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Date: Mon, 04 Jun 2012 12:00:27 +0200
From: Tijl Coosemans <tijl@freebsd.org>
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To: Konstantin Belousov <kib@freebsd.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org
Subject: Re: svn commit: r236456 - in head/sys: amd64/include i386/include
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On 02-06-2012 20:10, Konstantin Belousov wrote:
> Author: kib
> Date: Sat Jun  2 18:10:16 2012
> New Revision: 236456
> URL: http://svn.freebsd.org/changeset/base/236456
> 
> Log:
>   Use plain store for atomic_store_rel on x86, instead of implicitly
>   locked xchg instruction.  IA32 memory model guarantees that store has
>   release semantic, since stores cannot pass loads or stores.

They can pass non-temporal stores can't they?