diff options
| author | Kwok Cheung Yeung <kcy@codesourcery.com> | 2021-05-14 09:59:11 -0700 |
|---|---|---|
| committer | Kwok Cheung Yeung <kcy@codesourcery.com> | 2021-05-17 13:15:08 -0700 |
| commit | ba886d0c488ebea2eb2df95c2069a3e207704dac (patch) | |
| tree | c9977390cd9f7894ebc1837bbce68272f951d934 /libgomp/task.c | |
| parent | 5d93261bc03c9c6891ccd8c77ab22b2a09971905 (diff) | |
| download | gcc-ba886d0c488ebea2eb2df95c2069a3e207704dac.zip gcc-ba886d0c488ebea2eb2df95c2069a3e207704dac.tar.gz gcc-ba886d0c488ebea2eb2df95c2069a3e207704dac.tar.bz2 | |
openmp: Notify team barrier of pending tasks in omp_fulfill_event
The team barrier should be notified of any new tasks that become runnable
as the result of a completing task, otherwise the barrier threads might
not resume processing available tasks, resulting in a hang.
2021-05-17 Kwok Cheung Yeung <kcy@codesourcery.com>
libgomp/
* task.c (omp_fulfill_event): Call gomp_team_barrier_set_task_pending
if new tasks generated.
* testsuite/libgomp.c-c++-common/task-detach-13.c: New.
Diffstat (limited to 'libgomp/task.c')
| -rw-r--r-- | libgomp/task.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libgomp/task.c b/libgomp/task.c index 1c73c75..feb4796 100644 --- a/libgomp/task.c +++ b/libgomp/task.c @@ -2460,6 +2460,7 @@ omp_fulfill_event (omp_event_handle_t event) if (new_tasks > 0) { /* Wake up threads to run new tasks. */ + gomp_team_barrier_set_task_pending (&team->barrier); do_wake = team->nthreads - team->task_running_count; if (do_wake > new_tasks) do_wake = new_tasks; |