[all-commits] [llvm/llvm-project] 9ea5be: Recommit "[LV][VPlan] Remove any-of reduction from...

Elvis Wang via All-commits all-commits at lists.llvm.org
Wed Nov 27 23:07:58 PST 2024


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9ea5be639d31560faec993b4aebb3e10c7d4c8e2
      https://github.com/llvm/llvm-project/commit/9ea5be639d31560faec993b4aebb3e10c7d4c8e2
  Author: Elvis Wang <elvis.wang at sifive.com>
  Date:   2024-11-28 (Thu, 28 Nov 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/select-costs.ll

  Log Message:
  -----------
  Recommit "[LV][VPlan] Remove any-of reduction from precomputeCost. NFC (#117109)" (#117289)

Update the test cases contains `any-of` printings from the
precomputeCost().

Origin message: 

The any-of reduction contains phi and select instructions.

The select instruction might be optimized and removed in the vplan which
may cause VF difference between legacy and VPlan-based model. But if the
select instruction be removed, planContainsAdditionalSimplifications()
will catch it and disable the assertion.

Therefore, we can just remove the ayn-of reduction calculation in the
precomputeCost().



Recommit "[LV][VPlan] Remove any-of reduction from precomputeCost. NFC
(#117109)"



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