[Bug c++/122690] [C++23] std::is_implicit_lifetime incorrectly depends on constructor access

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122690

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2025-11-18
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 62828
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62828&action=edit
gcc16-pr122690.patch

That said, here is an untested patch which looks just for triviality and
eligibility of the ctors and triviality and deletion of destructor, not on
their access.