1 files changed, 4 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index f4a5180e32..0e0aa51036 100644
--- a/include/llvm/CodeGen/MachineFunction.h
+++ b/include/llvm/CodeGen/MachineFunction.h
@@ -97,7 +97,10 @@ public:
   void addRegMap(unsigned Reg, const TargetRegisterClass *RegClass) {
     SSARegMapping->addRegMap(Reg, RegClass);
   }
-  void clearSSARegMap() { delete SSARegMapping; }
+  void clearSSARegMap() { 
+    delete SSARegMapping;
+    SSARegMapping = NULL;
+  }
 
   // Provide accessors for the MachineBasicBlock list...
   typedef iplist<MachineBasicBlock> BasicBlockListType;