[PATCH] D124098: Don't replace Undef with null value for Constants

[Brock Wyma via Phabricator via llvm-commits]

bwyma added a comment.

In a similar fashion to how instructions are handled according to Delete an IR-level instruction <https://llvm.org/docs/HowToUpdateDebugInfo.html>, when a constant is destroyed and cannot be RAUW'd, updating the debug information uses of the constant to undef seems like the correct approach. LGTM.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D124098/new/

https://reviews.llvm.org/D124098