On Wed, Sep 25, 2019 at 11:04 AM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > > IMO it's better to lift reading the first word out of the loop, like this: > ... > Do you see any problems with that variant? That looks fine to me too. It's a bit harder for humans to read because of how it reads the word from user space one iteration early, but from a code generation standpoint it probably is better. So slightly subtler source code, and imho harder to read, but it looks correct to me. Linus