l INTRODUCTION l.1 Why Compilers? A Brief History 1.2 Programs Related to Compilers 4 l.3 The Translation Process 7 l.4 Major Data Structures in a Compiler l3 1.5 Other Issues in Compiler Structure 14 l.6 Bootstrapping and Porting 18 l.7 The TINY Sample Language and Compiler 22 1.8 C-Minus: A Language for a Compiler Project 26 Exercises 27 Notes and References 29
2 SCANNING 31 2.1 The Scanning Process 32 2.2 Regular Expressions 34 2.3 Finite Automata 47 2.4 From Regular Expressions to DFAs 64 2.5 Implementation of a TINY Scanner 75 2.6 Use of Lex to Generate a Scanner Automatically 81 Exercises 89 Programming Exercises 93 Notes and References 94
3 CONTEXT-FREE GRAMMARS AND PARSING 95 3.l The Parsing Process 96 3.2 Context-Free Grammars 97 3.3 Parse Trees and Abstract Syntax Trees 106 3.4 Ambiguity 114 3.5 Extended Notations: EBNF and Syntax Diagrams 123 3.6 Formal Properties of Context-Free Languages 128 3.7 Syntax of the TINY Language 133 Exercises 138 Notes and References 142
4 T0P-D0WN PARSING l43 4.1 Top-Down Parsing by Recursive-Descent l44 4.2 LL(1) Parsing 152 4.3 First and Follow Sets 168 4.4 A Recursive-Descent Parser for the TINY Language l80 4.5 Error Recovery in Top-Down Parsers l83 Exercises l89 Programming Exercises l93 Notes and References 196
5 BOTTOM-UP PARSING 197 5.1 Overview of Bottom-Up Parsing 198 5.2 Finite Automata of LR(0) Items and LR(0) Parsing 20l 5.3 SLR(1) Parsing 2l0 5.4 General LR(l) and LALR(l) Parsing 217 5.5 Yacc: An LALR(l) Parser Generator 226 5.6 Generation of a TINY Parser Using Yacc 243 5.7 Error Recovery in Bottom-Up Parsers 245 Exercises 250 Programming Exercises 254 Notes and References 256
6 SEMANTIC ANALYSIS 257 6.1 Attributes and Attribute Grammars 259 6.2 Algorithms for Attribute Computation 270 6.3 The Symbol Table 295 6.4 Data Types and Type Checking 313 6.5 A Semantic Analyzer for the TINY Language 334 Exercises 339 Programming Exercises 342 Notes and References 343
7 RUNTIME ENVIRONMENTS 345 7.l Memory Organization During Program Execution 346 7.2 Fully Static Runtime Environments 349 7.3 Stack-Based Runtime Environments 352 7.4 Dynamic Memory 373 7.5 Parameter Passing Mechanisms 381 7.6 A Runtime Environment for the TINY Language 386 Exercises 388 Programming Exercises 395 Notes and References 396
8 CODE GENERATION 397 8.1 Intermediate Code and Data Structures for Code Generation 8.2 Basic Code Generation Techniques 8.3 Code Generation of Data Structure References 8.4 Code Generation of Control Statements and Logical Expressions 8.5 Code Generation of Procedure and Function Calls 8.6 Code Generation in Commercial Compilers: Two Case Studies 8.7 TM: A Simple Target Machine 8.8 A Code Generator for the TINY Language 8.9 A Survey of Code Optimization Techniques 8.l0 Simple Optimizations for the TINY Code Generator Exercises Programming Exercises Notes and References
Appendix A C0MPILER PROJECT A.l Lexical Conventions of C- A.2 Syntax and Semantics of C- A.3 Sample Programs in C- A.4 A TINY Machine Runtime Environment for the C-- Language A.5 Programming Projects Using C-- and TM
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