model: shorten some code

diff --git a/model.cc b/model.cc
index 0c201fd381aa239eeaa060d6e46f22aae9023579..73bafc004b6cf50d3dc94b940d3dc4005a68b93b 100644 (file)
--- a/model.cc
+++ b/model.cc
@@ -848,10 +848,11 @@ ModelAction * ModelChecker::get_next_backtrack()
  */
 bool ModelChecker::process_read(ModelAction *curr)
 {
+       Node *node = curr->get_node();
        uint64_t value = VALUE_NONE;
        bool updated = false;
        while (true) {
-               const ModelAction *rf = curr->get_node()->get_read_from_past();
+               const ModelAction *rf = node->get_read_from_past();
                if (rf != NULL) {
                        mo_graph->startChanges();
 
@@ -860,7 +861,7 @@ bool ModelChecker::process_read(ModelAction *curr)
                        check_recency(curr, rf);
                        bool r_status = r_modification_order(curr, rf);
 
-                       if (is_infeasible() && (curr->get_node()->increment_read_from_past() || curr->get_node()->increment_future_value())) {
+                       if (is_infeasible() && (node->increment_read_from_past() || node->increment_future_value())) {
                                mo_graph->rollbackChanges();
                                priv->too_many_reads = false;
                                continue;
@@ -873,7 +874,7 @@ bool ModelChecker::process_read(ModelAction *curr)
                        updated |= r_status;
                } else {
                        /* Read from future value */
-                       struct future_value fv = curr->get_node()->get_future_value();
+                       struct future_value fv = node->get_future_value();
                        Promise *promise = new Promise(curr, fv);
                        value = fv.value;
                        curr->set_read_from_promise(promise);