https://bugs.freedesktop.org/show_bug.cgi?id=105218
--- Comment #7 from Matias N. Goldberg dark_sylinc@yahoo.com.ar --- I just tested with Mesa latest from git (2f175bfe5d8ca59a8a68b6d6d072cd7bf2f8baa9) and LLVM 7.0 revision 328838 (anything newer and Mesa won't compile due to a known issue) and the problem is gone.
Either a later Mesa commit already fixed it, or my LLVM version was too old.
This ticket can be closed as the problem can no longer be reproduced.
Thanks and Cheers