Intel IPP performance benchmark tool is located at ipp\tools\xxx\perfsys, and its usage could be found at: http://software.intel.com/en-use/articles/measure-intel-ipp-function-performance
As noted in the AVA optimization article, the functions listed there are the ones directly and manually optimized with AVX instructions. But there are other functions that are compiled with AVX optimized switch. So these functions may also take the benefit of AVX functions.
As to adding the AVX switch when you compile your source code, it will impact the performance of your code. But since IPP functions are binary, which is only linked into the code. These switches will be impact IPP functions performance.
IPP functions contain a dial-up of instructions SIMD. During initialization library IPP registers processor possibilities, defines supported version Streaming SIMD Extentions (SSE, AVX) and sends the most suitable version of the functions supported by the processor.
Rahul, since IPP is already compiled binary, the compiler will not compile the library. So IPP library performance is not expected to impact by the compiler switch.
But the compiler switch will impact your source performance.
In one of the article, compared Intel AVX vs. Intel SSE performance speedup. This might be useful for you.