Test SB+mfence+clflush+WB+WB

X86_64 SB+mfence+clflush+WB+WB
"MFencedWR Fre ClFlushdWR Fre"
MT=x:WB y:WB
Generator=diyone7 (version 7.56+02~dev)
Prefetch=0:x=F,0:y=T,1:y=F,1:x=T
Com=Fr Fr
Orig=MFencedWR Fre ClFlushdWR Fre
Align=
{
}
 P0            | P1            ;
 movl $1,(x)   | movl $1,(y)   ;
 mfence        | clflush (y)   ;
 movl (y),%eax | movl (x),%eax ;
exists (0:rax=0 /\ 1:rax=0)