re PR c++/3761 (ICE in check_template_shadow, at cp/pt.c:2013, with friend and…

re PR c++/3761 (ICE in check_template_shadow, at cp/pt.c:2013, with friend and strange class hierarchy)

	PR c++/3761
	* name-lookup.c (push_class_level_binding): Don't pass a
	TREE_LIST of ambiguous names to check_template_shadow as it
	only handles declarations. Instead, pull the declaration
	out and pass that.

	PR c++/3761
	* g++.dg/lookup/crash4.C: New test.

From-SVN: r84045

gcc/cp/ChangeLog

+2004-07-03  Scott Brumbaugh  <scottb.lists@verizon.net>
+
+	PR c++/3761
+	* name-lookup.c (push_class_level_binding): Don't pass a
+	TREE_LIST of ambiguous names to check_template_shadow as it
+	only handles declarations. Instead, pull the declaration 
+	out and pass that.
+
 2004-07-03  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
 
 	PR c++/14971

gcc/cp/name-lookup.c

@@ -2777,7 +2777,18 @@ push_class_level_binding (tree name, tree x)
   /* Make sure that this new member does not have the same name
      as a template parameter.  */
   if (TYPE_BEING_DEFINED (current_class_type))
-    check_template_shadow (x);
+    {
+      tree decl = x;
+
+      /* We could have been passed a tree list if this is an ambiguous
+	 declaration. If so, pull the declaration out because
+	 check_template_shadow will not handle a TREE_LIST. */
+      if (TREE_CODE (decl) == TREE_LIST 
+	  && TREE_TYPE (decl) == error_mark_node)
+	decl = TREE_VALUE (decl);
+      
+      check_template_shadow (decl);
+    }
 
   /* [class.mem]
 

gcc/testsuite/ChangeLog

+2004-07-03  Scott Brumbaugh  <scottb.lists@verizon.net>
+
+	PR c++/3761
+	* g++.dg/lookup/crash4.C: New test.
+
 2004-07-02  Zack Weinberg  <zack@codesourcery.com>
 
 	* gcc.c-torture/execute/builtin-abs-1.c

gcc/testsuite/g++.dg/lookup/crash4.C

+// { dg-do compile }
+//
+// PR 3761
+
+struct A {};
+
+struct B {};
+
+template <class T>
+struct Foo : A, B
+{
+  void func(void);
+
+  struct Nested
+  {
+    friend void Foo::func(void);
+  };
+};