Neural Networks, Machine Learning and Artificial Intelligence. Ever wanted to use LLVM from C? Can't find any documentation? Welcome. Since I'm considering retargeting CLISP'S JIT Compiler I've been experimenting with LLVM. LLVM is an optimizing compiler for a virtual instruction set. Technically, it is very interesting. And this year, with Apple and CLANG in the game, it seems to be here to stay.