Matthew Simpson ba5cf9dfee [LV] Move interleaved access helper functions to VectorUtils (NFC) ...

This patch moves some helper functions related to interleaved access
vectorization out of LoopVectorize.cpp and into VectorUtils.cpp. We would like
to use these functions in a follow-on patch that improves interleaved load and
store lowering in (ARM/AArch64)ISelLowering.cpp. One of the functions was
already duplicated there and has been removed.

Differential Revision: https://reviews.llvm.org/D29398

llvm-svn: 293788

2017-02-01 17:45:46 +00:00

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