Files
Jeff Schwartz 55a7d80527 adding SIMD/TensorPrimitives to dotent-diag/analyzing-dotnet-performance (#330)
* incorporated feedback from previous pr, iterated with 100+ scalar loop tests to come to this skill, moved from skill to reference in the performance skill

* Update tests/dotnet-diag/analyzing-dotnet-performance/eval.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update tests/dotnet-diag/analyzing-dotnet-performance/eval.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update plugins/dotnet-diag/skills/analyzing-dotnet-performance/references/simd-vectorization.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update plugins/dotnet-diag/skills/analyzing-dotnet-performance/references/simd-vectorization.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update plugins/dotnet-diag/skills/analyzing-dotnet-performance/references/simd-vectorization.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update plugins/dotnet-diag/skills/analyzing-dotnet-performance/references/simd-vectorization.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Address review feedback on SIMD vectorization reference

- Check Span<T>/MemoryExtensions before TensorPrimitives (no extra dependency)
- Add all supported types (sbyte, ushort, uint, ulong, nint, nuint, char via ushort)
- TensorPrimitives: add constraint and applicable types columns (not just float/double)
- Add FusedMultiplyAdd, clarify AddMultiply vs MultiplyAdd distinction
- Prefer portable APIs over platform-specific intrinsics (allow when perf justifies)
- Fix dispatch pattern to use if/else if to avoid pessimizing small inputs
- Remove LINQ references

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* addressing more feedback

* move to the experimental plugin

* move the simd tests to exprimental

* add codeowners

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-03-25 10:51:28 -06:00
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