Re: preliminary patch: prefetch support for i386

[Janis Johnson <janis187 at us dot ibm dot com>]

On Fri, Nov 30, 2001 at 05:35:21PM -0800, Richard Henderson wrote:
> On Fri, Nov 30, 2001 at 04:42:28PM -0800, Janis Johnson wrote:
> > Is that patch likely to be stable enough to go into 3.1, with specific
> > performance tweaks added later?  The bulk of the code is only used with
> > a new optimization option, so it shouldn't hurt anything that doesn't
> > use that option.
> 
> Assuming you get this done by 2001-12-15, the builtin can go into 3.1.
> 
> r~

Here I was talking about an updated version of Jan's patch to prefetch
arrays in loops.

For the basic framework and the builtin, I've updated my changes and
added more tests and plan to submit it again in a day or two.  Work on
the i386 support and testing Jan's patch can happen in parallel in the
next couple of weeks; I've already been building and testing with his
patch occasionally, although not actually using the new optimization.
Is getting it in 3.1 possible if it's stable by 2001-12-15?

Janis