AArch64 MP+dmb.sy+ctrl-addr-ctrl-addr-pos
"DMB.SYdWW Rfe DpCtrldR DpAddrdR DpCtrldR DpAddrdR PosRR Fre"
Cycle=Rfe DpCtrldR DpAddrdR DpCtrldR DpAddrdR PosRR Fre DMB.SYdWW
Relax=
Safe=Rfe Fre PosRR DMB.SYdWW DpAddrdR DpCtrldR
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMB.SYdWW Rfe DpCtrldR DpAddrdR DpCtrldR DpAddrdR PosRR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=z; 1:X6=a; 1:X8=b; 1:X11=x;
}
P0 | P1 ;
MOV W0,#1 | LDR W0,[X1] ;
STR W0,[X1] | CBNZ W0,LC00 ;
DMB SY | LC00: ;
MOV W2,#1 | LDR W2,[X3] ;
STR W2,[X3] | EOR W4,W2,W2 ;
| LDR W5,[X6,W4,SXTW] ;
| CBNZ W5,LC01 ;
| LC01: ;
| LDR W7,[X8] ;
| EOR W9,W7,W7 ;
| LDR W10,[X11,W9,SXTW] ;
| LDR W12,[X11] ;
Observed
y=1; x=1; 1:X12=0; 1:X10=1; 1:X0=1;
and y=1; x=1; 1:X12=0; 1:X10=1; 1:X0=0;