Commit Graph

3 Commits

Author SHA1 Message Date
Jonas Hahnfeld 479088eefa Correct wrong comment in bug_nested_proxy_task.c
The nested proxy task does not have dependencies.

llvm-svn: 293472
2017-01-30 09:51:02 +00:00
Jonas Hahnfeld ca32babfa7 Mark tests with task dependencies as unsupported with GCC
llvm-svn: 277996
2016-08-08 11:52:49 +00:00
Jonas Hahnfeld 69f8511f8f __kmp_free_task: Fix for serial explicit tasks producing proxy tasks
Consider the following code which may be executed by a serial team:

    int dep;
    #pragma omp target nowait depend(out: dep)
    {
        sleep(1);
    }
    #pragma omp task depend(in: dep)
    {
        #pragma omp target nowait
        {
            sleep(1);
        }
    }

Here the explicit task may not be freed until the nested proxy task has
finished. The current code hasn't considered this and called __kmp_free_task
anyway which triggered an assert because of remaining incomplete children:

    KMP_DEBUG_ASSERT( TCR_4(taskdata->td_incomplete_child_tasks) == 0 );

Differential Revision: https://reviews.llvm.org/D23115

llvm-svn: 277991
2016-08-08 10:08:07 +00:00