static analyzer: Make GRStates reference counted, with reference counts managed by ExplodedNodes.

This reduces memory usage of the analyzer on sqlite by another 5%.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125260 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/StaticAnalyzer/Core/ExplodedGraph.cpp b/lib/StaticAnalyzer/Core/ExplodedGraph.cpp
index 84fcacab63..3ce50d6539 100644
--- a/lib/StaticAnalyzer/Core/ExplodedGraph.cpp
+++ b/lib/StaticAnalyzer/Core/ExplodedGraph.cpp
@@ -123,6 +123,8 @@ void ExplodedGraph::reclaimRecentlyAllocatedNodes() {
       freeNodes = new NodeList();
     getNodeList(freeNodes)->push_back(node);
     Nodes.RemoveNode(node);
+    --NumNodes;
+    node->~ExplodedNode();
   }
   
   nl.clear();