115       ir_function_signature *linked_sig =  in visit_enter()  local
117       if ((linked_sig == NULL)  in visit_enter()
118 	  || ((linked_sig != NULL)  in visit_enter()
119 	      && (linked_sig->is_builtin != ir->use_builtin))) {  in visit_enter()
120 	 linked_sig = new(linked) ir_function_signature(callee->return_type);  in visit_enter()
121 	 f->add_signature(linked_sig);  in visit_enter()
128       assert(!linked_sig->is_defined);  in visit_enter()
129       assert(linked_sig->body.is_empty());  in visit_enter()
154       linked_sig->replace_parameters(&formal_parameters);  in visit_enter()
160 	 linked_sig->body.push_tail(copy);  in visit_enter()
163       linked_sig->is_defined = true;  in visit_enter()
169       linked_sig->accept(this);  in visit_enter()
171       ir->callee = linked_sig;  in visit_enter()