From an unrelated thread:
… This will need to be fixed before we can commit the patch. Since Phabricator automatically closed http://reviews.llvm.org/D12761, I’ve created a new revision. The attached diff is a very a slightly modified version of your original patch …
I have wanted to reopen a Phabricator revision too many times already, but couldn’t. I don’t know who the admin of reviews.llvm.org is (CC’ing Chandler as my wild guess). Could we configure it so that revisions can be reopened?