1  /* PR debug/46771 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O -ftree-vectorize -fcompare-debug" } */
       4  
       5  unsigned char v[1600];
       6  
       7  unsigned char
       8  foo (unsigned char x)
       9  {
      10    int i;
      11    unsigned char a = x;
      12    unsigned char b = x;
      13    for (i = 0; i < 1600; i++)
      14      a = a < v[i] ? v[i] : a;
      15    for (i = 0; i < 1600; i++)
      16      b = b > v[i] ? v[i] : b;
      17    return a - b;
      18  }