Test LB+rs

AArch64 LB+rs
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Rf Rf
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=x;
}
 P0          | P1          ;
 LDR W0,[X1] | LDR W0,[X1] ;
 ADD W2,W0,#0| ADD W2,W0,#1;
 MOV W0,#1   | STR W2,[X3] ;
 STR W0,[X3] |             ;
exists
(0:X0=1 /\ 0:X2=2 /\ 1:X2=2 /\ y=1 /\ x=2)