5 ms·
POPCNT doesn't exist in AVX prior to Icelake, so using other techniques there is sensible. Also, that's POPCNT, not LZCNT.
by RaisingSpear 3y ago
POPCNT doesn't exist in AVX prior to Icelake, so using other techniques there is sensible. Also, that's POPCNT, not LZCNT.