Explain what is meant by the “level” of an intermediate form (IF). What are the comparative advantages and disadvantages of high-, medium-, and lowlevel IFs? What is the IF most commonly used in Ada...

Explain what is meant by the “level” of an intermediate form (IF). What are the comparative advantages and disadvantages of high-, medium-, and lowlevel IFs? What is the IF most commonly used in Ada compilers? Name two advantages of a stack-based IF. Name one disadvantage.