Fix a possible crash on delete of an uninitialized variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77846 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PIC16/PIC16TargetObjectFile.cpp b/lib/Target/PIC16/PIC16TargetObjectFile.cpp
index f287456..7b5d557 100644
--- a/lib/Target/PIC16/PIC16TargetObjectFile.cpp
+++ b/lib/Target/PIC16/PIC16TargetObjectFile.cpp
@@ -15,6 +15,11 @@
 #include "llvm/MC/MCSection.h"
 using namespace llvm;
 
+PIC16TargetObjectFile::PIC16TargetObjectFile()
+  : ExternalVarDecls(0), ExternalVarDefs(0) 
+{
+}
+
 void PIC16TargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &tm){
   TargetLoweringObjectFile::Initialize(Ctx, tm);
   TM = &tm;