From: "Paul A. Clarke" <pc@us.ibm.com>
To: David Edelsohn <dje.gcc@gmail.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>,
GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] rs6000: Add Power10 optimization for most _mm_movemask*
Date: Fri, 7 Jan 2022 14:35:12 -0600 [thread overview]
Message-ID: <YdikAC0zzEuLQb8J@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com> (raw)
In-Reply-To: <CAGWvnyk4_2SCBTvP7Tm-Kwfcu8czTannefxa+EFeoJB4=bBnMA@mail.gmail.com>
On Fri, Jan 07, 2022 at 02:23:14PM -0500, David Edelsohn wrote:
> > Power10 ISA added `vextract*` instructions which are realized in the
> > `vec_extractm` instrinsic.
> >
> > Use `vec_extractm` for `_mm_movemask_ps`, `_mm_movemask_pd`, and
> > `_mm_movemask_epi8` compatibility intrinsics, when `_ARCH_PWR10`.
> >
> > 2021-10-21 Paul A. Clarke <pc@us.ibm.com>
> >
> > gcc
> > * config/rs6000/xmmintrin.h (_mm_movemask_ps): Use vec_extractm
> > when _ARCH_PWR10.
> > * config/rs6000/emmintrin.h (_mm_movemask_pd): Likewise.
> > (_mm_movemask_epi8): Likewise.
> > ---
> > Tested on Power10 powerpc64le-linux (compiled with and without
> > `-mcpu=power10`).
> >
> > OK for trunk?
>
> This is okay modulo
>
> > + return vec_extractm ((__v16qu) __A);
>
> Should the above be __v16qi like x86?
That would match x86 better, but we don't have a function signature
for vec_extractm which accepts a signed type.
PC
next prev parent reply other threads:[~2022-01-07 20:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-07 19:23 David Edelsohn
2022-01-07 20:35 ` Paul A. Clarke [this message]
2022-01-07 20:51 ` David Edelsohn
-- strict thread matches above, loose matches on Subject: below --
2021-10-21 17:22 Paul A. Clarke
2021-11-19 18:15 ` Segher Boessenkool
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