Test MP-rel-swp-addr-isb

AArch64 MP-rel-swp-addr-isb
{
1:X1=x; 1:X3=y; 1:X10=z; 1:X11=t;
0:X1=x; 0:X3=y;
}
 P0          |  P1                   ;
MOV W0,#1    | LDR W0,[X1]           ;
STR W0,[X3]  | SWP W0, W12, [X10]    ;
MOV W2,#1    | LDR W4,[X11,W12,SXTW] ;
STLR W2,[X1] | ISB                   ;
             | LDR W2,[X3]           ;
Observed
    1:X2=0; 1:X0=1;