C C-po-loc

{
}

P0(int *x, int *y)
{
	int r0;
	int r1;

	r0 = READ_ONCE(*y);
	smp_rmb();
	r1 = READ_ONCE(*x);
	WRITE_ONCE(*x, 1);
}

P1(int *x, int *y)
{
	int r2;

	r2 = READ_ONCE(*x);
	WRITE_ONCE(*y, r2);
}

exists (0:r0=1)