[qemu.git] / tests / cris / check_gcctorture_pr28634-1.c

/* PR rtl-optimization/28634.  On targets with delayed branches,
   dbr_schedule could do the next iteration's addition in the
   branch delay slot, then subtract the value again if the branch
   wasn't taken.  This can lead to rounding errors.  */
int x = -1;
int y = 1;
int
main (void)
{
  while (y > 0)
    y += x;
  if (y != x + 1)
    abort ();
  exit (0);
}
Commit	Line	Data
dd43edf4 TS	1	/* PR rtl-optimization/28634. On targets with delayed branches,
	2	dbr_schedule could do the next iteration's addition in the
	3	branch delay slot, then subtract the value again if the branch
	4	wasn't taken. This can lead to rounding errors. */
	5	int x = -1;
	6	int y = 1;
	7	int
	8	main (void)
	9	{
	10	while (y > 0)
	11	y += x;
	12	if (y != x + 1)
	13	abort ();
	14	exit (0);
	15	}