miniblog.

TIL that Rust's dbg! macro also works in release builds, so you can debug issues when you need the perf of a release build. This differs from debug_assert! which is ignored in release builds.

I originally heard about Cranelift in the context of fast rustc builds in debug mode. TIL it was originally written to make webassembly run faster! https://github.com/bytecodealliance/wasmtime/tree/main/cranelift (via https://hacks.mozilla.org/2018/10/webassemblys-post-mvp-future/)

Both the Rust and Zig communities are exploring building their own compiler backends for fast debug builds. Perhaps there's a place for a super-reusable "LLVM lite"?