+ /* This process should not add a cycle because either:
+ * (1) The rmw should not have any incoming edges yet if it is the
+ * new node or
+ * (2) the fromnode is the new node and therefore it should not
+ * have any outgoing edges.
+ */
+ for (unsigned int i = 0; i < fromnode->getNumEdges(); i++) {
+ CycleNode *tonode = fromnode->getEdge(i);
+ if (tonode != rmwnode) {
+ if (rmwnode->addEdge(tonode))
+ rollbackvector.push_back(rmwnode);
+ }
+ }
+
+ addNodeEdge(fromnode, rmwnode);
+}
+/* Instantiate two forms of CycleGraph::addRMWEdge */
+template void CycleGraph::addRMWEdge(const ModelAction *from, const ModelAction *rmw);
+template void CycleGraph::addRMWEdge(const Promise *from, const ModelAction *rmw);
+
+/**
+ * @brief Adds an edge between objects
+ *
+ * This function will add an edge between any two objects which can be
+ * associated with a CycleNode. That is, if they have a CycleGraph::getNode
+ * implementation.
+ *
+ * The object to is ordered after the object from.
+ *
+ * @param to The edge points to this object, of type T
+ * @param from The edge comes from this object, of type U
+ * @return True, if new edge(s) are added; otherwise false
+ */
+template <typename T, typename U>
+bool CycleGraph::addEdge(const T *from, const U *to)
+{
+ ASSERT(from);
+ ASSERT(to);
+
+ CycleNode *fromnode = getNode(from);
+ CycleNode *tonode = getNode(to);
+
+ return addNodeEdge(fromnode, tonode);
+}
+/* Instantiate four forms of CycleGraph::addEdge */
+template bool CycleGraph::addEdge(const ModelAction *from, const ModelAction *to);
+template bool CycleGraph::addEdge(const ModelAction *from, const Promise *to);
+template bool CycleGraph::addEdge(const Promise *from, const ModelAction *to);
+template bool CycleGraph::addEdge(const Promise *from, const Promise *to);
+
+#if SUPPORT_MOD_ORDER_DUMP
+
+static void print_node(FILE *file, const CycleNode *node, int label)
+{
+ if (node->is_promise()) {
+ const Promise *promise = node->getPromise();
+ int idx = promise->get_index();
+ fprintf(file, "P%u", idx);
+ if (label) {
+ int first = 1;
+ fprintf(file, " [label=\"P%d, T", idx);
+ for (unsigned int i = 0 ; i < model->get_num_threads(); i++)
+ if (promise->thread_is_available(int_to_id(i))) {
+ fprintf(file, "%s%u", first ? "": ",", i);
+ first = 0;
+ }
+ fprintf(file, "\"]");
+ }
+ } else {
+ const ModelAction *act = node->getAction();
+ modelclock_t idx = act->get_seq_number();
+ fprintf(file, "N%u", idx);
+ if (label)
+ fprintf(file, " [label=\"N%u, T%u\"]", idx, act->get_tid());