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Date:      Tue, 18 Mar 2003 08:48:18 -0500 (EST)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        David Schultz <das@FreeBSD.ORG>
Cc:        current@FreeBSD.ORG, alpha@FreeBSD.ORG
Subject:   Re: HEADS UP: Don't upgrade your Alphas!
Message-ID:  <15991.9122.826678.673067@grasshopper.cs.duke.edu>
In-Reply-To: <20030318080132.GB10867@HAL9000.homeunix.com>
References:  <20030317161219.GA1429@sunbay.com> <200303150947.h2F9l5eQ028059@repoman.freebsd.org> <20030317164037.GB98100@sunbay.com> <20030318073019.GA10737@HAL9000.homeunix.com> <3E76CE0F.8FAA6AE3@mindspring.com> <20030318080132.GB10867@HAL9000.homeunix.com>

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David Schultz writes:
 > Thus spake Terry Lambert <tlambert2@mindspring.com>:
 > > David Schultz wrote:
 > > > This is because floating point
 > > > support on Alpha is broken unless you specifically tell gcc to
 > > > unbreak it by specifying -mieee.
 > > 
 > > Sounds like the ability to turn "-mieee" off at all, let alone
 > > making it the default, is bad?  If so, why is that the way it
 > > is configured?
 > > 
 > > > I'm hoping there's a better solution than
 > > > disabling support for NaNs in strtod().
 > > 
 > > Make "-mieee" on by default?
 > 
 > Well, I was secretly hoping I'd get that answer from the Powers
 > That Be, but I think it's off by default on purpose for efficiency
 > reasons.  That would imply that I need to come up with a workaround
 > that involves not generating NaN values, *period*.  Sigh.

FWIW, I think -mieee should be on by default.  If anybody cared about
speed, they'd use the compaq compiler or a P4.

Drew

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