1 files changed, 202 insertions, 0 deletions
diff --git a/test/CXX/special/class.copy/p25-0x.cpp b/test/CXX/special/class.copy/p25-0x.cpp
new file mode 100644
index 000000000000..c7224aea9590
--- /dev/null
+++ b/test/CXX/special/class.copy/p25-0x.cpp
@@ -0,0 +1,202 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s
+
+// expected-no-diagnostics
+
+template<typename T, bool B> struct trivially_assignable_check {
+  static_assert(B == __has_trivial_assign(T), "");
+  static_assert(B == __is_trivially_assignable(T&, T), "");
+  static_assert(B == __is_trivially_assignable(T&, const T &), "");
+  static_assert(B == __is_trivially_assignable(T&, T &&), "");
+  static_assert(B == __is_trivially_assignable(T&&, T), "");
+  static_assert(B == __is_trivially_assignable(T&&, const T &), "");
+  static_assert(B == __is_trivially_assignable(T&&, T &&), "");
+  typedef void type;
+};
+template<typename T> using trivially_assignable =
+  typename trivially_assignable_check<T, true>::type;
+template<typename T> using not_trivially_assignable =
+  typename trivially_assignable_check<T, false>::type;
+
+struct Trivial {};
+using _ = trivially_assignable<Trivial>;
+
+// A copy/move assignment operator for class X is trivial if it is not user-provided,
+struct UserProvided {
+  UserProvided &operator=(const UserProvided &);
+};
+using _ = not_trivially_assignable<UserProvided>;
+
+// its declared parameter type is the same as if it had been implicitly
+// declared,
+struct NonConstCopy {
+  NonConstCopy &operator=(NonConstCopy &) = default;
+};
+using _ = not_trivially_assignable<NonConstCopy>;
+
+// class X has no virtual functions
+struct VFn {
+  virtual void f();
+};
+using _ = not_trivially_assignable<VFn>;
+
+// and no virtual base classes
+struct VBase : virtual Trivial {};
+using _ = not_trivially_assignable<VBase>;
+
+// and the assignment operator selected to copy/move each [direct subobject] is trivial
+struct TemplateCtor {
+  template<typename T> TemplateCtor operator=(T &);
+};
+using _ = trivially_assignable<TemplateCtor>;
+struct TemplateCtorMember {
+  TemplateCtor tc;
+};
+using _ = trivially_assignable<TemplateCtorMember>;
+struct MutableTemplateCtorMember {
+  mutable TemplateCtor mtc;
+};
+static_assert(!__is_trivially_assignable(MutableTemplateCtorMember, const MutableTemplateCtorMember &), "");
+static_assert(__is_trivially_assignable(MutableTemplateCtorMember, MutableTemplateCtorMember &&), "");
+
+// Both trivial and non-trivial special members.
+struct TNT {
+  TNT &operator=(const TNT &) = default; // trivial
+  TNT &operator=(TNT &); // non-trivial
+
+  TNT &operator=(TNT &&) = default; // trivial
+  TNT &operator=(const TNT &&); // non-trivial
+};
+
+static_assert(!__has_trivial_assign(TNT), "lie deliberately for gcc compatibility");
+static_assert(__is_trivially_assignable(TNT, TNT), "");
+static_assert(!__is_trivially_assignable(TNT, TNT &), "");
+static_assert(__is_trivially_assignable(TNT, const TNT &), "");
+static_assert(!__is_trivially_assignable(TNT, volatile TNT &), "");
+static_assert(__is_trivially_assignable(TNT, TNT &&), "");
+static_assert(!__is_trivially_assignable(TNT, const TNT &&), "");
+static_assert(!__is_trivially_assignable(TNT, volatile TNT &&), "");
+
+// This has only trivial special members.
+struct DerivedFromTNT : TNT {};
+
+static_assert(__has_trivial_assign(DerivedFromTNT), "");
+static_assert(__is_trivially_assignable(DerivedFromTNT, DerivedFromTNT), "");
+static_assert(__is_trivially_assignable(DerivedFromTNT, DerivedFromTNT &), "");
+static_assert(__is_trivially_assignable(DerivedFromTNT, const DerivedFromTNT &), "");
+static_assert(!__is_trivially_assignable(DerivedFromTNT, volatile DerivedFromTNT &), "");
+static_assert(__is_trivially_assignable(DerivedFromTNT, DerivedFromTNT &&), "");
+static_assert(__is_trivially_assignable(DerivedFromTNT, const DerivedFromTNT &&), "");
+static_assert(!__is_trivially_assignable(DerivedFromTNT, volatile DerivedFromTNT &&), "");
+
+// This has only trivial special members.
+struct TNTMember {
+  TNT tnt;
+};
+
+static_assert(__has_trivial_assign(TNTMember), "");
+static_assert(__is_trivially_assignable(TNTMember, TNTMember), "");
+static_assert(__is_trivially_assignable(TNTMember, TNTMember &), "");
+static_assert(__is_trivially_assignable(TNTMember, const TNTMember &), "");
+static_assert(!__is_trivially_assignable(TNTMember, volatile TNTMember &), "");
+static_assert(__is_trivially_assignable(TNTMember, TNTMember &&), "");
+static_assert(__is_trivially_assignable(TNTMember, const TNTMember &&), "");
+static_assert(!__is_trivially_assignable(TNTMember, volatile TNTMember &&), "");
+
+struct NCCTNT : NonConstCopy, TNT {};
+
+static_assert(!__has_trivial_assign(NCCTNT), "");
+static_assert(!__is_trivially_assignable(NCCTNT, NCCTNT), "");
+static_assert(!__is_trivially_assignable(NCCTNT, NCCTNT &), "");
+static_assert(!__is_trivially_assignable(NCCTNT, const NCCTNT &), "");
+static_assert(!__is_trivially_assignable(NCCTNT, volatile NCCTNT &), "");
+static_assert(!__is_trivially_assignable(NCCTNT, NCCTNT &&), "");
+static_assert(!__is_trivially_assignable(NCCTNT, const NCCTNT &&), "");
+static_assert(!__is_trivially_assignable(NCCTNT, volatile NCCTNT &&), "");
+
+struct MultipleTrivial {
+  // All four of these are trivial.
+  MultipleTrivial &operator=(const MultipleTrivial &) & = default;
+  MultipleTrivial &operator=(const MultipleTrivial &) && = default;
+  MultipleTrivial &operator=(MultipleTrivial &&) & = default;
+  MultipleTrivial &operator=(MultipleTrivial &&) && = default;
+};
+
+using _ = trivially_assignable<MultipleTrivial>;
+
+struct RefQualifier {
+  RefQualifier &operator=(const RefQualifier &) & = default;
+  RefQualifier &operator=(const RefQualifier &) &&;
+  RefQualifier &operator=(RefQualifier &&) &;
+  RefQualifier &operator=(RefQualifier &&) && = default;
+};
+struct DerivedFromRefQualifier : RefQualifier {
+  // Both of these call the trivial copy operation.
+  DerivedFromRefQualifier &operator=(const DerivedFromRefQualifier &) & = default;
+  DerivedFromRefQualifier &operator=(const DerivedFromRefQualifier &) && = default;
+  // Both of these call the non-trivial move operation.
+  DerivedFromRefQualifier &operator=(DerivedFromRefQualifier &&) & = default;
+  DerivedFromRefQualifier &operator=(DerivedFromRefQualifier &&) && = default;
+};
+static_assert(__is_trivially_assignable(DerivedFromRefQualifier&, const DerivedFromRefQualifier&), "");
+static_assert(__is_trivially_assignable(DerivedFromRefQualifier&&, const DerivedFromRefQualifier&), "");
+static_assert(!__is_trivially_assignable(DerivedFromRefQualifier&, DerivedFromRefQualifier&&), "");
+static_assert(!__is_trivially_assignable(DerivedFromRefQualifier&&, DerivedFromRefQualifier&&), "");
+
+struct TemplateAssignNoMove {
+  TemplateAssignNoMove &operator=(const TemplateAssignNoMove &) = default;
+  template<typename T> TemplateAssignNoMove &operator=(T &&);
+};
+static_assert(__is_trivially_assignable(TemplateAssignNoMove, const TemplateAssignNoMove &), "");
+static_assert(!__is_trivially_assignable(TemplateAssignNoMove, TemplateAssignNoMove &&), "");
+
+struct UseTemplateAssignNoMove {
+  TemplateAssignNoMove tanm;
+};
+static_assert(__is_trivially_assignable(UseTemplateAssignNoMove, const UseTemplateAssignNoMove &), "");
+static_assert(!__is_trivially_assignable(UseTemplateAssignNoMove, UseTemplateAssignNoMove &&), "");
+
+struct TemplateAssignNoMoveSFINAE {
+  TemplateAssignNoMoveSFINAE &operator=(const TemplateAssignNoMoveSFINAE &) = default;
+  template<typename T, typename U = typename T::error> TemplateAssignNoMoveSFINAE &operator=(T &&);
+};
+static_assert(__is_trivially_assignable(TemplateAssignNoMoveSFINAE, const TemplateAssignNoMoveSFINAE &), "");
+static_assert(__is_trivially_assignable(TemplateAssignNoMoveSFINAE, TemplateAssignNoMoveSFINAE &&), "");
+
+struct UseTemplateAssignNoMoveSFINAE {
+  TemplateAssignNoMoveSFINAE tanm;
+};
+static_assert(__is_trivially_assignable(UseTemplateAssignNoMoveSFINAE, const UseTemplateAssignNoMoveSFINAE &), "");
+static_assert(__is_trivially_assignable(UseTemplateAssignNoMoveSFINAE, UseTemplateAssignNoMoveSFINAE &&), "");
+
+namespace TrivialityDependsOnImplicitDeletion {
+  struct PrivateMove {
+    PrivateMove &operator=(const PrivateMove &) = default;
+  private:
+    PrivateMove &operator=(PrivateMove &&);
+    friend class Access;
+  };
+  static_assert(__is_trivially_assignable(PrivateMove, const PrivateMove &), "");
+  static_assert(!__is_trivially_assignable(PrivateMove, PrivateMove &&), "");
+
+  struct NoAccess {
+    PrivateMove pm;
+    // NoAccess's move would be deleted, so is suppressed,
+    // so moves of it use PrivateMove's copy ctor, which is trivial.
+  };
+  static_assert(__is_trivially_assignable(NoAccess, const NoAccess &), "");
+  static_assert(__is_trivially_assignable(NoAccess, NoAccess &&), "");
+  struct TopNoAccess : NoAccess {};
+  static_assert(__is_trivially_assignable(TopNoAccess, const TopNoAccess &), "");
+  static_assert(__is_trivially_assignable(TopNoAccess, TopNoAccess &&), "");
+
+  struct Access {
+    PrivateMove pm;
+    // NoAccess's move would *not* be deleted, so is *not* suppressed,
+    // so moves of it use PrivateMove's move ctor, which is not trivial.
+  };
+  static_assert(__is_trivially_assignable(Access, const Access &), "");
+  static_assert(!__is_trivially_assignable(Access, Access &&), "");
+  struct TopAccess : Access {};
+  static_assert(__is_trivially_assignable(TopAccess, const TopAccess &), "");
+  static_assert(!__is_trivially_assignable(TopAccess, TopAccess &&), "");
+}