/Gw Enables whole-program global data optimization.
/GL Whole program optimization
The /Ox compiler option is the same as using the following options in combination:
/Ob (Inline Function Expansion), where the option parameter is 2 (/Ob2)
/Oi (Generate Intrinsic Functions)
/Ot (Favor Fast Code)
/Oy (Frame-Pointer Omission)
/Ox is mutually exclusive from:
/O1 (Minimize Size)
/O2 (Maximize Speed)
/Od (Disable (Debug))