[pertymcpert]

Google are a bigger contributor to LLVM than Apple and they don't have any proprietary compiler for C/C++.

[pjmlp]

Actually both of them have moved away from their clang involvement, hence why clang has slowed down in ISO C++ compliance, as compiler vendors using clang forks don't seem that keen in helping upstream.

[teddyh]

Google supporting a project does not make me trust that project more. Rather the opposite, in fact.