1  /* Verify that strcmp doesn't make assumptions about the size of a weak
       2     symbol.
       3     { dg-do compile }
       4     { dg-options "-O2 -Wall" } */
       5  
       6  /* An ordinary definition of A with more elements might be provided
       7     in another translation unit.  Even though that would be undefined
       8     (the type of the actual definition must be the same as the type
       9     of the weak declaration) this test verifies that GCC doesn't rely
      10     on the size of this A for optimization (as a matter of QoI).  */
      11  __attribute__ ((weak)) char a[3];
      12  
      13  int cmp_a3_x (void)
      14  {
      15    return __builtin_strcmp (a, "1234567") == 0;
      16  }