[llvm] [llvm] Validate Parent object before dereference (PR #157460)

[James Henderson via llvm-commits]

https://github.com/jh7370 approved this pull request.

Sorry, I misread the change.

I looked back at history and think this was just a copy/paste error during a refactor.

Looks good, once my inline comment has been addressed.

https://github.com/llvm/llvm-project/pull/157460