[all-commits] [llvm/llvm-project] 78af05: [VPlan] Run CSE closer to VPlan::execute. (#160572)

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 78af0561376ff2eb01bd0ed7ef3055e5a9954746
      https://github.com/llvm/llvm-project/commit/78af0561376ff2eb01bd0ed7ef3055e5a9954746
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-09-26 (Fri, 26 Sep 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/masked-call-scalarize.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/masked-call.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/transform-narrow-interleave-to-widen-memory-scalable.ll
    M llvm/test/Transforms/LoopVectorize/ARM/mve-reductions.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/blocks-with-dead-instructions.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/dead-ops-cost.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/evl-compatible-loops.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/gather-scatter-cost.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/induction-costs.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/mask-index-type.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/masked_gather_scatter.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/pr87378-vpinstruction-or-drop-poison-generating-flags.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/reg-usage-prune-vf.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/strided-accesses.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-cast-intrinsics.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-fixed-order-recurrence.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-interleave.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll
    M llvm/test/Transforms/LoopVectorize/X86/replicate-uniform-call.ll
    M llvm/test/Transforms/LoopVectorize/reduction-inloop.ll

  Log Message:
  -----------
  [VPlan] Run CSE closer to VPlan::execute. (#160572)

Additional CSE opportunities are exposed after converting to concrete
recipes/dissolving regions and materializing various expressions. Run
CSE later, to capitalize on some of the late opportunities.

PR: https://github.com/llvm/llvm-project/pull/160572



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