Test MP+lwsync+[fr-rf]-addr

PPC MP+lwsync+[fr-rf]-addr
"LwSyncdWW Rfe FrLeave RfBack DpAddrdR Fre"
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr Rf
Orig=LwSyncdWW Rfe FrLeave RfBack DpAddrdR Fre
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r6=x;
2:r2=y;
}
 P0           | P1            | P2           ;
 li r1,1      | lwz r1,0(r2)  | li r1,2      ;
 stw r1,0(r2) | lwz r3,0(r2)  | stw r1,0(r2) ;
 lwsync       | xor r4,r3,r3  |              ;
 li r3,1      | lwzx r5,r4,r6 |              ;
 stw r3,0(r4) |               |              ;
exists
(y=2 /\ 1:r1=1 /\ 1:r3=2 /\ 1:r5=0)