You&#x27;re right, I&#x27;m not familiar with the culture of who best contributes to clang and llvm.<p>But I know some things about what words mean, and publishing a paper describing an open source project in March and not having any code available for download in April is just kind of <i>weird</i>, no?<p>It&#x27;s good to talk about working out the precise mechanics of upstreaming code.  But in an open source project, you&#x27;d expect to publish your fork so that other people can play an informed part in that conversation.