
PPC S+PPO918
"Wse LwSyncdWW Rfe DpAddrdR PosRR PosRW"
Cycle=Rfe DpAddrdR PosRR PosRW Wse LwSyncdWW
Relax=
Safe=Rfe Wse PosRW PosRR LwSyncdWW DpAddrdR
Prefetch=0:x=F,1:x=W
Orig=Wse LwSyncdWW Rfe DpAddrdR PosRR PosRW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=x;
}
P0 | P1 ;
li r1,2 | lwz r1,0(r2) ;
stw r1,0(r2) | xor r3,r1,r1 ;
lwsync | lwzx r4,r3,r5 ;
li r3,1 | lwz r6,0(r5) ;
stw r3,0(r4) | li r7,1 ;
| stw r7,0(r5) ;
exists
(x=2 /\ 1:r1=1)