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AArch64 R+dmb.st+rfi-addr-ctrl-[fr-rf]
"DMB.STdWW Wse Rfi DpAddrdR DpCtrldR FrLeave RfBack Fre"
Cycle=Rfi DpAddrdR DpCtrldR FrLeave RfBack Fre DMB.STdWW Wse
Relax=
Safe=Rfi Fre Wse DMB.STdWW DpAddrdR DpCtrldR [FrLeave,RfBack]
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Ws Fr Rf
Orig=DMB.STdWW Wse Rfi DpAddrdR DpCtrldR FrLeave RfBack Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X5=z; 1:X7=x;
2:X1=x;
}
P0 | P1 | P2 ;
MOV W0,#2 | MOV W0,#2 | MOV W0,#1 ;
STR W0,[X1] | STR W0,[X1] | STR W0,[X1] ;
DMB ST | LDR W2,[X1] | ;
MOV W2,#1 | EOR W3,W2,W2 | ;
STR W2,[X3] | LDR W4,[X5,W3,SXTW] | ;
| CBNZ W4,LC00 | ;
| LC00: | ;
| LDR W6,[X7] | ;
| LDR W8,[X7] | ;
Observed
y=2; x=2; 1:X8=0; 1:X6=2; 1:X2=2;
and y=1; x=2; 1:X8=0; 1:X6=2; 1:X2=2;
and y=2; x=1; 1:X8=0; 1:X6=2; 1:X2=2;
and y=1; x=1; 1:X8=0; 1:X6=2; 1:X2=2;
and y=2; x=2; 1:X8=0; 1:X6=1; 1:X2=2;
and y=1; x=2; 1:X8=0; 1:X6=1; 1:X2=2;
and y=2; x=1; 1:X8=0; 1:X6=1; 1:X2=2;
and y=1; x=1; 1:X8=0; 1:X6=1; 1:X2=2;