Sanjay Patel d023dd60e9 [InstCombine] canonicalize another raw IR rotate pattern to funnel shift ...

This is matching the equivalent of the DAG expansion, 
so it should never end up with worse perf than the 
original code even if the target doesn't have a rotate
instruction.

llvm-svn: 350672

2019-01-08 22:39:55 +00:00

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