[all-commits] [llvm/llvm-project] 00f9ef: [C] Modify -Wdefault-const-init (#137961)

[Aaron Ballman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 00f9ef282c7482754a0fea497417604d1deca9fa
      https://github.com/llvm/llvm-project/commit/00f9ef282c7482754a0fea497417604d1deca9fa
  Author: Aaron Ballman <aaron at aaronballman.com>
  Date:   2025-05-01 (Thu, 01 May 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/DiagnosticGroups.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/Sema/Sema.cpp
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaInit.cpp
    M clang/test/Sema/warn-default-const-init.c

  Log Message:
  -----------
  [C] Modify -Wdefault-const-init (#137961)

Post-commit review feedback on
https://github.com/llvm/llvm-project/pull/137166 raised a concern from
the Linux kernel about wanting to silence the new diagnostic when the
uninitialized object is a const member of a structure. These members can
be initialized later if the containing object is non-const, such as
through a call to memset, for example.

This splits the diagnostic groups into:
```
-Wc++-compat
  -Wdefault-const-init
    -Wdefault-const-init-field
    -Wdefault-const-init-var
    -Wdefault-const-init-unsafe
      -Wdefault-const-init-field-unsafe
      -Wdefault-const-init-var-unsafe
```

---------

Co-authored-by: Mariya Podchishchaeva <mariya.podchishchaeva at intel.com>



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