From: Tom Care <tom.care@uqconnect.edu.au>
Date: Fri, 27 Aug 2010 22:35:28 +0000 (+0000)
Subject: Fix bug in IdempotentOperationChecker where an assumption would not get updated properly.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d8421eddff2d63e8b1f317f8cd7b1aeee5fdfe8a;p=clang

Fix bug in IdempotentOperationChecker where an assumption would not get updated properly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112309 91177308-0d34-0410-b5e6-96231b3b80d8
---

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: