cyclegraph: add ASSERT() for reflexive edges

diff --git a/cyclegraph.cc b/cyclegraph.cc
index ecf8a781c2770ebd09766cff47030e3e094bd2d7..2bfe76ac424c274bf8152638543ad7dd6bc1d31f 100644 (file)
--- a/cyclegraph.cc
+++ b/cyclegraph.cc
@@ -41,6 +41,7 @@ CycleNode * CycleGraph::getNode(const ModelAction *action) {
 void CycleGraph::addEdge(const ModelAction *from, const ModelAction *to) {
        ASSERT(from);
        ASSERT(to);
+       ASSERT(from != to);
 
        CycleNode *fromnode=getNode(from);
        CycleNode *tonode=getNode(to);
@@ -82,6 +83,7 @@ void CycleGraph::addEdge(const ModelAction *from, const ModelAction *to) {
 void CycleGraph::addRMWEdge(const ModelAction *from, const ModelAction *rmw) {
        ASSERT(from);
        ASSERT(rmw);
+       ASSERT(from != rmw);
 
        CycleNode *fromnode=getNode(from);
        CycleNode *rmwnode=getNode(rmw);