Interesting. I currently use Python's AST to convert some nested logical query expression (in a syntax unique to my application) into bytecode executed by a specialized VM (I originally tried using V8 and LuaJit for this but performance wise that was unsuccessful; the project replaced some old Boost::Python C++ code). This article should make it easy to get started attempting an LLVM replacement.
Yes, LLVM is a great approach for doing code-gen from arbitrary specialized VMs. And the Python interface to it makes it easy to experiment. We no longer use llvmpy for Numba (we use a simpler interface llvmlite) and so llvmpy could use a maintainer.
