Test 2+2W+syncap+popa

PPC 2+2W+syncap+popa
"SyncdWWAP Wse PodWWPA WseAA"
Cycle=WseAA SyncdWWAP Wse PodWWPA
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Ws Ws
Orig=SyncdWWAP Wse PodWWPA WseAA
{ ok=1;
0:r2=x; 0:r4=y; 0:r6=ok;
1:r2=y; 1:r4=x; 1:r6=ok;
}
 P0               | P1               ;
 li r1,2          | li r1,2          ;
 lwarx %sta,r0,r2 | stw r1,0(r2)     ;
 stwcx. r1,r0,r2  | li r3,1          ;
 bne  Fail0       | lwarx %sta,r0,r4 ;
 sync             | stwcx. r3,r0,r4  ;
 li r3,1          | bne  Fail1       ;
 stw r3,0(r4)     | b   Exit1        ;
 b   Exit0        | Fail1:           ;
 Fail0:           | li r5,0          ;
 li r5,0          | stw r5,0(r6)     ;
 stw r5,0(r6)     | Exit1:           ;
 Exit0:           |                  ;
exists
(ok=1 /\ x=2 /\ y=2)