1 files changed, 18 insertions, 6 deletions
diff --git a/include/clang/Basic/TargetCXXABI.h b/include/clang/Basic/TargetCXXABI.h
index c9d28f8..1590cca 100644
--- a/include/clang/Basic/TargetCXXABI.h
+++ b/include/clang/Basic/TargetCXXABI.h
@@ -131,24 +131,36 @@ public:
   /// \brief Is the default C++ member function calling convention
   /// the same as the default calling convention?
   bool isMemberFunctionCCDefault() const {
-    // Right now, this is always true for Microsoft.
+    // Right now, this is always false for Microsoft.
     return !isMicrosoft();
   }
 
+  /// Are temporary objects passed by value to a call destroyed by the callee?
+  /// This is a fundamental language change, since it implies that objects
+  /// passed by value do *not* live to the end of the full expression.
+  /// Temporaries passed to a function taking a const reference live to the end
+  /// of the full expression as usual.  Both the caller and the callee must
+  /// have access to the destructor, while only the caller needs the
+  /// destructor if this is false.
+  bool isArgumentDestroyedByCallee() const {
+    return isMicrosoft();
+  }
+
   /// \brief Does this ABI have different entrypoints for complete-object
   /// and base-subobject constructors?
   bool hasConstructorVariants() const {
     return isItaniumFamily();
   }
 
-  /// \brief Does this ABI have different entrypoints for complete-object
-  /// and base-subobject destructors?
-  bool hasDestructorVariants() const {
+  /// \brief Does this ABI allow virtual bases to be primary base classes?
+  bool hasPrimaryVBases() const {
     return isItaniumFamily();
   }
 
-  /// \brief Does this ABI allow virtual bases to be primary base classes?
-  bool hasPrimaryVBases() const {
+  /// \brief Does this ABI use key functions?  If so, class data such as the
+  /// vtable is emitted with strong linkage by the TU containing the key
+  /// function.
+  bool hasKeyFunctions() const {
     return isItaniumFamily();
   }