Test R+clflushother+mfence+WC+WC

X86_64 R+clflushother+mfence+WC+WC
"ClFlushOtherdWW Coe MFencedWR Fre"
MT=x:WC y:WC
Generator=diyone7 (version 7.56+02~dev)
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Co Fr
Orig=ClFlushOtherdWW Coe MFencedWR Fre
Align=
{
}
 P0           | P1            ;
 movl $1,(x)  | movl $2,(y)   ;
 clflush (_z) | mfence        ;
 movl $1,(y)  | movl (x),%eax ;
exists (y=2 /\ 1:rax=0)