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Mapping High Level Constructs to LLVM IR

Click here to read the book on readthedocs.org

About

This is a gitbook dedicated to providing a description on how LLVM based compilers map high-level language constructs into the LLVM intermediate representation (IR).

This document targets people interested in how modern compilers work and want to learn how high-level language constructs can be implemented. Currently the books focuses on C and C++, but contributions about other languages targeting LLVM are highly welcome. This document should help to make the learning curve less steep for aspiring LLVM users.

For the sake of simplicity, we'll be working with a 32-bit target machine so that pointers and word-sized operands are 32-bits. Also, for the sake of readability we do not mangle (encode) names. Rather, they are given simple, easy-to-read names that reflect their purpose. A production compiler for any language that supports overloading would generally need to mangle the names so as to avoid conflicts between symbols.

Contributing

The repository for this document is hosted on github. All contributions are welcome. If you find an error file an Issue or fork the repository and create a pull-request.

License

UNLESS OTHERWISE NOTED, THE CONTENTS OF THIS REPOSITORY/DOCUMENT ARE LICENSED UNDER THE CREATIVE COMMONS ATTRIBUTION - SHARE ALIKE 4.0 INTERNATIONAL LICENSE

.. toctree::
   :maxdepth: 1
   :caption: Contents:

   a-quick-primer/index
   basic-constructs/index
   control-structures/index
   object-oriented-constructs/index
   exception-handling/index
   advanced-constructs/index
   interoperating-with-a-runtime-library/index
   interfacing-to-the-operating-system/index
   epilogue/index
   appendix-a-how-to-implement-a-string-type-in-llvm/index

About

A guide that explains how high level programming language constructs are mapped to the LLVM intermediate language.

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