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From: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Tue, 29 Mar 2022 14:19:07 -0500
Message-ID: <CAFUsyfL7rzNMYMxv_VLiRPMA9DYHoyeSrQwKpLOMO84Hx4SQ9Q@mail.gmail.com>
Subject: Re: RFC: Backport architecture specific improvements to release
 branches
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
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On Tue, Mar 29, 2022 at 2:02 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> On Tue, Mar 29, 2022 at 10:36 AM Noah Goldstein <goldstein.w.n@gmail.com> wrote:
> >
> > On Tue, Mar 29, 2022 at 12:29 PM H.J. Lu via Libc-alpha
> > <libc-alpha@sourceware.org> wrote:
> > >
> > > Hi,
> > >
> > > We'd like to backport architecture specific improvements to release branches,
> > > similar to backports under sysdeps/x86_64/multiarch on users/intel/x86/2.34
> > > branch:
> > >
> > > https://gitlab.com/x86-glibc/glibc/-/commits/users/intel/x86/2.34
> >
> > Given that the compiler does not emit `bzero` and we dropped the `__memsetzero`
> > optimization maybe best w.o:
> > https://gitlab.com/x86-glibc/glibc/-/commit/76e17e47789ef4faf1367b2e48c19763559c79a0
> > for the sake of code size.
>
> I like to make the release branch as close to the master branch as possible
> to make backporting easier.
>

Should we drop the optimized bzero on master? Or keep both?
> > >
> > > Any comments?
> > >
> > > Thanks.
> > >
> > > --
> > > H.J.
>
>
>
> --
> H.J.