Compiler Construction Instructor : Dr. Tiayyba Riaz [email protected] Fall - 2014 Course Code : CS4435 Credit Hours : 3 Class : BS Course Description: CS4435 provides the students with an opportunity to learn issues that arise in the design and construction of translators for programming languages. The course emphasizes techniques that have direct application to the construction of compilers. Not to forget many of the same concepts find application in the implementation of interpreters. Course Objectives: The aim of this module is to show how to apply the theory of language translation introduced in the prerequisite courses to build compilers. This course provide a thorough understanding of the basic structure of compilers for a programming language. A major part of the course consists of the implementation of a compiler for a simplified programming language. Student Learning Outcomes On completion of this unit students should be able to understand: 1. How the compiler works. 2. Phases of the compiler. 3. Implementation details of the compiler phases. Course Outline Date

Lecture

Description

Readings

Remarks

Week 1

Lecture 1

Introduction and course overview. Compilers, language processors, structure of compiler Introduction to lexical analysis, Role of Lexical Analyzer

Chapter 1 Sections: 1.1, 1.2

Introduction

Chapter 3 Sections: 3.1

Lexical Analyzer

Lecture 3

Specifications of tokens, Recognition of Tokens

Chapter 3 Sections: 3.2, 3.3

Lexical Analyzer

Lecture 4

Implementation details of Lexical Analyzer, Discussion of Programming Assignment 1 (PA1) in class

Chapter 3 Sections: 3.4

PA 1 out

15/09 - 19/09 Lecture 2 Week 2 22/09 - 26/09

  Week 3

Lecture 5

Syntax Directed Translation, Syntax Definition

Chapter 2 Section: 2.1, 2.2

CFG

Lecture 6

Syntax Analysis/Parsing : Roler of Parser, Syntax Error Handling

Chapter 4: Syntax analysis Sections 4.1, 4.1.1

Scanning/ Parsing

Scanning/ Parsing

29/09 - 03/10

Week 4 06/10 - 10/10 Week 5

Eid ul Adha Holidays Lecture 7

Context Free Grammar, Writing a Grammar, Elimination of Ambiguity, Elimination of Recursion

Chapter 4: Syntax analysis Sections: 4.2, 4.3

Lecture 8

Parsing Algorithms, Top down Parsing, Recursive Decent Parsing

Chapter 4: Syntax analysis Sections: 4.4

Lecture 9

First and Follow, LL(1) grammar

Lecture 10

Non recursive Predictive Parsing, Error Recovery in Predictive Parsing

Lecture 11

Bottom Up Parsing, Reductions, Handle Pruning, Shift-Reduce Parsing, Conflicts During Shift-Reduce Parsing Introduction to LR Parsing, Why LR Parsers?, Items and the LR(O) Automaton

Chapter 4: Syntax analysis Sections: 4.4 Chapter 4: Syntax analysis Sections: 4.4 Chapter 4 : Sections : 4.5

13/10 - 17/10

Week 6 20/10 - 24/10

Week 7 27/10 - 31/10

Lecture 12

Week 8

Lecture 13

The LR-Parsing Algorithm

03/11 - 07/11

Lecture 14

Constructing SLR-Parsing Tables

Week 9 10/11 - 14/11

Quiz 1 Scanning/ Parsing PA 1 due Scanning/ Parsing Scanning/ Parsing Scanning/ Parsing

Chapter 4 : Sections : 4.5

Scanning/ Parsing

Chapter 4 : Sections : 4.6

PA2 out Scanning/ Parsing Scanning/ Parsing

Mid Term Exam

Week 10

Lecture 15

Introduction to Semantic Syntax-directed definitions Evaluation Orders for SDD

Analysis

using

Chapter 5: Sections : 5.1 Chapter 5 : Sections : 5.2 Chapter 5 : Sections : 5.3

Semantics

17/11 – 21/11

Lecture 16

Week 11

Lecture 17

Applicatios of Syntax directed translation: Bottom-up evaluation of S-attributed definitions

Lecture 18

Top down translation

Chapter 5: Sections : 5.4 Chapter 5(*Ed 1) Section : 5.5

Semantics

Lecture 19

Top down translation

Lecture 20

Bottom up evaluation of inherited attributes

Chapter 5(*Ed 1) Section : 5.5

Semantics PA2 due

Lecture 21

Intermediate Code generation

Chapter 6

Semantics

Semantics Semantics

24/11 – 28/11

Week 12

Semantics

01/12-05/12

Week 13

  Variants of Syntax Trees, three address codes 08/12-12/12 Week 14

Declarations,

Translation

Sections: 6.1, 6.2

Lecture 22

Types and Expressions

of

Chapter 6 Sections : 6.3

Lecture 23

Type Checking I

Sections : 6.5

Lecture 24

Type Checking II

Sections : 6.5

Lecture 25

Run-time Environment Storage organization

Chapter 7 Section: 7.1

Lecture 26

Stack Allocation of Space

Chapter 7 Section: 7.2

Intermediate Code generation Quiz 2 Intermediate Code generation Intermediate Code generation Intermediate Code generation Run-time Environment

Lecture 27

Access to Nonlocal Data on the Stack

Chapter 7 Section: 7.3

Run-time Environment

Lecture 28

Heap Management

Chapter 7 Section: 7.4

Run-time Environment

15/12-19/12 Week 15 22/12-26/12

Week 16 29/12-02/01

Week 17 05/01-09/01

Week 18 12/12-16/01

Project Evaluation