if (self.getInitWork()!=null) { addEntryExit(self.getInitWork()); }
    public void preVisitPipeline(SIRPipeline self,				 SIRStream parent,				 JFieldDeclaration[] fields,				 JMethodDeclaration[] methods,				 JMethodDeclaration init,				 List elements) {	// don't do anything--visit on the way up    }