--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libcxx/test/lit.cfg	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,54 @@
+# -*- Python -*- vim: set ft=python ts=4 sw=4 expandtab tw=79:
+# Configuration file for the 'lit' test runner.
+import os
+import site
+
+site.addsitedir(os.path.join(os.path.dirname(os.path.dirname(__file__)), 'utils'))
+
+
+# Tell pylint that we know config and lit_config exist somewhere.
+if 'PYLINT_IMPORT' in os.environ:
+    config = object()
+    lit_config = object()
+
+# name: The name of this test suite.
+config.name = 'libc++'
+
+# suffixes: A list of file extensions to treat as test files.
+config.suffixes = ['.pass.cpp', '.fail.cpp', '.sh.cpp']
+
+# test_source_root: The root path where tests are located.
+config.test_source_root = os.path.dirname(__file__)
+
+loaded_site_cfg = getattr(config, 'loaded_site_config', False)
+if not loaded_site_cfg:
+    import libcxx.test.config
+    libcxx.test.config.loadSiteConfig(lit_config, config, 'libcxx_site_config',
+                                      'LIBCXX_SITE_CONFIG')
+
+# Infer the test_exec_root from the libcxx_object root.
+obj_root = getattr(config, 'libcxx_obj_root', None)
+
+# Check that the test exec root is known.
+if obj_root is None:
+    obj_root = getattr(config, 'libcxx_obj_root', None)
+    if obj_root is None:
+        import tempfile
+        obj_root = tempfile.mkdtemp(prefix='libcxx-testsuite-')
+        lit_config.warning('Creating temporary directory for object root: %s' %
+                           obj_root)
+
+config.test_exec_root = os.path.join(obj_root, 'test')
+
+cfg_variant = getattr(config, 'configuration_variant', 'libcxx')
+if cfg_variant:
+    lit_config.note('Using configuration variant: %s' % cfg_variant)
+
+# Load the Configuration class from the module name <cfg_variant>.test.config.
+config_module_name = '.'.join([cfg_variant, 'test', 'config'])
+config_module = __import__(config_module_name, fromlist=['Configuration'])
+
+configuration = config_module.Configuration(lit_config, config)
+configuration.configure()
+configuration.print_config_info()
+config.test_format = configuration.get_test_format()