[PATCH] D159202: [VPlan] Simplify redundant trunc (zext A) pairs to A.

[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.
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fhahn requested review of this revision.
Herald added subscribers: wangpc, vkmr.
Herald added a project: LLVM.

Add simplification for redundant trunc(zext A) pairs. Generally apply a
transform from D149903 <https://reviews.llvm.org/D149903>.

Depends on D159200 <https://reviews.llvm.org/D159200>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159202

Files:
  llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
  llvm/test/Transforms/LoopVectorize/if-pred-stores.ll
  llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge-vf1.ll

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