Date: Thu, 15 Nov 2001 10:14:53 +1030 From: Greg Lehey <grog@FreeBSD.org> To: Mark Peek <mark@peek.org> 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> In-Reply-To: <p05101008b818a9b71348@[207.76.207.129]> References: <200111130044.fAD0iL972345@freefall.freebsd.org> <20011115093118.G40270@monorchid.lemis.com> <p05101008b818a9b71348@[207.76.207.129]>
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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: > > <snip> 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
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