[PATCH] D150599: [ARC] Use backwards scavenging in frame index elimination

[Jay Foad via Phabricator via llvm-commits]

foad planned changes to this revision.
foad added a comment.

Might need to use `scavengeRegisterBackwards` for correctness.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150599/new/

https://reviews.llvm.org/D150599