From 7b8ba17761180d272d7fa0c1c7371e5b0b9b3872 Mon Sep 17 00:00:00 2001
From: Misha Brukman <brukman+llvm@gmail.com>
Date: Fri, 22 Nov 2002 22:32:15 +0000
Subject: [PATCH] Set SSARegMap to NULL after deleting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4822 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/MachineFunction.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index f4a5180e322..0e0aa510367 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;
-- 
2.11.0