Test LB0004

PPC LB0004
"DpDatadW Rfe DpAddrdW PosWR DpAddrdW Rfe"
Cycle=Rfe DpAddrdW PosWR DpAddrdW Rfe DpDatadW
Relax=[Rfe,DpDatadW,Rfe]
Safe=PosWR DpAddrdW
Prefetch=0:x=F,0:y=W,1:y=F,1:x=W
Com=Rf Rf
Orig=DpDatadW Rfe DpAddrdW PosWR DpAddrdW Rfe
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=z; 1:r9=x;
}
 P0           | P1            ;
 lwz r1,0(r2) | lwz r1,0(r2)  ;
 xor r3,r1,r1 | xor r3,r1,r1  ;
 addi r3,r3,1 | li r4,1       ;
 stw r3,0(r4) | stwx r4,r3,r5 ;
              | lwz r6,0(r5)  ;
              | xor r7,r6,r6  ;
              | li r8,1       ;
              | stwx r8,r7,r9 ;
exists
(0:r1=1 /\ 1:r1=1)