Compiler Design Tutorial

A compiler is software that translates or converts a program written in a high-level language (Source Language) into a low-level language (Machine Language or Assembly Language). Compiler design is the process of developing a compiler.

• It involves many stages like lexical analysis, syntax analysis (parsing), semantic analysis, code generation, optimization, etc.
• The Key objectives of compiler design are to automate the translation process, check correctness of input code, and reporting errors in source code.
• It acts as the "translator" of the programming world, bridging the gap between human-readable code and machine-understandable instructions.
• Most of the early high level languages like C and C++ were compiled. However modern languages like Java and Python use both interpreter and compiler. Please note that compiler only translates but interpreter runs as well.

Introduction :

1. Introduction of Compiler design
2. Compiler construction tools
3. Phases of a Compiler
4. Symbol Table in Compiler
5. Error detection and Recovery in Compiler
6. Error Handling in Compiler Design
7. Language Processors: Assembler, Compiler and Interpreter
8. Generation of Programming Languages

Lexical Analysis :

1. Lexical Analysis
2. C program to detect tokens in a C program
3. Flex (Fast Lexical Analyzer Generator )

Quiz on Lexical Analysis

Syntax Analysis :

1. Introduction to Syntax Analysis
2. FIRST and FOLLOW
3. Classification of Context Free Grammars(CFG)
4. Ambiguous Grammar
5. Introduction to Parsers
6. Classification of top down parsers
7. Bottom Up Parser
8. Shift Reduce Parser in Compiler
9. SLR, CLR and LALR Parsers
10. Theory of Computation | Operator grammar and precedence parser

Syntax Directed Translation :

1. Syntax Directed Translation
2. S – attributed and L – attributed SDTs in Syntax directed translation

Quiz on Parsing and Syntax Directed Translation

Code Generation and Optimization :

1. Code Optimization
2. Intermediate Code Generation
3. Issues in the design of a code generator
4. Three address code in Compiler
5. Compiler Design | Detection of a Loop in Three Address Code
6. Introduction of Object Code
7. Data flow analysis in Compiler

Quiz on Code Generation and Optimization

Runtime Environments :

1. Static and Dynamic Scoping
2. Compiler Design | Runtime Environments
3. Compiler Design | Linker
4. Loader in C/C++
5. Developing a Linux based shell

Conclusion

Mastering compiler design is essential for anyone delving into programming languages and software development. Throughout this compiler design tutorial, we've covered crucial concepts such as lexical analysis, syntax analysis, semantic analysis, optimization techniques, and code generation. By understanding these foundations, you're equipped to build efficient compilers that transform source code into executable programs seamlessly.

Compiler Design Tutorial - FAQs

Write types of compilers?

There are three types of compilers given below:

1. Single-Pass Compilers
2. Two-Pass Compilers
3. Multi-pass Compilers

Difference between compiler and assembler?

A compiler translates high-level code into machine code or intermediate code, while an assembler converts assembly language into machine code. Simply put, a compiler handles high-level languages, and an assembler works with low-level assembly language.

Discuss the various phases of a compiler?

The various phases of the compiler are given below:

• Lexical Analyzer
• Syntax Analyzer
• Semantic Analyzer
• Intermediate code generator
• Code optimizer
• Code generator

What is assembler?

Assembler is a program that interprets assembly language written software programs into machine language that is known to the computer.

Quick Links :

• GATE | Previous Years Questions : Set – 1 , Set – 2
• Quiz on Compiler Design

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Article Tags :

• GATE CS
• Compiler Design
• GateCS2023