From owner-freebsd-stable Tue May 8 3:19:43 2001 Delivered-To: freebsd-stable@freebsd.org Received: from fw.wintelcom.net (ns1.wintelcom.net [209.1.153.20]) by hub.freebsd.org (Postfix) with ESMTP id 3C1C737B422 for ; Tue, 8 May 2001 03:19:41 -0700 (PDT) (envelope-from bright@fw.wintelcom.net) Received: (from bright@localhost) by fw.wintelcom.net (8.10.0/8.10.0) id f48AH9S04764; Tue, 8 May 2001 03:17:09 -0700 (PDT) Date: Tue, 8 May 2001 03:17:09 -0700 From: Alfred Perlstein To: Pete French Cc: ertr1013@student.uu.se, freebsd-stable@FreeBSD.ORG Subject: Re: CFLAGS Optimization Message-ID: <20010508031708.I18676@fw.wintelcom.net> References: <20010508005303.A7567@student.uu.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from pfrench@firstcallgroup.co.uk on Tue, May 08, 2001 at 10:43:26AM +0100 X-all-your-base: are belong to us. Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG * Pete French [010508 03:10] wrote: > > You do know that gcc doesn't have any optimization-level above -O3 ? > > It is therefore fairly pointless to specify stuff like -O4 or -O9 > > I suspect people dont know the difference between gcc and pgcc (which ends up > being called 'gcc' on Linux I believe). pgcc does have optimisations up > to O6 - > > http://www.goof.com/pcg/pgcc-faq.html#opts I see at least one row where using -O3 turns on an option flagged as: "U" - Unstable. Not as problematic as D, but still there are some known problems with it. yikes. -- -Alfred Perlstein - [alfred@freebsd.org] Daemon News Magazine in your snail-mail! http://magazine.daemonnews.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message