1! { dg-do run }
2
3! Test tasks with detach clause on an offload device.  Each device
4! thread spawns off a chain of tasks in a taskgroup, that can then
5! be executed by any available thread.
6
7program task_detach_10
8  use omp_lib
9
10  integer (kind=omp_event_handle_kind) :: detach_event1, detach_event2
11  integer :: x = 0, y = 0, z = 0
12  integer :: thread_count
13
14  !$omp target map (tofrom: x, y, z) map (from: thread_count)
15    !$omp parallel private (detach_event1, detach_event2)
16      !$omp taskgroup
17	!$omp single
18	  thread_count = omp_get_num_threads ()
19	!$omp end single
20
21	!$omp task detach (detach_event1) untied
22	  !$omp atomic update
23	    x = x + 1
24	!$omp end task
25
26	!$omp task detach (detach_event2) untied
27	  !$omp atomic update
28	    y = y + 1
29	  call omp_fulfill_event (detach_event1)
30	!$omp end task
31
32	!$omp task untied
33	  !$omp atomic update
34	    z = z + 1
35	  call omp_fulfill_event (detach_event2)
36	!$omp end task
37      !$omp end taskgroup
38    !$omp end parallel
39  !$omp end target
40
41  if (x /= thread_count) stop 1
42  if (y /= thread_count) stop 2
43  if (z /= thread_count) stop 3
44end program
45