Test ppc-cookbook6.5.1-cpp.iriw

PPC ppc-cookbook6.5.1-cpp.iriw (PPCcookbookSixFiveOne) "Independent Reads of Independent Writes"
{
  P0:r1=x; P2:r1=x; P3:r1=x;
  P1:r2=y; P2:r2=y; P3:r2=y;
  P0:r8=1; P1:r8=1;
  x=0; y=0;
}
 P0           | P1           | P2           | P3            ;
 stw r8,0,r1  | stw r8,0,r2  | lwz r5,0,r1  | lwz r5,0,r2   ;
              |              | sync         | sync          ;
              |              | lwz r6,0,r2  | lwz r6,0,r1   ;

final (P2:r5=1 /\ P2:r6=0 /\ P3:r5 = 1 /\ P3:r6 = 0);
with 
armmem: ~exists;
doko: exists;
default: ~exists;

<<
genprog generated/ppc-cookbook6.5.1-cpp.iriw-prog.tex
show 5
essdump generated/ppc-cookbook6.5.1-cpp.iriw-ess.dot
>>
<<
show 0 of ess 0
readfrom generated/ppc-cookbook6.5.1-cpp.iriw-rf.dot
>>