search for: bitshuffl

...uffle bits within a 64-bit word, either gathering all selected bits to the beginning (pext) or scattering some initial bits throughout (pdep). A natural model for this is to use shufflevector on v32i1 and v64i1 vectors. We've got some preliminary notes here: http://parabix.costar.sfu.ca/wiki/BitShuffle Since we're quite new at this, I have some questions about strategy. (1) First, it seems that legalizing v32i1 and v64i1 types for x86 would make sense. This will allow us to retain the shufflemasks involving these vector types into code generation. (2) To legalize these types, we need...