Cliff Click is famous for writing the original hot-spot JIT compiler for the Java programming language. He is a compiler guru, and conducts a weekly compiler club that is open to anyone who wants to join.
I think this is a great forum for would be language designers to learn from compiler gurus. Of course even better if more experts joined the club too, sharing their knowledge!
Cliff Click's approach combines data flow framework, type framework, and SSA into a one unified data structure that is a graph intermediate representation.
Some of Cliff's papers: