PPC 2+2W+syncpa+poap
"SyncdWWPA WseAA PodWWAP Wse"
Cycle=WseAA PodWWAP Wse SyncdWWPA
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Ws Ws
Orig=SyncdWWPA WseAA PodWWAP Wse
{ 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 ;
stw r1,0(r2) | lwarx %sta,r0,r2 ;
sync | stwcx. r1,r0,r2 ;
li r3,1 | bne Fail1 ;
lwarx %sta,r0,r4 | li r3,1 ;
stwcx. r3,r0,r4 | stw r3,0(r4) ;
bne Fail0 | 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)