Highway is a C++ library for SIMD (Single Instruction, Multiple Data), i.e. applying the same operation to 'lanes'. ## Why Highway? - more portable (same source code) than platform-specific intrinsics, - works on a wider range of compilers than compiler-specific vector extensions, - more dependable than autovectorization, - easier to write/maintain than assembly language, - supports runtime dispatch, - supports variable-length vector architectures. ## Current status Supported targets: scalar, SSE4, AVX2, AVX-512, NEON (ARMv7 and v8), WASM SIMD. Ports to RVV and SVE/SVE2 are in progress.