tree.c (copy_node): Do zero the TREE_CHAIN, even for an EXPR_WITH_FILE_LOCATION.

	* tree.c (copy_node): Do zero the TREE_CHAIN, even for an
	EXPR_WITH_FILE_LOCATION.

From-SVN: r30848

gcc/ChangeLog

+1999-12-09  Mark Mitchell  <mark@codesourcery.com>
+
+	* tree.c (copy_node): Do zero the TREE_CHAIN, even for an
+	EXPR_WITH_FILE_LOCATION.
+
 Thu Dec  9 11:36:24 MET 1999 Jan Hubicka  <hubicka@freesoft.cz>
 
 	* i386.md (neg??, abs?f, one_cmpl?i): Use nonimmediate_operand

gcc/tree.c

@@ -1191,9 +1191,7 @@ copy_node (node)
     t = (tree) obstack_alloc (current_obstack, length);
   memcpy (t, node, length);
 
-  /* EXPR_WITH_FILE_LOCATION must keep filename info stored in TREE_CHAIN */
-  if (TREE_CODE (node) != EXPR_WITH_FILE_LOCATION)
-    TREE_CHAIN (t) = 0;
+  TREE_CHAIN (t) = 0;
   TREE_ASM_WRITTEN (t) = 0;
 
   if (TREE_CODE_CLASS (code) == 'd')