Test ISA2+dmb.st+addr+addr

AArch64 ISA2+dmb.st+addr+addr
"DMB.STdWW Rfe DpAddrdW Rfe DpAddrdR Fre"
Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T
Com=Rf Rf Fr
Orig=DMB.STdWW Rfe DpAddrdW Rfe DpAddrdR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X4=z;
2:X1=z; 2:X4=x;
}
 P0          | P1                  | P2                  ;
 MOV W0,#1   | LDR W0,[X1]         | LDR W0,[X1]         ;
 STR W0,[X1] | EOR W2,W0,W0        | EOR W2,W0,W0        ;
 DMB ST      | MOV W3,#1           | LDR W3,[X4,W2,SXTW] ;
 MOV W2,#1   | STR W3,[X4,W2,SXTW] |                     ;
 STR W2,[X3] |                     |                     ;
exists
(1:X0=1 /\ 2:X0=1 /\ 2:X3=0)