[PATCH] D70749: [InstCombine] do not insert nonnull assumption for undef

[Bob Haarman via Phabricator via llvm-commits]

inglorion added a comment.

It seems we have a variety of opinions on the right way to avoid the problem here, and many of them seem to require a fair bit of work. I'm all for getting to better semantics that avoid the problem we're seeing, but agreeing on a course of action, making the changes, testing it, and reviewing it seems like it would take a while. Meanwhile, we have a compiler that miscompiles cout << -10.0; Any chance we can get this change in to stop that from happening while we work on a better fix?


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  https://reviews.llvm.org/D70749/new/

https://reviews.llvm.org/D70749