NIELIT Scientific Assistant A 2020 November: 50

Question

Some code optimizations are carried out on the intermediate code because:

• A. they enhance the portability of the compiler to other target processors
• B. program analysis is more accurate on intermediate code than on machine code
• C. the information from data flow analysis cannot otherwise be used for optimization
• D. the information from the front end cannot otherwise be used for optimization

Comments

Option A 

reference:- https://gateoverflow.in/410/gate-cse-2008-question-12

Answer 1

 

Program analysis is more accurate on intermediate code than on machine code. It is also correct but the most optimal answer is A .

 

A. They enhance the portability of the compiler to other target processors ..