PPC WRW+2W+lwsync+eieio "Rfe LwSyncdRW Wse EieiodWW Wse" Cycle=Rfe LwSyncdRW Wse EieiodWW Wse { 0:r2=x; 1:r2=x; 1:r4=y; 2:r2=y; 2:r4=x; } P0 | P1 | P2 ; li r1,2 | lwz r1,0(r2) | li r1,2 ; stw r1,0(r2) | lwsync | stw r1,0(r2) ; | li r3,1 | eieio ; | stw r3,0(r4) | li r3,1 ; | | stw r3,0(r4) ; exists (x=2 /\ y=2 /\ 1:r1=2)