Notes

Compiler Design AKTU Handwritten PDF Notes Download: KCS 502

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Unit-I: Introduction to Compiler

This unit introduces students to the fundamentals of compilers. Key topics covered include:

Phases and passes of a compiler.
Bootstrapping and its significance.
Finite state machines, regular expressions, and their applications to lexical analysis.
Optimization of DFA-Based Pattern Matchers.
Implementation of lexical analyzers.
Formal grammars, BNF notation, and their application to syntax analysis.
YACC and its role in syntactic specification.

Unit-II: Basic Parsing Techniques

Unit-II focuses on parsing techniques and automatic construction of efficient parsers. Topics include:

Introduction to parsers.
Shift-reduce parsing.
Operator precedence parsing.
Top-down parsing.
Predictive parsers.
Construction of LR parsers and parsing tables (LR(0), SLR, Canonical LR, LALR).
Automatic parser generator.

Unit-III: Syntax-directed Translation

This unit explores syntax-directed translation and intermediate code generation. Topics covered are:

Syntax-directed translation schemes.
Implementation of syntax-directed translators.
Intermediate code representation (postfix notation, parse trees, syntax trees).
Translation of assignment statements, boolean expressions, flow control statements.
Translation with a top-down parser.
Handling array references, procedure calls, declarations, and case statements.

Unit-IV: Symbol Tables and Run-Time Administration

Unit-IV delves into symbol tables, runtime administration, and error detection. Topics include:

Data structures for symbol tables.
Representation of scope information.
Implementation of simple stack allocation scheme.
Storage allocation in block-structured languages.
Error detection and recovery mechanisms for lexical, syntactic, and semantic errors.

Unit-V: Code Generation and Optimization

In this final unit, students learn about code generation and optimization techniques. Topics covered include:

Design issues in code generation.
Target language and addressing in the target code.
Basic blocks and flow graphs.
Optimization of basic blocks.
Code generation algorithms.
Machine-independent optimizations.
Loop optimization techniques.
Data-flow analysis for code optimization.