[llvm-branch-commits] [llvm] release/18.x: [ARM] Switch to LiveRegUnits to fix r7 register allocation bug (PR #84475)

[Eli Friedman via llvm-branch-commits]

https://github.com/efriedma-quic requested changes to this pull request.

This is, as far as I can tell, not a miscompile; probably not worth taking on the 18.x branch.

(Also, it's usually not a good idea to open a PR for a cherry-pick before the original patch is merged.)

https://github.com/llvm/llvm-project/pull/84475