[PATCH, PowerPC] ABI fixes / improvements for powerpc64-linux

[Hal Finkel]

----- Original Message -----
> From: "Ulrich Weigand" <Ulrich.Weigand at de.ibm.com>
> To: "Hal Finkel" <hfinkel at anl.gov>
> Cc: "cfe commits" <cfe-commits at cs.uiuc.edu>
> Sent: Thursday, July 10, 2014 10:17:27 AM
> Subject: Re: [PATCH, PowerPC] ABI fixes / improvements for powerpc64-linux
> 
> Hal Finkel <hfinkel at anl.gov> wrote on 10.07.2014 01:08:47:
> 
> > The new ABI has not yet been published, and I doubt that changing
> > interactions with over-aligned types, vector types, etc. will break
> > much (if anything at all) in this already-built Linux distribution.
> > However, getting these things right affects the performance of
> > internal interfaces of performance-tuned codes (especially those
> > that use over-aligned structures, vector intrinsics, etc.) and
> > there
> > is no reason to do a bad job in that area now.
> >
> > In other news, there is a supported Linux distro that ships with
> > TOT gcc?
> 
> Yes, Ubuntu 14.04 LTS is a supported distro on the ELFv2 ABI (it's
> gcc 4.8,
> but with the ELFv2 ABI patches backported), and there's a build of
> Debian
> supported via the OpenPower group.  A couple of other supported
> distros are
> about to be released.

Interesting, thanks!

 -Hal

> 
> Bye,
> Ulrich
> 
> 

-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory