[Bug c++/99599] [12/13 Regression] Concepts requirement falsely reporting cyclic dependency, breaks tag_invoke pattern

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99599

--- Comment #31 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Jason Merrill <ja...@gcc.gnu.org>:

https://gcc.gnu.org/g:2ee1fce9fc35de21b28823ccae433c90a0ce270b

commit r16-651-g2ee1fce9fc35de21b28823ccae433c90a0ce270b
Author: Jason Merrill <ja...@redhat.com>
Date:   Wed May 14 10:23:32 2025 -0400

    c++: one more PR99599 tweak

    Patrick pointed out that if the parm/arg types aren't complete yet at this
    point, it would affect the type_has_converting_constructor and
    TYPE_HAS_CONVERSION tests.  I don't have a testcase, but it makes sense for
    safety.

            PR c++/99599

    gcc/cp/ChangeLog:

            * pt.cc (conversion_may_instantiate_p): Make sure
            classes are complete.