Chapter 9: Working with PassManager and AnalysisManager

In the previous section of this book, Frontend Development, we began with an introduction to the internals of Clang, which is LLVM's official frontend for the C family of programming languages. We went through various projects, involving skills and knowledge, that can help you to deal with problems that are tightly coupled with source code.

In this part of the book, we will be working with LLVM IR – a target-independent intermediate representation (IR) for compiler optimization and code generation. Compared to Clang's Abstract Syntax Tree (AST), LLVM IR provides a different level of abstraction by encapsulating extra execution details to enable more powerful program analyses and transformations. In addition to the design of LLVM IR, there is a mature ecosystem around this IR format, which provides countless resources, such as libraries, tools, and algorithm implementations. We will cover a variety of topics...