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Date:      Fri, 31 Aug 2007 18:37:33 -0700
From:      Steve Kargl <sgk@troutmask.apl.washington.edu>
To:        JoaoBR <joao@matik.com.br>
Cc:        Roman Divacky <rdivacky@freebsd.org>, freebsd-current@freebsd.org, pluknet <pluknet@gmail.com>, Bj?rn K?nig <bkoenig@cs.tu-berlin.de>
Subject:   Re: Adding k9 and k10 to bsd.cpu.mk
Message-ID:  <20070901013733.GA12544@troutmask.apl.washington.edu>
In-Reply-To: <200708312226.26977.joao@matik.com.br>
References:  <-3502020561049594852@unknownmsgid> <20070901000710.GA12223@dragon.NUXI.org> <200708312120.31912.joao@matik.com.br> <200708312226.26977.joao@matik.com.br>

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On Fri, Aug 31, 2007 at 10:26:25PM -0300, JoaoBR wrote:
> On Friday 31 August 2007 21:20:30 JoaoBR wrote:
> > > > opterons are not easy but it is already kind of advanced cpu so could
> > > > be
> > >
> > > Why are Opteron's any harder?
> >
> > because all of them are 64bit but some older ones are not SSE3 capable, <
> > 250 I guess now but 252 is but not 100% sure
> 
> 
> so just a thought, I have no not-sse3 capable anymore so I could check  but 
> asking the gcc guys here ...
> 
> what if I try to compile with -msse3 and it is not available, does it go 
> through or do I get invalid compile option and if it go through what may it 
> cost?

Yes, it will compile the code.  The result will most likely not run
if some code was translated to use a sse3 feature.

-- 
Steve



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