x2 [1, inFeatures] · W → [1, outFeatures] in x2's dtype over row-major 2- or 4-bit codes [rows, cols·K/32]. Borrows inputs.
x2 [1, inFeatures] · W → [1, outFeatures] in x2's dtype over row-major 2- or 4-bit codes [rows, cols·K/32]. Borrows inputs.