AArch64 MP+dmb.sy+fri-rfi-ctrl-rfi-pos
"DMB.SYdWW Rfe Fri Rfi DpCtrldW Rfi PosRR Fre"
Cycle=Rfi PosRR Fre DMB.SYdWW Rfe Fri Rfi DpCtrldW
Relax=
Safe=Rfi Rfe Fri Fre PosRR DMB.SYdWW DpCtrldW
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMB.SYdWW Rfe Fri Rfi DpCtrldW Rfi PosRR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X5=x;
}
P0 | P1 ;
MOV W0,#2 | LDR W0,[X1] ;
STR W0,[X1] | MOV W2,#2 ;
DMB SY | STR W2,[X1] ;
MOV W2,#1 | LDR W3,[X1] ;
STR W2,[X3] | CBNZ W3,LC00 ;
| LC00: ;
| MOV W4,#1 ;
| STR W4,[X5] ;
| LDR W6,[X5] ;
| LDR W7,[X5] ;
Observed
y=2; x=2; 1:X7=2; 1:X6=1; 1:X3=2; 1:X0=1;