[PATCH] D22869: [LV] Generate both scalar and vector integer induction variables

[Matthew Simpson via llvm-commits]

mssimpso updated this revision to Diff 66167.
mssimpso added a comment.

Addressed Adam's comments.

- Rebased.
- Used any_of in needsScalarInduction. I also simplified this a bit by removing the explicit check for the IV itself. At the very least, if the IV is scalar, it's update instruction will also be scalar.


https://reviews.llvm.org/D22869

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/X86/scatter_crash.ll
  test/Transforms/LoopVectorize/induction.ll

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