Chapters 3 and 4 are now in subversion: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/tutorial/OCamlLangImpl3.html?view=co http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/tutorial/OCamlLangImpl4.html?view=co These modules add support for codegen and jitting. Control structures are next :)