Program Use Only Section That's Needed For Current Execution Instead Of Checking Every Argument Every Time?

FIRST = arguments checked against each other

SECOND = arguments checked against each other but are irregardless of the FIRST arguments.

If (FIRST and (FIRST or (FIRST and FIRST))) OR (SECOND or (SECOND or SECOND or (SECOND and (SECOND or SECOND)))) then As the program processes this line over a million times during the execution, only FIRST or SECOND section is needed during an execution, never both. How do I make the program use only the section that's needed for the current execution instead of checking every argument every time? Is there a way to turn a string into an argument list for an IF...THEN statement? [code]