[PATCH] D141251: Replace un-demanded values with undef in BDCE.

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

Agree with @nlopes. I think we should just drop the FIXME here and explain why we're using zero. Using `freeze undef` is unlikely to be worthwhile, especially as it will get folded to `0` most of the time anyway.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D141251/new/

https://reviews.llvm.org/D141251