[PATCH] D147275: [InstCombine] Extend simplifications for `(icmp ({z|s}ext X), C)` where `C` is vector

[Noah Goldstein via Phabricator via llvm-commits]

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Previous logic only applied for `ConstantInt` which misses all vector
cases. New code works for splat/non-splat vectors as well. No change
to the underlying simplifications.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D147275

Files:
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/test/Transforms/InstSimplify/vec-icmp-of-cast.ll

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