PPC LB+isyncrp+lwsync "ISyncdRWRP Rfe LwSyncdRW RfePR" Cycle=Rfe LwSyncdRW RfePR ISyncdRWRP Prefetch= Com=Rf Rf Orig=ISyncdRWRP Rfe LwSyncdRW RfePR { 0:r2=x; 0:r4=y; 1:r2=y; 1:r4=x; } P0 | P1 ; lwarx r1,r0,r2 | lwz r1,0(r2) ; isync | lwsync ; li r3,1 | li r3,1 ; stw r3,0(r4) | stw r3,0(r4) ; exists (0:r1=1 /\ 1:r1=1)