CUDA LLVM compiler samples

Hello, the page https://developer.nvidia.com/cuda-llvm-compiler says there are samples for building compilers targeting NVidia GPUs. I joined the program, but they said this is now distributed with the SDK. All I found in SDK is

/usr/local/cuda/nvvm/libnvvm-samples

which has some codes but not samples as shown in website (R language, other frontends, Clang). Is there a separate place for sample codes of using libNVVM, etc?

Thanks