[PATCH] D86657: Add new hidden option -print-crash-IR that prints out IR that caused opt pipeline to crash

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

The title needs updating for the option name

Btw I just tried this on a very large file with a (real) LLVM crash and it was very slow and I gave up. It's probably from printing the IR after every pass. Perhaps cloning the module via `CloneModule()` and keeping that around might be faster?


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  https://reviews.llvm.org/D86657/new/

https://reviews.llvm.org/D86657