[PATCH] D142687: [Local] Don't keep K's range even if K dominates J

[luxufan via Phabricator via llvm-commits]

StephenFan created this revision.
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Since D141386 <https://reviews.llvm.org/D141386> has changed the return value of !range from IUB to poison,
metadata !range shouldn't be preserved even if K dominates J.

If this patch was accepted, I plan to adjust metadata !nonnull as well.
BTW, I found that metadata !noundef is not handled in combineMetadata,
is this intentional?


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142687

Files:
  llvm/lib/Transforms/Utils/Local.cpp
  llvm/test/Transforms/GVN/range.ll
  llvm/test/Transforms/InstCombine/load-combine-metadata.ll
  llvm/test/Transforms/JumpThreading/thread-loads.ll
  llvm/test/Transforms/NewGVN/range.ll

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