[Bug c++/104234] ICE with -fmodules-ts and std::map/_Rb_tree

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104234

--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathaniel Shead <nsh...@gcc.gnu.org>:

https://gcc.gnu.org/g:ab3daffcbf35566d468c3028e48068a481048baf

commit r14-6394-gab3daffcbf35566d468c3028e48068a481048baf
Author: Nathaniel Shead <nathanielosh...@gmail.com>
Date:   Thu Nov 23 23:15:19 2023 +1100

    c++: Clear uninstantiated template friend when instantiating [PR104234]

    Otherwise attempting to get the originating module declaration ICEs
    because the DECL_CHAIN of an instantiated friend template is no longer
    its context.

            PR c++/104234
            PR c++/112580

    gcc/cp/ChangeLog:

            * pt.cc (tsubst_template_decl): Clear
            DECL_UNINSTANTIATED_TEMPLATE_FRIEND_P.

    gcc/testsuite/ChangeLog:

            * g++.dg/modules/pr104234.C: New test.

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