[PATCH] D142589: [LV] Perform recurrence sinking directly on VPlan. (WIP)

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: Ayal, gilr, rengolin.
Herald added subscribers: StephenFan, tschuett, psnobl, rogfer01, bollu, hiraditya.
Herald added a project: All.
fhahn requested review of this revision.
Herald added subscribers: pcwang-thead, vkmr.
Herald added a project: LLVM.

This patch updates LV to sink recipes directly using the VPlan use
chains. The initial patch only moves sinking to be purely VPlan-based.
Follow-up patches will move legality checks to VPlan as well.

At the moment, there's a single test failure remaining.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142589

Files:
  llvm/include/llvm/Transforms/Vectorize/LoopVectorizationLegality.h
  llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h
  llvm/test/Transforms/LoopVectorize/first-order-recurrence-complex.ll

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