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Clang Compiler Frontend

You're reading from   Clang Compiler Frontend Get to grips with the internals of a C/C++ compiler frontend and create your own tools

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Product type Paperback
Published in Mar 2024
Publisher Packt
ISBN-13 9781837630981
Length 326 pages
Edition 1st Edition
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Author (1):
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Ivan Murashko Ivan Murashko
Author Profile Icon Ivan Murashko
Ivan Murashko
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Table of Contents (17) Chapters Close

Preface 1. Part I: Clang Setup and Architecture
2. Chapter 1: Environment Setup FREE CHAPTER 3. Chapter 2: Clang Architecture 4. Chapter 3: Clang AST 5. Chapter 4: Basic Libraries and Tools 6. Part II: Clang Tools
7. Chapter 5: Clang-Tidy Linter Framework 8. Chapter 6: Advanced Code Analysis 9. Chapter 7: Refactoring Tools 10. Chapter 8: IDE Support and Clangd 11. Part III: Appendix
12. Bibliography
13. Index 14. Other Books You Might Enjoy Appendix 1: Compilation Database 1. Appendix 2: Build Speed Optimization

4.5 LLVM supporting tools

The LLVM project has its own tooling support. The most important LLVM tools are TableGen and LIT (which stands for LLVM Integrated Tester). We will look into them with examples from the Clang code. These examples should help us understand the purpose of the tooling and how they can be used.

4.5.1 TableGen

TableGen is a domain-specific language (DSL) and associated tool used in the LLVM project for the purpose of describing and generating tables, particularly those that describe a target architecture. This is highly useful for compiler infrastructure, where one frequently needs to describe things such as instruction sets, registers, and various other target-specific attributes in a structured manner.

TableGen is employed in various parts of the Clang compiler. It’s primarily used where there’s a need to generate large amounts of similar code. For instance, it can be used for supporting cast operations that necessitate extensive enum declarations...

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