[all-commits] [llvm/llvm-project] 632c5d: [VPlan] Support VPReverseVectorPointer in DataWith...

[Shih-Po Hung via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 632c5d29919ce93dc5f33fd729a0b97adc7c831b
      https://github.com/llvm/llvm-project/commit/632c5d29919ce93dc5f33fd729a0b97adc7c831b
  Author: Shih-Po Hung <shihpo.hung at sifive.com>
  Date:   2024-11-22 (Fri, 22 Nov 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/lib/Transforms/Vectorize/VPlanVerifier.cpp
    M llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-reverse-load-store.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-uniform-store.ll

  Log Message:
  -----------
  [VPlan] Support VPReverseVectorPointer in DataWithEVL vectorization (#113667)

VPReverseVectorPointer relies on the runtime VF, but in DataWithEVL
tail-folding, EVL (which can be less than VF at runtime) should be used
instead.

This patch updates the logic to check the users of VF and replaces the
second operand if the user is VPReverseVectorPointer.



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