1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Checker/IdempotentOperationChecker.cpp b/lib/Checker/IdempotentOperationChecker.cpp
index 4b26d467b6..35fb83e877 100644
--- a/lib/Checker/IdempotentOperationChecker.cpp
+++ b/lib/Checker/IdempotentOperationChecker.cpp
@@ -386,6 +386,10 @@ void IdempotentOperationChecker::VisitEndAnalysis(ExplodedGraph &G,
 // Updates the current assumption given the new assumption
 inline void IdempotentOperationChecker::UpdateAssumption(Assumption &A,
                                                         const Assumption &New) {
+// If the assumption is the same, there is nothing to do
+  if (A == New)
+    return;
+
   switch (A) {
   // If we don't currently have an assumption, set it
   case Possible: