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/* { 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" } } */
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