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...nk this worth doing. We should be using the new diagnostic handler on the LLVMContext, and most of LLVM should have a way of returning without exploding. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141125/b22d13e9/attachment.html>

The fundamental problem is that IR has never been treated as "user input" before. It has always been an ephemeral format, and if some component comes along and sees something it doesn't recognize, that is ipso facto a compiler bug, not a user input error, and it's perfectly okay to crash on a compiler bug. Changing that fundamental assumption would be pretty pervasive. I will