Dorit Nuzman 927b31600e [LV] Ignore the cost of values that will not appear in the vectorized loop
VecValuesToIgnore holds values that will not appear in the vectorized loop.
We should therefore ignore their cost when VF > 1.

Differential Revision: https://reviews.llvm.org/D40883

llvm-svn: 320463
2017-12-12 08:57:43 +00:00
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