work around a gcc bug with -Wuninitialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95808 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index e81e7f4..285da14 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -41,6 +41,7 @@
       static ConstraintInfo getEarlyClobber() {
         ConstraintInfo I;
         I.Kind = EarlyClobber;
+        I.OtherTiedOperand = 0;
         return I;
       }