[Bug target/124271] x86/AVX2: missed simplification — low32×low32→u64 vectorized multiply expands to generic u64-mul sequence instead of single vpmuludq

[liuhongt at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124271

--- Comment #12 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
(In reply to Oleksandr Kulkov from comment #11)
> Hongtao, is there an updated version of the widening-multiply patch from
> comment 7? The last feedback in comment 10 concerned using
> `vec_widen_mult_odd` on big-endian targets. Is anything else needed to move
> it forward?

Thanks for the reminder! I forgot about this PR — I'll get it posted with
vec_widen_mult_odd` on big-endian.