[all-commits] [llvm/llvm-project] 783a84: [VPlan] Add VF as operand to VPScalarIVStepsRecipe.

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 783a846507683c7b515473b833c9cf02cd2b1993
      https://github.com/llvm/llvm-project/commit/783a846507683c7b515473b833c9cf02cd2b1993
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-03-28 (Fri, 28 Mar 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-gather-scatter.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-forced.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-widen-gep.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-widen-phi.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve2-histcnt-vplan.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/synthesize-mask-for-call.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/vplan-printing.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/widen-call-with-intrinsic-or-libfunc.ll
    M llvm/test/Transforms/LoopVectorize/PowerPC/vplan-force-tail-with-evl.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-interleave.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vplan-vp-call-intrinsics.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vplan-vp-cast-intrinsics.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vplan-vp-intrinsics-reduction.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/vplan-vp-intrinsics.ll
    M llvm/test/Transforms/LoopVectorize/X86/vplan-vp-intrinsics.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-chains-vplan.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
    M llvm/test/Transforms/LoopVectorize/interleave-and-scalarize-only.ll
    M llvm/test/Transforms/LoopVectorize/uncountable-early-exit-vplan.ll
    M llvm/test/Transforms/LoopVectorize/vplan-dot-printing.ll
    M llvm/test/Transforms/LoopVectorize/vplan-predicate-switch.ll
    M llvm/test/Transforms/LoopVectorize/vplan-printing-before-execute.ll
    M llvm/test/Transforms/LoopVectorize/vplan-printing-reductions.ll
    M llvm/test/Transforms/LoopVectorize/vplan-printing.ll
    M llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge-vf1.ll
    M llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge.ll
    M llvm/test/Transforms/LoopVectorize/vplan-widen-struct-return.ll
    M llvm/unittests/Transforms/Vectorize/VPlanTest.cpp

  Log Message:
  -----------
  [VPlan] Add VF as operand to VPScalarIVStepsRecipe.

Similarly to other recipes, update VPScalarIVStepsRecipe to also take
the runtime VF as argument. This removes some unnecessary runtime VF
computations for scalable vectors. It will also allow dropping the
UF == 1 restriction for narrowing interleave groups required in
577631f0a528.



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