From owner-freebsd-arch@FreeBSD.ORG Tue Oct 9 01:00:09 2007 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2F76316A417 for ; Tue, 9 Oct 2007 01:00:09 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [210.51.165.229]) by mx1.freebsd.org (Postfix) with ESMTP id E06F713C448 for ; Tue, 9 Oct 2007 01:00:08 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from localhost (tarsier.geekcn.org [210.51.165.229]) by tarsier.geekcn.org (Postfix) with ESMTP id DB993EBB713; Tue, 9 Oct 2007 08:43:25 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([210.51.165.229]) by localhost (mail.geekcn.org [210.51.165.229]) (amavisd-new, port 10024) with ESMTP id yOOsB73pIGlt; Tue, 9 Oct 2007 08:43:15 +0800 (CST) Received: from LI-Xins-MacBook.local (71.5.7.139.ptr.us.xo.net [71.5.7.139]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTP id B9D3AEBB709; Tue, 9 Oct 2007 08:43:14 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:subject:x-enigmail-version:openpgp:content-type; b=O8fZ9KPE0TcZ6WE5qYPAg+wfewihEJkiN3Rz6BUR4VZ1lgpiOWAV3a+GgVXmbWjsR 7u6EruplVc583xQxbf+Xg== Message-ID: <470ACEA1.3030309@delphij.net> Date: Mon, 08 Oct 2007 17:43:13 -0700 From: LI Xin Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.6 (Macintosh/20070728) MIME-Version: 1.0 To: freebsd-arch@freebsd.org X-Enigmail-Version: 0.95.3 OpenPGP: url=http://www.delphij.net/delphij.asc Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig8151AA50F19832207723B335" Subject: Why we optimize by time by default for < -O2 case? X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Oct 2007 01:00:09 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig8151AA50F19832207723B335 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi, I wonder why we want to optimize by time by default and not by space by default for the system compiler, does the reasoning still hold true? The commit log said: Modified files: contrib/gcc toplev.c Log: Clarify revision 1.14: Gcc 3.1's -O0 and -O1 actually optimized alignment for space, but we fe= el it should optimize alignment for time like Gcc 2.95 used to. Optimizat= ion for space should give 1-byte alignment on i386's, but doesn't quite. Revision Changes Path 1.15 +0 -0 src/contrib/gcc/toplev.c Cheers, --=20 Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! --------------enig8151AA50F19832207723B335 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHCs6hOfuToMruuMARClTXAJ94HdQgZ3q7KUKRlbNhzDoeW99cBgCfQ1rn ItCdcunWUXLhPdSq9abGeBo= =8lGL -----END PGP SIGNATURE----- --------------enig8151AA50F19832207723B335--