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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/114630] [14/15 Regression] [modules] building module with
 submodule causes corrupt gcm
Date: Thu, 02 May 2024 06:43:18 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114630

--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathaniel Shead <nshead@gcc.gnu.org>:

https://gcc.gnu.org/g:02917ac4528e32d1b2d0da5f45ef5937c56942cd

commit r15-101-g02917ac4528e32d1b2d0da5f45ef5937c56942cd
Author: Nathaniel Shead <nathanieloshead@gmail.com>
Date:   Thu Apr 11 19:15:35 2024 +1000

    c++: Don't emit unused GMF partial specializations [PR114630]

    The change in r14-8408 to also emit partial specializations in the
    global module fragment caused the regression in the linked PR; this
    patch fixes this by restricting emitted GM partial specializations to
    those that are actually used.

            PR c++/114630

    gcc/cp/ChangeLog:

            * module.cc (depset::hash::add_partial_entities): Mark GM
            specializations as unreached.
            (depset::hash::find_dependencies): Also reach entities in the
            DECL_TEMPLATE_SPECIALIZATIONS list.

    gcc/testsuite/ChangeLog:

            * g++.dg/modules/partial-3.C: New test.

    Signed-off-by: Nathaniel Shead <nathanieloshead@gmail.com>=