[PATCH] D123962: [InstCombine] fold freeze of partial undef/poison vector constants

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

What about

> For vector constants with some undef elements, wouldn't we be better off picking an existing (non-undef) vector element? That would be especially profitable if we can produce a splat vector constant.

?

I still think that would make more sense for the vector case.


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