[PATCH] D76931: [ValueLattice] Distinguish between constant ranges with/without undef.

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

> If branching on poison is UB, that requires freezing x.

Err, I meant "branching on undef".


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D76931/new/

https://reviews.llvm.org/D76931