Test LB+syncrp+pora

PPC LB+syncrp+pora
"SyncdRWRP RfePR PodRWRA RfeAR"
Cycle=RfeAR SyncdRWRP RfePR PodRWRA
Prefetch=
Com=Rf Rf
Orig=SyncdRWRP RfePR PodRWRA RfeAR
{ ok=1;
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=x; 1:r6=ok;
}
 P0             | P1               ;
 lwarx r1,r0,r2 | lwarx r1,r0,r2   ;
 sync           | li r3,1          ;
 li r3,1        | lwarx %sta,r0,r4 ;
 stw r3,0(r4)   | stwcx. r3,r0,r4  ;
                | bne  Fail1       ;
                | b   Exit1        ;
                | Fail1:           ;
                | li r5,0          ;
                | stw r5,0(r6)     ;
                | Exit1:           ;
exists
(ok=1 /\ 0:r1=1 /\ 1:r1=1)