[Bug libstdc++/113807] [performance] bitset::set not using memset opportunity

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113807

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
It can also for an effective memset to a non-constant, but it has to be
uniform,
thus 'char'.