[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.

In D86657#3034561 <https://reviews.llvm.org/D86657#3034561>, @jamieschmeiser wrote:

> I think I am getting confused with llvm-extract --func=<function> which will extract what is needed for a function from a module IR.  However, one could likely use that to get an IR with the necessary addition declarations and then substitute in the IR for the function using this option.  I wonder if it might be possible to use the code in llvm-extract to do that automatically?  Something to think about...

llvm-extract is a bit finnicky, it basically relies on GlobalDCE and has to change function linkage in order to preserve functions.


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https://reviews.llvm.org/D86657