Re: Popcount optimization using AVX512

[Raghuveer Devulapalli]

BTW, I just realized function attributes for xsave and avx512 don't work on 
MSVC (see 
https://developercommunity.visualstudio.com/t/support-function-target-attribute-and-mutiversioning/10130630).
 Not sure if you care about it. Its an easy fix (see 
https://gcc.godbolt.org/z/Pebdj3vMx).