On Thu, Sep 24, 2020 at 11:50 AM Jakub Jelinek via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > On Thu, Sep 24, 2020 at 11:41:00AM +0200, Tobias Burnus wrote: > > Following Jakub's suggestion, I also added > > __attribute__((used)) > > to the tree belonging to both tables in omp-offload.c's omp_finish > > but that did not help, either. > > That is really DECL_PRESERVED_P, the attribute is turned into that, so no > need to have attribute around after setting it. > That is needed (but already done), but clearly not sufficient. > What we need to emulate is the effect of all those decls being referenced > from a single (preserved) initializer, which would need to refer to their > names too. Except we don't really have such a var and initializer > constructed early enough probably. > Now, for vars with initializers I think there is > record_references_in_initializer to remember those references, so do we need > to emulate that behavior? > Or, see what effects it has on the partitioning, and if it means forcing all > the referenced decls that aren't TREE_PUBLIC into the same partition, do it > for the offloading funcs and vars too?
Create the offload table at WPA time so we get to see it during partitioning? > Jakub >
