AArch64 MP+dmb.sy+pos-fri-rfi-addr-rfi
"DMB.SYdWW Rfe PosRR Fri Rfi DpAddrdW Rfi Fre"
Cycle=Rfi Fre DMB.SYdWW Rfe PosRR Fri Rfi DpAddrdW
Relax=
Safe=Rfi Rfe Fri Fre PosRR DMB.SYdWW DpAddrdW
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=DMB.SYdWW Rfe PosRR Fri Rfi DpAddrdW Rfi Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X7=x;
}
P0 | P1 ;
MOV W0,#2 | LDR W0,[X1] ;
STR W0,[X1] | LDR W2,[X1] ;
DMB SY | MOV W3,#2 ;
MOV W2,#1 | STR W3,[X1] ;
STR W2,[X3] | LDR W4,[X1] ;
| EOR W5,W4,W4 ;
| MOV W6,#1 ;
| STR W6,[X7,W5,SXTW] ;
| LDR W8,[X7] ;
Observed
y=2; x=2; 1:X8=2; 1:X4=2; 1:X2=1; 1:X0=1;
and y=2; x=2; 1:X8=2; 1:X4=2; 1:X2=1; 1:X0=0;
and y=2; x=2; 1:X8=1; 1:X4=2; 1:X2=1; 1:X0=0;