[all-commits] [llvm/llvm-project] 9b4ad2: [LV][EVL] Support fixed-order recurrence idiom wit...

[Mel Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9b4ad2fe508d8e008bdfcc3036541026f2ad4ebf
      https://github.com/llvm/llvm-project/commit/9b4ad2fe508d8e008bdfcc3036541026f2ad4ebf
  Author: Mel Chen <mel.chen at sifive.com>
  Date:   2025-03-03 (Mon, 03 Mar 2025)

  Changed paths:
    M llvm/lib/Analysis/VectorUtils.cpp
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.h
    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-fixed-order-recurrence.ll
    A llvm/test/Transforms/LoopVectorize/RISCV/vplan-vp-intrinsics-fixed-order-recurrence.ll

  Log Message:
  -----------
  [LV][EVL] Support fixed-order recurrence idiom with EVL tail folding. (#124093)

This patch converts the llvm.vector.splice intrinsic to
llvm.experimental.vp.splice, ensuring that fixed-order recurrences
execute correctly when tail folding by EVL is enable.
Due to the non-VFxUF penultimate EVL issue, the EVL from the previous
iteration will be preserved and used in llvm.experimental.vp.splice.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications