PPC WRR+2W+lwsyncrp+sync "RfePR LwSyncdRRRP Fre SyncdWW Wse" Cycle=RfePR LwSyncdRRRP Fre SyncdWW Wse Prefetch=0:x=F,1:y=T,2:x=W Com=Rf Fr Ws Orig=RfePR LwSyncdRRRP Fre SyncdWW Wse { 0:r2=x; 1:r2=x; 1:r4=y; 2:r2=y; 2:r4=x; } P0 | P1 | P2 ; li r1,2 | lwarx r1,r0,r2 | li r1,1 ; stw r1,0(r2) | lwsync | stw r1,0(r2) ; | lwz r3,0(r4) | sync ; | | li r3,1 ; | | stw r3,0(r4) ; exists (x=2 /\ 1:r1=2 /\ 1:r3=0)