work around a gcc bug with -Wuninitialized.

llvm-svn: 95808
diff --git a/llvm/utils/TableGen/CodeGenInstruction.h b/llvm/utils/TableGen/CodeGenInstruction.h
index e81e7f4..285da14 100644
--- a/llvm/utils/TableGen/CodeGenInstruction.h
+++ b/llvm/utils/TableGen/CodeGenInstruction.h
@@ -41,6 +41,7 @@
       static ConstraintInfo getEarlyClobber() {
         ConstraintInfo I;
         I.Kind = EarlyClobber;
+        I.OtherTiedOperand = 0;
         return I;
       }