[FFmpeg-devel] [PATCH v4] libswscale/ppc: VSX-optimize 9-16 bit yuv2planeX

Michael Niedermayer michael at niedermayer.cc
Sat Jan 12 02:03:09 EET 2019

On Fri, Jan 11, 2019 at 11:16:20AM +0200, Lauri Kasanen wrote:
> On Fri, 11 Jan 2019 09:56:15 +0100
> Michael Niedermayer <michael at niedermayer.cc> wrote:
> > > +#ifdef __GNUC__
> > > +            // GCC does not support vmuluwm yet. Bug open.
> > 
> > this should probably be tested by configure similar to how other
> > compiler limitations are tested
> We can't really test for it, because there is no standard name for it. I
> don't know what name the gcc devs will pick for it, it could be vec_mul,
> vec_vmuluwm or something different.

the code contains a #if and a #else case
so i thought there was something else than the __GNUC__ case and gcc
would follow that


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Concerning the gods, I have no means of knowing whether they exist or not
or of what sort they may be, because of the obscurity of the subject, and
the brevity of human life -- Protagoras
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