File: LB%2Bpoacquireonce%2Bpooncerelease.litmus

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C LB+poacquireonce+pooncerelease

(*
 * Result: Never
 *
 * Does a release-acquire pair suffice for the load-buffering litmus
 * test, where each process reads from one of two variables then writes
 * to the other?
 *)

{}

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

	r0 = READ_ONCE(*x);
	smp_store_release(y, 1);
}

P1(int *x, int *y)
{
	int r0;

	r0 = smp_load_acquire(y);
	WRITE_ONCE(*x, 1);
}

exists (0:r0=1 /\ 1:r0=1)