[llvm] [AVR] Implement selection of 'ISD::RETURNADDR' and 'ISD::FRAMEADDR' (PR #222909)

[Patryk Wychowaniec via llvm-commits]

Patryk27 wrote:

Very nice! I see that pipeline failed on some spurious network error:

> requests.exceptions.ReadTimeout: HTTPConnectionPool(host='premerge-advisor.premerge-advisor.svc.cluster.local', port=5000): Read timed out. (read timeout=5)

Let me restart the pipeline and, if it passes, I'll merge the code. 

https://github.com/llvm/llvm-project/pull/222909