//===---------------------------------------------------------------------===//
-Evaluate whether using movapd for SSE reg-reg moves is faster than using
-movsd/movss for them. It may eliminate false partial register dependences by
-writing the whole result register.
-
-//===---------------------------------------------------------------------===//
-
SSE should implement 'select_cc' using 'emulated conditional moves' that use
pcmp/pand/pandn/por to do a selection instead of a conditional branch: