This is basically what I meant. Julia doesn't really have a bytecode. There is a lower, type-inferred form of the AST as well as the llvm IR representation. How

This is basically what I meant. Julia doesn't really have a bytecode. There is a lower, type-inferred form of the AST as well as the llvm IR representation. However, instruction selection itself takes quite a bit of time, so if we're caching the IR, we might as well cache the generated machine code (the challenges are basically the same). As I said, it's work-in-progress (it's not that it's hard or anything, but it's a bit of work do it properly, which isn't done yet).