[PATCH] D80714: [StatepointLowering] Handle UNDEF gc values.

[Denis Antrushin via Phabricator via llvm-commits]

dantrushin updated this revision to Diff 267608.
dantrushin added a comment.

Updated patch to handle UNDEF unconditionally.

By the way, I was following this comment in InstCombineCalls.cpp:

  // Undef is undef, even after relocation.
  // TODO: provide a hook for this in GCStrategy.  This is clearly legal for
  // most practical collectors, but there was discussion in the review thread
  // about whether it was legal for all possible collectors.

Is it not relevant anymore?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80714/new/

https://reviews.llvm.org/D80714

Files:
  llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp
  llvm/test/CodeGen/X86/statepoint-uniqueing.ll

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