> OK. Presumably once this is applied Richi is going to look at the
> higher level issues in the vectorizer which inhibit creating the HI/QI
> vector popcounts?
>
Yes, this is the prerequisite to look at the vectorization issue. I'll
ask Hongtao to
help check-in this patch. Thanks for the approv
On 11/11/20 6:54 PM, Hongyu Wang via Gcc-patches wrote:
> Hi,
>
> According to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770, x86
> backend need popcount2 expander so __builtin_popcount could be
> auto vectorized with AVX512BITALG/AVX512VPOPCNTDQ targets.
>
> For DImode the middle-end vecto
Hi,
According to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770, x86
backend need popcount2 expander so __builtin_popcount could be
auto vectorized with AVX512BITALG/AVX512VPOPCNTDQ targets.
For DImode the middle-end vectorizer could not generate expected code,
and for QI/HImode there is no c
