From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f182.google.com (mail-pf0-f182.google.com [209.85.192.182]) by mail.openembedded.org (Postfix) with ESMTP id 306EF6FF6B for ; Tue, 12 Jan 2016 16:26:48 +0000 (UTC) Received: by mail-pf0-f182.google.com with SMTP id 65so65187943pff.2 for ; Tue, 12 Jan 2016 08:26:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=ViFehJgLXPB2112qTVMIV7forTDQELP306kLFVucCQ0=; b=i69slpbCuLAip5qFOyJIlsJ9z9cMsMUFGpW7ZqGCmTYZisHAbwBtwnBy4py7K3/lrt o2KK9mcB96CLsYv6MW1uOyaBUAMvOvqvyaLUdCYghh27SGH1fJK2/nyi/g0SLzZ5eC4S mPmL540Ha31CD/ZWNIYzxaVfrA3Jb47WIGshrOaH1SBuFc0CnuFhJHR2q5bC7aywKgOl fJMiRv4C5FaHHeK+9PBdtusoMpKmoR+V7EQTMLSQDUB2p6icj4MG/oopHDNmZyNokwit agxvSeK3hBbGKkieQpciu5g1+SQYOP8CFCHLQuuNoziFOZIOnmhvc2WzC5U1IHGaFOMM S4CA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=ViFehJgLXPB2112qTVMIV7forTDQELP306kLFVucCQ0=; b=M4T7MPaWkc48YYbj9HX+zw+1Iew1WRN4hg51ugIsvc+BE/yv81H5pTGmg4PwftL/6R lbj3LVJS0n7g/Ws2Ngy4uO10Ept9eKChcrSIwuIMNxX66XlV7whjxS2PBqIWAzx421ld 3Hv7Vbc9rsDTcL4yHXl2A/R8eLWjNzXhNav/KoWwc8LhWnKmCLiA1EgDO7dpwjsumo6B TXdCxDC+G9qzvxrXLbilae8aOl3HFQIHEurKFWfSvLxVRwTKMKLu8zcfgcfZOXmqrFin riuNcvjsmTfTY81/AN2i6O6MCnSmT1mCObNQBZ3qk/sCk6WIxr1z6LHm8u/LXU6MVY/U v/XA== X-Gm-Message-State: ALoCoQlwZAtvklASBfZIBkK1KYHyZDnXNBHGvmw/a67CHAt/ogmDGlNHRjrtrcI/A0xcm1TA6Lhq1JEbmCfTmPbJnYwlPUhACg== X-Received: by 10.98.7.79 with SMTP id b76mr36087595pfd.40.1452616009498; Tue, 12 Jan 2016 08:26:49 -0800 (PST) Received: from ?IPv6:2601:646:8802:5d5c:98ae:25c1:975a:428c? ([2601:646:8802:5d5c:98ae:25c1:975a:428c]) by smtp.gmail.com with ESMTPSA id z15sm31529229pfa.71.2016.01.12.08.26.48 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 12 Jan 2016 08:26:48 -0800 (PST) Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) X-Pgp-Agent: GPGMail 2.6b2 From: Khem Raj In-Reply-To: <1452591757.1950.33.camel@pbcl.net> Date: Tue, 12 Jan 2016 08:26:43 -0800 Message-Id: <30C7BCF7-5137-4EC3-A978-D74AA04AE6AB@gmail.com> References: <1452205752-6353-1-git-send-email-armccurdy@gmail.com> <1452205752-6353-4-git-send-email-armccurdy@gmail.com> <1452210004.2002.129.camel@pbcl.net> <4E2CA517-1339-416B-832B-AB2EFF04CEE6@gmail.com> <1452591757.1950.33.camel@pbcl.net> To: Phil Blundell X-Mailer: Apple Mail (2.3112) Cc: openembedded-core@lists.openembedded.org Subject: Re: [PATCH v2 3/4] libav.inc: duplicate armv7a over-rides for armv7ve X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2016 16:26:49 -0000 X-Groupsio-MsgNum: 75942 Content-Type: multipart/signed; boundary="Apple-Mail=_856BBB96-6D30-4182-8462-6D87900C082B"; protocol="application/pgp-signature"; micalg=pgp-sha1 --Apple-Mail=_856BBB96-6D30-4182-8462-6D87900C082B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Jan 12, 2016, at 1:42 AM, Phil Blundell wrote: >=20 > On Mon, 2016-01-11 at 14:58 -0800, Khem Raj wrote: >> it came into ffmpeg circa 2008 and proliferated into related = components primarily to support vectorization and neon >> which was quite nascent for ARM architecture in those days in gcc. = Today if you were to configure libav with default options >> then it uses mainly -fomit-frame-pointer-O3 -fno-math-errno = -fno-signed-zeros -fno-tree-vectorize >>=20 >> which is primarily -Ofast -fno-tree-vectorize >=20 > I think -fno-tree-vectorize is just there as a workaround for old > compilers. It sounds like you're saying that ffmpeg basically just > wants "-Ofast", and by implication it wants this on all architectures. > So in that case there is no need for a FULL_OPTIMIZATION override on > arm, let alone armv7a specifically. yes I think it should use -Ofast irrespective of architecture. >=20 > Whether ffmpeg ought to be forcing its own FULL_OPTIMIZATION at all > versus leaving it up to the distro is another question. Personally I > think that individual recipes have no business setting those = variables, > and ffmpeg is no exception, but I don't have a particularly strong > opinion either way. >=20 > p. >=20 >=20 --Apple-Mail=_856BBB96-6D30-4182-8462-6D87900C082B Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iEYEARECAAYFAlaVKUcACgkQuwUzVZGdMxRbrQCaA5ZoizrxaOZIxrDnu6YtVeHW 4L8An3YDUQHUZ4BivKoxmnIZS3JFtcKm =0SPn -----END PGP SIGNATURE----- --Apple-Mail=_856BBB96-6D30-4182-8462-6D87900C082B--