[PATCH] D65267: [MachineCopyPropagation] Remove redundant copies after TailDup via machine-cp

[Jinsong Ji via Phabricator via llvm-commits]

jsji added a comment.

@lkail Can you please update the summary to describe more details about why we might have such redundant copies after `TailDup`. 
I know we have those in comments, it would be great if we can summarize those into summary, so that reviewers don't have to look into every single comments. Thanks.


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  https://reviews.llvm.org/D65267/new/

https://reviews.llvm.org/D65267