[PATCH] D150769: [SelectionDAG][computeKnownBits]: Move ISD::ADD/ISD::SUB into their own cases

[Alexander Kornienko via Phabricator via llvm-commits]

alexfh added a comment.

In D150769#4371343 <https://reviews.llvm.org/D150769#4371343>, @nikic wrote:

> @alexfh Thanks for the report, I've reverted the change for now.
>
> This patch has exposed a pre-existing miscompile in integer legalization. ...

Thanks for the quick reaction! I've verified that the revert actually fixes the original problem we've seen.


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  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D150769/new/

https://reviews.llvm.org/D150769