kodemizer

I think the most promising thing on this front is Cranelift (https://github.com/CraneStation/cranelift). The idea is that, when cranelift is ready, we might use it for debug builds (but still use LLVM for release builds).

I'm not sure when the last time you've used Rust is, but that hasn't been true in quite a while (not sure how long exactly). Cargo now has incremental compilation, and it's turned on by default. It's great!