Index: test/CMakeLists.txt
===================================================================
--- test/CMakeLists.txt
+++ test/CMakeLists.txt
@@ -129,6 +129,16 @@
   )
 set_target_properties(check-llvm PROPERTIES FOLDER "Tests")
 
+add_lit_testsuite(check-lit "Running lit's own test suite"
+  ${LLVM_MAIN_SRC_DIR}/utils/lit/tests
+  DEPENDS ${LLVM_TEST_DEPENDS}
+  ARGS
+    # lit's own test.cfg doesn't have logic to find the LLVM
+    # utlities it depends on, like 'not' and 'FileCheck',
+    # so manually specify the PATH here.
+    --path=${LLVM_BINARY_DIR}/bin
+  )
+
 add_lit_testsuites(LLVM ${CMAKE_CURRENT_SOURCE_DIR}
   PARAMS llvm_site_config=${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
          llvm_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/Unit/lit.site.cfg
Index: utils/lit/tests/.gitignore
===================================================================
--- /dev/null
+++ utils/lit/tests/.gitignore
@@ -0,0 +1,2 @@
+Output
+