simd-everywhere

simd-everywhere/simde

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

3.1K stars 321 forks 3.1K watchers C MIT License
altivec arm arm64 avx avx2 avx512 fma gfni mmx neon powerpc simd simd-intrinsics sse sse2 sse3 sse41 sse42 ssse3 vectorization
View on GitHub Website
4 Open Issues Need Help Last updated: Sep 7, 2026

Open Issues Need Help

View All on GitHub
AVX-512BW functions 16 days ago
help wanted instruction-set-support good first issue GSoC/Outreachy-ideas
simd-everywhere/simde
3.1K

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

C
#altivec#arm#arm64#avx#avx2#avx512#fma#gfni#mmx#neon#powerpc#simd#simd-intrinsics#sse#sse2#sse3#sse41#sse42#ssse3#vectorization
Missing comma in constants table in simde_math_erfcinvf 7 months ago
good first issue
simd-everywhere/simde
3.1K

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

C
#altivec#arm#arm64#avx#avx2#avx512#fma#gfni#mmx#neon#powerpc#simd#simd-intrinsics#sse#sse2#sse3#sse41#sse42#ssse3#vectorization
mm512_mask_dpbf16_ps fails on emulated Saphire Rapids 9 months ago
bug help wanted
simd-everywhere/simde
3.1K

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

C
#altivec#arm#arm64#avx#avx2#avx512#fma#gfni#mmx#neon#powerpc#simd#simd-intrinsics#sse#sse2#sse3#sse41#sse42#ssse3#vectorization
WASM SIMD implementations of SSE about 1 year ago
help wanted good first issue accelerated-implementation GSoC/Outreachy-ideas
simd-everywhere/simde
3.1K

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

C
#altivec#arm#arm64#avx#avx2#avx512#fma#gfni#mmx#neon#powerpc#simd#simd-intrinsics#sse#sse2#sse3#sse41#sse42#ssse3#vectorization