[PATCH] D133758: [VPlan] Add VPTransformedIVRecipe, use for VPScalarIVStepsRecipe.

[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 splits off the logic to transform the canonical IV to a
a value for an induction with a different start and step. This
transformation only needs to be done once (independent of VF/UF) and
enables sinking of VPScalarIVStepsRecipe as follow-up.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133758

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h
  llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
  llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
  llvm/lib/Transforms/Vectorize/VPlanValue.h
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-forced.ll
  llvm/test/Transforms/LoopVectorize/AArch64/widen-call-with-intrinsic-or-libfunc.ll
  llvm/test/Transforms/LoopVectorize/first-order-recurrence-chains-vplan.ll
  llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
  llvm/test/Transforms/LoopVectorize/icmp-uniforms.ll
  llvm/test/Transforms/LoopVectorize/interleave-and-scalarize-only.ll
  llvm/test/Transforms/LoopVectorize/vplan-dot-printing.ll
  llvm/test/Transforms/LoopVectorize/vplan-printing.ll
  llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge-vf1.ll
  llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge.ll

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