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Date:      Wed, 07 Nov 2007 15:48:34 +0100
From:      Rafal Jaworowski <raj@semihalf.com>
To:        Olivier Houchard <mlfbsd@ci0.org>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: SoftFloat future
Message-ID:  <4731D042.5060700@semihalf.com>
In-Reply-To: <20071106234308.GA13563@ci0.org>
References:  <4730AECC.5010701@semihalf.com> <20071106234308.GA13563@ci0.org>

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Olivier Houchard wrote:
>> So what's ARM people view on using SoftFloat vs. gcc soft-float? What are FreeBSD/ARM plans in this regard.
>>
> 
> The libsoftfloat got imported for arm because at the time it happened, gcc
> (3.4.6 or something like this) didn't provide softfloat for arm.
> Also, last time I tried it, the libgcc softfloat bits behaved strangely,
> and gave dd segfaults or funny pings. 
> So I gess FreeBSD/arm plans are to get right of the libsoftfloat when the
> libgcc bits will work as expected :-)
> 

Hi Olivier,

Did you use any float testing suites to verify it? Even though I didn't
observe such problems with libgcc soft-floats on PowerPC I'd like to stress it
in some more systematic way, but the testing packages I looked at were not
readily available for this arch, low level pieces were missing there etc. For
the SoftFloat lib there's accompanying TestFloat but it's closely tied to its
parent library, so no easy way to use it with libgcc soft-float. Any hints on
what would be best to pick up?

Rafal



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