Hi Yonghong.
I just initiated a discussion (RFC patch
https://reviews.llvm.org/D69393) for llvm/clang to support user
address_space attribute.
I am not able to add your name in subscriber list as you probably
not registered with llvm mailing list or phabricator.
Just let you know so we can have an eventual proposal which
will be also good for gcc. Please participate in discussion.
Thanks for reaching out, and sorry for the delay in replying: I needed
some time to process my backlog after a couple of weeks off.
I just created an account in phabricator (jemarch). Will follow up
there.
Salud!
