LISA WRW+WR+poacquireonce+fencembonceonce+Once "RfeOnceAcquire PodRWAcquireOnce WseOnceOnce FenceMbdWROnceOnce FreOnceOnce" Cycle=PodRWAcquireOnce WseOnceOnce FenceMbdWROnceOnce FreOnceOnce RfeOnceAcquire Relax=RfeOnceAcquire Safe=PodRWAcquireOnce FreOnceOnce WseOnceOnce FenceMbdWROnceOnce Prefetch=1:x=F,1:y=W,2:y=F,2:x=T Com=Rf Ws Fr Orig=RfeOnceAcquire PodRWAcquireOnce WseOnceOnce FenceMbdWROnceOnce FreOnceOnce { } P0 | P1 | P2 ; w[once] x 1 | r[acquire] r0 x | w[once] y 2 ; | w[once] y 1 | f[mb] ; | | r[once] r0 x ; Observed y=2; 2:r0=0; 1:r0=1;