On Thu, Apr 26, 2018 at 10:09:48PM +0200, Jakub Jelinek wrote:
> ICC apparently has these two intrinsics (why it doesn't have a maskz_ one
> is unclear to me) which are like _mm512_{,mask_}mullo_epi64, except they are
> available in AVX512F rather than just AVX512DQ and if AVX512DQ is not
> enabled they expand to 3 vpmuludq instructions + 3 shifts + 2 adds; for
> AVX512DQ they are the same as mullo without x.
>
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
>
> 2018-04-26 Jakub Jelinek <ja...@redhat.com>
>
> PR target/85530
> * config/i386/avx512fintrin.h (_mm512_mullox_epi64,
> _mm512_mask_mullox_epi64): New intrinsics.
>
> * gcc.target/i386/avx512f-vpmullq-1.c: New test.
> * gcc.target/i386/avx512f-vpmullq-2.c: New test.
> * gcc.target/i386/avx512dq-vpmullq-3.c: New test.
> * gcc.target/i386/avx512dq-vpmullq-4.c: New test.
I'd like to ping this patch, ok for trunk?
Jakub
