Kwok Cheung Yeung
d656bfda2d
This adds support for the task detach clause to taskwait and taskgroup, and simplifies the handling of the detach clause by moving most of the extra handling required for detach tasks to omp_fulfill_event. 2021-02-25 Kwok Cheung Yeung <kcy@codesourcery.com> Jakub Jelinek <jakub@redhat.com> libgomp/ PR libgomp/98738 * libgomp.h (enum gomp_task_kind): Add GOMP_TASK_DETACHED. (struct gomp_task): Replace detach and completion_sem fields with union containing completion_sem and detach_team. Add deferred_p field. (struct gomp_team): Remove task_detach_queue. * task.c: Include assert.h. (gomp_init_task): Initialize deferred_p and completion_sem fields. Rearrange initialization order of fields. (task_fulfilled_p): Delete. (GOMP_task): Use address of task as the event handle. Remove initialization of detach field. Initialize deferred_p field. Use automatic local for completion_sem. Initialize detach_team field for deferred tasks. (gomp_barrier_handle_tasks): Remove handling of task_detach_queue. Set kind of suspended detach task to GOMP_TASK_DETACHED and decrement task_running_count. Move finish_cancelled block out of else branch. Relocate call to gomp_team_barrier_done. (GOMP_taskwait): Handle tasks with completion events that have not been fulfilled. (GOMP_taskgroup_end): Likewise. (omp_fulfill_event): Use address of task as event handle. Post to completion_sem for undeferred tasks. Clear detach_team if task has not finished. For finished tasks, handle post-execution tasks, call gomp_team_barrier_wake if necessary, and free task. * team.c (gomp_new_team): Remove initialization of task_detach_queue. (free_team): Remove free of task_detach_queue. * testsuite/libgomp.c-c++-common/task-detach-1.c: Fix formatting. * testsuite/libgomp.c-c++-common/task-detach-2.c: Fix formatting. * testsuite/libgomp.c-c++-common/task-detach-3.c: Fix formatting. * testsuite/libgomp.c-c++-common/task-detach-4.c: Fix formatting. * testsuite/libgomp.c-c++-common/task-detach-5.c: Fix formatting. Change data-sharing of detach events on enclosing parallel to private. * testsuite/libgomp.c-c++-common/task-detach-6.c: Likewise. Remove taskwait directive. * testsuite/libgomp.c-c++-common/task-detach-7.c: New. * testsuite/libgomp.c-c++-common/task-detach-8.c: New. * testsuite/libgomp.c-c++-common/task-detach-9.c: New. * testsuite/libgomp.c-c++-common/task-detach-10.c: New. * testsuite/libgomp.c-c++-common/task-detach-11.c: New. * testsuite/libgomp.fortran/task-detach-1.f90: Fix formatting. * testsuite/libgomp.fortran/task-detach-2.f90: Fix formatting. * testsuite/libgomp.fortran/task-detach-3.f90: Fix formatting. * testsuite/libgomp.fortran/task-detach-4.f90: Fix formatting. * testsuite/libgomp.fortran/task-detach-5.f90: Fix formatting. Change data-sharing of detach events on enclosing parallel to private. * testsuite/libgomp.fortran/task-detach-6.f90: Likewise. Remove taskwait directive. * testsuite/libgomp.fortran/task-detach-7.f90: New. * testsuite/libgomp.fortran/task-detach-8.f90: New. * testsuite/libgomp.fortran/task-detach-9.f90: New. * testsuite/libgomp.fortran/task-detach-10.f90: New. * testsuite/libgomp.fortran/task-detach-11.f90: New.
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