Make removeTriviallyDeadNodes a private interface of DSGraph


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4659 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/BottomUpClosure.cpp b/lib/Analysis/DataStructure/BottomUpClosure.cpp
index ec9e0db..1a3f480 100644
--- a/lib/Analysis/DataStructure/BottomUpClosure.cpp
+++ b/lib/Analysis/DataStructure/BottomUpClosure.cpp
@@ -154,10 +154,11 @@
     }
   } while (Inlined && !FCs.empty());
 
+#if 0
   Graph->maskIncompleteMarkers();
   Graph->markIncompleteNodes();
-  Graph->removeTriviallyDeadNodes(false);
   Graph->removeDeadNodes(/*KeepAllGlobals*/ true, /*KeepCalls*/ true);
+#endif
 
   DEBUG(std::cerr << "  [BU] Done inlining: " << F.getName() << " ["
         << Graph->getGraphSize() << "+" << Graph->getFunctionCalls().size()