PPC IRWIW+eieio+lwsync "Rfe EieiodRW Wse Rfe LwSyncdRW Wse" Cycle=Rfe LwSyncdRW Wse Rfe EieiodRW Wse Prefetch=0:x=F,1:y=W,2:y=F,3:x=W Com=Rf Ws Rf Ws Orig=Rfe EieiodRW Wse Rfe LwSyncdRW Wse { 0:r2=x; 1:r2=x; 1:r4=y; 2:r2=y; 3:r2=y; 3:r4=x; } P0 | P1 | P2 | P3 ; li r1,2 | lwz r1,0(r2) | li r1,2 | lwz r1,0(r2) ; stw r1,0(r2) | eieio | stw r1,0(r2) | lwsync ; | li r3,1 | | li r3,1 ; | stw r3,0(r4) | | stw r3,0(r4) ; Observed 1:r1=1; 3:r1=1; x=1; y=1; and 1:r1=1; 3:r1=1; x=2; y=1; and 1:r1=2; 3:r1=1; x=2; y=1; and 1:r1=1; 3:r1=1; x=1; y=2; and 1:r1=1; 3:r1=2; x=1; y=2; and 1:r1=1; 3:r1=1; x=2; y=2; and 1:r1=2; 3:r1=1; x=2; y=2; and 1:r1=1; 3:r1=2; x=2; y=2; and 1:r1=2; 3:r1=2; x=2; y=2;