Test SB+sync+rfi-addr

PPC SB+sync+rfi-addr
"SyncdWR Fre Rfi DpAddrdR Fre"
Prefetch=0:y=T,1:x=T
Com=Fr Fr
Orig=SyncdWR Fre Rfi DpAddrdR Fre
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r6=x;
}
 P0           | P1            ;
 li r1,1      | li r1,1       ;
 stw r1,0(r2) | stw r1,0(r2)  ;
 sync         | lwz r3,0(r2)  ;
 lwz r3,0(r4) | xor r4,r3,r3  ;
              | lwzx r5,r4,r6 ;
exists
(0:r3=0 /\ 1:r3=1 /\ 1:r5=0)