[PATCH] D84951: [LV] Try to sink users recursively for first-order recurrences.

[Florian Hahn via Phabricator via llvm-commits]

fhahn updated this revision to Diff 293552.
fhahn marked an inline comment as done.
fhahn added a comment.

Rebased, updated comment, added additional tests.

In D84951#2281155 <https://reviews.llvm.org/D84951#2281155>, @xbolva00 wrote:

> Does this patch improve some public benchmarks?

It does not really impact the number of vectorized loops in SPEC2000/SPEC2006/MultiSource. But I think it should have a strictly positive impact (module exposing some existing cost model limitations due to vectorizing more complex loops).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84951/new/

https://reviews.llvm.org/D84951

Files:
  llvm/include/llvm/Analysis/IVDescriptors.h
  llvm/lib/Analysis/IVDescriptors.cpp
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/first-order-recurrence-complex.ll
  llvm/test/Transforms/LoopVectorize/first-order-recurrence.ll

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