Test R+dmb.sy+dmb.ldla

AArch64 R+dmb.sy+dmb.ldla
"DMB.SYdWW WsePL DMB.LDdWRLA FreAP"
Cycle=FreAP DMB.SYdWW WsePL DMB.LDdWRLA
Relax=
Safe=DMB.LDdWR DMB.SYdWW WsePL FreAP
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Ws Fr
Orig=DMB.SYdWW WsePL DMB.LDdWRLA FreAP
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=x;
}
 P0          | P1           ;
 MOV W0,#1   | MOV W0,#2    ;
 STR W0,[X1] | STLR W0,[X1] ;
 DMB SY      | DMB LD       ;
 MOV W2,#1   | LDAR W2,[X3] ;
 STR W2,[X3] |              ;
Observed
    y=2; 1:X2=0;