Fix undefined behavior: member function calls where 'this' is a null pointer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162430 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/StaticAnalyzer/Core/SymbolManager.cpp b/lib/StaticAnalyzer/Core/SymbolManager.cpp
index 440ddfffcd..c21df4c318 100644
--- a/lib/StaticAnalyzer/Core/SymbolManager.cpp
+++ b/lib/StaticAnalyzer/Core/SymbolManager.cpp
@@ -520,7 +520,7 @@ bool SymbolReaper::isLive(const VarRegion *VR, bool includeStoreBindings) const{
   const StackFrameContext *CurrentContext = LCtx->getCurrentStackFrame();
 
   if (VarContext == CurrentContext) {
-    // If no statemetnt is provided, everything is live.
+    // If no statement is provided, everything is live.
     if (!Loc)
       return true;
 
@@ -548,7 +548,7 @@ bool SymbolReaper::isLive(const VarRegion *VR, bool includeStoreBindings) const{
     return false;
   }
 
-  return VarContext->isParentOf(CurrentContext);
+  return !VarContext || VarContext->isParentOf(CurrentContext);
 }
 
 SymbolVisitor::~SymbolVisitor() {}