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

[Joel E. Denny via llvm-commits]

jdenny-ornl wrote:

> Can you put an rst file to https://github.com/llvm/llvm-project/tree/main/llvm/docs instead of hiding everything in a header?

It's in `llvm/docs/KernelInfo.rst`.  Any suggestions on what other docs should link to it?

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