AArch64 MP+dmb.sy+ctrl-addr-ctrl-[fr-rf]-addr
"DMB.SYdWW Rfe DpCtrldR DpAddrdR DpCtrldR FrLeave RfBack DpAddrdR Fre"
Cycle=Rfe DpCtrldR DpAddrdR DpCtrldR FrLeave RfBack DpAddrdR Fre DMB.SYdWW
Relax=
Safe=Rfe Fre 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 DpCtrldR DpAddrdR DpCtrldR FrLeave RfBack DpAddrdR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=z; 1:X6=a; 1:X8=b; 1:X12=x;
2:X1=b;
}
P0 | P1 | P2 ;
MOV W0,#1 | LDR W0,[X1] | MOV W0,#1 ;
STR W0,[X1] | CBNZ W0,LC00 | STR W0,[X1] ;
DMB SY | LC00: | ;
MOV W2,#1 | LDR W2,[X3] | ;
STR W2,[X3] | EOR W4,W2,W2 | ;
| LDR W5,[X6,W4,SXTW] | ;
| CBNZ W5,LC01 | ;
| LC01: | ;
| LDR W7,[X8] | ;
| LDR W9,[X8] | ;
| EOR W10,W9,W9 | ;
| LDR W11,[X12,W10,SXTW] | ;
Observed
y=1; x=1; b=1; 1:X9=0; 1:X7=1; 1:X11=1; 1:X0=1;
and y=1; x=1; b=1; 1:X9=0; 1:X7=1; 1:X11=1; 1:X0=0;
and y=1; x=1; b=1; 1:X9=0; 1:X7=1; 1:X11=0; 1:X0=0;