// Check that extern options work.
// The dummy tool and graph are required to silence warnings.
// RUN: tblgen -I $srcroot/include --gen-llvmc %s -o %t
// RUN: grep {extern .* AutoGeneratedSwitch_Wall} %t
include "llvm/CompilerDriver/Common.td"
def OptList : OptionList<[(switch_option "Wall", (extern)),
(parameter_option "std", (extern)),
(prefix_list_option "L", (extern))]>;
def dummy_tool : Tool<[
(cmd_line "dummy_cmd"),
(in_language "dummy"),
(out_language "dummy"),
(actions (case
(switch_on "Wall"), (stop_compilation),
(not_empty "std"), (stop_compilation),
(not_empty "L"), (stop_compilation)))
]>;
def DummyGraph : CompilationGraph<[SimpleEdge<"root", "dummy_tool">]>;