Index: include/clang/Basic/DiagnosticGroups.td
===================================================================
--- include/clang/Basic/DiagnosticGroups.td
+++ include/clang/Basic/DiagnosticGroups.td
@@ -842,6 +842,7 @@
     SizeofArrayArgument,
     SizeofArrayDecay,
     StringPlusInt,
+    TautologicalCompare,
     Trigraphs,
     Uninitialized,
     UnknownPragmas,