config.mlir_test_dir = os.path.join(real_test_srcdir,
                                    os.environ['TEST_WORKSPACE'], test_dir)

if platform.system() == 'Windows':
  # Configure this to work with msys2, TF's preferred windows bash.
  config.lit_tools_dir = '/usr/bin'

lit.llvm.initialize(lit_config, config)

# Let the main config do the real work.
lit_config.load_config(
    config,
    os.path.join(