Test ISA2+lwsync+fri+addr

PPC ISA2+lwsync+fri+addr
"LwSyncdWW Rfe Fri Rfe DpAddrdR Fre"
Prefetch=2:x=T
Com=Rf Rf Fr
Orig=LwSyncdWW Rfe Fri Rfe DpAddrdR Fre
{
0:r2=x; 0:r4=y;
1:r2=y;
2:r2=y; 2:r5=x;
}
 P0           | P1           | P2            ;
 li r1,1      | lwz r1,0(r2) | lwz r1,0(r2)  ;
 stw r1,0(r2) | li r3,2      | xor r3,r1,r1  ;
 lwsync       | stw r3,0(r2) | lwzx r4,r3,r5 ;
 li r3,1      |              |               ;
 stw r3,0(r4) |              |               ;
exists
(y=2 /\ 1:r1=1 /\ 2:r1=2 /\ 2:r4=0)