ICV2017u3 package update;

- Optimizations set change. Now IPP integrations will provide code for SSE42, AVX2 and AVX512 (SKX) CPUs only. For HW below SSE42 IPP code is disabled.
- Performance regressions fixes for IPP code paths;
- cv::boxFilter integration improvement;
- cv::filter2D integration improvement;

modules/core/src/matrix.cpp

@@ -4356,7 +4356,6 @@ template<typename T> static void sortIdx_( const Mat& src, Mat& dst, int flags )
 }
 
 #ifdef HAVE_IPP
-#if !IPP_DISABLE_SORT_IDX
 typedef IppStatus (CV_STDCALL *IppSortIndexFunc)(const void*  pSrc, Ipp32s srcStrideBytes, Ipp32s *pDstIndx, int len, Ipp8u *pBuffer);
 
 static IppSortIndexFunc getSortIndexFunc(int depth, bool sortDescending)
@@ -4435,7 +4434,6 @@ static bool ipp_sortIdx( const Mat& src, Mat& dst, int flags )
     return true;
 }
 #endif
-#endif
 
 typedef void (*SortFunc)(const Mat& src, Mat& dst, int flags);
 }
@@ -4472,9 +4470,8 @@ void cv::sortIdx( InputArray _src, OutputArray _dst, int flags )
         _dst.release();
     _dst.create( src.size(), CV_32S );
     dst = _dst.getMat();
-#if !IPP_DISABLE_SORT_IDX
+
     CV_IPP_RUN_FAST(ipp_sortIdx(src, dst, flags));
-#endif
 
     static SortFunc tab[] =
     {