Index: lib/Sema/SemaExprCXX.cpp
===================================================================
--- lib/Sema/SemaExprCXX.cpp
+++ lib/Sema/SemaExprCXX.cpp
@@ -6798,7 +6798,15 @@
     ObjectType = ParsedType::make(BaseType);
     MayBePseudoDestructor = true;
     return Base;
-  } else if (!BaseType->isRecordType()) {
+  }
+
+  if (BaseType->isExtVectorType()) {
+    ObjectType = ParsedType::make(BaseType);
+    MayBePseudoDestructor = true;
+    return Base;
+  }
+
+  if (!BaseType->isRecordType()) {
     ObjectType = nullptr;
     MayBePseudoDestructor = true;
     return Base;
Index: test/SemaCXX/vector.cpp
===================================================================
--- test/SemaCXX/vector.cpp
+++ test/SemaCXX/vector.cpp
@@ -333,4 +333,10 @@
   const PR15730<8, char>::type2 PR15730_2 = {};
 }
 
+// This used to be rejected because the name lookup determined 'x' in 'a.x' was
+// a template name.
+bool templateName(char16_e a, char16_e b) {
+  return a.x < b.x && b.y > a.y;
+}
+
 } // namespace Templates