[PATCH] D20474: when calculating RegUsages, ignore instructions which are uniformed after vectorization

[Wei Mi via llvm-commits]

wmi updated this revision to Diff 64343.
wmi added a comment.

Addressed Michael's comments.


Repository:
  rL LLVM

https://reviews.llvm.org/D20474

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/PowerPC/vsx-tsvc-s173.ll
  test/Transforms/LoopVectorize/X86/reg-usage.ll
  test/Transforms/LoopVectorize/reverse_induction.ll

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