LLVM

[Matthew Browne]

Good introductory article about LLVM and how it can be used to speed up development of new programming languages or JIT compilers for existing languages:

https://www.infoworld.com/article/3247799/what-is-llvm-the-power-behind-swift-rust-clang-and-more.html

I hope everyone is staying healthy—fortunately doing fine here in NYC!

[Matthew Browne]

or JIT compilers for existing languages

Correction: not only JIT compilers, but also AOT (ahead of time) compilers to native bytecode, for languages that don't already have that. LLVM supports both use cases.