Test RWC+ctrlpr+syncpr

PPC RWC+ctrlpr+syncpr
"Rfe DpCtrldRPR FreRP SyncdWRPR FreRP"
Cycle=Rfe DpCtrldRPR FreRP SyncdWRPR FreRP
Prefetch=0:x=T,1:y=T,2:x=T
Com=Rf Fr Fr
Orig=Rfe DpCtrldRPR 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) | cmpw r1,r1     | stw r1,0(r2)   ;
              | beq  LC00      | sync           ;
              | LC00:          | lwarx r3,r0,r4 ;
              | lwarx r3,r0,r4 |                ;
exists
(1:r1=1 /\ 1:r3=0 /\ 2:r3=0)