AArch64 MP+dmb.sy+addr-pos-ctrl-[fr-rf]-ctrl
"DMB.SYdWW Rfe DpAddrdR PosRR DpCtrldR FrLeave RfBack DpCtrldR Fre"
Cycle=Rfe DpAddrdR PosRR DpCtrldR FrLeave RfBack DpCtrldR Fre DMB.SYdWW
Relax=
Safe=Rfe Fre PosRR DMB.SYdWW DpAddrdR DpCtrldR [FrLeave,RfBack]
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr Rf
Orig=DMB.SYdWW Rfe DpAddrdR PosRR DpCtrldR FrLeave RfBack DpCtrldR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X4=z; 1:X7=a; 1:X10=x;
2:X1=a;
}
P0 | P1 | P2 ;
MOV W0,#1 | LDR W0,[X1] | MOV W0,#1 ;
STR W0,[X1] | EOR W2,W0,W0 | STR W0,[X1] ;
DMB SY | LDR W3,[X4,W2,SXTW] | ;
MOV W2,#1 | LDR W5,[X4] | ;
STR W2,[X3] | CBNZ W5,LC00 | ;
| LC00: | ;
| LDR W6,[X7] | ;
| LDR W8,[X7] | ;
| CBNZ W8,LC01 | ;
| LC01: | ;
| LDR W9,[X10] | ;
Observed
y=1; x=1; a=1; 1:X9=1; 1:X8=0; 1:X6=1; 1:X0=1;
and y=1; x=1; a=1; 1:X9=1; 1:X8=0; 1:X6=1; 1:X0=0;
and y=1; x=1; a=1; 1:X9=0; 1:X8=0; 1:X6=1; 1:X0=0;