[Bug c++/104669] [11/12 Regression] ICE in is_function_default_version, at attribs.cc:1219

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104669

--- Comment #4 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:791a968630b3846b614a435b9a75a52f29147a08

commit r12-8115-g791a968630b3846b614a435b9a75a52f29147a08
Author: Jason Merrill <jason@redhat.com>
Date:   Tue Apr 12 16:40:14 2022 -0400

    c++: local function versioning [PR104669]

    There were two problems with this testcase: we weren't copying the target
    attribute from the second declaration to the global alias for the first
    one (duplicate_decls hunk), and then we were treating the third one as
    matching the earlier one even though both are versioned (decls_match hunk).
    The latter change required a fix to find_last_decl (used for attribute
    mismatch warnings) to give up if we see a versioned function, as in that
    case we can't determine whether the decls match, because we are still in
the
    process of setting the attributes on the new decl.

            PR c++/104669

    gcc/cp/ChangeLog:

            * decl.cc (decls_match): Compare versions even if not recording.
            (duplicate_decls): Propagate attributes to alias.
            * decl2.cc (find_last_decl): Give up if versioned.

    gcc/testsuite/ChangeLog:

            * g++.target/i386/mv31.C: New test.