Test SB+lwsync+popa

PPC SB+lwsync+popa
"LwSyncdWR Fre PodWRPA FreAP"
Cycle=FreAP LwSyncdWR Fre PodWRPA
Prefetch=0:y=T,1:x=T
Com=Fr Fr
Orig=LwSyncdWR Fre PodWRPA FreAP
{ ok=1;
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=x; 1:r6=ok;
}
 P0           | P1              ;
 li r1,1      | li r1,1         ;
 stw r1,0(r2) | stw r1,0(r2)    ;
 lwsync       | lwarx r3,r0,r4  ;
 lwz r3,0(r4) | stwcx. r3,r0,r4 ;
              | bne  Fail1      ;
              | b   Exit1       ;
              | Fail1:          ;
              | li r5,0         ;
              | stw r5,0(r6)    ;
              | Exit1:          ;
exists
(ok=1 /\ 0:r3=0 /\ 1:r3=0)