Mark Searles 7139dea6d9 RenameIndependentSubregs: Fix handling of undef tied operands ...

Ensure that, if updating a tied operand pair, to only update
that pair.

Differential Revision: https://reviews.llvm.org/D49052

llvm-svn: 336593

2018-07-09 20:07:03 +00:00

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