Sanjay Patel 15d1501aae [SelectionDAG] try harder to convert funnel shift to rotate ...

Similar to rL337966 - if the DAGCombiner's rotate matching was 
working as expected, I don't think we'd see any test diffs here.

AArch only goes right, and PPC only goes left. 
x86 has both, so no diffs there.

Differential Revision: https://reviews.llvm.org/D50091

llvm-svn: 339359

2018-08-09 17:26:22 +00:00

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