1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  
       4  unsigned char foo (unsigned char c)
       5  {
       6    return (c >= '0') && (c <= '9');
       7  }
       8  
       9  /* { dg-final { scan-assembler-not "uxtb" } } */