4 ms·
Hey, you can have 7-bit lookup tables at the byte level on AVX512VBMI (using the 2-register shuffle forms) and you can already have 6-bit lookups with 2-registe
by glangdale 8y ago
Hey, you can have 7-bit lookup tables at the byte level on AVX512VBMI (using the 2-register shuffle forms) and you can already have 6-bit lookups with 2-register 16-bit shuffles if you can play around on Skylake Server.
Mass availability of the VBMI goodies looks to be bottlenecked behind Icelake/Sunny Cove, so you'll have plenty of time to think through the implications of fast 6-bit lookup. :-)