Test ATOM04

AArch64 ATOM04
"PodWWPX WseXX PodWRXP Fre"
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Ws Fr
Orig=PodWWPX WseXX PodWRXP Fre
{ ok=1;
0:X1=x; 0:X2=y; 0:X7=ok;
1:X0=y; 1:X5=x; 1:X7=ok;
}
 P0              | P1              ;
 MOV W0,#1       | MOV W1,#2       ;
 STR W0,[X1]     | LDXR W2,[X0]    ;
 MOV W3,#1       | STXR W3,W1,[X0] ;
 LDXR W4,[X2]    | CBNZ W3,Fail1   ;
 STXR W5,W3,[X2] | LDR W4,[X5]     ;
 CBNZ W5,Fail0   | B Exit1         ;
 B Exit0         | Fail1:          ;
 Fail0:          | MOV W6,#0       ;
 MOV W6,#0       | STR W6,[X7]     ;
 STR W6,[X7]     | Exit1:          ;
 Exit0:          |                 ;
exists
(ok=1 /\ y=2 /\ 0:X4=0 /\ 1:X2=1 /\ 1:X4=0)