[llvm] [experimental] Ask copilot to check perf profile degradation (PR #146271)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 commented:

(It looks like you meant to request reviewers rather than assign people to the PR?)

This seems reasonable enough to me. This does seem a bit specific to one specific problem though. I'm hoping Copilot is good enough to ignore these instructions when analyzing changes that don't modify function control flow?

https://github.com/llvm/llvm-project/pull/146271