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Date:      Wed, 12 Sep 2012 16:42:27 -0500
From:      Nathan Whitehorn <nwhitehorn@freebsd.org>
To:        Dimitry Andric <dim@FreeBSD.org>
Cc:        toolchain@FreeBSD.org, Tijl Coosemans <tijl@coosemans.org>, current@FreeBSD.org, Steve Kargl <sgk@troutmask.apl.washington.edu>
Subject:   Re: Clang as default compiler November 4th
Message-ID:  <505101C3.70203@freebsd.org>
In-Reply-To: <504F5101.8090906@FreeBSD.org>
References:  <20120910211207.GC64920@lor.one-eyed-alien.net> <20120911104518.GF37286@deviant.kiev.zoral.com.ua> <20120911120649.GA52235@freebsd.org> <20120911132410.GA87126@troutmask.apl.washington.edu> <504F4645.4070900@FreeBSD.org> <504F4A6B.4010001@coosemans.org> <504F5101.8090906@FreeBSD.org>

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On 09/11/12 09:56, Dimitry Andric wrote:
> On 2012-09-11 16:27, Tijl Coosemans wrote:> On 11-09-2012 16:10, 
> Dimitry Andric wrote:
> ...
>>> Yes, maths support, specifically precision, is admittedly still one of
>>> clang's (really llvm's) weaker points.  It is currently not really a
>>> high priority item for upstream.
>>>
>>> This is obviously something that a certain part of our userbase will
>>> care a lot about, while most of the time they won't care so much about
>>> licensing or politics.  So those people are probably better off using
>>> gcc for the time being.
>>
>> Does it affect the accuracy of libm functions?
>
> It seems to, at least in specific cases; Steve posted about this in an
> earlier thread on -current:
>
>   http://docs.freebsd.org/cgi/mid.cgi?20120905221310.GA97847
> _______________________________________________

If true, this is a serious problem, especially for those of us who use 
FreeBSD in a scientific computing environment.
-Nathan



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