AArch64 MP+dmb.sy+addr-rfi-[fr-rf]-ctrl-pos "DMB.SYdWW Rfe DpAddrdW Rfi FrLeave RfBack DpCtrldR PosRR Fre" Cycle=Rfi FrLeave RfBack DpCtrldR PosRR Fre DMB.SYdWW Rfe DpAddrdW Relax= Safe=Rfi Rfe Fre PosRR DMB.SYdWW DpAddrdW DpCtrldR [FrLeave,RfBack] Prefetch=0:x=F,0:y=W,1:y=F,1:x=T Com=Rf Fr Rf Orig=DMB.SYdWW Rfe DpAddrdW Rfi FrLeave RfBack DpCtrldR PosRR Fre { 0:X1=x; 0:X3=y; 1:X1=y; 1:X4=z; 1:X8=x; 2:X1=z; } P0 | P1 | P2 ; MOV W0,#1 | LDR W0,[X1] | MOV W0,#2 ; STR W0,[X1] | EOR W2,W0,W0 | STR W0,[X1] ; DMB SY | MOV W3,#1 | ; MOV W2,#1 | STR W3,[X4,W2,SXTW] | ; STR W2,[X3] | LDR W5,[X4] | ; | LDR W6,[X4] | ; | CBNZ W6,LC00 | ; | LC00: | ; | LDR W7,[X8] | ; | LDR W9,[X8] | ; Observed z=2; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=1; and z=1; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=1; and z=2; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=0; and z=1; y=1; x=1; 1:X9=0; 1:X7=1; 1:X6=1; 1:X5=1; 1:X0=0;