[PATCH] D52374: [MachineCopyPropagation] Reimplement CopyTracker in terms of register units

[Matthias Braun via Phabricator via llvm-commits]

MatzeB accepted this revision.
MatzeB added a comment.
This revision is now accepted and ready to land.

I'm convinced now the clobbering works correctly because as clobberRegister does not just clobber the register at hand but the whole destination register of the copy touched by the COPY at hand.
LGTM (this time with the right review :)


https://reviews.llvm.org/D52374