Note rustc hacking guide middle end - vadimcn/rust GitHub Wiki

The middle end includes the resolver, typechecker, kind checker, typestate checker, and various other semantic analysis passes. The source files for it live in src/librustc/middle. The middle end also includes the code generator that generates LLVM code from Rust abstract syntax tree: the code generator files are in src/librustc/middle/trans.

• Note Intrinsics