steakhal added a comment.

In D97849#2600201 <https://reviews.llvm.org/D97849#2600201>, @aaron.ballman 
wrote:

> This looks reasonable to me (good catch!), but is there a way for us to add a 
> regression test for it?

I'm not sure if it's possible to write a test for deterministically 
demonstrating the bug - which is a non-deterministic crash.
So, even if we would have a test case, that would not catch the regression 
deterministically.
We could include the minimal reproducer for CTU analysis - the way we observed 
and tracked down this crash.

AFAIK, it did not reproduce with memory sanitizers.


Repository:
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