[PATCH] D111846: [LV] Drop NUW/NSW flags from scalarized instructions that need predication

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

In D111846#3073547 <https://reviews.llvm.org/D111846#3073547>, @dcaballe wrote:

> I've been playing with this further and I can't find a way to expose the problem with FP. If anybody could provide a test case, that would be helpful, or maybe any idea that I can try. All my attempts end up being simplified by passes before LV.

I'm not quite sure it is reasonable to rely on other passes to prevent correctness issues in some other pass.
Does it not reproduce with a manually-written IR that only runs LV pass?


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https://reviews.llvm.org/D111846