https://bugs.freedesktop.org/show_bug.cgi?id=88183
--- Comment #17 from Michel Dänzer michel@daenzer.net --- (In reply to Alexandre Demers from comment #16)
While bisecting, using today's mesa from git, I don't have any crash/hang...
If that's still using LLVM 3.5, maybe it's actually an LLVM regression.