[all-commits] [llvm/llvm-project] 6a091b: [VPlan] Remove VPInstruction::Not. NFC

[Luke Lau via All-commits]

  Branch: refs/heads/users/lukel97/loop-vectorize/remove-vpinstruction-not
  Home:   https://github.com/llvm/llvm-project
  Commit: 6a091b94d56b43bec90a552e9c1c37405c99d896
      https://github.com/llvm/llvm-project/commit/6a091b94d56b43bec90a552e9c1c37405c99d896
  Author: Luke Lau <luke at igalia.com>
  Date:   2026-09-09 (Wed, 09 Sep 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/lib/Transforms/Vectorize/VPlanConstruction.cpp
    M llvm/lib/Transforms/Vectorize/VPlanPatternMatch.h
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/lib/Transforms/Vectorize/VPlanUtils.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/arith-costs.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/cmp_cost.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/AArch64/sve-tail-folding-forced.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/AArch64/vplan-memory-op-decisions.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/AArch64/vplan-printing-alias-mask.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/AArch64/vplan-printing.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/execution-frequencies-match-bfi.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/predicator.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/vplan-predicate-switch.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/vplan-printing-flags.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/vplan-printing.ll
    M llvm/test/Transforms/LoopVectorize/X86/CostModel/vpinstruction-cost.ll
    M llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp
    M llvm/unittests/Transforms/Vectorize/VPlanVerifierTest.cpp

  Log Message:
  -----------
  [VPlan] Remove VPInstruction::Not. NFC

It can be represented by a canonical `xor x, -1`. The motiviation for this is to help streamline pattern matchers so we can start dispatching combineRecipes based on opcodes.



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