Re: [RFC] [PowerPC] Patch to create new attribute type: popcnt

[Edmar <edmar at freescale dot com>]

On 06/06/2012 08:57 AM, David Edelsohn wrote:
> On Tue, Jun 5, 2012 at 4:21 PM, Edmar<edmar@freescale.com>  wrote:
> > David, Michael,
> >
> > Here is the new type "popcnt" patch that I had separated from previous
> > E5500/E6500 submission, also added the changes suggested by Michael
> > Meissner (detailed bellow).
> > I am missing some details for power6. (Could not find any documentation)
> >
> > Bootstrapped with no regressions, all languages enabled, configured
> > for target powerpc64 and used "--with-cpu=<>" for each of power6, power7,
> > and 970.
> > All work performed on svn revison number 188200.
> No.
>
> As Mike and I both explained, this is a standard part of an ISA level.
> We are not going to start supporting finer granularity. If the
> Freescale processors do not support the popcnt instruction then they
> do not support that level of the ISA.
>
> - David
>
> .
I agree, I understood this from the first time.
This patch is for IBM parts exclusively.

I am posting it as Michael manifested interest to have popcnt
scheduling control for those IBM parts, and this happened while he was
reviewing my E5500/E6500 patch.

I understand if this patch still not right. I just don't want
to leave a wrong impression.

Thanks,
Edmar