AArch64 MP+dmb.sy+pos-ctrl-rfi-pos-ctrl
"DMB.SYdWW Rfe PosRR DpCtrldW Rfi PosRR DpCtrldR Fre"
Cycle=Rfi PosRR DpCtrldR Fre DMB.SYdWW Rfe PosRR DpCtrldW
Relax=
Safe=Rfi Rfe Fre PosRR DMB.SYdWW DpCtrldW DpCtrldR
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMB.SYdWW Rfe PosRR DpCtrldW Rfi PosRR DpCtrldR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X4=z; 1:X8=x;
}
P0 | P1 ;
MOV W0,#1 | LDR W0,[X1] ;
STR W0,[X1] | LDR W2,[X1] ;
DMB SY | CBNZ W2,LC00 ;
MOV W2,#1 | LC00: ;
STR W2,[X3] | MOV W3,#1 ;
| STR W3,[X4] ;
| LDR W5,[X4] ;
| LDR W6,[X4] ;
| CBNZ W6,LC01 ;
| LC01: ;
| LDR W7,[X8] ;
Observed
z=1; y=1; x=1; 1:X7=1; 1:X6=1; 1:X5=1; 1:X2=0; 1:X0=1;
and z=1; y=1; x=1; 1:X7=0; 1:X6=1; 1:X5=1; 1:X2=0; 1:X0=1;