Design Language Processor

Why Generation of intermediate code based on an abstract machine model is useful in compilers?

• Writing for intermediate code generation

• Portability of the front end of the compiler

• Implementation of lexical analysis and syntax analysis is made easier

• All of the mentioned

Which phase of the compiler is also known as Parser?

• 1. Code Optimization

• 1. Semantic Analysis

• 1. Syntax Analysis

• 1. Lexical Analysis

Keywords are recognized in a compiler during

• 1. the code generation

• 1. the data flow analysis

• 1. the lexical analysis of the program

• 1. the program parsing

Which graph describes the basic block and successor relationship?

• 1. Control graph

• 1. DAG

• 1. Flow graph

• 1. Hamilton graph

In the compiler, the function of using intermediate code is:

• 1. to improve the register allocation

• 1. to increase the error reporting & recovery.

• 1. to make semantic analysis easier.

• 1. to increase the chances of re-using the machine-independent code optimizer in other compilers.

Which compiler runs on one machine and generates code for multiple machines?

• 1. Multipass compiler

• 1. Cross compiler

• 1. Optimizing compiler

• 1. Onepass compiler

Which parser is known as the shift-reduce parser?

• 1. Bottom-up parser

• 1. Top-down parser

• 1. Both Top-down and bottom-up

• 1. None of the Above

What type of conflicts can occur in the shift-reduce parsing?

• 1. reduce/reduce

• 1. shift/reduce

• 1. Both shift/reduce and reduce/reduce

• 1. None of the Above

Which optimization technique is used to reduce the multiple jumps?

• 1. Latter optimization technique

• 1. Peephole optimization technique

• 1. Local optimization technique

• 1. Code optimization technique

DAG is an abbreviation of?

• 1. Detecting Acyclic Graph

• 1. Data Acyclic Graph

• 1. Dynamic Acyclic Graph

• 1. Directed Acyclic Graph