This revision was automatically updated to reflect the committed changes. Closed by commit rL313278: Enable __declspec(selectany) on any platform (authored by Prazek).
Repository: rL LLVM https://reviews.llvm.org/D33852 Files: cfe/trunk/include/clang/Basic/Attr.td cfe/trunk/include/clang/Basic/AttrDocs.td cfe/trunk/test/Sema/attr-selectany.c cfe/trunk/test/SemaCXX/attr-selectany.cpp Index: cfe/trunk/include/clang/Basic/AttrDocs.td =================================================================== --- cfe/trunk/include/clang/Basic/AttrDocs.td +++ cfe/trunk/include/clang/Basic/AttrDocs.td @@ -3192,3 +3192,18 @@ ensure that this class cannot be subclassed. }]; } + + +def SelectAnyDocs : Documentation { + let Category = DocCatType; + let Content = [{ +This attribute appertains to a global symbol, causing it to have a weak +definition ( +`linkonce <https://llvm.org/docs/LangRef.html#linkage-types>`_ +), allowing the linker to select any definition. + +For more information see +`gcc documentation <https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gcc/Microsoft-Windows-Variable-Attributes.html>`_ +or `msvc documentation <https://docs.microsoft.com/pl-pl/cpp/cpp/selectany>`_. +}]; +} Index: cfe/trunk/include/clang/Basic/Attr.td =================================================================== --- cfe/trunk/include/clang/Basic/Attr.td +++ cfe/trunk/include/clang/Basic/Attr.td @@ -2472,9 +2472,9 @@ let Documentation = [DLLImportDocs]; } -def SelectAny : InheritableAttr, TargetSpecificAttr<TargetWindows> { +def SelectAny : InheritableAttr { let Spellings = [Declspec<"selectany">, GCC<"selectany">]; - let Documentation = [Undocumented]; + let Documentation = [SelectAnyDocs]; } def Thread : Attr { Index: cfe/trunk/test/Sema/attr-selectany.c =================================================================== --- cfe/trunk/test/Sema/attr-selectany.c +++ cfe/trunk/test/Sema/attr-selectany.c @@ -1,5 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-win32 -fdeclspec -verify %s // RUN: %clang_cc1 -triple x86_64-mingw32 -verify %s +// RUN: %clang_cc1 -triple x86_64-unknown-linux -verify -fdeclspec %s +// RUN: %clang_cc1 -triple x86_64-win32-macho -verify -fdeclspec %s extern __declspec(selectany) const int x1 = 1; // no warning, const means we need extern in C++ Index: cfe/trunk/test/SemaCXX/attr-selectany.cpp =================================================================== --- cfe/trunk/test/SemaCXX/attr-selectany.cpp +++ cfe/trunk/test/SemaCXX/attr-selectany.cpp @@ -1,4 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-win32 -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s +// RUN: %clang_cc1 -triple x86_64-unknown-linux -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s +// RUN: %clang_cc1 -triple x86_64-win32-macho -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s + // MSVC produces similar diagnostics. __declspec(selectany) void foo() { } // expected-error{{'selectany' can only be applied to data items with external linkage}}
Index: cfe/trunk/include/clang/Basic/AttrDocs.td =================================================================== --- cfe/trunk/include/clang/Basic/AttrDocs.td +++ cfe/trunk/include/clang/Basic/AttrDocs.td @@ -3192,3 +3192,18 @@ ensure that this class cannot be subclassed. }]; } + + +def SelectAnyDocs : Documentation { + let Category = DocCatType; + let Content = [{ +This attribute appertains to a global symbol, causing it to have a weak +definition ( +`linkonce <https://llvm.org/docs/LangRef.html#linkage-types>`_ +), allowing the linker to select any definition. + +For more information see +`gcc documentation <https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gcc/Microsoft-Windows-Variable-Attributes.html>`_ +or `msvc documentation <https://docs.microsoft.com/pl-pl/cpp/cpp/selectany>`_. +}]; +} Index: cfe/trunk/include/clang/Basic/Attr.td =================================================================== --- cfe/trunk/include/clang/Basic/Attr.td +++ cfe/trunk/include/clang/Basic/Attr.td @@ -2472,9 +2472,9 @@ let Documentation = [DLLImportDocs]; } -def SelectAny : InheritableAttr, TargetSpecificAttr<TargetWindows> { +def SelectAny : InheritableAttr { let Spellings = [Declspec<"selectany">, GCC<"selectany">]; - let Documentation = [Undocumented]; + let Documentation = [SelectAnyDocs]; } def Thread : Attr { Index: cfe/trunk/test/Sema/attr-selectany.c =================================================================== --- cfe/trunk/test/Sema/attr-selectany.c +++ cfe/trunk/test/Sema/attr-selectany.c @@ -1,5 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-win32 -fdeclspec -verify %s // RUN: %clang_cc1 -triple x86_64-mingw32 -verify %s +// RUN: %clang_cc1 -triple x86_64-unknown-linux -verify -fdeclspec %s +// RUN: %clang_cc1 -triple x86_64-win32-macho -verify -fdeclspec %s extern __declspec(selectany) const int x1 = 1; // no warning, const means we need extern in C++ Index: cfe/trunk/test/SemaCXX/attr-selectany.cpp =================================================================== --- cfe/trunk/test/SemaCXX/attr-selectany.cpp +++ cfe/trunk/test/SemaCXX/attr-selectany.cpp @@ -1,4 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-win32 -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s +// RUN: %clang_cc1 -triple x86_64-unknown-linux -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s +// RUN: %clang_cc1 -triple x86_64-win32-macho -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s + // MSVC produces similar diagnostics. __declspec(selectany) void foo() { } // expected-error{{'selectany' can only be applied to data items with external linkage}}
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