CS6660-Compiler-Design-Notes

CS6660 COMPILER DESIGN L T P C 3 0 0 3

OBJECTIVES:

The student should be made to:

Ø Learn the design principles of a Compiler.

Ø Learn the various parsing techniques and different levels of translation.

Ø Learn how to optimize and effectively generate machine codes.65

UNIT I INTRODUCTION TO COMPILERS 5

Translators-Compilation and Interpretation-Language processors -The Phases of Compiler-Errors

Encountered in Different Phases-The Grouping of Phases-Compiler Construction Tools -

Programming Language basics.

UNIT II LEXICAL ANALYSIS 9

Need and Role of Lexical Analyzer-Lexical Errors-Expressing Tokens by Regular ExpressionsConverting Regular Expression to DFA- Minimization of DFA-Language for Specifying Lexical

Analyzers-LEX-Design of Lexical Analyzer for a sample Language.

UNIT III SYNTAX ANALYSIS 10

Need and Role of the Parser-Context Free Grammars -Top Down Parsing -General StrategiesRecursive Descent Parser Predictive Parser-LL(1) Parser-Shift Reduce Parser-LR Parser-LR (0)ItemConstruction of SLR Parsing Table -Introduction to LALR Parser - Error Handling and Recovery in

Syntax Analyzer-YACC-Design of a syntax Analyzer for a Sample Language .

UNIT IV SYNTAX DIRECTED TRANSLATION & RUN TIME ENVIRONMENT 12

Syntax directed Definitions-Construction of Syntax Tree-Bottom-up Evaluation of S-Attribute

Definitions- Design of predictive translator - Type Systems-Specification of a simple type checkerEquivalence of Type Expressions-Type Conversions.

RUN-TIME ENVIRONMENT: Source Language Issues-Storage Organization-Storage AllocationParameter Passing-Symbol Tables-Dynamic Storage Allocation-Storage Allocation in FORTAN.

UNIT V CODE OPTIMIZATION AND CODE GENERATION 9

Principal Sources of Optimization-DAG- Optimization of Basic Blocks-Global Data Flow AnalysisEfficient Data Flow Algorithms-Issues in Design of a Code Generator - A Simple Code Generator Algorithm.