[PATCH] D87939: [PeepholeOptimizer] Enhance the redundant COPY elimination.

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

> The comment seems outdated, if my understanding is right, and even the original code cannot perform that change since, once the 2nd COPY with same source is found in L1407, the check @ L1419 just skips that earlier as the 1st COPY has no subreg and the 2nd COPY has sub1.

Good point!

Now, I am wondering why is this change not just NFC then?


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  https://reviews.llvm.org/D87939/new/

https://reviews.llvm.org/D87939