[analyzer] Use a temporary builder in CheckerContext.

First step toward removing the global Stmt builder. Added several transitional methods (like takeNodes/addNodes).
+ Stop early if the set of exploded nodes for the next iteration is empty.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142827 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/StaticAnalyzer/Core/CoreEngine.cpp b/lib/StaticAnalyzer/Core/CoreEngine.cpp
index b9ab7b4c74..6616e065d3 100644
--- a/lib/StaticAnalyzer/Core/CoreEngine.cpp
+++ b/lib/StaticAnalyzer/Core/CoreEngine.cpp
@@ -504,7 +504,7 @@ ExplodedNode* NodeBuilder::generateNodeImpl(const ProgramPoint &Loc,
   if (MarkAsSink)
     N->markAsSink();
     
-  if (IsNew)
+  if (IsNew && !MarkAsSink)
     Frontier.Add(N);
 
   return (IsNew ? N : 0);