[all-commits] [llvm/llvm-project] fc9cd3: [VPlan] Don't add live-outs for IV phis.

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fc9cd3272b50f4ee9f18c4ab82c278bbb014d99f
      https://github.com/llvm/llvm-project/commit/fc9cd3272b50f4ee9f18c4ab82c278bbb014d99f
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2024-07-14 (Sun, 14 Jul 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-live-out-pointer-induction.ll
    M llvm/test/Transforms/LoopVectorize/X86/ephemeral-recipes.ll
    A llvm/test/Transforms/LoopVectorize/X86/iv-live-outs.ll
    M llvm/test/Transforms/LoopVectorize/iv_outside_user.ll
    M llvm/test/Transforms/LoopVectorize/no-fold-tail-by-masking-iv-external-uses.ll
    M llvm/test/Transforms/LoopVectorize/pr58811-scev-expansion.ll
    M llvm/test/Transforms/LoopVectorize/pr59319-loop-access-info-invalidation.ll

  Log Message:
  -----------
  [VPlan] Don't add live-outs for IV phis.

Resume and exit values for inductions are currently still created
outside of VPlan and independent of the induction recipes. Don't add
live-outs for now, as the additional unneeded users can pessimize other
anlysis.

Fixes https://github.com/llvm/llvm-project/issues/98660.



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