The problems that llvmc solved have largely been subsumed with the
tasks that the clang driver can accomplish, but llvmc lacks flexibility
and depends too heavily on the EOL'd llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140093 91177308-0d34-0410-b5e6-96231b3b80d8