[all-commits] [llvm/llvm-project] a2231a: [VPlan] Share PreservesUniformity logic between is...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a2231af5ddafbc82c9d6ecc994690639958c6661
      https://github.com/llvm/llvm-project/commit/a2231af5ddafbc82c9d6ecc994690639958c6661
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-11-22 (Sat, 22 Nov 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanUtils.cpp

  Log Message:
  -----------
  [VPlan] Share PreservesUniformity logic between isSingleScalar and isUniformAcrossVFsAndUFs

Extract the PreservesUniformity logic from isSingleScalar into a shared
static helper function. Update isUniformAcrossVFsAndUFs to use this
logic for VPWidenRecipe and VPInstruction, so that any opcode that
preserves uniformity is considered uniform-across-vf-and-uf if its
operands are.

This unifies the uniformity checking logic and makes it easier to extend
in the future.

This should effectively by NFC currently.



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