X86_64 SB+clflushs+WB+WB "ClFlushdWR 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=ClFlushdWR Fre ClFlushdWR Fre Align= { } P0 | P1 ; movl $1,(x) | movl $1,(y) ; clflush (x) | clflush (y) ; movl (y),%eax | movl (x),%eax ; exists (0:rax=0 /\ 1:rax=0)