[PATCH] D47269: [CodeGen] Use RegUnits to track register aliases in AArch64RedundantCopyElimination. (NFC)

[Jun Bum Lim via Phabricator via llvm-commits]

junbuml accepted this revision.
junbuml added a comment.

LGTM too.  DomBBUsedRegs and OptBBUsedRegs are not really used, but keeping both DefedRegs and UsedRegs seems clearer than creating extra functions in LiveRegUnits.


https://reviews.llvm.org/D47269