Test T11

AArch64 T11
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X11=x; 1:X5=za;
}
P0           | P1               ;
MOV W0,#2    | LDR W0,[X1]      ;
STR W0,[X1]  | CMP W0,#1        ;
MOV W2,#1    | CSEL W2,W3,W4,EQ ;
STLR W2,[X3] | STR W2,[X5]      ;
      | LDXR W6,[X5]     ;
      | STXR W7,W8,[X5]  ;
             | LDR W9,[X5]      ;
             | ORR W10,W9,#1    ;
      | STR W10,[X11]    ;
Observed
    x=2; 1:X7=0; 1:X0=1;