AArch64 MP+dmb.sy+ctrl-[ws-rf]-ctrl-rfi-pos
"DMB.SYdWW Rfe DpCtrldW WsLeave RfBack DpCtrldW Rfi PosRR Fre"
Cycle=Rfi PosRR Fre DMB.SYdWW Rfe DpCtrldW WsLeave RfBack DpCtrldW
Relax=
Safe=Rfi Rfe Fre PosRR DMB.SYdWW DpCtrldW [WsLeave,RfBack]
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr Rf
Orig=DMB.SYdWW Rfe DpCtrldW WsLeave RfBack DpCtrldW Rfi PosRR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X3=z; 1:X6=x;
2:X1=z;
}
P0 | P1 | P2 ;
MOV W0,#2 | LDR W0,[X1] | MOV W0,#2 ;
STR W0,[X1] | CBNZ W0,LC00 | STR W0,[X1] ;
DMB SY | LC00: | ;
MOV W2,#1 | MOV W2,#1 | ;
STR W2,[X3] | STR W2,[X3] | ;
| LDR W4,[X3] | ;
| CBNZ W4,LC01 | ;
| LC01: | ;
| MOV W5,#1 | ;
| STR W5,[X6] | ;
| LDR W7,[X6] | ;
| LDR W8,[X6] | ;
Observed
z=1; y=1; x=2; 1:X8=1; 1:X7=2; 1:X4=1; 1:X0=0;