From: Marc Glisse <marc.glisse@inria.fr>
To: gcc-patches@gcc.gnu.org
Cc: ubizjak@gmail.com
Subject: Re: [x86, 2/n] Replace builtins with vector extensions
Date: Tue, 04 Nov 2014 20:32:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.11.1411042127420.1582@laptop-mg.saclay.inria.fr> (raw)
In-Reply-To: <alpine.DEB.2.02.1410181330470.30803@stedding.saclay.inria.fr>
Ping?
https://gcc.gnu.org/ml/gcc-patches/2014-10/msg01808.html
On Sat, 18 Oct 2014, Marc Glisse wrote:
> Hello,
>
> this time, +-* for 128 bit integer vectors. I am using an unsigned type so
> the compiler knows that we expect wrapping. I don't know why Intel's
> description of mullo insists that the multiplication is signed, that only
> matters for the high part...
>
> Next parts (waiting for approval for this one) should be:
> - same thing with 256 and 512 bit integer vectors
> - & | ^ (integer only)
>
> Maybe (or it can wait until the next release):
> - < > == abs min max (integer only)
>
>
> 2014-10-20 Marc Glisse <marc.glisse@inria.fr>
>
> * config/i386/emmintrin.h (__v2du, __v4su, __v8hu, __v16qu): New
> typedefs.
> (_mm_add_epi8, _mm_add_epi16, _mm_add_epi32, _mm_add_epi64,
> _mm_sub_epi8, _mm_sub_epi16, _mm_sub_epi32, _mm_sub_epi64,
> _mm_mullo_epi16): Use vector extensions instead of builtins.
> * config/i386/smmintrin.h (_mm_mullo_epi32): Likewise.
>
>
--
Marc Glisse
next prev parent reply other threads:[~2014-11-04 20:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-18 12:09 Marc Glisse
2014-11-04 20:32 ` Marc Glisse [this message]
2014-11-05 8:02 ` Uros Bizjak
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