[all-commits] [llvm/llvm-project] df2128: [VPlan] Replace ExtractFromEnd with Extract(Last|P...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: df21288247c4683164b5aa532c29317cc4414a8b
      https://github.com/llvm/llvm-project/commit/df21288247c4683164b5aa532c29317cc4414a8b
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-04-25 (Fri, 25 Apr 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/lib/Transforms/Vectorize/VPlanAnalysis.cpp
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/lib/Transforms/Vectorize/VPlanUnroll.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/vplan-printing.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vplan-vp-intrinsics-reduction.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-chains-vplan.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
    M llvm/test/Transforms/LoopVectorize/interleave-and-scalarize-only.ll
    M llvm/test/Transforms/LoopVectorize/vplan-printing-reductions.ll
    M llvm/test/Transforms/LoopVectorize/vplan-printing.ll

  Log Message:
  -----------
  [VPlan] Replace ExtractFromEnd with Extract(Last|Penultimate)Element (NFC). (#137030)

ExtractFromEnd only has 2 uses, extracting the last and penultimate
elements. Replace it with 2 separate opcodes, removing the need to
materialize and handle a constant argument.

PR: https://github.com/llvm/llvm-project/pull/137030



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