[all-commits] [llvm/llvm-project] 3315f0: [Serialization] Check for stack exhaustion when re...

[Ilya Biryukov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3315f0a2227b960265b9ed699e1ad33cdc5d3b65
      https://github.com/llvm/llvm-project/commit/3315f0a2227b960265b9ed699e1ad33cdc5d3b65
  Author: Ilya Biryukov <ibiryukov at google.com>
  Date:   2024-06-03 (Mon, 03 Jun 2024)

  Changed paths:
    M clang/include/clang/Serialization/ASTReader.h
    M clang/lib/Serialization/ASTReader.cpp
    M clang/lib/Serialization/ASTReaderDecl.cpp

  Log Message:
  -----------
  [Serialization] Check for stack exhaustion when reading declarations (#79875)

Particular example that lead to this is a very long chain of
`UsingShadowDecl`s that we hit in our codebase in generated code.

To avoid that, check for stack exhaustion when deserializing the
declaration. At that point, we can point to source location of a
particular declaration that is being deserialized.



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