AArch64 MP+dmb.sy+data-rfi-pos-ctrl-pos
"DMB.SYdWW Rfe DpDatadW Rfi PosRR DpCtrldR PosRR Fre"
Cycle=Rfi PosRR DpCtrldR PosRR Fre DMB.SYdWW Rfe DpDatadW
Relax=
Safe=Rfi Rfe Fre PosRR DMB.SYdWW DpDatadW DpCtrldR
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMB.SYdWW Rfe DpDatadW Rfi PosRR DpCtrldR PosRR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=z; 1:X7=x;
}
P0 | P1 ;
MOV W0,#1 | LDR W0,[X1] ;
STR W0,[X1] | EOR W2,W0,W0 ;
DMB SY | ADD W2,W2,#1 ;
MOV W2,#1 | STR W2,[X3] ;
STR W2,[X3] | LDR W4,[X3] ;
| LDR W5,[X3] ;
| CBNZ W5,LC00 ;
| LC00: ;
| LDR W6,[X7] ;
| LDR W8,[X7] ;
Observed
z=1; y=1; x=1; 1:X8=0; 1:X6=1; 1:X5=1; 1:X4=1; 1:X0=1;
and z=1; y=1; x=1; 1:X8=0; 1:X6=1; 1:X5=1; 1:X4=1; 1:X0=0;