[Bug c++/80265] __builtin_{memcmp,memchr,strlen} are not usable in constexpr functions

[palves at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80265

--- Comment #29 from Pedro Alves <palves at redhat dot com> ---
OK, our messages crossed.  Thanks for the clarification.  I can't really
comment on the optimizers.