"Brian Budge" <brian.budge@xxxxxxxxx> writes: > Anyway, Matthieu, since the *mmintrin* files seem to be sticking > around, I'd suggest you use those instead of the __builtins for > SSE/MMX. Yes, the plan of record is to support the same set of builtins as the Intel compiler, which means mmintrin.h, etc. There is some documentation available on the Intel site; there is currently, unfortunately, no correct documentation in the gcc manual. Ian