[jjnoakes]

Who needs more than one dialect of C or C++? I don't. Any systems I'm interested in may not support clang, but they have C11 compilers and C++14 compilers.

Rust is not interoperable with C++ as far as I know, and even if it was, I'm not interested in Rust for this discussion for reasons I've mentioned elsewhere.

The LLVM C backend was removed. Julia devs have a version that supports the LLVM bit code that they require, but I believe it is not everything LLVM can produce.

I was under the impression that march=cpp output C++ code that rebuilt the IR, not implemented the source program.

Thanks for the advice, although none of it really applies to what I'm suggesting.