Index: cmake/modules/AddLLVM.cmake
===================================================================
--- cmake/modules/AddLLVM.cmake
+++ cmake/modules/AddLLVM.cmake
@@ -1205,7 +1205,7 @@
     cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
 
     # Search recursively for test directories by assuming anything not
-    # in a directory called Inputs contains tests.
+    # in a directory called Inputs/Output/.* contains tests.
     file(GLOB_RECURSE to_process LIST_DIRECTORIES true ${directory}/*)
     foreach(lit_suite ${to_process})
       if(NOT IS_DIRECTORY ${lit_suite})
@@ -1216,6 +1216,9 @@
       if (NOT (is_inputs EQUAL -1 AND is_output EQUAL -1))
         continue()
       endif()
+      if(${lit_suite} MATCHES ".*[\/][\.].*")
+        continue()
+      endif()
 
       # Create a check- target for the directory.
       string(REPLACE ${directory} "" name_slash ${lit_suite})