[Bug tree-optimization/106044] Spurious warning: -Wrestrict for adding std::strings (__builtin_memcpy)

[cuzdav at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106044

--- Comment #1 from Chris Uzdavinis <cuzdav at gmail dot com> ---
only in c++20, too.