diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index 2144845..07d9315 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -5145,7 +5145,8 @@
       *this, From->getLocStart(), From->getType(), FromClassification, Method,
       Method->getParent());
   if (ICS.isBad()) {
-    if (ICS.Bad.Kind == BadConversionSequence::bad_qualifiers) {
+    switch (ICS.Bad.Kind) {
+    case BadConversionSequence::bad_qualifiers: {
       Qualifiers FromQs = FromRecordType.getQualifiers();
       Qualifiers ToQs = DestType.getQualifiers();
       unsigned CVR = FromQs.getCVRQualifiers() & ~ToQs.getCVRQualifiers();
@@ -5158,10 +5159,28 @@
           << Method->getDeclName();
         return ExprError();
       }
+      break;
+    }
+
+    case BadConversionSequence::lvalue_ref_to_rvalue:
+    case BadConversionSequence::rvalue_ref_to_lvalue: {
+      bool IsRValueQualified =
+        Method->getRefQualifier() == RefQualifierKind::RQ_RValue;
+      Diag(From->getLocStart(), diag::err_member_function_call_bad_ref)
+        << Method->getDeclName() << FromClassification.isRValue()
+        << IsRValueQualified;
+      Diag(Method->getLocation(), diag::note_previous_decl)
+        << Method->getDeclName();
+      return ExprError();
+    }
+
+    case BadConversionSequence::no_conversion:
+    case BadConversionSequence::unrelated_class:
+      break;
     }
 
     return Diag(From->getLocStart(),
-                diag::err_implicit_object_parameter_init)
+                diag::err_member_function_call_bad_type)
        << ImplicitParamRecordType << FromRecordType << From->getSourceRange();
   }