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)