https://bugs.freedesktop.org/show_bug.cgi?id=64201
--- Comment #42 from Aaron Watry awatry@gmail.com --- (In reply to comment #41)
I think those patches are merged with llvm-trunk. Manually installation give me hunks and fails.
The second LLVM series is not yet merged upstream, but the first one is. I was able to use a clean LLVM/Clang checkout from today with the second series on my Cedar-based machine.