[PATCH] D91393: WIP: Test case that exposes an SLP vectorization missed opportunity

[Ryan Santhirarajan via Phabricator via llvm-commits]

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I have tried to produce a reduced testcase that shows the operand reordering issue, and was only able to reduce it to a 8-wide vectorization. In the added test when the following IR change is made, vectorization successfully occurs. The question is can SLP be made to recognize this and proceed on its own.


https://reviews.llvm.org/D91393

Files:
  llvm/test/Transforms/SLPVectorizer/AArch64/slp-reassociate-issue.ll

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