From: "H.J. Lu" <hjl.tools@gmail.com>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: RFC: Backport architecture specific improvements to release branches
Date: Tue, 29 Mar 2022 14:21:11 -0700 [thread overview]
Message-ID: <CAMe9rOoWfhZSGAkjPrpcu3wy3QHu=d1sVzf4EisORz_PFnEzNg@mail.gmail.com> (raw)
In-Reply-To: <c07e36c0-1a6b-d412-e522-f1c807f53791@linaro.org>
On Tue, Mar 29, 2022 at 12:30 PM Adhemerval Zanella via Libc-alpha
<libc-alpha@sourceware.org> wrote:
>
>
>
> On 29/03/2022 16:19, Noah Goldstein via Libc-alpha wrote:
> > 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?
>
> As a side note, I have removed bzero optimization on all targets except x86.
> It is on my plan to clean x86 as well.
This will be included in backport.
--
H.J.
next prev parent reply other threads:[~2022-03-29 21:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-29 17:28 H.J. Lu
2022-03-29 17:36 ` Noah Goldstein
2022-03-29 19:02 ` H.J. Lu
2022-03-29 19:19 ` Noah Goldstein
2022-03-29 19:29 ` Adhemerval Zanella
2022-03-29 21:21 ` H.J. Lu [this message]
2022-03-29 19:32 ` Adhemerval Zanella
2022-03-29 19:33 ` Andreas K. Huettel
2022-03-29 19:36 ` Adhemerval Zanella
2022-03-29 19:40 ` Andreas K. Huettel
2022-04-12 11:49 ` Florian Weimer
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