Test LB+addrrp+isyncrp

PPC LB+addrrp+isyncrp
"DpAddrdWRP RfePR ISyncdRWRP RfePR"
Cycle=RfePR ISyncdRWRP RfePR DpAddrdWRP
Prefetch=
Com=Rf Rf
Orig=DpAddrdWRP RfePR ISyncdRWRP RfePR
{
0:r2=x; 0:r5=y;
1:r2=y; 1:r4=x;
}
 P0             | P1             ;
 lwarx r1,r0,r2 | lwarx r1,r0,r2 ;
 xor r3,r1,r1   | isync          ;
 li r4,1        | li r3,1        ;
 stwx r4,r3,r5  | stw r3,0(r4)   ;
exists
(0:r1=1 /\ 1:r1=1)