[all-commits] [llvm/llvm-project] 6a8d5f: [VPlan] Don't access canonical IV in VPWidenPointe...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6a8d5f22ffc5113de9868e2b4227d699b14d0421
      https://github.com/llvm/llvm-project/commit/6a8d5f22ffc5113de9868e2b4227d699b14d0421
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-03-15 (Sat, 15 Mar 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    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/ARM/pointer_iv.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/illegal-type.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/strided-accesses.ll
    M llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll
    M llvm/test/Transforms/LoopVectorize/X86/optsize.ll
    M llvm/test/Transforms/LoopVectorize/X86/pr48340.ll
    M llvm/test/Transforms/LoopVectorize/consecutive-ptr-uniforms.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-chains.ll
    M llvm/test/Transforms/LoopVectorize/opaque-ptr.ll
    M llvm/test/Transforms/LoopVectorize/pointer-induction.ll
    M llvm/test/Transforms/LoopVectorize/preserve-dbg-loc-and-loop-metadata.ll
    M llvm/test/Transforms/LoopVectorize/scev-predicate-reasoning.ll

  Log Message:
  -----------
  [VPlan] Don't access canonical IV in VPWidenPointerInduction::execute.

This updates VPWidenPointerInductionRecipe::execute to not use the
canonical IV to determine the insert point. Instead, it relies on the
current recipe position. In cases where this is not sufficient, set the
insert point to the first non-phi instruction, to ensure phis are
created together.



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