https://bugs.freedesktop.org/show_bug.cgi?id=86432
--- Comment #3 from Andy Furniss adf.lists@gmail.com --- (In reply to Marek Olšák from comment #2)
Created attachment 109675 [details] [review] workaround
Can you test this LLVM patch. It's not a final fix.
It doesn't apply to head, so testing reset on the bad commit - Yes it does workaround the issue.