1 /* { dg-do compile } */ 2 /* { dg-options "-O2" } */ 3 4 extern void overflow_handler (); 5 overflow_add(unsigned long x,unsigned long y)6unsigned 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