Add SVE2 optimizations for SynetInnerProduct32fProd - #820
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Port Neon/AVX-style reordered-weight InnerProductKxKNr kernels to SVE2 (1x1/1x4/1x8 tiles with scalable F=svcntw()), enable Prod in Init when Preferable, and note the change under release 7.2.165. Co-authored-by: Ihar Yermalayeu <ermig1979@gmail.com>
ermig1979
marked this pull request as ready for review
August 5, 2026 09:32
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Summary
Adds SVE/SVE2 optimizations for
Base::SynetInnerProduct32fProdon ARM/ARM64, following the existing Neon and AVX2/AVX-512BW reordered-weight product kernels. Builds on the SVE2SynetInnerProduct32fGemmwork already ondev.Changes
src/Simd/SimdSve2SynetInnerProduct32f.cpp—Sve2::SynetInnerProduct32fProdwithInnerProductKxKNrmicrokernels (1x1/1x4/1x8) usingsvcntw(),svld1_f32/svmla_f32_x/svst1_f32, and predicated tail stores;SynetInnerProduct32fInitselects Prod whenPreferable.SimdSynetInnerProduct32f.h— declareSve2::SynetInnerProduct32fProd.docs/2026.html— note under release 7.2.165.VS2022 project entries, Autotest registration, and
SimdLib.cppSVE2 dispatch for this API were already added with the Gemm SVE2 work.Validation
./Test "-r=.." -fi=SynetInnerProduct32f -tt=1 -ts=1finished successfully (Base/Sse41/Avx2/Avx512bw paths).-DSIMD_SVE2=ON,aarch64-linux-gnu-g++):libSimd.sobuilt successfully, includingSimdSve2SynetInnerProduct32f.cpp.