[PATCH] D32285: [InstCombineCasts] Fix checks in sext->lshr->trunc pattern.

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

Note - Alive is very helpful to check that we're not either miscompiling or missing optimizations:
http://rise4fun.com/Alive/2I


https://reviews.llvm.org/D32285