[libFuzzer tests] Only enable libFuzzer tests if
-DLIBFUZZER_ENABLE_TESTS=ON is set.
llvm-svn: 310100
diff --git a/llvm/docs/LibFuzzer.rst b/llvm/docs/LibFuzzer.rst
index db6538f..e22ed38 100644
--- a/llvm/docs/LibFuzzer.rst
+++ b/llvm/docs/LibFuzzer.rst
@@ -628,8 +628,7 @@
Users of other operating systems can explicitly request compilation using
``-DLIBFUZZER_ENABLE=YES`` flag.
Tests are run using ``check-fuzzer`` target from the build directory
-(note that tests will take a long time to run if the compiler was compiled
-without optimizations):
+which was configured with ``-DLIBFUZZER_ENABLE_TESTS=ON`` flag.
.. code-block:: console