PPC MP+lwsync+isyncrp "LwSyncdWW RfePR ISyncdRRRP Fre" Cycle=RfePR ISyncdRRRP Fre LwSyncdWW Prefetch=1:x=T Com=Rf Fr Orig=LwSyncdWW RfePR ISyncdRRRP Fre { 0:r2=x; 0:r4=y; 1:r2=y; 1:r4=x; } P0 | P1 ; li r1,1 | lwarx r1,r0,r2 ; stw r1,0(r2) | isync ; lwsync | lwz r3,0(r4) ; li r3,1 | ; stw r3,0(r4) | ; exists (1:r1=1 /\ 1:r3=0)