src[5] = _mm256_loadu_si256((const __m256i *)(src_diff += src_stride));
src[6] = _mm256_loadu_si256((const __m256i *)(src_diff += src_stride));
src[7] = _mm256_loadu_si256((const __m256i *)(src_diff += src_stride));
+ (void)src_diff;
hadamard_col8x2_avx2(src, 0);
hadamard_col8x2_avx2(src, 1);
src[5] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
src[6] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
src[7] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
+ (void)src_diff;
hadamard_col8_sse2(src, 0);
hadamard_col8_sse2(src, 1);