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Date: Wed, 02 Oct 2002 16:57:00 -0000
Subject: Re: RFAdvice - a couple of old lost Altivec patches
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Cc: Dale Johannesen <dalej@apple.com>, gcc@gcc.gnu.org
To: Zack Weinberg <zack@codesourcery.com>
From: Dale Johannesen <dalej@apple.com>
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On Wednesday, October 2, 2002, at 03:33 PM, Zack Weinberg wrote:

> I've been going through a customer's old 2.95+Altivec tree trying to
> bring them up to 3.2....
> The other is a bit hairier.  The existing easy_vector_constant()
> routine in rs6000.c only considers all-bits-zero easy.  The patch adds
> a whole bunch more bit patterns that are considered easy - I quote the
> code below for reference.  This is a clearly desirable feature; the
> difficulty is, the routine is written to the old layout of
> CONST_VECTOR.  I'm having trouble figuring out how to update it for
> the new one.  Anyone have suggestions?

I can do better than that, we have it working.  Unfortunately this patch
came originally from Motorola (according to my archive search here) and
is therefore off limits for FSF, last I heard.