Test RWC+lwsyncpr+syncpr

PPC RWC+lwsyncpr+syncpr
"Rfe LwSyncdRRPR FreRP SyncdWRPR FreRP"
Cycle=Rfe LwSyncdRRPR FreRP SyncdWRPR FreRP
Prefetch=0:x=T,1:y=T,2:x=T
Com=Rf Fr Fr
Orig=Rfe LwSyncdRRPR FreRP SyncdWRPR FreRP
{
0:r2=x;
1:r2=x; 1:r4=y;
2:r2=y; 2:r4=x;
}
 P0           | P1             | P2             ;
 li r1,1      | lwz r1,0(r2)   | li r1,1        ;
 stw r1,0(r2) | lwsync         | stw r1,0(r2)   ;
              | lwarx r3,r0,r4 | sync           ;
              |                | lwarx r3,r0,r4 ;
exists
(1:r1=1 /\ 1:r3=0 /\ 2:r3=0)