[PATCH] D20315: [LV] For some induction variables, use vector phis instead of widening the scalar in the loop body

[Michael Kuperstein via llvm-commits]

mkuper updated this revision to Diff 59148.
mkuper added a comment.

Updated with Elena's comments.


http://reviews.llvm.org/D20315

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/PowerPC/vsx-tsvc-s173.ll
  test/Transforms/LoopVectorize/X86/gather_scatter.ll
  test/Transforms/LoopVectorize/cast-induction.ll
  test/Transforms/LoopVectorize/gcc-examples.ll
  test/Transforms/LoopVectorize/gep_with_bitcast.ll
  test/Transforms/LoopVectorize/global_alias.ll
  test/Transforms/LoopVectorize/induction.ll
  test/Transforms/LoopVectorize/induction_plus.ll

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