Normally, I would be asking in this comment if there is any progress on this,
but I can tell there has been... change, at least.

Now instead of crashing, it deadlocks the calling process waiting on a mutex.
Forever, as far as I can tell.

LLVM version: r289770
Mesa version: commit 47351b843a

Perhaps this is more easily fixed? Or is this getting to the heart of the
matter implied in comment 2?