[PATCH] D128033: [LoopVectorize] Uninitialized phi node leads to a crash in SSAUpdater.

[Ayal Zaks via Phabricator via llvm-commits]

Ayal added inline comments.


================
Comment at: llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:3151
       Value *Step =
           CreateStepValue(II.getStep(), *PSE.getSE(), &*B.GetInsertPoint());
       EndValue = emitTransformedIndex(B, VTC, II.getStartValue(), Step, II);
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@fhahn - worth leaving behind a TODO to ensure CreateStepValue() is called "before modifying the CFG at all"?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D128033/new/

https://reviews.llvm.org/D128033