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Learn LLVM 17

You're reading from   Learn LLVM 17 A beginner's guide to learning LLVM compiler tools and core libraries with C++

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Product type Paperback
Published in Jan 2024
Publisher Packt
ISBN-13 9781837631346
Length 416 pages
Edition 2nd Edition
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Authors (2):
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Kai Nacke Kai Nacke
Author Profile Icon Kai Nacke
Kai Nacke
Amy Kwan Amy Kwan
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Amy Kwan
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Toc

Table of Contents (20) Chapters Close

Preface 1. Part 1: The Basics of Compiler Construction with LLVM
2. Chapter 1: Installing LLVM FREE CHAPTER 3. Chapter 2: The Structure of a Compiler 4. Part 2: From Source to Machine Code Generation
5. Chapter 3: Turning the Source File into an Abstract Syntax Tree 6. Chapter 4: Basics of IR Code Generation 7. Chapter 5: IR Generation for High-Level Language Constructs 8. Chapter 6: Advanced IR Generation 9. Chapter 7: Optimizing IR 10. Part 3: Taking LLVM to the Next Level
11. Chapter 8: The TableGen Language 12. Chapter 9: JIT Compilation 13. Chapter 10: Debugging Using LLVM Tools 14. Part 4: Roll Your Own Backend
15. Chapter 11: The Target Description 16. Chapter 12: Instruction Selection 17. Chapter 13: Beyond Instruction Selection 18. Index 19. Other Books You May Enjoy

Advanced IR Generation

With IR generation introduced in the previous chapters, you can already implement most of the functionality required in a compiler. In this chapter, we will look at some advanced topics that often arise in real-world compilers. For example, many modern languages make use of exception handling, so we’ll look at how to translate this into LLVM IR.

To support the LLVM optimizer so that it can produce better code in certain situations, we must add additional type metadata to the IR code. Moreover, attaching debug metadata enables the compiler’s user to take advantage of source-level debug tools.

In this chapter, we will cover the following topics:

  • Throwing and catching exceptions: Here, you will learn how to implement exception handling in your compiler
  • Generating metadata for type-based alias analysis: Here, you will attach additional metadata to LLVM IR, which helps LLVM to better optimize the code
  • Adding debug metadata: Here...
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