Uh ... no? CFront did that when it was just "C with Classes", but nowadays with C++14? That would be absolutely terrifying.
One of its features is: "a C-generating back end, which can be used to generate C code for C++ programs"
source: https://www.edg.com/index.php?location=c_frontend
In fact, the Itanium C++ ABI (which has no relation to the architecture) specifically uses valid C identifiers to mangle C++ names to support products like EDG.
source: http://mentorembedded.github.io/cxx-abi/abi.html#mangling-ty...
Uh ... no? CFront did that when it was just "C with Classes", but nowadays with C++14? That would be absolutely terrifying.