There is a growing set of individuals and projects who are building compiler and analytics tooling around LLVM. Many of us met IRL at ETHDenver this week. Please do join us on Telegram to continue the conversation, or on this Magicians Forum thread.
Three key active projects are SOLL + LLVM-EVM and Solang, both of which have working Solidity compilers using LLVM, for eWASM/EVM and WASM respectively: