optimize.c (remap_decl): Avoid sharing structure for arrays whose size is only known at run-time.

	* optimize.c (remap_decl): Avoid sharing structure for arrays
	whose size is only known at run-time.
	* tree.c (copy_tree_r): Don't copy PARM_DECLs.

From-SVN: r33081

gcc/cp/ChangeLog

 2000-04-11  Mark Mitchell  <mark@codesourcery.com>
 
+	* optimize.c (remap_decl): Avoid sharing structure for arrays
+	whose size is only known at run-time.
+	* tree.c (copy_tree_r): Don't copy PARM_DECLs.
+
 	* cp-tree.h (lang_decl_flags): Rename constructor_for_vbase_attr
 	to has_in_charge_parm_p.
 	(DECL_CONSTRUCTOR_FOR_VBASE_P): Rename to ...

gcc/cp/optimize.c

@@ -109,8 +109,13 @@ remap_decl (decl, id)
       walk_tree (&DECL_SIZE_UNIT (t), copy_body_r, id);
       if (TREE_TYPE (t) && TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
 	  && TYPE_DOMAIN (TREE_TYPE (t)))
-	walk_tree (&TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (t))),
-		   copy_body_r, id);
+	{
+	  TREE_TYPE (t) = copy_node (TREE_TYPE (t));
+	  TYPE_DOMAIN (TREE_TYPE (t)) 
+	    = copy_node (TYPE_DOMAIN (TREE_TYPE (t)));
+	  walk_tree (&TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (t))),
+		     copy_body_r, id);
+	}
 
       /* Remember it, so that if we encounter this local entity
 	 again we can reuse this copy.  */

gcc/cp/tree.c

@@ -1439,7 +1439,6 @@ copy_tree_r (tp, walk_subtrees, data)
       || TREE_CODE_CLASS (code) == 'r'
       || TREE_CODE_CLASS (code) == 'c'
       || TREE_CODE_CLASS (code) == 's'
-      || code == PARM_DECL
       || code == TREE_LIST
       || code == TREE_VEC
       || code == OVERLOAD)

gcc/testsuite/g++.old-deja/g++.other/inline9.C

+// Build don't link:
+// Origin: Mark Mitchell <mitchell@codesourcery.com>
+// Special g++ Options: -O2
+
+inline void f ()
+{
+  int n;
+  int i[n];
+}
+
+void g ()
+{
+  f ();
+}
+
+void h ()
+{
+  f ();
+}
+