Test MP+rfi-data+lwsync

PPC MP+rfi-data+lwsync
"Rfi DpDatadW Rfe LwSyncdRR Fre"
Prefetch=1:x=T
Com=Rf Fr
Orig=Rfi DpDatadW Rfe LwSyncdRR Fre
{
0:r2=x; 0:r5=y;
1:r2=y; 1:r4=x;
}
 P0           | P1           ;
 li r1,1      | lwz r1,0(r2) ;
 stw r1,0(r2) | lwsync       ;
 lwz r3,0(r2) | lwz r3,0(r4) ;
 xor r4,r3,r3 |              ;
 addi r4,r4,1 |              ;
 stw r4,0(r5) |              ;
exists
(0:r3=1 /\ 1:r1=1 /\ 1:r3=0)