5/7 [Fortran, Patch, Coarray, PR107635] Add send_to_remote

[Andre Vehreschild]

[PATCH 5/7] Fortran: Add send_to_remote [PR107635]

Refactor to use send_to_remote instead of the slow send_by_ref.

gcc/fortran/ChangeLog:

        PR fortran/107635

        * gfortran.h (enum gfc_isym_id): Add SENDGET-isym.
        * gfortran.texi: Add documentation for send_to_remote.
        * resolve.cc (gfc_resolve_code): No longer generate send_by_ref
        when allocatable coarray (component) is on the lhs.
        * rewrite.cc (move_coarray_ref): Move the coarray reference out
        of the given one.  Especially when there is a regular array ref.
        (fixup_comp_refs): Move components refs to a derived type where
        the codim has been removed, aka a new type.
        (split_expr_at_caf_ref): Correctly split the reference chain.
        (remove_caf_ref): Simplify.
        (create_get_callback): Fix some deficiencies.
        (create_allocated_callback): Adapt to new signature of split.
        (create_send_callback): New function.
        (rewrite_caf_send): Rewrite a call to caf_send to
        caf_send_to_remote.
        (coindexed_code_callback): Treat caf_send and caf_sendget
        correctly.
        * trans-decl.cc (gfc_build_builtin_function_decls): Add
        caf_send_to_remote decl.
        * trans-intrinsic.cc (conv_caf_func_index): Ensure the static
        variables created are not in a block-scope.
        (conv_caf_send_to_remote): Translate caf_send_to_remote calls.
        (conv_caf_send): Renamed to conv_caf_sendget.
        (conv_caf_sendget): Renamed from conv_caf_send.
        (gfc_conv_intrinsic_subroutine): Branch correctly for
        conv_caf_send and sendget.
        * trans.h: Correct decl.

libgfortran/ChangeLog:

        * caf/libcaf.h: Add/Correct prototypes for caf_get_from_remote,
        caf_send_to_remote.
        * caf/single.c (struct accessor_hash_t): Rename accessor_t to
        getter_t.
        (_gfortran_caf_register_accessor): Use new name of getter_t.
        (_gfortran_caf_send_to_remote): New function for sending data to
        coarray on a remote image.

gcc/testsuite/ChangeLog:

        * gfortran.dg/coarray/send_char_array_1.f90: Extend test to
        catch more cases.
        * gfortran.dg/coarray_42.f90: Invert tests use, because no
        longer a send is needed when local memory in a coarray is
        allocated.


--
Andre Vehreschild * Email: vehre ad gmx dot de
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