[clang] [llvm] [mlir] [NVPTX] Add support for Shared Cluster Memory address space [1/2] (PR #135444)

[via llvm-commits]

modiking wrote:

Thanks for the thorough review! I'm splitting this so that this change only contains the addrspace + new instructions/intrinsics and the follow-up PR https://github.com/llvm/llvm-project/pull/136768 is updating the existing intrinsics.

https://github.com/llvm/llvm-project/pull/135444