[PATCH] D121624: [VPlan] Model pre-header explicitly (WIP).

[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 a subscriber: vkmr.
Herald added a project: LLVM.

NOTE: This patch is still work in progress, multiple tests need updating
and the VPlan-native path codegen needs to be updated.

Depends on D121623 <https://reviews.llvm.org/D121623>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121624

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h

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