[all-commits] [llvm/llvm-project] cec486: [APINotes] Reduce memory footprint for Obj-C/C++ c...

[Egor Zhdan via All-commits]

  Branch: refs/heads/users/egorzhdan/apinotes-contexttablekey
  Home:   https://github.com/llvm/llvm-project
  Commit: cec486ee4a00677c143ee70f4f4b5ef6e6c4f3ca
      https://github.com/llvm/llvm-project/commit/cec486ee4a00677c143ee70f4f4b5ef6e6c4f3ca
  Author: Egor Zhdan <e_zhdan at apple.com>
  Date:   2024-07-17 (Wed, 17 Jul 2024)

  Changed paths:
    M clang/lib/APINotes/APINotesFormat.h
    M clang/lib/APINotes/APINotesReader.cpp
    M clang/lib/APINotes/APINotesWriter.cpp

  Log Message:
  -----------
  [APINotes] Reduce memory footprint for Obj-C/C++ contexts

We were storing extraneous data for certain Objective-C/C++ entities. Specifically, for declarations that can be nested in another context (such as functions) we were storing the kind of the parent context in addition to its ID. The ID is always sufficient.

This removes the logically incorrect usages of `ContextTableKey` that don't actually describe a context, but rather describe a single declaration. This introduces `SingleDeclTableKey` to store that kind of entities in a more compact and reasonable way.



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