SSE/neon support for Apple Silicon

Question

I'm trying to get my app ready for Apple Silicon. My app currently uses SSE instructions for Mac and equivalent Neon implementation for iOS.

Apple porting guide suggests moving to the Accelerate framework, which I'm not ready to do right now.

Is there a way to keep using SSE/neon (based on the architecture) in the universal binary for Apple silicon? I can see that arm64_neon.h is not available for Apple Silicon.

Answer 1

NEON intrinsics are available via the arm_neon.h header, and are standard ARM C Language Extensions intrinsics. arm64_neon.h is a MSVC specific header name (and since a few versions of MSVC, you can use the standard header name arm_neon.h for both 32 and 64 bit ARM even there, like other compilers).