From owner-freebsd-current Mon Feb 10 18:54: 9 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E25E637B401 for ; Mon, 10 Feb 2003 18:54:07 -0800 (PST) Received: from ephemeral.chemikals.org (cae57-161-024.sc.rr.com [66.57.161.24]) by mx1.FreeBSD.org (Postfix) with ESMTP id D978643F3F for ; Mon, 10 Feb 2003 18:54:06 -0800 (PST) (envelope-from morganw@chemikals.org) Received: from volatile.chemikals.org (root@adsl-18-161-71.gsp.bellsouth.net [68.18.161.71]) by ephemeral.chemikals.org (8.12.6/8.12.6) with ESMTP id h1B2s3Qt051810; Mon, 10 Feb 2003 21:54:04 -0500 (EST) (envelope-from morganw@chemikals.org) Received: from localhost (morganw@localhost [127.0.0.1]) by volatile.chemikals.org (8.12.6/8.12.6) with ESMTP id h1B2s0RD087430; Mon, 10 Feb 2003 21:54:02 -0500 (EST) (envelope-from morganw@chemikals.org) Date: Mon, 10 Feb 2003 21:54:00 -0500 (EST) From: Wesley Morgan To: Craig Rodrigues Cc: freebsd-current@FreeBSD.ORG Subject: Re: GCC 3.2.2 import -- questions In-Reply-To: <20030211024337.GA37587@attbi.com> Message-ID: <20030210214858.G86987@volatile.chemikals.org> References: <20030210204245.E86987@volatile.chemikals.org> <20030211020303.GA37644@attbi.com> <20030210200619.A23718@FreeBSD.org> <20030211024337.GA37587@attbi.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, 10 Feb 2003, Craig Rodrigues wrote: > Many people are upgrading from 4.7.x to -current for the first > time these days, so I thought I would mention that for reference. > > GCC 3.2.2 was an incremental bugfix over GCC 3.2.1, and there are no > earth-shattering performance improvements. I have not done > such benchmarking myself, so have no empirical evidence to support this, > but I am basing this on the traffic I have been watching on the > GCC mailing list, and by reading the release notes > at http://gcc.gnu.org/gcc-3.2/changes.html . Well what I am really interested in is whether or not higher levels of optimization are more reliable now than before. Previously we have been warned against using many of the CPU specific optimizations, especially for the pentium 4, and the release notes offer little to support any conclusions... So without digging through mountains of GCC mailing list archives... Are these optimizations SAFER now? -- Hi! I'm a .signature virus! Copy me into your ~/.signature to help me spread! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message