[PATCH] D66364: Diagnose use of _Thread_local as an extension when appropriate

[Aaron Ballman via Phabricator via cfe-commits]

aaron.ballman created this revision.
aaron.ballman added a reviewer: rsmith.
Herald added a project: clang.

We currently accept use of _Thread_local in all C and C++ modes, but we do not issue a warning about it being an extension when used outside of C11 mode. This patch adds the warning and adjusts tests for the fallout.


Repository:
  rC Clang

https://reviews.llvm.org/D66364

Files:
  clang/include/clang/Basic/DiagnosticParseKinds.td
  clang/lib/Parse/ParseDecl.cpp
  clang/lib/Parse/ParseExpr.cpp
  clang/test/PCH/thread-local.cpp
  clang/test/Sema/thread-specifier.c
  clang/test/SemaOpenCLCXX/restricted.cl

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