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Subject: [Bug other/67300] -foffload* undocumented
Date: Tue, 29 Jun 2021 14:00:23 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D67300

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tobias Burnus <burnus@gcc.gnu.org>:

https://gcc.gnu.org/g:33c4e466243f2d0459d9a4d0cadc1b38a3741f3e

commit r12-1871-g33c4e466243f2d0459d9a4d0cadc1b38a3741f3e
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Tue Jun 29 15:58:21 2021 +0200

    Add 'default' to -foffload=3D; document that flag [PR67300]

    As -foffload=3D{options,targets,targets=3Doptions} is very convoluted,
    it has been split into -foffload=3Dtargets (supporting the old syntax
    for backward compatibilty) and -foffload-options=3D{options,target=3Dop=
tions}.

    Only the new syntax is documented.

    Additionally, -foffload=3Ddefault is supported, which can reset the
    devices after -foffload=3Ddisable / -foffload=3Dtargets to the default,
    if needed.

    gcc/ChangeLog:

            PR other/67300
            * common.opt (-foffload=3D): Update description.
            (-foffload-options=3D): New.
            * doc/invoke.texi (C Language Options): Document
            -foffload and -foffload-options.
            * gcc.c (check_offload_target_name): New, split off from
            handle_foffload_option.
            (check_foffload_target_names): New.
            (handle_foffload_option): Handle -foffload=3Ddefault.
            (driver_handle_option): Update for -foffload-options.
            * lto-opts.c (lto_write_options): Use -foffload-options
            instead of -foffload.
            * lto-wrapper.c (merge_and_complain, append_offload_options):
            Likewise.
            * opts.c (common_handle_option): Likewise.

    libgomp/ChangeLog:

            PR other/67300
            * testsuite/libgomp.c-c++-common/reduction-16.c: Replace
            -foffload=3Dnvptx-none=3D by -foffload-options=3Dnvptx-none=3D =
to
            avoid disabling other offload targets.
            * testsuite/libgomp.c-c++-common/reduction-5.c: Likewise.
            * testsuite/libgomp.c-c++-common/reduction-6.c: Likewise.
            * testsuite/libgomp.c/target-44.c: Likewise.=