[Bug tree-optimization/105651] [12 Regression] bogus "may overlap" memcpy warning with std::string and operator+ at -O3

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105651

--- Comment #28 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Jonathan Wakely
<r...@gcc.gnu.org>:

https://gcc.gnu.org/g:636795a6dfc17ead7b22b9f76b0fc47bdb9d357d

commit r12-9716-g636795a6dfc17ead7b22b9f76b0fc47bdb9d357d
Author: Jason Merrill <ja...@redhat.com>
Date:   Thu Aug 18 23:53:16 2022 -0400

    libstdc++: avoid bogus -Wrestrict [PR105651]

            PR tree-optimization/105651

    libstdc++-v3/ChangeLog:

            * include/bits/basic_string.tcc (_M_replace): Add an assert
            to avoid -Wrestrict false positive.