Initialize the X_md field.

2010-04-21  H.J. Lu  <hongjiu.lu@intel.com>

	* expr.c (expr): Initialize the X_md field.

gas/ChangeLog

@@ -1,3 +1,7 @@
+2010-04-21  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* expr.c (expr): Initialize the X_md field.
+
 2010-04-20  Joseph Myers  <joseph@codesourcery.com>
 
 	* config/tc-tic6x.c (OPTION_MGENERATE_REL): New.

gas/expr.c

@@ -1740,6 +1740,7 @@ expr (int rankarg,		/* Larger # is higher rank.  */
 
       input_line_pointer += op_chars;	/* -> after operator.  */
 
+      right.X_md = 0;
       rightseg = expr (op_rank[(int) op_left], &right, mode);
       if (right.X_op == O_absent)
 	{