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

[Thorsten Schütt via llvm-commits]

tschuett 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?

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