Preformance between Intel Assembly vs Intel Intrinsics

Preformance between Intel Assembly vs Intel Intrinsics

Deal All,

Am trying to optimize my codec application on Intel Platform. before kick start Is the any numbers for the performance comparison numbers between Intel Assembly vs Intel Intrinsics? Am in delima to choose between the two approaches.

4 posts / 0 new
Last post
For more complete information about compiler optimizations, see our Optimization Notice.

If the specific intrinsic is directly compiled into single machine code instruction you will probably not see any difference in the performance when comparing  inline assembly vs. compiler intrinsic.

The compiler has more latitude to optimize intrinsics.  For example, Intel C++ will choose more effective equivalent instructions, or switch from SSE to AVX-128, when permitted according to the architecture flag.

Bear in mind that inline assembly code will not be optimized by the compiler at least this is the case with VS C++ compiler.

Leave a Comment

Please sign in to add a comment. Not a member? Join today