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1. What is a Compiler? | Compiler design tutorial | Introduction to Compiler design for GATE CSE

What is compiler and why is it needed in compiler design is explained fully here. In this video of CSE concepts with Parinita Hajra, we'll be seeing about the introduction of compiler design and why is it required.
What is compiler ? and why we use compiler? and need of compiler's.
Video - Compiler Explained
What is a Compiler ?
Why we use Compiler ?

A compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's processor uses. Typically, a programmer writes language statements in a language such as Pascal or C one line at a time using an editor.


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what is compiler design,
Phases of compiler design,
,,, Compiler design involves understanding the process of translating high-level programming languages into executable machine code, encompassing topics like lexical analysis, parsing, semantic analysis, intermediate code generation, optimization, and code generation. 

Here's a more detailed list of key topics in compiler design:

I. Fundamental Concepts:

Introduction to Compiler Design: 

What is a compiler? 

Phases of a compiler ,,
lexical analysis,,
syntax analysis,
semantic analysis,
intermediate code generation,
optimization,
code generation,
 

Compiler construction tools (e.g., lex, yacc, ANTLR) ,

Language Processors: ,

Assembler, #compiler, and #interpreter ,

Generation of programming languages ,

Error Handling: ,

Error detection and # recovery in compilers ,

Error handling strategies ,

II. Lexical Analysis:,

Lexical Analysis:,

Role of the lexical analyzer ,

Tokens, # patterns, and # lexemes ,

Finite state machines (DFAs, NFAs) ,

#Lexical Errors and #Error Recovery: ,

#Input Buffering: ,

III. Syntax Analysis (Parsing): ,

#Syntax Analysis:  ,

#Introduction to syntax analysis ,

#Context-free grammars (CFGs) ,

#Ambiguous grammars ,

#Parsing techniques (top-down, bottom-up) ,

#LL(1), #LR(0), #SLR, #CLR, #LALR parsers ,

#FIRST and FOLLOW sets ,

#Syntax Directed Translation: ,

#S-attributed and L-attributed SDTs ,

#IV. Semantic Analysis: ,

#Semantic Analysis: ,

#Type checking ,

#Symbol table management ,

#Error detection and recovery ,

Lexical Analysis
Errors in compiler
No of lexemes
Parser
Top Down Parser( LL1)
Bottom Up Parser( LR0, SLR, CLR1, LALR1)
FIRST/FOLLOW
Syntax Directed Translation
Types of SDT
Intermediate Code Generation
Code Representation(3AC, DAG)
Static Single Assignment
Code Optimization
Control Flow Graph(Leader)
Types of Optimization
Storage Allocation Strategies(Static, Stack, Heap)
Runtime Environments
Activation Records
Access Link
Control Link
Liveness Analysis(NEWLY ADDED)