[PATCH] D134218: [VPlan] Sink non-uniform recieps for scalar plans.

Florian Hahn via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Sep 19 13:04:35 PDT 2022


fhahn created this revision.
fhahn added reviewers: Ayal, gilr, rengolin.
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In scalar plans, replicate recipes will only generate a single value per
UF, independent of whether they are uniform or not. So don't consider
uniformity for plans with scalar VFs only.

This allows us to handle a few additional cases in VPlan sinking instead
of non-VPlan sinkScalarOperands.

Depends on D133762 <https://reviews.llvm.org/D133762>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D134218

Files:
  llvm/lib/Transforms/Vectorize/VPlan.h
  llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
  llvm/test/Transforms/LoopVectorize/first-order-recurrence.ll
  llvm/test/Transforms/LoopVectorize/interleave-and-scalarize-only.ll
  llvm/test/Transforms/LoopVectorize/pr45679-fold-tail-by-masking.ll
  llvm/test/Transforms/LoopVectorize/tail-folding-vectorization-factor-1.ll
  llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge-vf1.ll

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