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

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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

Reporting an issue

LLVM is software and even compilers are not exempt from bugs.

One of the ways you can start contributing to the LLVM project is by reporting issues.

For example, if you find a crash in Clang, it will instruct you how to report this issue and provide you with a reproducer.

If you find an issue in any component while using it, the issue potentially being as simple as missing or incorrect documentation, file an issue (or fix it directly!) in the GitHub tracker at https://github.com/llvm/llvm-project/issues.

In any case, make sure your report is actionable in the following ways:

Include the configuration:
- The version of LLVM
- The OS
- How LLVM was built
- Anything that you think may be relevant (e.g., host CPU, etc.)
Upload the reduced input
Provide the steps to reproduce
Explain how the observed behavior departs from the expected behavior
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