LISA wrr+2w+fencermbonceonce+fencewmbonceonce+Once "RfeOnceOnce FenceRmbdRROnceOnce FreOnceOnce FenceWmbdWWOnceOnce WseOnceOnce" Cycle=RfeOnceOnce FenceRmbdRROnceOnce FreOnceOnce FenceWmbdWWOnceOnce WseOnceOnce Relax=FenceRmbdRR FenceWmbdWW Safe=RfeOnceOnce FreOnceOnce WseOnceOnce Prefetch=1:x=F,1:y=T,2:y=F,2:x=W Com=Rf Fr Ws Orig=RfeOnceOnce FenceRmbdRROnceOnce FreOnceOnce FenceWmbdWWOnceOnce WseOnceOnce { } P0 | P1 | P2 ; w[once] x 2 | r[once] r0 x | w[once] y 1 ; | f[rmb] | f[wmb] ; | r[once] r1 y | w[once] x 1 ; Observed x=2; 1:r1=0; 1:r0=2;