[all-commits] [llvm/llvm-project] 71be13: [VPlan] Rewrite VPExpandSCEVExprs in replaceSymbol...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 71be13a6f09d59cf45863d36a3dcc5d72645e2d6
      https://github.com/llvm/llvm-project/commit/71be13a6f09d59cf45863d36a3dcc5d72645e2d6
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-09-28 (Sun, 28 Sep 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/reuse-lcssa-phi-scev-expansion.ll
    M llvm/test/Transforms/LoopVectorize/version-stride-with-integer-casts.ll
    M llvm/test/Transforms/PhaseOrdering/AArch64/indvars-vectorization.ll

  Log Message:
  -----------
  [VPlan] Rewrite VPExpandSCEVExprs in replaceSymbolicStrides.

Extend replaceSymbolicStrides to also replace SCEVUnknowns in
VPExpandSCEVExprs using the information from StridesMaps.

This results in simpler SCEV expansions in some cases.



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