[llvm-branch-commits] [llvm] [KeyInstr][LoopRotate] Remap atoms of duplicated instructions (PR #133490)

[Jeremy Morse via llvm-branch-commits]

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

LGTM (although the hand-written tests are more fun and easier to read)

https://github.com/llvm/llvm-project/pull/133490