Test T8

AArch64 T8
{
0:X1=x; 0:X10=y; 0:X5=z;
1:X1=y; 1:X3=x;
}
P0                    | P1           ;
LDR W0,[X1]           | LDAR W0,[X1] ;
CMP W0,#1             | MOV W2,#1    ;
CSEL W2,W3,W4,EQ      | STR W2,[X3]  ;
STR W2,[X5]           |              ;
LDXR W3,[X5]          |              ;
STXR W7,W4,[X5]       |              ; (* Remove me *)
LDR W8,[X5]           |              ;
EOR W9,W8,W8          |              ;
MOV W11,#1            |              ;
STR W11,[X10,W8,SXTW] |              ;
Observed
    1:X0=1; 0:X7=0; 0:X0=1;