omp target map (tofrom: a, b) nowait
      {
	a &= ~16;
	b &= ~2;
      }
      #pragma omp target map (tofrom: c) nowait
      {
	c |= 8;
      }
    } /* Implicit barrier here.  */
    #pragma omp single
    {
      if (a != 5 || b != 8 || c != 44)
	abort ();
      #pragma omp target map (tofrom: a, b) nowait
      {
	a |= 32;
	b |= 4;
      }
      #pragma omp target map (tofrom: c) nowait
      c &= ~4;
      #pragma omp taskwait
      if (a != 37 || b != 12 || c != 40)
	abort ();
      #pragma omp target nowait map (tofrom: a, b) depend(out: d[3])
      {
	#pragma omp atomic update
	a = a + 9;
	b -= 8;
      }
      #pragma omp target nowait map (tofrom: a, c) depend(out: d[4])
      {
	#pragma omp atomic update
	a = a + 4;
	c >>= 1;
      }
      #pragma omp task if (0) depend (in: d[3], d[4]) shared (a, b, c)
      if (a != 50 || b != 4 || c != 20)
	abort ();
      #pragma omp task shared (a)
      a += 50;
      #pragma omp target nowait map (tofrom: b)
      b++;
      #pragma omp target map (tofrom: c) nowait
      c--;
      #pragma omp taskwait
      if (a != 100 || b != 5 || c != 19)
	abort ();
      #pragma omp target map (tofrom: a) nowait depend(out: d[5])
      a++;
      #pragma omp target map (tofrom: b) nowait depend(out: d[6])
      b++;
      #pragma omp target map (tofrom: a, b) depend(in: d[5], d[6])
      {
	if (a != 101 || b != 6)
	  a = -9;
	else
	  {
	    a = 24;
	    b = 38;
	  }
      }
      if (a != 24 || b != 38)
	abort ();
    } /* Implicit barrier here.  */
    #pragma omp master
    {
      #pragma omp target nowait map (tofrom: a, b)
      {
	a *= 2;
	b++;
      }
      #pragma omp target map (tofrom: c) nowait
      c--;
    }
    #pragma omp barrier
    if (a != 48 || b != 39 || c != 18)
      abort ();
  }
  return 0;
}