This would have to be entirely depend on your empolyer
Rfellow is right that declare bankrupcy is to clear the debt, but still continue with its business, with certain limitations, of course.
The other type of bankrupcy is to close shop immediately, and that will definitely affect your I-140.
In the first case, if your employer still has the same offer for you, it shouldn\'t be a problem for you continue on I-140, I think.