AArch64 MP+dmb.sy+pos-ctrl-ctrl-[ws-rf]-ctrlisb
"DMB.SYdWW Rfe PosRR DpCtrldR DpCtrldW WsLeave RfBack DpCtrlIsbdR Fre"
Cycle=Rfe PosRR DpCtrldR DpCtrldW WsLeave RfBack DpCtrlIsbdR Fre DMB.SYdWW
Relax=
Safe=Rfe Fre PosRR DMB.SYdWW DpCtrldW DpCtrldR DpCtrlIsbdR [WsLeave,RfBack]
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr Rf
Orig=DMB.SYdWW Rfe PosRR DpCtrldR DpCtrldW WsLeave RfBack DpCtrlIsbdR Fre
{
0:X1=x; 0:X3=y;
1:X1=y; 1:X4=z; 1:X6=a; 1:X9=x;
2:X1=a;
}
P0 | P1 | P2 ;
MOV W0,#1 | LDR W0,[X1] | MOV W0,#2 ;
STR W0,[X1] | LDR W2,[X1] | STR W0,[X1] ;
DMB SY | CBNZ W2,LC00 | ;
MOV W2,#1 | LC00: | ;
STR W2,[X3] | LDR W3,[X4] | ;
| CBNZ W3,LC01 | ;
| LC01: | ;
| MOV W5,#1 | ;
| STR W5,[X6] | ;
| LDR W7,[X6] | ;
| CBNZ W7,LC02 | ;
| LC02: | ;
| ISB | ;
| LDR W8,[X9] | ;
Observed
y=1; x=1; a=1; 1:X8=1; 1:X7=1; 1:X2=0; 1:X0=1;