From 4f28515992dfd851ce482803d8f3174d667e7cdb Mon Sep 17 00:00:00 2001
From: Ted Kremenek <kremenek@apple.com>
Date: Fri, 18 Apr 2008 16:30:14 +0000
Subject: [PATCH] Fixed bug in GREndPathNodeBuilder: only return a node if it
 wasn't in the node cache.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49907 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/CFRefCount.cpp   | 4 ++++
 lib/Analysis/GRCoreEngine.cpp | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/Analysis/CFRefCount.cpp b/lib/Analysis/CFRefCount.cpp
index 1c2f20aa3b..1618f04359 100644
--- a/lib/Analysis/CFRefCount.cpp
+++ b/lib/Analysis/CFRefCount.cpp
@@ -1065,6 +1065,10 @@ void CFRefCount::EvalEndPath(GRExprEngine& Eng,
   }
       
   ExplodedNode<ValueState>* N = Builder.MakeNode(St);  
+  
+  if (!N)
+    return;
+  
   std::vector<SymbolID>*& LeaksAtNode = Leaks[N];
   assert (!LeaksAtNode);
   LeaksAtNode = new std::vector<SymbolID>();
diff --git a/lib/Analysis/GRCoreEngine.cpp b/lib/Analysis/GRCoreEngine.cpp
index ffb2fd2feb..7ad7f73abf 100644
--- a/lib/Analysis/GRCoreEngine.cpp
+++ b/lib/Analysis/GRCoreEngine.cpp
@@ -456,7 +456,8 @@ ExplodedNodeImpl* GREndPathNodeBuilderImpl::generateNodeImpl(void* State) {
   if (IsNew) {
     Node->markAsSink();
     Eng.G->addEndOfPath(Node);
+    return Node;
   }
   
-  return Node;
+  return NULL;
 }
-- 
2.40.0