To take advantage of this file just include it in your project that uses ARM NEON intinsics instead of "arm_neon.h", compile it as usual and enjoy the result.
For significant performance improvement in some cases you might need to define USE_SSE4 in your project settings. Otherwise SIMD up to SSSE3 to be used.
If NEON2SSE_DISABLE_PERFORMANCE_WARNING macro is defined, then the performance warnings are disabled.
For more information and license please read the NEON_2_SSE.h content.