Michael Zolotukhin 6023ad2d37 LegalizeTypes: Handle shift by 0 in ExpandShiftByConstant.
Though such shifts are usually optimized away by combiner, we still can
encounter them after a vector shift is legalized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231443 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 01:13:01 +00:00
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