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From: Jakub Jelinek <jakub@redhat.com>
To: Steve Munroe <sjmunroe@us.ibm.com>
Cc: Ulrich Drepper <drepper@redhat.com>,
	Glibc hackers <libc-hacker@sources.redhat.com>,
	libc-hacker-owner@sources.redhat.com,
	Richard Henderson <rth@redhat.com>
Subject: Re: [PATCH] long double IEEE double -> quad switch
Date: Wed, 07 Apr 2004 17:32:00 -0000	[thread overview]
Message-ID: <20040407152142.GS514@sunsite.ms.mff.cuni.cz> (raw)
In-Reply-To: <OF4B674C7A.8B99751C-ON86256E6F.005B9D83-86256E6F.005DFC7C@us.ibm.com>

On Wed, Apr 07, 2004 at 12:06:32PM -0500, Steve Munroe wrote:
> Have you made any more progress on this? We are all waiting for this to be 
> resolved.

Not yet, will do after Easter.

> You mention ldbl-128ibm/ and ldbl-64-128ibm/ what do you see as the 
> difference?

Similarly to ldbl-128 and ldbl-64-128.  The former is a directory with
support for IEEE quad long double (ldbl-128ibm would be for IBM 2xdouble
long double format), the latter contains wrappers around dbl-64 and
ldbl-128* functions so that both sizeof (double) == sizeof (long double)
and sizeof (double) < sizeof (long double) is supported.

> I also see an opportunity to improve the double implementations for 
> 64-bit. Should we add dbl-64-64(sp?) where the code assumes 64-bit 
> registers for the (long) integer bit manipulation. This should be 
> generally useful beyond powerpc64.

That should be dbl-64/wordsize-64 subdir instead IMHO.

	Jakub

      reply	other threads:[~2004-04-07 17:32 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-24 22:00 Jakub Jelinek
2004-03-27  8:18 ` Ulrich Drepper
2004-04-07 17:06 ` Steve Munroe
2004-04-07 17:32   ` Jakub Jelinek [this message]

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