tree 8644c66b86e26b50856cdd59f0a61ba85c418d91
parent e14630158dd9d908ac9c484a7458e738a0e1d236
author AndreyChurbanov <andrey.churbanov@intel.com> 1634575710 +0300
committer Copybara-Service <copybara-worker@google.com> 1634575842 -0700

[OpenMP] libomp: add check of task function pointer for NULL.

This patch allows to simplify compiler implementation on "taskwait nowait"
construct. The "taskwait nowait" is semantically equivalent to the empty task.
Instead of creating an empty routine as a task entry, compiler can just send
NULL pointer to the runtime. Then the runtime will make all the work with
dependences and return because of the absent task routine.

Differential Revision: https://reviews.llvm.org/D112015

GitOrigin-RevId: 63f8099e233c37bae1dcf2629ec62db8de6cc356