Initialize this variable on all paths, fixing a crasher in windows.  Thanks
to JeffC for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24426 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp
index f0786e5..d08cd7f 100644
--- a/utils/TableGen/CodeGenTarget.cpp
+++ b/utils/TableGen/CodeGenTarget.cpp
@@ -267,7 +267,7 @@
     MVT::ValueType Ty;
     std::string PrintMethod = "printOperand";
     unsigned NumOps = 1;
-    DagInit *MIOpInfo;
+    DagInit *MIOpInfo = 0;
     if (Rec->isSubClassOf("RegisterClass")) {
       Ty = getValueType(Rec->getValueAsDef("RegType"));
     } else if (Rec->isSubClassOf("Operand")) {