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Date:      Thu, 24 Oct 2019 07:35:01 -0400
From:      Ed Maste <emaste@freebsd.org>
To:        Alexey Dokuchaev <danfe@freebsd.org>
Cc:        Dimitry Andric <dim@freebsd.org>, src-committers <src-committers@freebsd.org>,  svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r353936 - head/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch
Message-ID:  <CAPyFy2A7XCa=tXPgypPnUpsT7%2Bfg=UOdKvKRy7RUOgWyk2LDLw@mail.gmail.com>
In-Reply-To: <20191024082609.GA63459@FreeBSD.org>
References:  <201910231657.x9NGvCMD039111@repo.freebsd.org> <20191024082609.GA63459@FreeBSD.org>

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On Thu, 24 Oct 2019 at 04:26, Alexey Dokuchaev <danfe@freebsd.org> wrote:
>
> Why i686, not i586?  i486 lacking 64-bit atomics is a sound and valid
> reason, but I don't understand why i586 wasn't chosen, and quick review
> of that -arch thread did not help.  Could you shed some more light here?

i686 as a minimum allows a switch to PAE page tables. In my opinion we
should still allow building FreeBSD for i586 (and I would like to have
such a case in our hardware CI lab), but the default for the
installation images and prebuilt packages should be i686.



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