[Bug c++/94462] [10 Regression] ICE in duplicate_decls, at cp/decl.c:1456 since r10-6586-gd6ef77e023cfe0bb

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94462

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:467fc7c83abfe8fca8b75defac7c89f6c75bf9d7

commit r10-7580-g467fc7c83abfe8fca8b75defac7c89f6c75bf9d7
Author: Jason Merrill <jason@redhat.com>
Date:   Mon Apr 6 18:19:07 2020 -0400

    c++: Fix ICE with implicit operator== [PR94462]

    duplicate_decls assumed that any TREE_ARTIFICIAL function at namespace
scope
    was a built-in function, but now in C++20 it's possible to have an
    implicitly declared hidden friend operator==.  We just need to move the
    assert into the if condition.

    gcc/cp/ChangeLog
    2020-04-06  Jason Merrill  <jason@redhat.com>

            PR c++/94462
            * decl.c (duplicate_decls): Fix handling of DECL_HIDDEN_FRIEND_P.