[llvm-dev] [RFC] [PowerPC] Removing PowerPC QPX Support

Justin Hibbits via llvm-dev
Thu, 30 Apr 2020 19:14:07 -0000

On Thu, 30 Apr 2020 12:03:08 -0700
Fangrui Song <maskray at google.com> wrote:

> On 2020-04-29, Finkel, Hal J. via llvm-dev wrote:
> >Hi, everyone,
> >
> >I would like to know if anyone is still making use of the support in
> >the PowerPC backend for the IBM BG/Q supercomputer, including the
> >support for its QPX vector instruction set. If you are, please
> >reply. I'm not aware of any still-running BG/Q machines, and if no
> >one is making use of this functionality, I propose that we remove it.
> >
> >Thanks again,
> >Hal
> >
> >Hal Finkel
> >Lead, Compiler Technology and Programming Languages
> >Leadership Computing Facility
> >Argonne National Laboratory
>
> CC Justin Hibbits who may be using QPX.
>
> (I don't know anything about QPX.)

Unfortunately, I don't own a BG/Q, or any BG.  Doubt I could afford the
power bill for one.

- Justin