message: obdetect: fix in SSE code
diff: @@ -325,8 +325,14 @@ void HOGDescriptor::computeGradient(const Mat& img, Mat& grad, Mat& qangle,
  #if CV_SSE2
  __m128i ithree = _mm_set1_epi32(3);
  for ( ; x <= end - 4; x += 4)
  - _mm_storeu_si128((__m128i*)(xmap + x), _mm_mullo_epi16(ithree,
  - _mm_loadu_si128((const __m128i*)(xmap + x))));
  + {
  + //emulation of _mm_mullo_epi32
  + __m128i mul_res = _mm_loadu_si128((const __m128i*)(xmap + x));
  + __m128i tmp1 = _mm_mul_epu32(ithree, mul_res);
  + __m128i tmp2 = _mm_mul_epu32( _mm_srli_si128(ithree,4), _mm_srli_si128(mul_res,4));
  + mul_res = _mm_unpacklo_epi32(_mm_shuffle_epi32(tmp1, _MM_SHUFFLE (0,0,2,0)), _mm_shuffle_epi32(tmp2, _MM_SHUFFLE (0,0,2,0)));
  + _mm_storeu_si128((__m128i*)(xmap + x), mul_res);
  + }
  #elif CV_NEON
  int32x4_t ithree = vdupq_n_s32(3);
  for ( ; x <= end - 4; x += 4)
  