Test 2+2W+poxps+SYS2

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