You're reading from LLVM Code Generation A deep dive into compiler backend development

Product type Paperback

Published in May 2025

Publisher Packt

ISBN-13 9781837637782

Length 620 pages

Edition 1st Edition

Languages

C++

Tools

LLVM

Concepts

Programming Language

Author (1):

Quentin Colombet

View More author details

Table of Contents (30) Chapters

Preface

1. Part 1: Getting Started with LLVM

2. Building LLVM and Understanding the Directory Structure FREE CHAPTER

3. Contributing to LLVM

4. Compiler Basics and How They Map to LLVM APIs

5. Writing Your First Optimization

6. Dealing with Pass Managers

7. TableGen – LLVM Swiss Army Knife for Modeling

8. Part 2: Middle-End: LLVM IR to LLVM IR

9. Understanding LLVM IR

10. Survey of the Existing Passes

11. Introducing Target-Specific Constructs

12. Hands-On Debugging LLVM IR Passes

13. Part 3: Introduction to the Backend

14. Getting Started with the Backend

15. Getting Started with the Machine Code Layer

16. The Machine Pass Pipeline

17. Part 4: LLVM IR to Machine IR

18. Getting Started with Instruction Selection

19. Instruction Selection: The IR Building Phase

20. Instruction Selection: The Legalization Phase

21. Instruction Selection: The Selection Phase and Beyond

22. Part 5: Final Lowering and Optimizations

23. Instruction Scheduling

24. Register Allocation

25. Lowering of the Stack Layout

26. Getting Started with the Assembler

27. Unlock Your Book’s Exclusive Benefits

28. Other Books You May Enjoy

29. Index

Technical requirements

For this chapter, we recommend that you have a copy of the LLVM source code so that you can look at the content of the CodeGen library in the llvm/lib/CodeGen and llvm/include/llvm/CodeGen directories. These directories contain passes and helper classes that are used throughout the target-independent code generator. Note that the paths are expressed relative to the root directory of the LLVM code base.

You can find a copy of the LLVM code base at one of the following locations:

The official LLVM releases website: https://releases.llvm.org
The official LLVM GitHub repository: https://github.com/llvm/llvm-project
This book’s GitHub repository: https://github.com/PacktPublishing/LLVM-Code-Generation

Additionally, you’ll need a version of the LLVM binaries to be able to run the examples that live in the ch13 folder of this book’s GitHub repository at https://github.com/PacktPublishing/LLVM-Code-Generation...