r305918 and "Bad machine code: Using an undefined physical register"

[Tim Northover via llvm-commits]

On 26 Jun 2017, at 11:04, Tim Northover via llvm-commits <llvm-commits at lists.llvm.org> wrote:
> I definitely know what the issue is now. I've just about got a patch for it, but I'm trying to compress the reproducer down even more. Not quite sure how it was caused by the commit I pointed at, but I don't think that really matters now.

I think r306318 should do it. I'll keep an eye on the bot.

Tim.