UNIT - 4 B Compiler Optimization Quiz

What is the main objective of code optimization in compilers?

• To reduce the number of syntax errors

• To improve the performance of the generated code

• To simplify the source code

• To check for variable declarations

Which of the following is a source language issue in the context of compilers?

• The type of machine the program will run on

• The syntax of the programming language

• The amount of memory allocated

• The generated machine code

Which optimization technique involves replacing a subexpression with its computed value at compile time?

• Loop unrolling

• Constant folding

• Code motion

• Function inlining

What is the goal of storage organization in the context of compilers?

• To minimize the use of memory during execution

• To optimize the execution speed of a program

• To decide how memory is allocated and accessed for variables

• To identify dead code in the program

Which of the following is a technique used to allocate memory for variables in a program?

• Memory mapping

• Static allocation

• Dynamic memory management

• All of the above

Which memory allocation technique assigns memory at compile time, before the program is executed?

• Static allocation

• Dynamic allocation

• Stack allocation

• Heap allocation

What is a key issue related to accessing nonlocal data in a program?

• Deciding whether to use a stack or heap

• Handling scope and visibility of nonlocal variables

• Reallocating memory for global variables

• Avoiding circular references in the code

What does storage allocation refer to in the context of compilers?

• The process of determining the variable names used in the program

• The method of assigning memory locations to variables

• The optimization of memory during runtime

• The execution of program instructions

Which of the following optimization techniques can be applied to remove unnecessary computations within a function?

• Local optimization

• Global optimization

• Code motion

• Dead code elimination

What is the main advantage of local optimization in a compiler?

• It can improve the performance of a function by reducing redundant operations

• It optimizes the program globally by modifying the entire codebase

• It reduces the size of the program by removing unused functions

• It helps in dynamic memory allocation