[Bug libstdc++/98226] Slow std::countr_one

[zaikin.icc at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98226

--- Comment #7 from Oleg Zaikin <zaikin.icc at gmail dot com> ---
(In reply to Jonathan Wakely from comment #5)
> I've removed some redundant code from them, but not changed the indirection
> that this PR complains about. I don't plan to change that.

Thank you! I've got your point regarding the indirection.