[all-commits] [llvm/llvm-project] 778d3c: [NFC] Partial reduce test to demonstrate regressio...

[Sushant Gokhale via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 778d3c8cccbc6ab72cea7f8fb4fd680b8f679e86
      https://github.com/llvm/llvm-project/commit/778d3c8cccbc6ab72cea7f8fb4fd680b8f679e86
  Author: Sushant Gokhale <sgokhale at nvidia.com>
  Date:   2025-10-14 (Tue, 14 Oct 2025)

  Changed paths:
    M llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce.ll

  Log Message:
  -----------
  [NFC] Partial reduce test to demonstrate regression post commit #cc9c64d (#162681)

We have seen performance regression for several instances of the Numba
benchmark, with some ranging around 70%, on Neoverse-v2 post #158641.
The mentioned case is short reproducer of the same. See
https://godbolt.org/z/j9Mj5WM7c for the IR differences.. A future patch
will address this.



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