[all-commits] [llvm/llvm-project] 710dab: [VPlan] Remove VPPredInstPHIRecipes without users ...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 710dab6e18ad9ed22c2529b9125d7b8813165ede
      https://github.com/llvm/llvm-project/commit/710dab6e18ad9ed22c2529b9125d7b8813165ede
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2024-07-20 (Sat, 20 Jul 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/pr73894.ll
    M llvm/test/Transforms/LoopVectorize/PowerPC/vplan-force-tail-with-evl.ll
    M llvm/test/Transforms/LoopVectorize/X86/divs-with-tail-folding.ll
    M llvm/test/Transforms/LoopVectorize/X86/x86-predication.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
    M llvm/test/Transforms/LoopVectorize/if-pred-non-void.ll
    M llvm/test/Transforms/LoopVectorize/interleave-and-scalarize-only.ll
    M llvm/test/Transforms/LoopVectorize/pr45679-fold-tail-by-masking.ll
    M llvm/test/Transforms/LoopVectorize/select-cmp-multiuse.ll
    M llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge.ll

  Log Message:
  -----------
  [VPlan] Remove VPPredInstPHIRecipes without users after region merging.

After merging replicate regions, VPPredInstPHIRecipes may become unused.
Remove them directly instead of moving them to the merged region.



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