vectorclass/version2

Performance-portable, length-agnostic SIMD with runtime dispatch

C++ wrappers for SIMD intrinsics and parallelized, optimized mathematical functions (SSE, AVX, AVX512, NEON, SVE, WebAssembly, VSX, RISC-V))

Expressive Vector Engine - SIMD in C++ Goes Brrrr

Implementations of SIMD instruction sets for systems which don't natively support them.

C++ image processing and machine learning library with using of SIMD: SSE, AVX, AVX-512, AMX for x86/x64, NEON, SVE for ARM, HVX for Hexagon

A cross platform C99 library to get cpu features at runtime.

A translator from Intel SSE intrinsics to Arm/Aarch64 NEON implementation

DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps

Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON, RISC-V RVV)