1  /* { dg-do compile } */
       2  /* { dg-options "-mavx2 -O2" } */
       3  /* { dg-final { scan-assembler "vpmovsxbw\[ \\t\]+\[^\n\]*%ymm\[0-9\]" } } */
       4  
       5  #include <immintrin.h>
       6  
       7  __m128i x;
       8  __m256i res;
       9  
      10  void extern
      11  avx2_test (void)
      12  {
      13    res = _mm256_cvtepi8_epi16 (x);
      14  }