On Thu, 9 May 2019 19:59:17 -0600
ison <ison@airmail.cc> wrote:

> Thanks for helping to narrow down the issue. Although I'm not sure where to go
> from here.

Maybe try mesa 18.3.6, maybe someone fixed it there already.
Apparently there's also mesa 19.0.4.
If it can't be fixed otherwise, we can compile the old mesa with llvm 6.