| /* { dg-do compile } */ | |
| /* { dg-options "-O2" } */ | |
| extern void overflow_handler (); | |
| unsigned long overflow_sub (unsigned long x, unsigned long y) | |
| { | |
| unsigned long r; | |
| int ovr = __builtin_usubl_overflow (x, y, &r); | |
| if (ovr) | |
| overflow_handler (); | |
| return r; | |
| } | |
| /* { dg-final { scan-assembler "subs" } } */ |