Rust is the only language I know that systematically tests new compilers against a big real-world corpus: https://internals.rust-lang.org/t/regression-reports-stable-2015-09-17-vs-beta-2015-10-02-nightly-10-06/2737 amazing!
miniblog.
Related Posts
The author of rust-analyzer discussing how language features help or hinder fast IDEs.
If you allow `from m import *` you can't analyse files in isolation, and it's even harder in Rust.
Implementing interactive languages, and the tradeoffs of interpreters, JIT compilers, and AOT compilers:
Interpreters versus compilers as a spectrum, and a fun worked example of optimising Brainfuck: