From: Xi Ruoyao <xry111@mengyan1223.wang>
To: Satish Vasudeva <satish.vasudeva@cohesity.com>
Cc: Florian Weimer <fweimer@redhat.com>,
Stefan Ring <stefanrin@gmail.com>,
Xi Ruoyao via Gcc-help <gcc-help@gcc.gnu.org>
Subject: Re: Libatomic 16B
Date: Sat, 26 Feb 2022 01:16:14 +0800 [thread overview]
Message-ID: <9623880f9cd3d097bb76440413eae16b94204cae.camel@mengyan1223.wang> (raw)
In-Reply-To: <CABp-VvJ3jK1Nxc9x6tDu2cgeBcpzUCQJLD2ms8Ko4NSSQVHj1w@mail.gmail.com>
On Fri, 2022-02-25 at 09:05 -0800, Satish Vasudeva wrote:
> Thanks for a quick action on this.
>
> I see that a patch has been posted.
>
> I am new to this, can you please clarify what is the build option for
> new and older Intel CPUs?
You don't need to add any build option if you'll use the posted patch.
The patch uses ifunc (https://sourceware.org/glibc/wiki/GNU_IFUNC)
feature. It means libatomic will automatically select a best variant of
16B atomic load applicable for the CPU when it's loaded at runtime.
> > Opened as https://gcc.gnu.org/PR104688
--
Xi Ruoyao <xry111@mengyan1223.wang>
School of Aerospace Science and Technology, Xidian University
next prev parent reply other threads:[~2022-02-25 17:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-23 16:42 Satish Vasudeva
2022-02-24 16:42 ` Satish Vasudeva
2022-02-25 13:53 ` Florian Weimer
2022-02-24 19:09 ` Xi Ruoyao
2022-02-24 19:35 ` Satish Vasudeva
2022-02-24 20:05 ` Xi Ruoyao
2022-02-24 20:13 ` Segher Boessenkool
2022-02-24 20:38 ` Satish Vasudeva
2022-02-25 8:35 ` Stefan Ring
2022-02-25 8:48 ` Xi Ruoyao
2022-02-25 14:01 ` Florian Weimer
2022-02-25 14:10 ` Alexander Monakov
2022-02-25 14:16 ` Xi Ruoyao
2022-02-25 14:25 ` Xi Ruoyao
2022-02-25 17:05 ` Satish Vasudeva
2022-02-25 17:16 ` Xi Ruoyao [this message]
2022-02-25 17:25 ` Satish Vasudeva
2022-03-02 0:16 ` Satish Vasudeva
2022-03-02 5:55 ` Florian Weimer
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