This is a pretty good tutorial that I know of: https://www.stephendiehl.com/llvm/ https://www.stephendiehl.com/llvm/. The author went on to write a book too, th

This is a pretty good tutorial that I know of: https://www.stephendiehl.com/llvm/ https://www.stephendiehl.com/llvm/. The author went on to write a book too, though it's still in progress http://dev.stephendiehl.com/fun/ http://dev.stephendiehl.com/fun/