[PATCH] D140512: [VPlan] Add vp_depth_first_nonrecursive + graph traits for wrapper(NFC)

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: Ayal, gilr, rengolin.
Herald added subscribers: 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 adds a new VPBlockNonRecursiveTraversalWrapper struct to
provide graph traits specialization that do not traverse through
VPRegionBlocks. This matches the behavior of the existing traits for
plain VPBlockBase and is a step before moving the graph traits for
VPBlockBase to traverse through VPRegionBlocks to enable cross region
support in VPDominatorTree.

Depends on D140511 <https://reviews.llvm.org/D140511>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140512

Files:
  llvm/lib/Transforms/Vectorize/VPlan.cpp
  llvm/lib/Transforms/Vectorize/VPlanCFG.h
  llvm/lib/Transforms/Vectorize/VPlanVerifier.cpp

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