Date: 23 Mar 2003 20:34:49 +0100 From: "Julian St." <der_julian@web.de> To: FreeBSD-current <current@freebsd.org> Subject: Re: libm problem Message-ID: <1048448088.91090.7.camel@jmmr.no-ip.com> In-Reply-To: <20030323175659.GA2558@fourtytwo.brucec.backnet> References: <20030318173051.GA2322@f111.hadiko.de> <20030323070808.0d3f63c0.fearow@attbi.com> <20030323170244.GA1911@f111.hadiko.de> <200303231843.16545.michaelnottebrock@gmx.net> <20030323175659.GA2558@fourtytwo.brucec.backnet>
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Am So, 2003-03-23 um 18.56 schrieb Bruce Cran: > On Sun, Mar 23, 2003 at 06:43:16PM +0100, Michael Nottebrock wrote: > > > > Just out of curiousity, have you tried using -mfpmath=sse? I remember someone > > on this list claiming that the SSE fpa-code works much better than the i387 > > code which is used by default (even with -march=pentium4). > > > > I don't know if SSE code runs faster, but it defitely seems to fix bad > code generation when optimizing for athlon-xp architecture. For > example, -O2 -march=athlon-xp produces broken code, whereas -O2 > -march=athlon-xp -mfpmath=sse produces programs which work. Just out of curiosity: Is -O -march=athlon-xp affected, too, by broken code generation? Because thats what I use all the time. :) -- Julian Stecklina <der_julian@web.de> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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