Introduction to Compiler Design Video Lecture | Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)

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FAQs on Introduction to Compiler Design Video Lecture - Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)

1. What is compiler design?
Ans. Compiler design is the process of creating a compiler, which is a software tool that translates a high-level programming language into a lower-level language, such as machine code or assembly language. It involves various stages, including lexical analysis, syntax analysis, semantic analysis, code generation, and optimization.
2. What is the significance of compiler design?
Ans. Compiler design plays a crucial role in software development as it enables programmers to write code in high-level languages that are easier to understand and maintain. It also ensures that programs are translated efficiently into machine code, helping to improve execution speed and overall performance.
3. What are the different phases/stages involved in compiler design?
Ans. Compiler design typically involves the following phases or stages: 1) Lexical Analysis: This stage breaks the source code into tokens or lexemes. 2) Syntax Analysis: It checks the syntax of the code and builds a parse tree or abstract syntax tree. 3) Semantic Analysis: It verifies the meaning of the code and performs type checking. 4) Code Generation: It translates the code into a lower-level language, such as assembly language or machine code. 5) Optimization: It optimizes the generated code to improve efficiency and performance.
4. What are the challenges faced during compiler design?
Ans. Compiler design can pose several challenges, including: 1) Handling complex grammar: Dealing with ambiguous or complex grammar rules can be challenging during parsing. 2) Efficient code generation: Generating optimized and efficient code is a complex task, requiring careful consideration of various factors. 3) Error handling: Designing an effective error handling mechanism to identify and report errors in the source code can be challenging. 4) Language compatibility: Ensuring compatibility with different programming languages and their features can be a challenge. 5) Performance optimization: Striving for high-performance output while balancing code complexity can be a delicate task.
5. How does a compiler differ from an interpreter?
Ans. A compiler and an interpreter are both tools used to convert high-level programming code into a lower-level language, but they differ in their approach. A compiler translates the entire source code into machine code before execution, generating an executable file. On the other hand, an interpreter translates and executes the code line by line, without generating an executable file. Interpreters are generally slower but more flexible, while compilers produce faster performance but lack flexibility.
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