[PATCH] D157187: [InstCombine] Propagate the nsw for instruction neg-sub

[Nikita Popov via Phabricator via llvm-commits]

nikic requested changes to this revision.
nikic added a comment.
This revision now requires changes to proceed.

I'm going to implement this myself. We need something along these lines, just with full proofs and test coverage: https://gist.github.com/nikic/07bfd88af3607cdb4ba84bdaf299b07f


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https://reviews.llvm.org/D157187