Just a small clarificatation: the 2.x version of LuaJIT only compiles floating point operations to SSE2 (http://lua-users.org/lists/lua-l/2010-03/msg00142.html

Just a small clarificatation: the 2.x version of LuaJIT only compiles floating point operations to SSE2 (http://lua-users.org/lists/lua-l/2010-03/msg00142.html http://lua-users.org/lists/lua-l/2010-03/msg00142.html). I'm not sure, however, whether it does vectorization or just operates on one float at a time.