[PATCH] D88368: [AddressSanitizer] Copy type metadata to prevent miscompilation

[Dominic Chen via Phabricator via llvm-commits]

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When ASan and e.g. Dead Virtual Function Elimination are enabled, the
latter will rely on type metadata to determine if certain virtual calls can be
removed. However, ASan currently does not copy type metadata, which can cause
virtual function calls to be incorrectly removed.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D88368

Files:
  llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
  llvm/test/Instrumentation/AddressSanitizer/debug_info.ll

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