[PATCH] D154157: [LV] Cost model for out-of-loop reductions

[Anna Thomas via Phabricator via llvm-commits]

anna updated this revision to Diff 552416.
anna added a comment.

Rewrote the patch to extend existing logic for runtime checks calculation. 
This now supports all kinds of out of loop reductions. Since we compute an upper-bound on `MinProfitableTripCount`, this maybe a more conservative estimate.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D154157/new/

https://reviews.llvm.org/D154157

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/X86/reduction-small-trip-count.ll

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