[Bug tree-optimization/69908] recognizing idioms that check for a buffer of all-zeros could make *much* better code

[tetra2005 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908

--- Comment #3 from Yuri Gribov <tetra2005 at gmail dot com> ---
As noted in comments, this is more about adding new API to Glibc than GCC (they
have corresponding https://sourceware.org/bugzilla/show_bug.cgi?id=19920 about
this). So can this be closed?