For something like SSE to work you'd need both wasm and wasm2c to support it. Wasm doesn't support all of SSE, but wasm does have SIMD support which is a porta

For something like SSE to work you'd need both wasm and wasm2c to support it. Wasm doesn't support all of SSE, but wasm does have SIMD support which is a portable subset of common SIMD instructions. You may lose some performance there, but wasm is adding more instructions to help (see "relaxed-simd"). There are also headers to help translate between SSE and wasm SIMD for existing code where possible. wasm2c does have support for wasm SIMD, although I believe it is not 100% complete yet.