Where do I find GPUCC so that I can install it?
http://llvm.org/docs/CompileCudaWithLLVM.html
The team at Google published a paper in CGO 2016 detailing the optimizations they’d made to clang/LLVM. Note that “gpucc” is no longer a meaningful name: The relevant tools are now just vanilla clang/LLVM.
There is a Hello World program on that page, which looks good.