Update: Vassil and I have dug into this a bit offline. It looks like the
root cause is a likely-pre-existing bug where we somehow import a default
constructor for a class from a module but don't set the "has a default
constructor" flag on the class definition.
On Fri, May 13, 2016 at 2:54 AM, Vassil Vassilev <v.g.vassi...@gmail.com>
wrote:
> Hi Richard,
> I believe this broke our modules builds. Last successful one was with
> r269388 and the current with r269389 fails with:
>
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/type_traits:69:12:
> error: constructor cannot be redeclared
> struct integral_constant
> ^
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/type_traits:69:12:
> note: previous implicit declaration is here
> struct integral_constant
> ^
> /mnt/build/workspace/root-nightly-master-cxxmodules/BUILDTYPE/Release/COMPILER/native/LABEL/sft-fedora-1/clang_build_269398/ROOT/src/core/meta/src/TGenericClassInfo.cxx:18:10:
> fatal error: could not build module 'TCollectionProxyInfo.h'
> #include "TCollectionProxyInfo.h"
> ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
> 2 errors generated.
>
> and
>
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/new:99:10:
> error: multiple overloads of 'nothrow_t' instantiate to the same signature
> 'void ()'
> struct nothrow_t { };
> ^
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/bits/alloc_traits.h:253:8:
> note: in instantiation of function template specialization
> '__gnu_cxx::new_allocator<std::pair<int, int> >::construct<std::pair<int,
> int>, const std::pair<int, int> &>' requested here
> { __a.construct(__p, std::forward<_Args>(__args)...); }
> ^
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/bits/alloc_traits.h:399:4:
> note: in instantiation of function template specialization
> 'std::allocator_traits<std::allocator<std::pair<int, int> >
> >::_S_construct<std::pair<int, int>, const std::pair<int, int> &>' requested
> here
> { _S_construct(__a, __p, std::forward<_Args>(__args)...); }
> ^
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/bits/stl_vector.h:917:21:
> note: in instantiation of function template specialization
> 'std::allocator_traits<std::allocator<std::pair<int, int> >
> >::construct<std::pair<int, int>, const std::pair<int, int> &>' requested here
> _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
> ^
> /mnt/build/workspace/root-nightly-master-cxxmodules/BUILDTYPE/Release/COMPILER/native/LABEL/sft-fedora-1/clang_build_269398/ROOT/src/core/meta/src/TSchemaRule.cxx:873:21:
> note: in instantiation of member function 'std::vector<std::pair<int, int>,
> std::allocator<std::pair<int, int> > >::push_back' requested here
> fVersionVect->push_back( verpair );
> ^
> /usr/lib/gcc/x86_64-redhat-linux/4.9.2/../../../../include/c++/4.9.2/new:99:10:
> note: previous implicit declaration is here
> struct nothrow_t { };
>
>
> Shall I start reducing the issues one by one or we can revert this patch?
> Vassil On 13/05/16 08:47, Richard Smith via cfe-commits wrote:
>
> Author: rsmith
> Date: Fri May 13 01:47:56 2016
> New Revision: 269398
>
> URL: http://llvm.org/viewvc/llvm-project?rev=269398&view=rev
> Log:
> Add support for derived class special members hiding functions brought in from
> a base class via a using-declaration. If a class has a using-declaration
> declaring either a constructor or an assignment operator, eagerly declare its
> special members in case they need to displace a shadow declaration from a
> using-declaration.
>
> Modified:
> cfe/trunk/include/clang/AST/DeclCXX.h
> cfe/trunk/include/clang/Sema/Sema.h
> cfe/trunk/lib/AST/ASTImporter.cpp
> cfe/trunk/lib/AST/DeclCXX.cpp
> cfe/trunk/lib/Sema/SemaDeclCXX.cpp
> cfe/trunk/lib/Serialization/ASTReaderDecl.cpp
> cfe/trunk/lib/Serialization/ASTWriter.cpp
> cfe/trunk/test/CXX/dcl.dcl/basic.namespace/namespace.udecl/p12.cpp
> cfe/trunk/test/SemaCUDA/implicit-member-target.cu
> cfe/trunk/test/SemaCXX/constructor-recovery.cpp
>
> Modified: cfe/trunk/include/clang/AST/DeclCXX.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclCXX.h?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/include/clang/AST/DeclCXX.h (original)
> +++ cfe/trunk/include/clang/AST/DeclCXX.h Fri May 13 01:47:56 2016
> @@ -382,6 +382,14 @@ class CXXRecordDecl : public RecordDecl
> /// provided default ctor also doesn't have an in-class initializer.
> unsigned HasUninitializedFields : 1;
>
> + /// \brief True if there are any member using-declarations that inherit
> + /// constructors from a base class.
> + unsigned HasInheritedConstructor : 1;
> +
> + /// \brief True if there are any member using-declarations named
> + /// 'operator='.
> + unsigned HasInheritedAssignment : 1;
> +
> /// \brief These flags are \c true if a defaulted corresponding special
> /// member can't be fully analyzed without performing overload
> resolution.
> /// @{
> @@ -1308,6 +1316,18 @@ public:
> return data().HasNonLiteralTypeFieldsOrBases;
> }
>
> + /// \brief Determine whether this class has a using-declaration that names
> + /// a base class constructor.
> + bool hasInheritedConstructor() const {
> + return data().HasInheritedConstructor;
> + }
> +
> + /// \brief Determine whether this class has a using-declaration that names
> + /// a base class assignment operator.
> + bool hasInheritedAssignment() const {
> + return data().HasInheritedAssignment;
> + }
> +
> /// \brief Determine whether this class is considered trivially copyable
> per
> /// (C++11 [class]p6).
> bool isTriviallyCopyable() const;
>
> Modified: cfe/trunk/include/clang/Sema/Sema.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Sema.h?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/include/clang/Sema/Sema.h (original)
> +++ cfe/trunk/include/clang/Sema/Sema.h Fri May 13 01:47:56 2016
> @@ -4540,6 +4540,9 @@ public:
> /// class.
> void ForceDeclarationOfImplicitMembers(CXXRecordDecl *Class);
>
> + /// \brief Check a completed declaration of an implicit special member.
> + void CheckImplicitSpecialMemberDeclaration(Scope *S, FunctionDecl *FD);
> +
> /// \brief Determine whether the given function is an implicitly-deleted
> /// special member function.
> bool isImplicitlyDeleted(FunctionDecl *FD);
>
> Modified: cfe/trunk/lib/AST/ASTImporter.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTImporter.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/lib/AST/ASTImporter.cpp (original)
> +++ cfe/trunk/lib/AST/ASTImporter.cpp Fri May 13 01:47:56 2016
> @@ -2115,6 +2115,8 @@ bool ASTNodeImporter::ImportDefinition(R
> ToData.HasUninitializedReferenceMember
> = FromData.HasUninitializedReferenceMember;
> ToData.HasUninitializedFields = FromData.HasUninitializedFields;
> + ToData.HasInheritedConstructor = FromData.HasInheritedConstructor;
> + ToData.HasInheritedAssignment = FromData.HasInheritedAssignment;
> ToData.NeedOverloadResolutionForMoveConstructor
> = FromData.NeedOverloadResolutionForMoveConstructor;
> ToData.NeedOverloadResolutionForMoveAssignment
>
> Modified: cfe/trunk/lib/AST/DeclCXX.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/DeclCXX.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/lib/AST/DeclCXX.cpp (original)
> +++ cfe/trunk/lib/AST/DeclCXX.cpp Fri May 13 01:47:56 2016
> @@ -53,6 +53,7 @@ CXXRecordDecl::DefinitionData::Definitio
> HasPublicFields(false), HasMutableFields(false),
> HasVariantMembers(false),
> HasOnlyCMembers(true), HasInClassInitializer(false),
> HasUninitializedReferenceMember(false), HasUninitializedFields(false),
> + HasInheritedConstructor(false), HasInheritedAssignment(false),
> NeedOverloadResolutionForMoveConstructor(false),
> NeedOverloadResolutionForMoveAssignment(false),
> NeedOverloadResolutionForDestructor(false),
> @@ -955,6 +956,15 @@ void CXXRecordDecl::addedMember(Decl *D)
> data().Conversions.get(Ctx).addDecl(Ctx, Shadow, Shadow->getAccess());
> }
> }
> +
> + if (UsingDecl *Using = dyn_cast<UsingDecl>(D)) {
> + if (Using->getDeclName().getNameKind() ==
> + DeclarationName::CXXConstructorName)
> + data().HasInheritedConstructor = true;
> +
> + if (Using->getDeclName().getCXXOverloadedOperator() == OO_Equal)
> + data().HasInheritedAssignment = true;
> + }
> }
>
> void CXXRecordDecl::finishedDefaultedOrDeletedMember(CXXMethodDecl *D) {
>
> Modified: cfe/trunk/lib/Sema/SemaDeclCXX.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDeclCXX.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/lib/Sema/SemaDeclCXX.cpp (original)
> +++ cfe/trunk/lib/Sema/SemaDeclCXX.cpp Fri May 13 01:47:56 2016
> @@ -6455,20 +6455,28 @@ void Sema::AddImplicitlyDeclaredMembersT
> if (!ClassDecl->hasUserDeclaredConstructor())
> ++ASTContext::NumImplicitDefaultConstructors;
>
> + // If this class inherited any constructors, declare the default
> constructor
> + // now in case it displaces one from a base class.
> + if (ClassDecl->needsImplicitDefaultConstructor() &&
> + ClassDecl->hasInheritedConstructor())
> + DeclareImplicitDefaultConstructor(ClassDecl);
> +
> if (!ClassDecl->hasUserDeclaredCopyConstructor()) {
> ++ASTContext::NumImplicitCopyConstructors;
>
> // If the properties or semantics of the copy constructor couldn't be
> // determined while the class was being declared, force a declaration
> // of it now.
> - if (ClassDecl->needsOverloadResolutionForCopyConstructor())
> + if (ClassDecl->needsOverloadResolutionForCopyConstructor() ||
> + ClassDecl->hasInheritedConstructor())
> DeclareImplicitCopyConstructor(ClassDecl);
> }
>
> if (getLangOpts().CPlusPlus11 &&
> ClassDecl->needsImplicitMoveConstructor()) {
> ++ASTContext::NumImplicitMoveConstructors;
>
> - if (ClassDecl->needsOverloadResolutionForMoveConstructor())
> + if (ClassDecl->needsOverloadResolutionForMoveConstructor() ||
> + ClassDecl->hasInheritedConstructor())
> DeclareImplicitMoveConstructor(ClassDecl);
> }
>
> @@ -6480,7 +6488,8 @@ void Sema::AddImplicitlyDeclaredMembersT
> // it shows up in the right place in the vtable and that we diagnose
> // problems with the implicit exception specification.
> if (ClassDecl->isDynamicClass() ||
> - ClassDecl->needsOverloadResolutionForCopyAssignment())
> + ClassDecl->needsOverloadResolutionForCopyAssignment() ||
> + ClassDecl->hasInheritedAssignment())
> DeclareImplicitCopyAssignment(ClassDecl);
> }
>
> @@ -6489,7 +6498,8 @@ void Sema::AddImplicitlyDeclaredMembersT
>
> // Likewise for the move assignment operator.
> if (ClassDecl->isDynamicClass() ||
> - ClassDecl->needsOverloadResolutionForMoveAssignment())
> + ClassDecl->needsOverloadResolutionForMoveAssignment() ||
> + ClassDecl->hasInheritedAssignment())
> DeclareImplicitMoveAssignment(ClassDecl);
> }
>
> @@ -8898,10 +8908,11 @@ namespace {
> struct DeclaringSpecialMember {
> Sema &S;
> Sema::SpecialMemberDecl D;
> + Sema::ContextRAII SavedContext;
> bool WasAlreadyBeingDeclared;
>
> DeclaringSpecialMember(Sema &S, CXXRecordDecl *RD, Sema::CXXSpecialMember
> CSM)
> - : S(S), D(RD, CSM) {
> + : S(S), D(RD, CSM), SavedContext(S, RD) {
> WasAlreadyBeingDeclared =
> !S.SpecialMembersBeingDeclared.insert(D).second;
> if (WasAlreadyBeingDeclared)
> // This almost never happens, but if it does, ensure that our cache
> @@ -8923,6 +8934,20 @@ struct DeclaringSpecialMember {
> };
> }
>
> +void Sema::CheckImplicitSpecialMemberDeclaration(Scope *S, FunctionDecl *FD)
> {
> + // Look up any existing declarations, but don't trigger declaration of all
> + // implicit special members with this name.
> + DeclarationName Name = FD->getDeclName();
> + LookupResult R(*this, Name, SourceLocation(), LookupOrdinaryName,
> + ForRedeclaration);
> + for (auto *D : FD->getParent()->lookup(Name))
> + if (auto *Acceptable = R.getAcceptableDecl(D))
> + R.addDecl(Acceptable);
> + R.resolveKind();
> +
> + CheckFunctionDeclaration(S, FD, R, /*IsExplicitSpecialization*/false);
> +}
> +
> CXXConstructorDecl *Sema::DeclareImplicitDefaultConstructor(
> CXXRecordDecl
> *ClassDecl) {
> // C++ [class.ctor]p5:
> @@ -8971,13 +8996,16 @@ CXXConstructorDecl *Sema::DeclareImplici
> // constructors is easy to compute.
> DefaultCon->setTrivial(ClassDecl->hasTrivialDefaultConstructor());
>
> - if (ShouldDeleteSpecialMember(DefaultCon, CXXDefaultConstructor))
> - SetDeclDeleted(DefaultCon, ClassLoc);
> -
> // Note that we have declared this constructor.
> ++ASTContext::NumImplicitDefaultConstructorsDeclared;
>
> - if (Scope *S = getScopeForContext(ClassDecl))
> + Scope *S = getScopeForContext(ClassDecl);
> + CheckImplicitSpecialMemberDeclaration(S, DefaultCon);
> +
> + if (ShouldDeleteSpecialMember(DefaultCon, CXXDefaultConstructor))
> + SetDeclDeleted(DefaultCon, ClassLoc);
> +
> + if (S)
> PushOnScopeChains(DefaultCon, S, false);
> ClassDecl->addDecl(DefaultCon);
>
> @@ -9433,20 +9461,21 @@ CXXDestructorDecl *Sema::DeclareImplicit
> FunctionProtoType::ExtProtoInfo EPI = getImplicitMethodEPI(*this,
> Destructor);
> Destructor->setType(Context.getFunctionType(Context.VoidTy, None, EPI));
>
> - AddOverriddenMethods(ClassDecl, Destructor);
> -
> // We don't need to use SpecialMemberIsTrivial here; triviality for
> // destructors is easy to compute.
> Destructor->setTrivial(ClassDecl->hasTrivialDestructor());
>
> - if (ShouldDeleteSpecialMember(Destructor, CXXDestructor))
> - SetDeclDeleted(Destructor, ClassLoc);
> -
> // Note that we have declared this destructor.
> ++ASTContext::NumImplicitDestructorsDeclared;
>
> + Scope *S = getScopeForContext(ClassDecl);
> + CheckImplicitSpecialMemberDeclaration(S, Destructor);
> +
> + if (ShouldDeleteSpecialMember(Destructor, CXXDestructor))
> + SetDeclDeleted(Destructor, ClassLoc);
> +
> // Introduce this destructor into its scope.
> - if (Scope *S = getScopeForContext(ClassDecl))
> + if (S)
> PushOnScopeChains(Destructor, S, false);
> ClassDecl->addDecl(Destructor);
>
> @@ -10147,20 +10176,21 @@ CXXMethodDecl *Sema::DeclareImplicitCopy
> nullptr);
> CopyAssignment->setParams(FromParam);
>
> - AddOverriddenMethods(ClassDecl, CopyAssignment);
> -
> CopyAssignment->setTrivial(
> ClassDecl->needsOverloadResolutionForCopyAssignment()
> ? SpecialMemberIsTrivial(CopyAssignment, CXXCopyAssignment)
> : ClassDecl->hasTrivialCopyAssignment());
>
> - if (ShouldDeleteSpecialMember(CopyAssignment, CXXCopyAssignment))
> - SetDeclDeleted(CopyAssignment, ClassLoc);
> -
> // Note that we have added this copy-assignment operator.
> ++ASTContext::NumImplicitCopyAssignmentOperatorsDeclared;
>
> - if (Scope *S = getScopeForContext(ClassDecl))
> + Scope *S = getScopeForContext(ClassDecl);
> + CheckImplicitSpecialMemberDeclaration(S, CopyAssignment);
> +
> + if (ShouldDeleteSpecialMember(CopyAssignment, CXXCopyAssignment))
> + SetDeclDeleted(CopyAssignment, ClassLoc);
> +
> + if (S)
> PushOnScopeChains(CopyAssignment, S, false);
> ClassDecl->addDecl(CopyAssignment);
>
> @@ -10538,22 +10568,23 @@ CXXMethodDecl *Sema::DeclareImplicitMove
> nullptr);
> MoveAssignment->setParams(FromParam);
>
> - AddOverriddenMethods(ClassDecl, MoveAssignment);
> -
> MoveAssignment->setTrivial(
> ClassDecl->needsOverloadResolutionForMoveAssignment()
> ? SpecialMemberIsTrivial(MoveAssignment, CXXMoveAssignment)
> : ClassDecl->hasTrivialMoveAssignment());
>
> + // Note that we have added this copy-assignment operator.
> + ++ASTContext::NumImplicitMoveAssignmentOperatorsDeclared;
> +
> + Scope *S = getScopeForContext(ClassDecl);
> + CheckImplicitSpecialMemberDeclaration(S, MoveAssignment);
> +
> if (ShouldDeleteSpecialMember(MoveAssignment, CXXMoveAssignment)) {
> ClassDecl->setImplicitMoveAssignmentIsDeleted();
> SetDeclDeleted(MoveAssignment, ClassLoc);
> }
>
> - // Note that we have added this copy-assignment operator.
> - ++ASTContext::NumImplicitMoveAssignmentOperatorsDeclared;
> -
> - if (Scope *S = getScopeForContext(ClassDecl))
> + if (S)
> PushOnScopeChains(MoveAssignment, S, false);
> ClassDecl->addDecl(MoveAssignment);
>
> @@ -10979,13 +11010,16 @@ CXXConstructorDecl *Sema::DeclareImplici
> ? SpecialMemberIsTrivial(CopyConstructor, CXXCopyConstructor)
> : ClassDecl->hasTrivialCopyConstructor());
>
> - if (ShouldDeleteSpecialMember(CopyConstructor, CXXCopyConstructor))
> - SetDeclDeleted(CopyConstructor, ClassLoc);
> -
> // Note that we have declared this constructor.
> ++ASTContext::NumImplicitCopyConstructorsDeclared;
>
> - if (Scope *S = getScopeForContext(ClassDecl))
> + Scope *S = getScopeForContext(ClassDecl);
> + CheckImplicitSpecialMemberDeclaration(S, CopyConstructor);
> +
> + if (ShouldDeleteSpecialMember(CopyConstructor, CXXCopyConstructor))
> + SetDeclDeleted(CopyConstructor, ClassLoc);
> +
> + if (S)
> PushOnScopeChains(CopyConstructor, S, false);
> ClassDecl->addDecl(CopyConstructor);
>
> @@ -11156,15 +11190,18 @@ CXXConstructorDecl *Sema::DeclareImplici
> ? SpecialMemberIsTrivial(MoveConstructor, CXXMoveConstructor)
> : ClassDecl->hasTrivialMoveConstructor());
>
> + // Note that we have declared this constructor.
> + ++ASTContext::NumImplicitMoveConstructorsDeclared;
> +
> + Scope *S = getScopeForContext(ClassDecl);
> + CheckImplicitSpecialMemberDeclaration(S, MoveConstructor);
> +
> if (ShouldDeleteSpecialMember(MoveConstructor, CXXMoveConstructor)) {
> ClassDecl->setImplicitMoveConstructorIsDeleted();
> SetDeclDeleted(MoveConstructor, ClassLoc);
> }
>
> - // Note that we have declared this constructor.
> - ++ASTContext::NumImplicitMoveConstructorsDeclared;
> -
> - if (Scope *S = getScopeForContext(ClassDecl))
> + if (S)
> PushOnScopeChains(MoveConstructor, S, false);
> ClassDecl->addDecl(MoveConstructor);
>
>
> Modified: cfe/trunk/lib/Serialization/ASTReaderDecl.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderDecl.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/lib/Serialization/ASTReaderDecl.cpp (original)
> +++ cfe/trunk/lib/Serialization/ASTReaderDecl.cpp Fri May 13 01:47:56 2016
> @@ -1466,6 +1466,8 @@ void ASTDeclReader::ReadCXXDefinitionDat
> Data.HasInClassInitializer = Record[Idx++];
> Data.HasUninitializedReferenceMember = Record[Idx++];
> Data.HasUninitializedFields = Record[Idx++];
> + Data.HasInheritedConstructor = Record[Idx++];
> + Data.HasInheritedAssignment = Record[Idx++];
> Data.NeedOverloadResolutionForMoveConstructor = Record[Idx++];
> Data.NeedOverloadResolutionForMoveAssignment = Record[Idx++];
> Data.NeedOverloadResolutionForDestructor = Record[Idx++];
> @@ -1593,6 +1595,8 @@ void ASTDeclReader::MergeDefinitionData(
> MATCH_FIELD(HasInClassInitializer)
> MATCH_FIELD(HasUninitializedReferenceMember)
> MATCH_FIELD(HasUninitializedFields)
> + MATCH_FIELD(HasInheritedConstructor)
> + MATCH_FIELD(HasInheritedAssignment)
> MATCH_FIELD(NeedOverloadResolutionForMoveConstructor)
> MATCH_FIELD(NeedOverloadResolutionForMoveAssignment)
> MATCH_FIELD(NeedOverloadResolutionForDestructor)
>
> Modified: cfe/trunk/lib/Serialization/ASTWriter.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriter.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/lib/Serialization/ASTWriter.cpp (original)
> +++ cfe/trunk/lib/Serialization/ASTWriter.cpp Fri May 13 01:47:56 2016
> @@ -5489,6 +5489,8 @@ void ASTRecordWriter::AddCXXDefinitionDa
> Record->push_back(Data.HasInClassInitializer);
> Record->push_back(Data.HasUninitializedReferenceMember);
> Record->push_back(Data.HasUninitializedFields);
> + Record->push_back(Data.HasInheritedConstructor);
> + Record->push_back(Data.HasInheritedAssignment);
> Record->push_back(Data.NeedOverloadResolutionForMoveConstructor);
> Record->push_back(Data.NeedOverloadResolutionForMoveAssignment);
> Record->push_back(Data.NeedOverloadResolutionForDestructor);
>
> Modified: cfe/trunk/test/CXX/dcl.dcl/basic.namespace/namespace.udecl/p12.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.dcl/basic.namespace/namespace.udecl/p12.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/test/CXX/dcl.dcl/basic.namespace/namespace.udecl/p12.cpp
> (original)
> +++ cfe/trunk/test/CXX/dcl.dcl/basic.namespace/namespace.udecl/p12.cpp Fri
> May 13 01:47:56 2016
> @@ -1,3 +1,5 @@
> +// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
> +// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
> // RUN: %clang_cc1 -fsyntax-only -verify %s
>
> // C++03 [namespace.udecl]p12:
> @@ -161,3 +163,33 @@ namespace test4 {
> d.bar<int>(3); // expected-error {{'bar' is a protected member}}
> }
> }
> +
> +namespace test5 {
> + struct Derived;
> + struct Base {
> + void operator=(const Derived&);
> + };
> + struct Derived : Base {
> + // Hidden by implicit derived class operator.
> + using Base::operator=;
> + };
> + void f(Derived d) {
> + d = d;
> + }
> +}
> +
> +#if __cplusplus >= 201103L
> +namespace test6 {
> + struct Derived;
> + struct Base {
> + void operator=(Derived&&);
> + };
> + struct Derived : Base {
> + // Hidden by implicit derived class operator.
> + using Base::operator=;
> + };
> + void f(Derived d) {
> + d = Derived();
> + }
> +}
> +#endif
>
> Modified: cfe/trunk/test/SemaCUDA/implicit-member-target.cu
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCUDA/implicit-member-target.cu?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/test/SemaCUDA/implicit-member-target.cu (original)
> +++ cfe/trunk/test/SemaCUDA/implicit-member-target.cu Fri May 13 01:47:56 2016
> @@ -60,13 +60,14 @@ struct A3_with_device_ctors {
>
> struct B3_with_implicit_ctors : A3_with_device_ctors {
> };
> +// expected-note@-2 2{{call to __device__ function from __host__ function}}
> +// expected-note@-3 {{default constructor}}
>
> -// expected-note@-3 {{copy constructor of 'B3_with_implicit_ctors' is
> implicitly deleted}}
>
> void hostfoo3() {
> B3_with_implicit_ctors b; // this is OK because the inferred default ctor
> // here is __host__
> - B3_with_implicit_ctors b2 = b; // expected-error {{call to
> implicitly-deleted copy constructor}}
> + B3_with_implicit_ctors b2 = b; // expected-error {{no matching
> constructor}}
>
> }
>
>
> Modified: cfe/trunk/test/SemaCXX/constructor-recovery.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/constructor-recovery.cpp?rev=269398&r1=269397&r2=269398&view=diff
> ==============================================================================
> --- cfe/trunk/test/SemaCXX/constructor-recovery.cpp (original)
> +++ cfe/trunk/test/SemaCXX/constructor-recovery.cpp Fri May 13 01:47:56 2016
> @@ -1,9 +1,9 @@
> // RUN: %clang_cc1 -fsyntax-only -verify %s
>
> -struct C {
> +struct C { // expected-note 1+{{candidate}}
> virtual C() = 0; // expected-error{{constructor cannot be declared
> 'virtual'}}
> };
>
> void f() {
> - C c;
> + C c; // expected-error {{no matching constructor}}
> }
>
>
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>
>
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