From owner-freebsd-stable Thu Mar 23 16: 8:18 2000 Delivered-To: freebsd-stable@freebsd.org Received: from peach.ocn.ne.jp (peach.ocn.ne.jp [210.145.254.87]) by hub.freebsd.org (Postfix) with ESMTP id 6CE2B37C575; Thu, 23 Mar 2000 16:08:13 -0800 (PST) (envelope-from dcs@newsguy.com) Received: from newsguy.com (p39-dn02kiryunisiki.gunma.ocn.ne.jp [211.0.245.104]) by peach.ocn.ne.jp (8.9.1a/OCN) with ESMTP id JAA18231; Fri, 24 Mar 2000 09:08:00 +0900 (JST) Message-ID: <38DAACEF.1F55DF96@newsguy.com> Date: Fri, 24 Mar 2000 08:46:55 +0900 From: "Daniel C. Sobral" X-Mailer: Mozilla 4.7 [en] (Win98; I) X-Accept-Language: en,pt-BR,ja MIME-Version: 1.0 To: Charles Cox Cc: Cy Schubert - ITSD Open Systems Group , Andrew Gallatin , obrien@FreeBSD.ORG, Howard Leadmon , freebsd-alpha@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG Subject: Re: Compiler problems with -O2 (was Re: CVS Trouble, even under4.0-RELEASE (alpha) HELP!) References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Charles Cox wrote: > > I would like to add that some of us who do a lot of numerically intensive > programming, and that need to squeeze every last available cycle out of > our CPU's would really appreciate having -O2 available for userland > programs. To me, getting rid of the -O2+ switch would be like outlawing > cars because someone had a really bad car accident. Just like driving a > car, using gcc and the -O2 switch safely are the USER's > responsibility. Having said this though, I do fully support having > comments in make.conf, and documentation elsewhere that cautions against > compiling a kernel with -O2. Whatever. Remember, though, that compiling with -O2 *WILL* result in bad code. It's not that someone had an accident. Is that the breaks don't work one time out of five. Just wait your turn... -- Daniel C. Sobral (8-DCS) dcs@newsguy.com dcs@freebsd.org capo@zurichgnomes.bsdconspiracy.net One Unix to rule them all, One Resolver to find them, One IP to bring them all and in the zone bind them. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message