unreachable:7:4:7:24:func1:Unreachable code:UNDEFINED
unreachable:12:8:12:28:func2:Unreachable code:UNDEFINED
unreachable:18:8:18:28:func3:Unreachable code:UNDEFINED
unreachable:22:4:22:16:func4:Unreachable code:UNDEFINED
unreachable:35:4:35:24:func6:Unreachable code:UNDEFINED
