[llvm] [LLVM][NVPTX] Add cp.async.bulk.commit/wait intrinsics (PR #78698)

[Durgadoss R via llvm-commits]

durga4github wrote:

> Please verify that the new instructions are actually accepted by ptxas by running the new tests with `LLVM_PTXAS_EXECUTABLE=/path/to/cuda/bin/ptxas` set in the environment.

I did check them (and again checked now). The ptx compiles smoothly.
Do you see any issues at your end?

https://github.com/llvm/llvm-project/pull/78698