Test LBNExpNExp+ExpNExp6

AArch64 LBNExpNExp+ExpNExp6
TTHM=HA HD
{
pte_x=(db:0,dbm:1);
0:X3=x;
1:X6=pte_x;
1:X4=(oa:phy_x,valid :0);
x=1;
int y;
}
P0              | P1         ;
MOV W4,#2       | LDR X5,[X6];
L0: STR W4,[X3] | STR X4,[X6];
exists (1:X5=(oa:PA(x), dbm:1) /\ [x]=1 /\ fault(P0:L0,x))