> a Rust compiler written in C++, using LLVM. FTR mrustc does not use LLVM, it compiles to C, which is then compiled using a C11 compatible compiler. So it can

> a Rust compiler written in C++, using LLVM. FTR mrustc does not use LLVM, it compiles to C, which is then compiled using a C11 compatible compiler. So it can "make use of LLVM" through clang for that last step, but that's not usually what people mean when they say that some project uses LLVM.