[PATCH, rs6000] Add support for vector element-reversal built-ins
Bill Schmidt
wschmidt@linux.vnet.ibm.com
Sun Apr 24 22:33:00 GMT 2016
On Sun, 2016-04-24 at 15:52 -0500, Segher Boessenkool wrote:
> On Sun, Apr 24, 2016 at 02:06:47PM -0500, Bill Schmidt wrote:
> > ISA 3.0 adds the lvxh8x, lvxb16x, stvxh8x, and stvxb16x instructions,
>
> lxvh8x etc. It looks like you only swapped things in this message,
> not in the actual patch :-)
D'oh! Yes, I make that typo all the time...
>
> > (While working on this patch, I happened to notice that the existing
> > entries in rs6000-builtin.def for STXVD2X_<MODE> and STXVW4X_<MODE> are
> > mapped to stxsdx instead of stxvd2x/stxvw4x. I took the opportunity to
> > correct that as an obvious bug.)
>
> Does that part need backporting?
Yes, we should do that.
>
> Should the new builtins be documented?
Bah, I knew I had forgotten something. Yes, they should. I'll put
together a follow-on patch to update the documentation.
Thanks!
Bill
>
> Looks fine otherwise.
>
>
> Segher
>
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