From owner-cvs-all Wed Nov 14 15:45: 2 2001 Delivered-To: cvs-all@freebsd.org Received: from monorchid.lemis.com (monorchid.lemis.com [192.109.197.75]) by hub.freebsd.org (Postfix) with ESMTP id 46DA837B416; Wed, 14 Nov 2001 15:44:55 -0800 (PST) Received: by monorchid.lemis.com (Postfix, from userid 1004) id 4ED297855F; Thu, 15 Nov 2001 10:14:53 +1030 (CST) Date: Thu, 15 Nov 2001 10:14:53 +1030 From: Greg Lehey To: Mark Peek Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/powerpc/powerpc machdep.c Message-ID: <20011115101453.C33267@monorchid.lemis.com> References: <200111130044.fAD0iL972345@freefall.freebsd.org> <20011115093118.G40270@monorchid.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.23i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wednesday, 14 November 2001 at 15:26:58 -0800, Mark Peek wrote: > At 9:31 AM +1030 11/15/01, Greg Lehey wrote: >> On Monday, 12 November 2001 at 16:44:21 -0800, Mark Peek wrote: >>> mp 2001/11/12 16:44:21 PST >>> >>> Modified files: >>> sys/powerpc/powerpc machdep.c >>> Log: >>> Don't enable FP in the kernel. It is not needed when -msoft-float is used. >> >> Why is FP needed at all? > > Without -msoft-float, gcc uses the FP registers for code optimization > like 8 byte structure copies. For instance, this contrived example: > > Ah, understood. Thanks. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message