[PATCH] D96021: [LoopVectorize] NFC: Move UserVF feasibility checks to separate function.

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen created this revision.
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This patch is NFC and cleans up `computeFeasibleMaxVF()` by moving all
validity checking (and possibly clamping) of UserVF to a separate function
`computeFeasibleUserVF()`.

This patch is a preparatory patch with the ultimate goal of making
`computeMaxVF()` return both a max fixed VF and a max scalable VF,
so that `selectVectorizationFactor()` can pick the most cost-effective
vectorization factor.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D96021

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

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