Clang Compiler Frontend

4

Basic Libraries and Tools

LLVM is written in the C++ language and, as of July 2022, it uses the C++17 version of the C++ standard [6]. LLVM actively utilizes functionality provided by the Standard Template Library (STL). On the other hand, LLVM contains numerous internal implementations [13] for fundamental containers, primarily aimed at optimizing performance. For example, llvm::SmallVector has an interface similar to std::vector but features an internally optimized implementation. Hence, familiarity with these extensions is essential for anyone wishing to work with LLVM and Clang.

Additionally, LLVM has introduced other development tools such as TableGen, a domain specific language (DSL) designed for structural data processing, and LIT ...