1  /* { dg-do compile } */
       2  /* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=4" } */
       3  
       4  /* Source: Ian Lance Taylor.  */
       5  
       6  int
       7  foo (int j)
       8  {
       9    int i;
      10    int sum = 0;
      11  
      12    for (i = 1; i < j; i += i)
      13      sum += __builtin_abs (i); /* { dg-warning "assuming signed overflow does not occur" "" { xfail *-*-* } } */
      14    return sum;
      15  }