[PATCH] D108408: [InstCombine] Transform X == 0 ? 0 : X * Y --> X * freeze(Y).

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

1. what's wrong with vectors?
2. can't we preserve no-wrap flags?
3. for vectors, what if some element is not zero but undef? (see ` Constant::mergeUndefsWith()`)


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  https://reviews.llvm.org/D108408/new/

https://reviews.llvm.org/D108408