Test 2+2W+po+poxp+SYS2

AArch64 2+2W+po+poxp+SYS2
"PodWW WsePX PodWWXP Wse"
Cycle=Wse PodWW WsePX PodWWXP
Relax=WsePX
Safe=Wse PodWW
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Ws Ws
Orig=PodWW WsePX PodWWXP Wse
{
0:X1=x; 0:X3=y;
1:X0=y; 1:X5=x;
}
 P0          | P1              ;
 MOV W0,#2   | MOV W1,#2       ;
 STR W0,[X1] | LDXR W2,[X0]    ;
 MOV W2,#1   | STXR W3,W1,[X0] ;
 STR W2,[X3] | MOV W4,#1       ;
             | STR W4,[X5]     ;
exists
(x=2 /\ y=2 /\ 1:X3=0 /\ 1:X2=1)