Q52.Marks: +2.0UGC NET Paper 2: Computer Sc 23rd August 2024 Shift 1
Which of the following tasks could be attained using syntax trees in compiler design?
(A) Type Checking
(B) Code Generation
(C) Code Optimization
(D) Error Handling
Choose the correct answer from the options given below:
1.(A), (B), (C) Only✓ Correct
2.(B), (C), (D) Only
3.(A), (C), (D) Only
4.(A), (B), (D) Only
Solution
The correct answer is 1)(A), (B), (C) Only
EXPLANATION:
(A) Type Checking -
This statement is CORRECT. Syntax trees help in representing the hierarchical structure of a source program, which is essential for type checking. They help the compiler verify that the operations in the code are semantically correct.
(B) Code Generation -
This statement is CORRECT. Syntax trees are used to generate intermediate code or machine code by traversing the tree and emitting the corresponding machine instructions.
(C) Code Optimization -
This statement is CORRECT. Syntax trees can be manipulated and optimized to improve the performance of the generated code. This includes optimizations like constant folding, dead code elimination, and loop transformations.
(D) Error Handling -
This statement is NOT CORRECT. While syntax trees are crucial for understanding the structure of the code, error handling is generally managed during the parsing phase when syntax trees are created. Syntax trees themselves are not directly used for error handling.