Test MP+clflushntnt+mfence+UC+UC

X86_64 MP+clflushntnt+mfence+UC+UC
"ClFlushdWWNTNT RfeNTNa MFencedRR FreNaNT"
MT=x:UC y:UC
Generator=diyone7 (version 7.56+02~dev)
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
Com=Rf Fr
Orig=ClFlushdWWNTNT RfeNTNa MFencedRR FreNaNT
Align=
{
0:rax=x; 0:rcx=y;
}
 P0                  | P1            ;
 movl $1,%ebx        | movl (y),%eax ;
 movntil %ebx,(%rax) | mfence        ;
 clflush (%rax)      | movl (x),%ebx ;
 movl $1,%edx        |               ;
 movntil %edx,(%rcx) |               ;
exists (1:rax=1 /\ 1:rbx=0)