[PATCH] D63753: [Sema] Instead of rejecting C unions with non-trivial fields, detect attempts to destruct/initialize/copy them.

[Akira Hatanaka via Phabricator via cfe-commits]

ahatanak updated this revision to Diff 209565.
ahatanak marked an inline comment as done.
ahatanak added a comment.

Diagnose C union globals that are non-trivial to default-initialize. Add 3 bits to RecordDeclBitfields for default-initialize, destruct, and copy to fast-path checking.


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63753/new/

https://reviews.llvm.org/D63753

Files:
  include/clang/AST/Decl.h
  include/clang/AST/DeclBase.h
  include/clang/AST/Type.h
  include/clang/Basic/DiagnosticSemaKinds.td
  include/clang/Sema/Sema.h
  lib/AST/Type.cpp
  lib/Sema/Sema.cpp
  lib/Sema/SemaDecl.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaType.cpp
  lib/Serialization/ASTReaderDecl.cpp
  lib/Serialization/ASTWriterDecl.cpp
  test/CodeGenObjC/Inputs/strong_in_union.h
  test/CodeGenObjC/strong-in-c-struct.m
  test/PCH/non-trivial-c-union.m
  test/SemaObjC/arc-decls.m
  test/SemaObjC/non-trivial-c-union.m

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