Re: [RFC PATCH v1 1/1] PPC64: Implement POWER Architecture Vector Function ABI.

[David Edelsohn <dje.gcc@gmail.com>]

The Power Vector ABI is available at

https://github.com/power8-abi-doc/vector-function-abi

It apparently did not attach correctly to the sourceware wiki or the
filename is different.

Thanks, David

On Mon, Aug 17, 2020 at 1:44 PM GT <tnggil@protonmail.com> wrote:
>
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Thursday, August 13, 2020 6:49 PM, Segher Boessenkool <segher@kernel.crashing.org> wrote:
>
> > Hi!
> >
> > This is about the Power binding to some OpenMP API, right? It has
> > nothing to do with "vector" or "ABI" -- we have vectors already, and
> > we have ABIs already, more than enough of each.
> >
> > It is very very VERY hard to review this without being told the proper
> > setting here.
> >
>
> What this is about:
>
> David Edelsohn wanted to have new library functions, one for each of these 6 single-precision functions:
> sinf, cosf, sincosf, expf, logf, powf; and these 6 double-precision functions:
> sin, cos, sincos, exp, log, and pow.
>
> For the single-precision functions, the corresponding new functions would compute 4 results
> simulatneously. For the double-precision functions, the new ones would compute 2 results
> simultaneously.
>
> x86_64 has already done something very similar so I thought I would adapt as much of their
> documentation and implementation as I could for PPC64.
>
> Let's start with that. Comments so far?
>
> Bert.