[PATCH] D37195: [InstCombine] Teach canEvaluateTruncated and EvaluateInDifferentType to handle expression tree with multi-used nodes.

[Sanjay Patel via Phabricator via llvm-commits]

spatel added reviewers: davide, dberlin, majnemer.
spatel added a comment.

I didn't look closely at the implementation, but extending instcombine with visitation/evaluation maps may cross the boundary of what instcombine should handle. Adding some more potential reviewers.


https://reviews.llvm.org/D37195