Merge "vpx_dsp/x86/avg_intrin_sse2: fix int sanitizer warnings"

diff --combined vpx_dsp/x86/avg_intrin_sse2.c
index 77c9e16,f469be1..3cba258
--- 1/vpx_dsp/x86/avg_intrin_sse2.c
--- 2/vpx_dsp/x86/avg_intrin_sse2.c
+++ b/vpx_dsp/x86/avg_intrin_sse2.c
@@@ -515,14 -515,14 +515,14 @@@ void vpx_int_pro_row_sse2(int16_t *hbuf
  
  int16_t vpx_int_pro_col_sse2(const uint8_t *ref, const int width) {
    __m128i zero = _mm_setzero_si128();
 -  __m128i src_line = _mm_load_si128((const __m128i *)ref);
 +  __m128i src_line = _mm_loadu_si128((const __m128i *)ref);
    __m128i s0 = _mm_sad_epu8(src_line, zero);
    __m128i s1;
    int i;
  
    for (i = 16; i < width; i += 16) {
      ref += 16;
 -    src_line = _mm_load_si128((const __m128i *)ref);
 +    src_line = _mm_loadu_si128((const __m128i *)ref);
      s1 = _mm_sad_epu8(src_line, zero);
      s0 = _mm_adds_epu16(s0, s1);
    }
@@@ -571,7 -571,7 +571,7 @@@ int vpx_vector_var_sse2(const int16_t *
    v1 = _mm_srli_epi64(sse, 32);
    sse = _mm_add_epi32(sse, v1);
  
-   mean = _mm_extract_epi16(sum, 0);
+   mean = (int16_t)_mm_extract_epi16(sum, 0);
  
    return _mm_cvtsi128_si32(sse) - ((mean * mean) >> (bwl + 2));
  }