[llvm] [KernelInfo] Implement new LLVM IR pass for GPU code analysis (PR #102944)

[Joel E. Denny via llvm-commits]

jdenny-ornl wrote:

> Short-term you could add an Offload.rst and link everything from there. Long-term you may ask for offload.llvm.org.

Maybe, but it seems beyond the scope of this patch.  @jdoerfert, any opinion on the docs?

https://github.com/llvm/llvm-project/pull/102944