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  1. Revert "[NFC] [TargetRegisterInfo] add one use check to lookThruCopyLike." (details)
Commit a9b3303a8847e100ae23fa711f9b5b8963ebdaf9 by czhengsz
Revert "[NFC] [TargetRegisterInfo] add one use check to lookThruCopyLike."

This reverts commit 3bdf4507b66348ad78df4655a8e4f36c3fc10f3c.

Post commit comments need to be addressed first.
The file was modifiedllvm/lib/CodeGen/TargetRegisterInfo.cpp
The file was modifiedllvm/include/llvm/CodeGen/TargetRegisterInfo.h