1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -mxop -ftree-vectorize -fschedule-insns" } */
       3  
       4  union {
       5    int i32[10240];
       6    long long i64[10240];
       7  } a, b, c;
       8  
       9  void imul32_to_64 (void)
      10  {
      11    int i;
      12  
      13    for (i = 0; i < 10240; i++)
      14      a.i64[i] = (long long) b.i32[i] * c.i32[i];
      15  }