1 /* { dg-do compile } */
2 /* { dg-options "-O2" }  */
3 
4 extern void overflow_handler ();
5 
overflow_add(unsigned long x,unsigned long y)6 unsigned long overflow_add (unsigned long x, unsigned long y)
7 {
8   unsigned long r;
9 
10   int ovr = __builtin_uaddl_overflow (x, y, &r);
11   if (ovr)
12     overflow_handler ();
13 
14   return r;
15 }
16 
17 /* { dg-final { scan-assembler "adds" } } */
18