cp-tree.h (IS_AGGR_TYPE): Rename to MAYBE_CLASS_TYPE_P.

2008-03-21  Paolo Carlini  <pcarlini@suse.de>

	* cp-tree.h (IS_AGGR_TYPE): Rename to MAYBE_CLASS_TYPE_P.
	(SET_IS_AGGR_TYPE): Rename to SET_CLASS_TYPE_P.
	(IS_AGGR_TYPE_CODE): Rename to RECORD_OR_UNION_CODE_P.
	(PROMOTES_TO_AGGR_TYPE): Remove.
	(CLASS_TYPE_P, TYPE_NON_AGGREGATE_CLASS): Adjust.
	* typeck.c (unary_complex_lvalue, build_modify_expr,
	convert_for_initialization): Adjust.
	* init.c (is_aggr_type): Remove.
	(is_class_type): Add.
	(build_offset_ref, build_new_1, build_vec_delete_1, build_vec_init,
	build_delete): Adjust.
	* lex.c (make_aggr_type): Remove.
	(make_class_type): Add.
	(cxx_make_type): Adjust.
	* class.c (finish_struct_1, fixed_type_or_null, is_empty_class):
	Adjust.
	* decl.c (build_typename_type, make_typename_type,
	make_unbound_class_template, cxx_init_decl_processing,
	check_tag_decl, groktypename, start_decl_1, layout_var_decl,
	check_initializer, cp_finish_decl, build_ptrmemfunc_type, grokparms,
	grok_op_properties, xref_tag, check_function_type): Adjust.
	* call.c (check_dtor_name, standard_conversion, implicit_conversion,
	add_builtin_candidate, add_builtin_candidates,
	build_user_type_conversion_1, convert_like_real, build_cxx_call,
	is_subseq, compare_ics): Adjust.
	* method.c (use_thunk): Adjust.
	* rtti.c (build_dynamic_cast_1, create_pseudo_type_info,
	create_tinfo_types): Adjust.
	* cvt.c (cp_convert_to_pointer, convert_to_pointer_force,
	build_up_reference, convert_to_reference, convert_from_reference,
	ocp_convert, build_expr_type_conversion): Adjust.
	* tree.c (bind_template_template_parm, error_type): Adjust.
	* dump.c (cp_dump_tree): Adjust.
	* search.c (lookup_member): Adjust.
	* friend.c (make_friend_class, do_friend): Adjust.
	* typeck2.c (store_init_value, process_init_constructor_array,
	process_init_constructor_record, build_x_arrow, build_m_component_ref,
	build_functional_cast): Adjust.
	* pt.c (finish_member_template_decl, process_template_parm,
	lookup_template_class, tsubst_function_type, tsubst,
	tsubst_copy_and_build, get_template_base, bt_instantiate_type_proc):
	Adjust.
	* semantics.c (begin_class_definition, finish_base_specifier,
	finish_typeof, cxx_omp_predetermined_sharing, finish_decltype_type):
	Adjust.
	* name-lookup.c (constructor_name_p, push_overloaded_decl,
	do_class_using_decl, lookup_qualified_name,
	maybe_process_template_type_declaration): Adjust.
	* decl2.c (grok_array_decl, check_member_template,
	constrain_class_visibility): Adjust.
	* parser.c (cp_parser_class_name): Adjust.

From-SVN: r133434

21 files changed, 215 insertions, 163 deletions

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a853465..eaaddc8 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,57 @@
+2008-03-21  Paolo Carlini  <pcarlini@suse.de>
+
+	* cp-tree.h (IS_AGGR_TYPE): Rename to MAYBE_CLASS_TYPE_P.
+	(SET_IS_AGGR_TYPE): Rename to SET_CLASS_TYPE_P.
+	(IS_AGGR_TYPE_CODE): Rename to RECORD_OR_UNION_CODE_P.
+	(PROMOTES_TO_AGGR_TYPE): Remove.
+	(CLASS_TYPE_P, TYPE_NON_AGGREGATE_CLASS): Adjust.
+	* typeck.c (unary_complex_lvalue, build_modify_expr,
+	convert_for_initialization): Adjust.
+	* init.c (is_aggr_type): Remove.
+	(is_class_type): Add.
+	(build_offset_ref, build_new_1, build_vec_delete_1, build_vec_init,
+	build_delete): Adjust.
+	* lex.c (make_aggr_type): Remove.
+	(make_class_type): Add.
+	(cxx_make_type): Adjust.
+	* class.c (finish_struct_1, fixed_type_or_null, is_empty_class):
+	Adjust.
+	* decl.c (build_typename_type, make_typename_type,
+	make_unbound_class_template, cxx_init_decl_processing,
+	check_tag_decl, groktypename, start_decl_1, layout_var_decl,
+	check_initializer, cp_finish_decl, build_ptrmemfunc_type, grokparms,
+	grok_op_properties, xref_tag, check_function_type): Adjust.
+	* call.c (check_dtor_name, standard_conversion, implicit_conversion,
+	add_builtin_candidate, add_builtin_candidates,
+	build_user_type_conversion_1, convert_like_real, build_cxx_call,
+	is_subseq, compare_ics): Adjust.
+	* method.c (use_thunk): Adjust.
+	* rtti.c (build_dynamic_cast_1, create_pseudo_type_info,
+	create_tinfo_types): Adjust.
+	* cvt.c (cp_convert_to_pointer, convert_to_pointer_force,
+	build_up_reference, convert_to_reference, convert_from_reference,
+	ocp_convert, build_expr_type_conversion): Adjust.
+	* tree.c (bind_template_template_parm, error_type): Adjust.
+	* dump.c (cp_dump_tree): Adjust.
+	* search.c (lookup_member): Adjust.
+	* friend.c (make_friend_class, do_friend): Adjust.
+	* typeck2.c (store_init_value, process_init_constructor_array,
+	process_init_constructor_record, build_x_arrow, build_m_component_ref,
+	build_functional_cast): Adjust.
+	* pt.c (finish_member_template_decl, process_template_parm,
+	lookup_template_class, tsubst_function_type, tsubst,
+	tsubst_copy_and_build, get_template_base, bt_instantiate_type_proc):
+	Adjust.
+	* semantics.c (begin_class_definition, finish_base_specifier,
+	finish_typeof, cxx_omp_predetermined_sharing, finish_decltype_type):
+	Adjust.
+	* name-lookup.c (constructor_name_p, push_overloaded_decl,
+	do_class_using_decl, lookup_qualified_name,
+	maybe_process_template_type_declaration): Adjust.
+	* decl2.c (grok_array_decl, check_member_template,
+	constrain_class_visibility): Adjust.
+	* parser.c (cp_parser_class_name): Adjust.
+
 2008-03-18  Paolo Bonzini  <bonzini@gnu.org>
 
         * cp-lang.c (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS): Delete.
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index 3677262..41e6933 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -214,7 +214,8 @@ check_dtor_name (tree basetype, tree name)
     /* OK */;
   else if (TREE_CODE (name) == IDENTIFIER_NODE)
     {
-      if ((IS_AGGR_TYPE (basetype) && name == constructor_name (basetype))
+      if ((MAYBE_CLASS_TYPE_P (basetype)
+	   && name == constructor_name (basetype))
 	  || (TREE_CODE (basetype) == ENUMERAL_TYPE
 	      && name == TYPE_IDENTIFIER (basetype)))
 	return true;
@@ -732,8 +733,8 @@ standard_conversion (tree to, tree from, tree expr, bool c_cast_p,
 	  else if (!same_type_p (fbase, tbase))
 	    return NULL;
 	}
-      else if (IS_AGGR_TYPE (TREE_TYPE (from))
-	       && IS_AGGR_TYPE (TREE_TYPE (to))
+      else if (MAYBE_CLASS_TYPE_P (TREE_TYPE (from))
+	       && MAYBE_CLASS_TYPE_P (TREE_TYPE (to))
 	       /* [conv.ptr]
 
 		  An rvalue of type "pointer to cv D," where D is a
@@ -849,7 +850,7 @@ standard_conversion (tree to, tree from, tree expr, bool c_cast_p,
   else if (fcode == VECTOR_TYPE && tcode == VECTOR_TYPE
 	   && vector_types_convertible_p (from, to, false))
     return build_conv (ck_std, to, conv);
-  else if (IS_AGGR_TYPE (to) && IS_AGGR_TYPE (from)
+  else if (MAYBE_CLASS_TYPE_P (to) && MAYBE_CLASS_TYPE_P (from)
 	   && is_properly_derived_from (from, to))
     {
       if (conv->kind == ck_rvalue)
@@ -1296,8 +1297,8 @@ implicit_conversion (tree to, tree from, tree expr, bool c_cast_p,
     return conv;
 
   if (expr != NULL_TREE
-      && (IS_AGGR_TYPE (from)
-	  || IS_AGGR_TYPE (to))
+      && (MAYBE_CLASS_TYPE_P (from)
+	  || MAYBE_CLASS_TYPE_P (to))
       && (flags & LOOKUP_NO_CONVERSION) == 0)
     {
       struct z_candidate *cand;
@@ -1753,7 +1754,7 @@ add_builtin_candidate (struct z_candidate **candidates, enum tree_code code,
 	  tree c1 = TREE_TYPE (type1);
 	  tree c2 = TYPE_PTRMEM_CLASS_TYPE (type2);
 
-	  if (IS_AGGR_TYPE (c1) && DERIVED_FROM_P (c2, c1)
+	  if (MAYBE_CLASS_TYPE_P (c1) && DERIVED_FROM_P (c2, c1)
 	      && (TYPE_PTRMEMFUNC_P (type2)
 		  || is_complete (TYPE_PTRMEM_POINTED_TO_TYPE (type2))))
 	    break;
@@ -2024,7 +2025,7 @@ add_builtin_candidate (struct z_candidate **candidates, enum tree_code code,
 	  || (TYPE_PTR_P (type1) && TYPE_PTR_P (type2))
 	  || (TYPE_PTRMEM_P (type1) && TYPE_PTRMEM_P (type2))
 	  || TYPE_PTRMEMFUNC_P (type1)
-	  || IS_AGGR_TYPE (type1)
+	  || MAYBE_CLASS_TYPE_P (type1)
 	  || TREE_CODE (type1) == ENUMERAL_TYPE))
     {
       build_builtin_candidate
@@ -2141,7 +2142,7 @@ add_builtin_candidates (struct z_candidate **candidates, enum tree_code code,
     {
       if (! args[i])
 	;
-      else if (IS_AGGR_TYPE (argtypes[i]))
+      else if (MAYBE_CLASS_TYPE_P (argtypes[i]))
 	{
 	  tree convs;
 
@@ -2568,13 +2569,13 @@ build_user_type_conversion_1 (tree totype, tree expr, int flags)
   /* We represent conversion within a hierarchy using RVALUE_CONV and
      BASE_CONV, as specified by [over.best.ics]; these become plain
      constructor calls, as specified in [dcl.init].  */
-  gcc_assert (!IS_AGGR_TYPE (fromtype) || !IS_AGGR_TYPE (totype)
+  gcc_assert (!MAYBE_CLASS_TYPE_P (fromtype) || !MAYBE_CLASS_TYPE_P (totype)
 	      || !DERIVED_FROM_P (totype, fromtype));
 
-  if (IS_AGGR_TYPE (totype))
+  if (MAYBE_CLASS_TYPE_P (totype))
     ctors = lookup_fnfields (totype, complete_ctor_identifier, 0);
 
-  if (IS_AGGR_TYPE (fromtype))
+  if (MAYBE_CLASS_TYPE_P (fromtype))
     {
       tree to_nonref = non_reference (totype);
       if (same_type_ignoring_top_level_qualifiers_p (to_nonref, fromtype) ||
@@ -4381,7 +4382,7 @@ convert_like_real (conversion *convs, tree expr, tree fn, int argnum,
 	   conversion, but is not considered during overload resolution.
 
 	   If the target is a class, that means call a ctor.  */
-	if (IS_AGGR_TYPE (totype)
+	if (MAYBE_CLASS_TYPE_P (totype)
 	    && (inner >= 0 || !lvalue_p (expr)))
 	  {
 	    expr = (build_temp
@@ -4443,7 +4444,7 @@ convert_like_real (conversion *convs, tree expr, tree fn, int argnum,
     {
     case ck_rvalue:
       expr = convert_bitfield_to_declared_type (expr);
-      if (! IS_AGGR_TYPE (totype))
+      if (! MAYBE_CLASS_TYPE_P (totype))
 	return expr;
       /* Else fall through.  */
     case ck_base:
@@ -5193,7 +5194,7 @@ build_cxx_call (tree fn, int nargs, tree *argarray)
   if (fn == error_mark_node)
     return error_mark_node;
 
-  if (IS_AGGR_TYPE (TREE_TYPE (fn)))
+  if (MAYBE_CLASS_TYPE_P (TREE_TYPE (fn)))
     fn = build_cplus_new (TREE_TYPE (fn), fn);
   return convert_from_reference (fn);
 }
@@ -5742,8 +5743,7 @@ is_subseq (conversion *ics1, conversion *ics2)
 bool
 is_properly_derived_from (tree derived, tree base)
 {
-  if (!IS_AGGR_TYPE_CODE (TREE_CODE (derived))
-      || !IS_AGGR_TYPE_CODE (TREE_CODE (base)))
+  if (!CLASS_TYPE_P (derived) || !CLASS_TYPE_P (base))
     return false;
 
   /* We only allow proper derivation here.  The DERIVED_FROM_P macro
@@ -6021,8 +6021,8 @@ compare_ics (conversion *ics1, conversion *ics2)
     }
 
   if (deref_from_type1 != NULL_TREE
-      && IS_AGGR_TYPE_CODE (TREE_CODE (deref_from_type1))
-      && IS_AGGR_TYPE_CODE (TREE_CODE (deref_from_type2)))
+      && RECORD_OR_UNION_CODE_P (TREE_CODE (deref_from_type1))
+      && RECORD_OR_UNION_CODE_P (TREE_CODE (deref_from_type2)))
     {
       /* This was one of the pointer or pointer-like conversions.
 
@@ -6059,8 +6059,8 @@ compare_ics (conversion *ics1, conversion *ics2)
 		return -1;
 	    }
 	}
-      else if (IS_AGGR_TYPE_CODE (TREE_CODE (deref_to_type1))
-	       && IS_AGGR_TYPE_CODE (TREE_CODE (deref_to_type2)))
+      else if (RECORD_OR_UNION_CODE_P (TREE_CODE (deref_to_type1))
+	       && RECORD_OR_UNION_CODE_P (TREE_CODE (deref_to_type2)))
 	{
 	  /* [over.ics.rank]
 
diff --git a/gcc/cp/class.c b/gcc/cp/class.c
index 500ddaa..154c3b3 100644
--- a/gcc/cp/class.c
+++ b/gcc/cp/class.c
@@ -1,6 +1,6 @@
 /* Functions related to building classes and their related objects.
    Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
    Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)
 
@@ -4926,7 +4926,7 @@ layout_class_type (tree t, tree *virtuals_p)
   remove_zero_width_bit_fields (t);
 
   /* Create the version of T used for virtual bases.  We do not use
-     make_aggr_type for this version; this is an artificial type.  For
+     make_class_type for this version; this is an artificial type.  For
      a POD type, we just reuse T.  */
   if (CLASSTYPE_NON_POD_P (t) || CLASSTYPE_EMPTY_P (t))
     {
@@ -5086,7 +5086,7 @@ finish_struct_1 (tree t)
 
   if (COMPLETE_TYPE_P (t))
     {
-      gcc_assert (IS_AGGR_TYPE (t));
+      gcc_assert (MAYBE_CLASS_TYPE_P (t));
       error ("redefinition of %q#T", t);
       popclass ();
       return;
@@ -5432,7 +5432,7 @@ fixed_type_or_null (tree instance, int *nonnull, int *cdtorp)
     case VAR_DECL:
     case FIELD_DECL:
       if (TREE_CODE (TREE_TYPE (instance)) == ARRAY_TYPE
-	  && IS_AGGR_TYPE (TREE_TYPE (TREE_TYPE (instance))))
+	  && MAYBE_CLASS_TYPE_P (TREE_TYPE (TREE_TYPE (instance))))
 	{
 	  if (nonnull)
 	    *nonnull = 1;
@@ -5442,7 +5442,7 @@ fixed_type_or_null (tree instance, int *nonnull, int *cdtorp)
     case TARGET_EXPR:
     case PARM_DECL:
     case RESULT_DECL:
-      if (IS_AGGR_TYPE (TREE_TYPE (instance)))
+      if (MAYBE_CLASS_TYPE_P (TREE_TYPE (instance)))
 	{
 	  if (nonnull)
 	    *nonnull = 1;
@@ -6343,7 +6343,7 @@ is_empty_class (tree type)
   if (type == error_mark_node)
     return 0;
 
-  if (! IS_AGGR_TYPE (type))
+  if (! MAYBE_CLASS_TYPE_P (type))
     return 0;
 
   /* In G++ 3.2, whether or not a class was empty was determined by
diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 4f1a34b..9afeed7 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -1,6 +1,6 @@
 /* Definitions for C++ parsing and type checking.
    Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)
 
@@ -95,7 +95,7 @@ struct diagnostic_info;
    2: Unused
    3: TYPE_FOR_JAVA.
    4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
-   5: IS_AGGR_TYPE.
+   5: CLASS_TYPE_P.
    6: TYPE_DEPENDENT_P_VALID
 
    Usage of DECL_LANG_FLAG_?:
@@ -958,11 +958,9 @@ enum languages { lang_c, lang_cplusplus, lang_java };
 
 /* Nonzero if T is a class (or struct or union) type.  Also nonzero
    for template type parameters, typename types, and instantiated
-   template template parameters.  Despite its name,
-   this macro has nothing to do with the definition of aggregate given
-   in the standard.  Think of this macro as MAYBE_CLASS_TYPE_P.  Keep
-   these checks in ascending code order.  */
-#define IS_AGGR_TYPE(T)					\
+   template template parameters.  Keep these checks in ascending code
+   order.  */
+#define MAYBE_CLASS_TYPE_P(T)					\
   (TREE_CODE (T) == TEMPLATE_TYPE_PARM			\
    || TREE_CODE (T) == TYPENAME_TYPE			\
    || TREE_CODE (T) == TYPEOF_TYPE			\
@@ -970,22 +968,22 @@ enum languages { lang_c, lang_cplusplus, lang_java };
    || TREE_CODE (T) == DECLTYPE_TYPE			\
    || TYPE_LANG_FLAG_5 (T))
 
-/* Set IS_AGGR_TYPE for T to VAL.  T must be a class, struct, or
+/* Set CLASS_TYPE_P for T to VAL.  T must be a class, struct, or
    union type.  */
-#define SET_IS_AGGR_TYPE(T, VAL) \
+#define SET_CLASS_TYPE_P(T, VAL) \
   (TYPE_LANG_FLAG_5 (T) = (VAL))
 
 /* Nonzero if T is a class type.  Zero for template type parameters,
    typename types, and so forth.  */
 #define CLASS_TYPE_P(T) \
-  (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
+  (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
 
 /* Nonzero if T is a class type but not an union.  */
 #define NON_UNION_CLASS_TYPE_P(T) \
   (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
 
 /* Keep these checks in ascending code order.  */
-#define IS_AGGR_TYPE_CODE(T)	\
+#define RECORD_OR_UNION_CODE_P(T)	\
   ((T) == RECORD_TYPE || (T) == UNION_TYPE)
 #define TAGGED_TYPE_P(T) \
   (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
@@ -1034,11 +1032,6 @@ enum languages { lang_c, lang_cplusplus, lang_java };
 #define FUNCTION_FIRST_USER_PARM(NODE) \
   skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
 
-#define PROMOTES_TO_AGGR_TYPE(NODE, CODE)	\
-  (((CODE) == TREE_CODE (NODE)			\
-    && IS_AGGR_TYPE (TREE_TYPE (NODE)))		\
-   || IS_AGGR_TYPE (NODE))
-
 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
    ambiguity issues.  */
 #define DERIVED_FROM_P(PARENT, TYPE) \
@@ -2746,7 +2739,7 @@ more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
 #define CLASSTYPE_NON_AGGREGATE(NODE) \
   (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
-  (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
+  (MAYBE_CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
 
 /* Nonzero if there is a user-defined X::op=(x&) for this class.  */
 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
@@ -4344,7 +4337,7 @@ extern tree do_friend				(tree, tree, tree, tree, enum overload_flags, bool);
 extern tree expand_member_init			(tree);
 extern void emit_mem_initializers		(tree);
 extern tree build_aggr_init			(tree, tree, int);
-extern int is_aggr_type				(tree, int);
+extern int is_class_type			(tree, int);
 extern tree get_type_value			(tree);
 extern tree build_zero_init			(tree, tree, bool);
 extern tree build_value_init			(tree);
@@ -4374,7 +4367,7 @@ extern void retrofit_lang_decl			(tree);
 extern tree copy_decl				(tree);
 extern tree copy_type				(tree);
 extern tree cxx_make_type			(enum tree_code);
-extern tree make_aggr_type			(enum tree_code);
+extern tree make_class_type			(enum tree_code);
 extern void yyerror				(const char *);
 extern void yyhook				(int);
 extern bool cxx_init				(void);
diff --git a/gcc/cp/cvt.c b/gcc/cp/cvt.c
index 2911fea..64a8716 100644
--- a/gcc/cp/cvt.c
+++ b/gcc/cp/cvt.c
@@ -1,6 +1,6 @@
 /* Language-level data type conversion for GNU C++.
    Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
    Hacked by Michael Tiemann (tiemann@cygnus.com)
 
@@ -82,7 +82,7 @@ cp_convert_to_pointer (tree type, tree expr)
   if (intype == error_mark_node)
     return error_mark_node;
 
-  if (IS_AGGR_TYPE (intype))
+  if (MAYBE_CLASS_TYPE_P (intype))
     {
       intype = complete_type (intype);
       if (!COMPLETE_TYPE_P (intype))
@@ -127,8 +127,8 @@ cp_convert_to_pointer (tree type, tree expr)
       if (TYPE_MAIN_VARIANT (type) != intype
 	  && TREE_CODE (type) == POINTER_TYPE
 	  && TREE_CODE (TREE_TYPE (type)) == RECORD_TYPE
-	  && IS_AGGR_TYPE (TREE_TYPE (type))
-	  && IS_AGGR_TYPE (TREE_TYPE (intype))
+	  && MAYBE_CLASS_TYPE_P (TREE_TYPE (type))
+	  && MAYBE_CLASS_TYPE_P (TREE_TYPE (intype))
 	  && TREE_CODE (TREE_TYPE (intype)) == RECORD_TYPE)
 	{
 	  enum tree_code code = PLUS_EXPR;
@@ -256,8 +256,8 @@ convert_to_pointer_force (tree type, tree expr)
 
       if (TYPE_MAIN_VARIANT (type) != intype
 	  && TREE_CODE (TREE_TYPE (type)) == RECORD_TYPE
-	  && IS_AGGR_TYPE (TREE_TYPE (type))
-	  && IS_AGGR_TYPE (TREE_TYPE (intype))
+	  && MAYBE_CLASS_TYPE_P (TREE_TYPE (type))
+	  && MAYBE_CLASS_TYPE_P (TREE_TYPE (intype))
 	  && TREE_CODE (TREE_TYPE (intype)) == RECORD_TYPE)
 	{
 	  enum tree_code code = PLUS_EXPR;
@@ -332,8 +332,8 @@ build_up_reference (tree type, tree arg, int flags, tree decl)
 
   if ((flags & LOOKUP_PROTECT)
       && TYPE_MAIN_VARIANT (argtype) != TYPE_MAIN_VARIANT (target_type)
-      && IS_AGGR_TYPE (argtype)
-      && IS_AGGR_TYPE (target_type))
+      && MAYBE_CLASS_TYPE_P (argtype)
+      && MAYBE_CLASS_TYPE_P (target_type))
     {
       /* We go through lookup_base for the access control.  */
       tree binfo = lookup_base (argtype, target_type, ba_check, NULL);
@@ -418,7 +418,7 @@ convert_to_reference (tree reftype, tree expr, int convtype,
 
   can_convert_intype_to_type = can_convert (type, intype);
   if (!can_convert_intype_to_type
-      && (convtype & CONV_IMPLICIT) && IS_AGGR_TYPE (intype)
+      && (convtype & CONV_IMPLICIT) && MAYBE_CLASS_TYPE_P (intype)
       && ! (flags & LOOKUP_NO_CONVERSION))
     {
       /* Look for a user-defined conversion to lvalue that we can use.  */
@@ -530,7 +530,7 @@ convert_from_reference (tree val)
 tree
 force_rvalue (tree expr)
 {
-  if (IS_AGGR_TYPE (TREE_TYPE (expr)) && TREE_CODE (expr) != TARGET_EXPR)
+  if (MAYBE_CLASS_TYPE_P (TREE_TYPE (expr)) && TREE_CODE (expr) != TARGET_EXPR)
     expr = ocp_convert (TREE_TYPE (expr), expr,
 			CONV_IMPLICIT|CONV_FORCE_TEMP, LOOKUP_NORMAL);
   else
@@ -596,7 +596,7 @@ ocp_convert (tree type, tree expr, int convtype, int flags)
 
   e = integral_constant_value (e);
 
-  if (IS_AGGR_TYPE (type) && (convtype & CONV_FORCE_TEMP))
+  if (MAYBE_CLASS_TYPE_P (type) && (convtype & CONV_FORCE_TEMP))
     /* We need a new temporary; don't take this shortcut.  */;
   else if (same_type_ignoring_top_level_qualifiers_p (type, TREE_TYPE (e)))
     {
@@ -651,7 +651,7 @@ ocp_convert (tree type, tree expr, int convtype, int flags)
 	  if (!flag_permissive)
 	    return error_mark_node;
 	}
-      if (IS_AGGR_TYPE (intype))
+      if (MAYBE_CLASS_TYPE_P (intype))
 	{
 	  tree rval;
 	  rval = build_type_conversion (type, e);
@@ -671,7 +671,7 @@ ocp_convert (tree type, tree expr, int convtype, int flags)
   if (code == VECTOR_TYPE)
     {
       tree in_vtype = TREE_TYPE (e);
-      if (IS_AGGR_TYPE (in_vtype))
+      if (MAYBE_CLASS_TYPE_P (in_vtype))
 	{
 	  tree ret_val;
 	  ret_val = build_type_conversion (type, e);
@@ -685,7 +685,7 @@ ocp_convert (tree type, tree expr, int convtype, int flags)
     }
   if (code == REAL_TYPE || code == COMPLEX_TYPE)
     {
-      if (IS_AGGR_TYPE (TREE_TYPE (e)))
+      if (MAYBE_CLASS_TYPE_P (TREE_TYPE (e)))
 	{
 	  tree rval;
 	  rval = build_type_conversion (type, e);
@@ -705,7 +705,7 @@ ocp_convert (tree type, tree expr, int convtype, int flags)
   /* New C++ semantics:  since assignment is now based on
      memberwise copying,  if the rhs type is derived from the
      lhs type, then we may still do a conversion.  */
-  if (IS_AGGR_TYPE_CODE (code))
+  if (RECORD_OR_UNION_CODE_P (code))
     {
       tree dtype = TREE_TYPE (e);
       tree ctor = NULL_TREE;
@@ -725,7 +725,7 @@ ocp_convert (tree type, tree expr, int convtype, int flags)
 	return error_mark_node;
 
       if ((flags & LOOKUP_ONLYCONVERTING)
-	  && ! (IS_AGGR_TYPE (dtype) && DERIVED_FROM_P (type, dtype)))
+	  && ! (MAYBE_CLASS_TYPE_P (dtype) && DERIVED_FROM_P (type, dtype)))
 	/* For copy-initialization, first we create a temp of the proper type
 	   with a user-defined conversion sequence, then we direct-initialize
 	   the target with the temp (see [dcl.init]).  */
@@ -1065,7 +1065,7 @@ build_expr_type_conversion (int desires, tree expr, bool complain)
   if (basetype == error_mark_node)
     return error_mark_node;
 
-  if (! IS_AGGR_TYPE (basetype))
+  if (! MAYBE_CLASS_TYPE_P (basetype))
     switch (TREE_CODE (basetype))
       {
       case INTEGER_TYPE:
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 2318f69..8353b9b 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -2891,7 +2891,7 @@ build_typename_type (tree context, tree name, tree fullname,
   else
     {
       /* Build the TYPENAME_TYPE.  */
-      t = make_aggr_type (TYPENAME_TYPE);
+      t = cxx_make_type (TYPENAME_TYPE);
       TYPE_CONTEXT (t) = ti.scope;
       TYPENAME_TYPE_FULLNAME (t) = ti.template_id;
       TYPENAME_IS_ENUM_P (t) = ti.enum_p;
@@ -2979,7 +2979,7 @@ make_typename_type (tree context, tree name, enum tag_types tag_type,
   if (dependent_type_p (context))
     return build_typename_type (context, name, fullname, tag_type);
 
-  if (!IS_AGGR_TYPE (context))
+  if (!MAYBE_CLASS_TYPE_P (context))
     {
       if (complain & tf_error)
 	error ("%q#T is not a class", context);
@@ -3056,7 +3056,7 @@ make_unbound_class_template (tree context, tree name, tree parm_list,
     {
       tree tmpl = NULL_TREE;
 
-      if (IS_AGGR_TYPE (context))
+      if (MAYBE_CLASS_TYPE_P (context))
 	tmpl = lookup_field (context, name, 0, false);
 
       if (!tmpl || !DECL_CLASS_TEMPLATE_P (tmpl))
@@ -3084,7 +3084,7 @@ make_unbound_class_template (tree context, tree name, tree parm_list,
     }
 
   /* Build the UNBOUND_CLASS_TEMPLATE.  */
-  t = make_aggr_type (UNBOUND_CLASS_TEMPLATE);
+  t = cxx_make_type (UNBOUND_CLASS_TEMPLATE);
   TYPE_CONTEXT (t) = FROB_CONTEXT (context);
   TREE_TYPE (t) = NULL_TREE;
   SET_TYPE_STRUCTURAL_EQUALITY (t);
@@ -3382,7 +3382,7 @@ cxx_init_decl_processing (void)
 
     push_namespace (std_identifier);
     bad_alloc_id = get_identifier ("bad_alloc");
-    bad_alloc_type_node = make_aggr_type (RECORD_TYPE);
+    bad_alloc_type_node = make_class_type (RECORD_TYPE);
     TYPE_CONTEXT (bad_alloc_type_node) = current_namespace;
     bad_alloc_decl
       = create_implicit_typedef (bad_alloc_id, bad_alloc_type_node);
@@ -3773,7 +3773,7 @@ check_tag_decl (cp_decl_specifier_seq *declspecs)
   if (declspecs->type
       && TYPE_P (declspecs->type)
       && ((TREE_CODE (declspecs->type) != TYPENAME_TYPE
-	   && IS_AGGR_TYPE (declspecs->type))
+	   && MAYBE_CLASS_TYPE_P (declspecs->type))
 	  || TREE_CODE (declspecs->type) == ENUMERAL_TYPE))
     declared_type = declspecs->type;
   else if (declspecs->type == error_mark_node)
@@ -3781,7 +3781,7 @@ check_tag_decl (cp_decl_specifier_seq *declspecs)
   if (declared_type == NULL_TREE && ! saw_friend && !error_p)
     pedwarn ("declaration does not declare anything");
   /* Check for an anonymous union.  */
-  else if (declared_type && IS_AGGR_TYPE_CODE (TREE_CODE (declared_type))
+  else if (declared_type && RECORD_OR_UNION_CODE_P (TREE_CODE (declared_type))
 	   && TYPE_ANONYMOUS_P (declared_type))
     {
       /* 7/3 In a simple-declaration, the optional init-declarator-list
@@ -3910,7 +3910,7 @@ groktypename (cp_decl_specifier_seq *type_specifiers,
       if (CLASS_TYPE_P (type))
 	warning (OPT_Wattributes, "ignoring attributes applied to class type %qT "
 		 "outside of definition", type);
-      else if (IS_AGGR_TYPE (type))
+      else if (MAYBE_CLASS_TYPE_P (type))
 	/* A template type parameter or other dependent type.  */
 	warning (OPT_Wattributes, "ignoring attributes applied to dependent "
 		 "type %qT without an associated declaration", type);
@@ -4174,7 +4174,7 @@ start_decl_1 (tree decl, bool initialized)
 
   type = TREE_TYPE (decl);
   complete_p = COMPLETE_TYPE_P (type);
-  aggregate_definition_p = IS_AGGR_TYPE (type) && !DECL_EXTERNAL (decl);
+  aggregate_definition_p = MAYBE_CLASS_TYPE_P (type) && !DECL_EXTERNAL (decl);
 
   /* If an explicit initializer is present, or if this is a definition
      of an aggregate, then we need a complete type at this point.
@@ -4427,7 +4427,7 @@ layout_var_decl (tree decl)
   /* Keep this code around in case we later want to control debug info
      based on whether a type is "used".  (jason 1999-11-11) */
 
-  else if (!DECL_EXTERNAL (decl) && IS_AGGR_TYPE (ttype))
+  else if (!DECL_EXTERNAL (decl) && MAYBE_CLASS_TYPE_P (ttype))
     /* Let debugger know it should output info for this type.  */
     note_debug_info_needed (ttype);
 
@@ -5054,7 +5054,7 @@ check_initializer (tree decl, tree init, int flags, tree *cleanup)
     ;
   else if (TYPE_P (type) && TYPE_NEEDS_CONSTRUCTING (type))
     goto initialize_aggr;
-  else if (IS_AGGR_TYPE (type))
+  else if (MAYBE_CLASS_TYPE_P (type))
     {
       tree core_type = strip_array_types (type);
 
@@ -5450,7 +5450,7 @@ cp_finish_decl (tree decl, tree init, bool init_const_expr_p,
   if (TREE_CODE (decl) == TYPE_DECL)
     {
       if (type != error_mark_node
-	  && IS_AGGR_TYPE (type) && DECL_NAME (decl))
+	  && MAYBE_CLASS_TYPE_P (type) && DECL_NAME (decl))
 	{
 	  if (TREE_TYPE (DECL_NAME (decl)) && TREE_TYPE (decl) != type)
 	    warning (0, "shadowing previous type declaration of %q#D", decl);
@@ -5504,7 +5504,7 @@ cp_finish_decl (tree decl, tree init, bool init_const_expr_p,
 	     is *not* defined.  */
 	  && (!DECL_EXTERNAL (decl) || init))
 	{
-	  if (TYPE_FOR_JAVA (type) && IS_AGGR_TYPE (type))
+	  if (TYPE_FOR_JAVA (type) && MAYBE_CLASS_TYPE_P (type))
 	    {
 	      tree jclass
 		= IDENTIFIER_GLOBAL_VALUE (get_identifier ("jclass"));
@@ -5589,7 +5589,7 @@ cp_finish_decl (tree decl, tree init, bool init_const_expr_p,
 	layout_type (type);
     }
   else if (TREE_CODE (decl) == FIELD_DECL
-	   && TYPE_FOR_JAVA (type) && IS_AGGR_TYPE (type))
+	   && TYPE_FOR_JAVA (type) && MAYBE_CLASS_TYPE_P (type))
     error ("non-static data member %qD has Java class type", decl);
 
   /* Add this declaration to the statement-tree.  This needs to happen
@@ -6854,13 +6854,13 @@ build_ptrmemfunc_type (tree type)
     unqualified_variant
       = build_ptrmemfunc_type (TYPE_MAIN_VARIANT (type));
 
-  t = make_aggr_type (RECORD_TYPE);
+  t = make_class_type (RECORD_TYPE);
   xref_basetypes (t, NULL_TREE);
 
   /* Let the front end know this is a pointer to member function...  */
   TYPE_PTRMEMFUNC_FLAG (t) = 1;
-  /* ... and not really an aggregate.  */
-  SET_IS_AGGR_TYPE (t, 0);
+  /* ... and not really a class type.  */
+  SET_CLASS_TYPE_P (t, 0);
 
   field = build_decl (FIELD_DECL, pfn_identifier, type);
   fields = field;
@@ -9383,7 +9383,7 @@ grokparms (cp_parameter_declarator *first_parm, tree *parms)
 
       if (type != error_mark_node
 	  && TYPE_FOR_JAVA (type)
-	  && IS_AGGR_TYPE (type))
+	  && MAYBE_CLASS_TYPE_P (type))
 	{
 	  error ("parameter %qD has Java class type", decl);
 	  type = error_mark_node;
@@ -9831,10 +9831,11 @@ grok_op_properties (tree decl, bool complain)
 		  if (arg == error_mark_node)
 		    return false;
 
-		  /* IS_AGGR_TYPE, rather than CLASS_TYPE_P, is used
+		  /* MAYBE_CLASS_TYPE_P, rather than CLASS_TYPE_P, is used
 		     because these checks are performed even on
 		     template functions.  */
-		  if (IS_AGGR_TYPE (arg) || TREE_CODE (arg) == ENUMERAL_TYPE)
+		  if (MAYBE_CLASS_TYPE_P (arg)
+		      || TREE_CODE (arg) == ENUMERAL_TYPE)
 		    break;
 		}
 
@@ -9875,7 +9876,7 @@ grok_op_properties (tree decl, bool complain)
 	      if (t == class_type)
 		what = "the same type";
 	      /* Don't force t to be complete here.  */
-	      else if (IS_AGGR_TYPE (t)
+	      else if (MAYBE_CLASS_TYPE_P (t)
 		       && COMPLETE_TYPE_P (t)
 		       && DERIVED_FROM_P (t, class_type))
 		what = "a base class";
@@ -10349,14 +10350,14 @@ xref_tag (enum tag_types tag_code, tree name,
 	}
       else
 	{
-	  t = make_aggr_type (code);
+	  t = make_class_type (code);
 	  TYPE_CONTEXT (t) = context;
 	  t = pushtag (name, t, scope);
 	}
     }
   else
     {
-      if (template_header_p && IS_AGGR_TYPE (t))
+      if (template_header_p && MAYBE_CLASS_TYPE_P (t))
         {
 	  if (!redeclare_class_template (t, current_template_parms))
             POP_TIMEVAR_AND_RETURN (TV_NAME_LOOKUP, error_mark_node);
@@ -10983,7 +10984,7 @@ check_function_type (tree decl, tree current_function_parms)
   if (dependent_type_p (return_type))
     return;
   if (!COMPLETE_OR_VOID_TYPE_P (return_type)
-      || (TYPE_FOR_JAVA (return_type) && IS_AGGR_TYPE (return_type)))
+      || (TYPE_FOR_JAVA (return_type) && MAYBE_CLASS_TYPE_P (return_type)))
     {
       tree args = TYPE_ARG_TYPES (fntype);
 
diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index d7e3d76..367d9eb 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -308,7 +308,7 @@ grok_array_decl (tree array_expr, tree index_exp)
   type = non_reference (type);
 
   /* If they have an `operator[]', use that.  */
-  if (IS_AGGR_TYPE (type) || IS_AGGR_TYPE (TREE_TYPE (index_exp)))
+  if (MAYBE_CLASS_TYPE_P (type) || MAYBE_CLASS_TYPE_P (TREE_TYPE (index_exp)))
     expr = build_new_op (ARRAY_REF, LOOKUP_NORMAL,
 			 array_expr, index_exp, NULL_TREE,
 			 /*overloaded_p=*/NULL);
@@ -443,7 +443,7 @@ check_member_template (tree tmpl)
 
   if (TREE_CODE (decl) == FUNCTION_DECL
       || (TREE_CODE (decl) == TYPE_DECL
-	  && IS_AGGR_TYPE (TREE_TYPE (decl))))
+	  && MAYBE_CLASS_TYPE_P (TREE_TYPE (decl))))
     {
       /* The parser rejects template declarations in local classes.  */
       gcc_assert (!current_function_decl);
@@ -2029,7 +2029,7 @@ constrain_class_visibility (tree type)
 %qT has a field %qD whose type uses the anonymous namespace",
 		       type, t);
 	  }
-	else if (IS_AGGR_TYPE (ftype)
+	else if (MAYBE_CLASS_TYPE_P (ftype)
 		 && vis < VISIBILITY_HIDDEN
 		 && subvis >= VISIBILITY_HIDDEN)
 	  warning (OPT_Wattributes, "\
diff --git a/gcc/cp/dump.c b/gcc/cp/dump.c
index a0f03e8..5ca10fc 100644
--- a/gcc/cp/dump.c
+++ b/gcc/cp/dump.c
@@ -1,5 +1,5 @@
 /* Tree-dumping functionality for intermediate representation.
-   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
+   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
    Free Software Foundation, Inc.
    Written by Mark Mitchell <mark@codesourcery.com>
 
@@ -257,7 +257,7 @@ cp_dump_tree (void* dump_info, tree t)
 	  return true;
 	}
 
-      if (! IS_AGGR_TYPE (t))
+      if (! MAYBE_CLASS_TYPE_P (t))
 	break;
 
       dump_child ("vfld", TYPE_VFIELD (t));
diff --git a/gcc/cp/friend.c b/gcc/cp/friend.c
index c4dfcc5..a4c5e39 100644
--- a/gcc/cp/friend.c
+++ b/gcc/cp/friend.c
@@ -1,6 +1,6 @@
 /* Help friends in C++.
    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-   2007  Free Software Foundation, Inc.
+   2007, 2008  Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -227,7 +227,7 @@ make_friend_class (tree type, tree friend_type, bool complain)
   int class_template_depth = template_class_depth (type);
   int friend_depth = processing_template_decl - class_template_depth;
 
-  if (! IS_AGGR_TYPE (friend_type))
+  if (! MAYBE_CLASS_TYPE_P (friend_type))
     {
       error ("invalid type %qT declared %<friend%>", friend_type);
       return;
@@ -408,7 +408,7 @@ do_friend (tree ctype, tree declarator, tree decl,
 	   bool funcdef_flag)
 {
   gcc_assert (TREE_CODE (decl) == FUNCTION_DECL);
-  gcc_assert (!ctype || IS_AGGR_TYPE (ctype));
+  gcc_assert (!ctype || MAYBE_CLASS_TYPE_P (ctype));
 
   /* Every decl that gets here is a friend of something.  */
   DECL_FRIEND_P (decl) = 1;
diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index 3e6db24..e0700ea 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -1420,19 +1420,19 @@ expand_aggr_init_1 (tree binfo, tree true_exp, tree exp, tree init, int flags)
   expand_default_init (binfo, true_exp, exp, init, flags);
 }
 
-/* Report an error if TYPE is not a user-defined, aggregate type.  If
+/* Report an error if TYPE is not a user-defined, class type.  If
    OR_ELSE is nonzero, give an error message.  */
 
 int
-is_aggr_type (tree type, int or_else)
+is_class_type (tree type, int or_else)
 {
   if (type == error_mark_node)
     return 0;
 
-  if (! IS_AGGR_TYPE (type))
+  if (! CLASS_TYPE_P (type))
     {
       if (or_else)
-	error ("%qT is not an aggregate type", type);
+	error ("%qT is not a class type", type);
       return 0;
     }
   return 1;
@@ -1476,7 +1476,7 @@ build_offset_ref (tree type, tree member, bool address_p)
 				 /*template_p=*/false);
 
   gcc_assert (TYPE_P (type));
-  if (! is_aggr_type (type, 1))
+  if (! is_class_type (type, 1))
     return error_mark_node;
 
   gcc_assert (DECL_P (member) || BASELINK_P (member));
@@ -1921,7 +1921,7 @@ build_new_1 (tree placement, tree type, tree nelts, tree init,
 		    (alloc_fn,
 		     build_tree_list (NULL_TREE, class_addr)));
     }
-  else if (TYPE_FOR_JAVA (elt_type) && IS_AGGR_TYPE (elt_type))
+  else if (TYPE_FOR_JAVA (elt_type) && MAYBE_CLASS_TYPE_P (elt_type))
     {
       error ("Java class %q#T object allocated using placement new", elt_type);
       return error_mark_node;
@@ -2456,7 +2456,7 @@ build_vec_delete_1 (tree base, tree maxindex, tree type,
   /* We should only have 1-D arrays here.  */
   gcc_assert (TREE_CODE (type) != ARRAY_TYPE);
 
-  if (! IS_AGGR_TYPE (type) || TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
+  if (! MAYBE_CLASS_TYPE_P (type) || TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
     goto no_destructor;
 
   /* The below is short by the cookie size.  */
@@ -2736,7 +2736,7 @@ build_vec_init (tree base, tree maxindex, tree init,
 	  num_initialized_elts++;
 
 	  current_stmt_tree ()->stmts_are_full_exprs_p = 1;
-	  if (IS_AGGR_TYPE (type) || TREE_CODE (type) == ARRAY_TYPE)
+	  if (MAYBE_CLASS_TYPE_P (type) || TREE_CODE (type) == ARRAY_TYPE)
 	    finish_expr_stmt (build_aggr_init (baseref, elt, 0));
 	  else
 	    finish_expr_stmt (build_modify_expr (baseref, NOP_EXPR,
@@ -2967,7 +2967,7 @@ build_delete (tree type, tree addr, special_function_kind auto_delete,
 	      complete_p = false;
 	    }
 	}
-      if (VOID_TYPE_P (type) || !complete_p || !IS_AGGR_TYPE (type))
+      if (VOID_TYPE_P (type) || !complete_p || !MAYBE_CLASS_TYPE_P (type))
 	/* Call the builtin operator delete.  */
 	return build_builtin_delete_call (addr);
       if (TREE_SIDE_EFFECTS (addr))
@@ -3000,7 +3000,7 @@ build_delete (tree type, tree addr, special_function_kind auto_delete,
       addr = convert_force (build_pointer_type (type), addr, 0);
     }
 
-  gcc_assert (IS_AGGR_TYPE (type));
+  gcc_assert (MAYBE_CLASS_TYPE_P (type));
 
   if (TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
     {
diff --git a/gcc/cp/lex.c b/gcc/cp/lex.c
index 06c0bc2..adf793b 100644
--- a/gcc/cp/lex.c
+++ b/gcc/cp/lex.c
@@ -801,7 +801,7 @@ cxx_make_type (enum tree_code code)
   tree t = make_node (code);
 
   /* Create lang_type structure.  */
-  if (IS_AGGR_TYPE_CODE (code)
+  if (RECORD_OR_UNION_CODE_P (code)
       || code == BOUND_TEMPLATE_TEMPLATE_PARM)
     {
       struct lang_type *pi = GGC_CNEW (struct lang_type);
@@ -816,7 +816,7 @@ cxx_make_type (enum tree_code code)
     }
 
   /* Set up some flags that give proper default behavior.  */
-  if (IS_AGGR_TYPE_CODE (code))
+  if (RECORD_OR_UNION_CODE_P (code))
     {
       struct c_fileinfo *finfo = get_fileinfo (input_filename);
       SET_CLASSTYPE_INTERFACE_UNKNOWN_X (t, finfo->interface_unknown);
@@ -827,13 +827,10 @@ cxx_make_type (enum tree_code code)
 }
 
 tree
-make_aggr_type (enum tree_code code)
+make_class_type (enum tree_code code)
 {
   tree t = cxx_make_type (code);
-
-  if (IS_AGGR_TYPE_CODE (code))
-    SET_IS_AGGR_TYPE (t, 1);
-
+  SET_CLASS_TYPE_P (t, 1);
   return t;
 }
 
diff --git a/gcc/cp/method.c b/gcc/cp/method.c
index 3ef73fb..c8061bb 100644
--- a/gcc/cp/method.c
+++ b/gcc/cp/method.c
@@ -1,7 +1,7 @@
 /* Handle the hair of processing (but not expanding) inline functions.
    Also manage function and variable name overloading.
    Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
    Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)
 
@@ -507,7 +507,7 @@ use_thunk (tree thunk_fndecl, bool emit_p)
 		t = build3 (COND_EXPR, TREE_TYPE (t), cond, t,
 			    cp_convert (TREE_TYPE (t), integer_zero_node));
 	    }
-	  if (IS_AGGR_TYPE (TREE_TYPE (t)))
+	  if (MAYBE_CLASS_TYPE_P (TREE_TYPE (t)))
 	    t = build_cplus_new (TREE_TYPE (t), t);
 	  finish_return_stmt (t);
 	}
diff --git a/gcc/cp/name-lookup.c b/gcc/cp/name-lookup.c
index 9a95d15..75bc6bd 100644
--- a/gcc/cp/name-lookup.c
+++ b/gcc/cp/name-lookup.c
@@ -1737,7 +1737,7 @@ constructor_name_p (tree name, tree type)
 {
   tree ctor_name;
 
-  gcc_assert (IS_AGGR_TYPE (type));
+  gcc_assert (MAYBE_CLASS_TYPE_P (type));
 
   if (!name)
     return false;
@@ -1916,7 +1916,7 @@ push_overloaded_decl (tree decl, int flags, bool is_friend)
       if (TREE_CODE (old) == TYPE_DECL && DECL_ARTIFICIAL (old))
 	{
 	  tree t = TREE_TYPE (old);
-	  if (IS_AGGR_TYPE (t) && warn_shadow
+	  if (MAYBE_CLASS_TYPE_P (t) && warn_shadow
 	      && (! DECL_IN_SYSTEM_HEADER (decl)
 		  || ! DECL_IN_SYSTEM_HEADER (old)))
 	    warning (OPT_Wshadow, "%q#D hides constructor for %q#T", decl, t);
@@ -2826,7 +2826,7 @@ do_class_using_decl (tree scope, tree name)
       error ("%<%T::%D%> names destructor", scope, name);
       return NULL_TREE;
     }
-  if (IS_AGGR_TYPE (scope) && constructor_name_p (name, scope))
+  if (MAYBE_CLASS_TYPE_P (scope) && constructor_name_p (name, scope))
     {
       error ("%<%T::%D%> names constructor", scope, name);
       return NULL_TREE;
@@ -3765,7 +3765,7 @@ lookup_qualified_name (tree scope, tree name, bool is_type_p, bool complain)
       if (qualified_lookup_using_namespace (name, scope, &binding, flags))
 	t = binding.value;
     }
-  else if (is_aggr_type (scope, complain))
+  else if (is_class_type (scope, complain))
     t = lookup_member (scope, name, 2, is_type_p);
 
   if (!t)
@@ -4826,7 +4826,8 @@ maybe_process_template_type_declaration (tree type, int is_friend,
     ;
   else
     {
-      gcc_assert (IS_AGGR_TYPE (type) || TREE_CODE (type) == ENUMERAL_TYPE);
+      gcc_assert (MAYBE_CLASS_TYPE_P (type)
+		  || TREE_CODE (type) == ENUMERAL_TYPE);
 
       if (processing_template_decl)
 	{
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index 3ffac73..8156822 100644
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -14224,7 +14224,7 @@ cp_parser_class_name (cp_parser *parser,
     }
   else if (TREE_CODE (decl) != TYPE_DECL
 	   || TREE_TYPE (decl) == error_mark_node
-	   || !IS_AGGR_TYPE (TREE_TYPE (decl)))
+	   || !MAYBE_CLASS_TYPE_P (TREE_TYPE (decl)))
     decl = error_mark_node;
 
   if (decl == error_mark_node)
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index d03ea9f..628a445 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -238,7 +238,7 @@ finish_member_template_decl (tree decl)
       type = TREE_TYPE (decl);
       if (type == error_mark_node)
 	return error_mark_node;
-      if (IS_AGGR_TYPE (type)
+      if (MAYBE_CLASS_TYPE_P (type)
 	  && CLASSTYPE_TEMPLATE_INFO (type)
 	  && !CLASSTYPE_TEMPLATE_SPECIALIZATION (type))
 	{
@@ -3041,7 +3041,7 @@ process_template_parm (tree list, tree parm, bool is_non_type,
 
       if (parm && TREE_CODE (parm) == TEMPLATE_DECL)
 	{
-	  t = make_aggr_type (TEMPLATE_TEMPLATE_PARM);
+	  t = cxx_make_type (TEMPLATE_TEMPLATE_PARM);
 	  /* This is for distinguishing between real templates and template
 	     template parameters */
 	  TREE_TYPE (parm) = t;
@@ -3050,7 +3050,7 @@ process_template_parm (tree list, tree parm, bool is_non_type,
 	}
       else
 	{
-	  t = make_aggr_type (TEMPLATE_TYPE_PARM);
+	  t = cxx_make_type (TEMPLATE_TYPE_PARM);
 	  /* parm is either IDENTIFIER_NODE or NULL_TREE.  */
 	  decl = build_decl (TYPE_DECL, parm, t);
 	}
@@ -5473,7 +5473,7 @@ lookup_template_class (tree d1,
       if (template)
 	context = DECL_CONTEXT (template);
     }
-  else if (TREE_CODE (d1) == TYPE_DECL && IS_AGGR_TYPE (TREE_TYPE (d1)))
+  else if (TREE_CODE (d1) == TYPE_DECL && MAYBE_CLASS_TYPE_P (TREE_TYPE (d1)))
     {
       tree type = TREE_TYPE (d1);
 
@@ -5489,7 +5489,7 @@ lookup_template_class (tree d1,
 	}
     }
   else if (TREE_CODE (d1) == ENUMERAL_TYPE
-	   || (TYPE_P (d1) && IS_AGGR_TYPE (d1)))
+	   || (TYPE_P (d1) && MAYBE_CLASS_TYPE_P (d1)))
     {
       template = TYPE_TI_TEMPLATE (d1);
       d1 = DECL_NAME (template);
@@ -5762,7 +5762,7 @@ lookup_template_class (tree d1,
 	}
       else
 	{
-	  t = make_aggr_type (TREE_CODE (template_type));
+	  t = make_class_type (TREE_CODE (template_type));
 	  CLASSTYPE_DECLARED_CLASS (t)
 	    = CLASSTYPE_DECLARED_CLASS (template_type);
 	  SET_CLASSTYPE_IMPLICIT_INSTANTIATION (t);
@@ -8673,7 +8673,7 @@ tsubst_function_type (tree t,
   else
     {
       tree r = TREE_TYPE (TREE_VALUE (arg_types));
-      if (! IS_AGGR_TYPE (r))
+      if (! MAYBE_CLASS_TYPE_P (r))
 	{
 	  /* [temp.deduct]
 
@@ -9202,7 +9202,7 @@ tsubst (tree t, tree args, tsubst_flags_t complain, tree in_decl)
     case OFFSET_TYPE:
       {
 	r = tsubst (TYPE_OFFSET_BASETYPE (t), args, complain, in_decl);
-	if (r == error_mark_node || !IS_AGGR_TYPE (r))
+	if (r == error_mark_node || !MAYBE_CLASS_TYPE_P (r))
 	  {
 	    /* [temp.deduct]
 
@@ -9345,7 +9345,7 @@ tsubst (tree t, tree args, tsubst_flags_t complain, tree in_decl)
 	if (ctx == error_mark_node || f == error_mark_node)
 	  return error_mark_node;
 
-	if (!IS_AGGR_TYPE (ctx))
+	if (!MAYBE_CLASS_TYPE_P (ctx))
 	  {
 	    if (complain & tf_error)
 	      error ("%qT is not a class, struct, or union type", ctx);
@@ -11211,7 +11211,7 @@ tsubst_copy_and_build (tree t,
 	/* We do not want to process the index of aggregate
 	   initializers as they are identifier nodes which will be
 	   looked up by digest_init.  */
-	process_index_p = !(type && IS_AGGR_TYPE (type));
+	process_index_p = !(type && MAYBE_CLASS_TYPE_P (type));
 
 	n = VEC_copy (constructor_elt, gc, CONSTRUCTOR_ELTS (t));
         newlen = VEC_length (constructor_elt, n);
@@ -12325,7 +12325,7 @@ get_template_base (tree tparms, tree targs, tree parm, tree arg)
   tree rval = NULL_TREE;
   tree binfo;
 
-  gcc_assert (IS_AGGR_TYPE_CODE (TREE_CODE (arg)));
+  gcc_assert (RECORD_OR_UNION_CODE_P (TREE_CODE (arg)));
 
   binfo = TYPE_BINFO (complete_type (arg));
   if (!binfo)
@@ -14317,7 +14317,7 @@ bt_instantiate_type_proc (binding_entry entry, void *data)
 {
   tree storage = *(tree *) data;
 
-  if (IS_AGGR_TYPE (entry->type)
+  if (MAYBE_CLASS_TYPE_P (entry->type)
       && !uses_template_parms (CLASSTYPE_TI_ARGS (entry->type)))
     do_type_instantiation (TYPE_MAIN_DECL (entry->type), storage, 0);
 }
diff --git a/gcc/cp/rtti.c b/gcc/cp/rtti.c
index f2085e4..8bd51c8 100644
--- a/gcc/cp/rtti.c
+++ b/gcc/cp/rtti.c
@@ -503,7 +503,7 @@ build_dynamic_cast_1 (tree type, tree expr)
 	break;
       /* Fall through.  */
     case REFERENCE_TYPE:
-      if (! IS_AGGR_TYPE (TREE_TYPE (type)))
+      if (! MAYBE_CLASS_TYPE_P (TREE_TYPE (type)))
 	{
 	  errstr = "target is not pointer or reference to class";
 	  goto fail;
@@ -530,7 +530,7 @@ build_dynamic_cast_1 (tree type, tree expr)
 	  errstr = "source is not a pointer";
 	  goto fail;
 	}
-      if (! IS_AGGR_TYPE (TREE_TYPE (exprtype)))
+      if (! MAYBE_CLASS_TYPE_P (TREE_TYPE (exprtype)))
 	{
 	  errstr = "source is not a pointer to class";
 	  goto fail;
@@ -548,7 +548,7 @@ build_dynamic_cast_1 (tree type, tree expr)
       /* T is a reference type, v shall be an lvalue of a complete class
 	 type, and the result is an lvalue of the type referred to by T.  */
 
-      if (! IS_AGGR_TYPE (TREE_TYPE (exprtype)))
+      if (! MAYBE_CLASS_TYPE_P (TREE_TYPE (exprtype)))
 	{
 	  errstr = "source is not of class type";
 	  goto fail;
@@ -1167,7 +1167,7 @@ create_pseudo_type_info (int tk, const char *real_name, ...)
     }
 
   /* Create the pseudo type.  */
-  pseudo_type = make_aggr_type (RECORD_TYPE);
+  pseudo_type = make_class_type (RECORD_TYPE);
   finish_builtin_struct (pseudo_type, pseudo_name, fields, NULL_TREE);
   CLASSTYPE_AS_BASE (pseudo_type) = pseudo_type;
 
@@ -1326,7 +1326,7 @@ create_tinfo_types (void)
     fields = field;
 
     ti = VEC_index (tinfo_s, tinfo_descs, TK_TYPE_INFO_TYPE);
-    ti->type = make_aggr_type (RECORD_TYPE);
+    ti->type = make_class_type (RECORD_TYPE);
     ti->vtable = NULL_TREE;
     ti->name = NULL_TREE;
     finish_builtin_struct (ti->type, "__type_info_pseudo",
@@ -1364,7 +1364,7 @@ create_tinfo_types (void)
 
     ti = VEC_index (tinfo_s, tinfo_descs, TK_BASE_TYPE);
 
-    ti->type = make_aggr_type (RECORD_TYPE);
+    ti->type = make_class_type (RECORD_TYPE);
     ti->vtable = NULL_TREE;
     ti->name = NULL_TREE;
     finish_builtin_struct (ti->type, "__base_class_type_info_pseudo",
diff --git a/gcc/cp/search.c b/gcc/cp/search.c
index 13e252e..cee2924 100644
--- a/gcc/cp/search.c
+++ b/gcc/cp/search.c
@@ -1,7 +1,8 @@
 /* Breadth-first and depth-first routines for
    searching multiple-inheritance lattice for GNU C++.
    Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+   1999, 2000, 2002, 2003, 2004, 2005, 2007, 2008
+   Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)
 
 This file is part of GCC.
@@ -1212,7 +1213,7 @@ lookup_member (tree xbasetype, tree name, int protect, bool want_type)
     }
   else
     {
-      if (!IS_AGGR_TYPE_CODE (TREE_CODE (xbasetype)))
+      if (!RECORD_OR_UNION_CODE_P (TREE_CODE (xbasetype)))
 	return NULL_TREE;
       type = xbasetype;
       xbasetype = NULL_TREE;
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index d17a22e..74d9ae5 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -2254,9 +2254,9 @@ begin_class_definition (tree t, tree attributes)
       t = error_mark_node;
     }
 
-  if (t == error_mark_node || ! IS_AGGR_TYPE (t))
+  if (t == error_mark_node || ! MAYBE_CLASS_TYPE_P (t))
     {
-      t = make_aggr_type (RECORD_TYPE);
+      t = make_class_type (RECORD_TYPE);
       pushtag (make_anon_name (), t, /*tag_scope=*/ts_current);
     }
 
@@ -2265,7 +2265,7 @@ begin_class_definition (tree t, tree attributes)
 
   if (TYPE_BEING_DEFINED (t))
     {
-      t = make_aggr_type (TREE_CODE (t));
+      t = make_class_type (TREE_CODE (t));
       pushtag (TYPE_IDENTIFIER (t), t, /*tag_scope=*/ts_current);
     }
   maybe_process_partial_specialization (t);
@@ -2469,8 +2469,11 @@ finish_base_specifier (tree base, tree access, bool virtual_p)
       error ("invalid base-class specification");
       result = NULL_TREE;
     }
-  else if (! is_aggr_type (base, 1))
-    result = NULL_TREE;
+  else if (! MAYBE_CLASS_TYPE_P (base))
+    {
+      error ("%qT is not a class type", base);
+      result = NULL_TREE;
+    }
   else
     {
       if (cp_type_quals (base) != 0)
@@ -2988,7 +2991,7 @@ finish_typeof (tree expr)
 
   if (type_dependent_expression_p (expr))
     {
-      type = make_aggr_type (TYPEOF_TYPE);
+      type = cxx_make_type (TYPEOF_TYPE);
       TYPEOF_TYPE_EXPR (type) = expr;
       SET_TYPE_STRUCTURAL_EQUALITY (type);
 
@@ -4030,7 +4033,7 @@ cxx_omp_predetermined_sharing (tree decl)
   if (TREE_STATIC (decl))
     {
       tree ctx = CP_DECL_CONTEXT (decl);
-      if (TYPE_P (ctx) && IS_AGGR_TYPE (ctx))
+      if (TYPE_P (ctx) && MAYBE_CLASS_TYPE_P (ctx))
 	return OMP_CLAUSE_DEFAULT_SHARED;
     }
 
@@ -4123,7 +4126,7 @@ finish_decltype_type (tree expr, bool id_expression_or_member_access_p)
 
   if (type_dependent_expression_p (expr))
     {
-      type = make_aggr_type (DECLTYPE_TYPE);
+      type = cxx_make_type (DECLTYPE_TYPE);
       DECLTYPE_TYPE_EXPR (type) = expr;
       DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P (type)
         = id_expression_or_member_access_p;
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 44a2e78..927b3de 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -1238,7 +1238,7 @@ bind_template_template_parm (tree t, tree newargs)
   tree decl = TYPE_NAME (t);
   tree t2;
 
-  t2 = make_aggr_type (BOUND_TEMPLATE_TEMPLATE_PARM);
+  t2 = cxx_make_type (BOUND_TEMPLATE_TEMPLATE_PARM);
   decl = build_decl (TYPE_DECL, DECL_NAME (decl), NULL_TREE);
 
   /* These nodes have to be created to reflect new TYPE_DECL and template
@@ -1958,7 +1958,7 @@ error_type (tree arg)
     ;
   else if (real_lvalue_p (arg))
     type = build_reference_type (lvalue_type (arg));
-  else if (IS_AGGR_TYPE (type))
+  else if (MAYBE_CLASS_TYPE_P (type))
     type = lvalue_type (arg);
 
   return type;
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index fa4c3ad..036f93e 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -1,6 +1,6 @@
 /* Build expressions with type checking for C++ compiler.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
    Hacked by Michael Tiemann (tiemann@cygnus.com)
 
@@ -4630,7 +4630,7 @@ unary_complex_lvalue (enum tree_code code, tree arg)
     if (TREE_CODE (targ) == SAVE_EXPR)
       targ = TREE_OPERAND (targ, 0);
 
-    if (TREE_CODE (targ) == CALL_EXPR && IS_AGGR_TYPE (TREE_TYPE (targ)))
+    if (TREE_CODE (targ) == CALL_EXPR && MAYBE_CLASS_TYPE_P (TREE_TYPE (targ)))
       {
 	if (TREE_CODE (arg) == SAVE_EXPR)
 	  targ = arg;
@@ -5751,7 +5751,7 @@ build_modify_expr (tree lhs, enum tree_code modifycode, tree rhs)
 	  TREE_SIDE_EFFECTS (result) = 1;
 	  return result;
 	}
-      else if (! IS_AGGR_TYPE (lhstype))
+      else if (! MAYBE_CLASS_TYPE_P (lhstype))
 	/* Do the default thing.  */;
       else
 	{
@@ -5772,7 +5772,7 @@ build_modify_expr (tree lhs, enum tree_code modifycode, tree rhs)
       if (modifycode == NOP_EXPR)
 	{
 	  /* `operator=' is not an inheritable operator.  */
-	  if (! IS_AGGR_TYPE (lhstype))
+	  if (! MAYBE_CLASS_TYPE_P (lhstype))
 	    /* Do the default thing.  */;
 	  else
 	    {
@@ -5790,8 +5790,10 @@ build_modify_expr (tree lhs, enum tree_code modifycode, tree rhs)
 	  /* A binary op has been requested.  Combine the old LHS
 	     value with the RHS producing the value we should actually
 	     store into the LHS.  */
+	  gcc_assert (!((TREE_CODE (lhstype) == REFERENCE_TYPE
+			 && MAYBE_CLASS_TYPE_P (TREE_TYPE (lhstype)))
+			|| MAYBE_CLASS_TYPE_P (lhstype)));
 
-	  gcc_assert (!PROMOTES_TO_AGGR_TYPE (lhstype, REFERENCE_TYPE));
 	  lhs = stabilize_reference (lhs);
 	  newrhs = cp_build_binary_op (modifycode, lhs, rhs);
 	  if (newrhs == error_mark_node)
@@ -6512,7 +6514,7 @@ convert_for_initialization (tree exp, tree type, tree rhs, int flags,
 
   type = complete_type (type);
 
-  if (IS_AGGR_TYPE (type))
+  if (MAYBE_CLASS_TYPE_P (type))
     return ocp_convert (type, rhs, CONV_IMPLICIT|CONV_FORCE_TEMP, flags);
 
   return convert_for_assignment (type, rhs, errtype, fndecl, parmnum);
diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c
index 66c35d4..c48a785 100644
--- a/gcc/cp/typeck2.c
+++ b/gcc/cp/typeck2.c
@@ -1,7 +1,7 @@
 /* Report error messages, build initializers, and perform
    some front-end optimizations for C++ compiler.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007
+   1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
    Hacked by Michael Tiemann (tiemann@cygnus.com)
 
@@ -583,7 +583,7 @@ store_init_value (tree decl, tree init)
   if (TREE_CODE (type) == ERROR_MARK)
     return NULL_TREE;
 
-  if (IS_AGGR_TYPE (type))
+  if (MAYBE_CLASS_TYPE_P (type))
     {
       gcc_assert (TYPE_HAS_TRIVIAL_INIT_REF (type)
 		  || TREE_CODE (init) == CONSTRUCTOR);
@@ -848,7 +848,7 @@ process_init_constructor_array (tree type, tree init)
 	      we can't rely on the back end to do it for us, so build up
 	      TARGET_EXPRs.  If the type in question is a class, just build
 	      one up; if it's an array, recurse.  */
-	    if (IS_AGGR_TYPE (TREE_TYPE (type)))
+	    if (MAYBE_CLASS_TYPE_P (TREE_TYPE (type)))
 		next = build_functional_cast (TREE_TYPE (type), NULL_TREE);
 	    else
 		next = build_constructor (NULL_TREE, NULL);
@@ -935,7 +935,7 @@ process_init_constructor_record (tree type, tree init)
 	     default-initialization, we can't rely on the back end to do it
 	     for us, so build up TARGET_EXPRs.  If the type in question is
 	     a class, just build one up; if it's an array, recurse.  */
-	  if (IS_AGGR_TYPE (TREE_TYPE (field)))
+	  if (MAYBE_CLASS_TYPE_P (TREE_TYPE (field)))
 	    next = build_functional_cast (TREE_TYPE (field), NULL_TREE);
 	  else
 	    next = build_constructor (NULL_TREE, NULL);
@@ -1161,7 +1161,7 @@ build_x_arrow (tree expr)
       expr = build_non_dependent_expr (expr);
     }
 
-  if (IS_AGGR_TYPE (type))
+  if (MAYBE_CLASS_TYPE_P (type))
     {
       while ((expr = build_new_op (COMPONENT_REF, LOOKUP_NORMAL, expr,
 				   NULL_TREE, NULL_TREE,
@@ -1240,7 +1240,7 @@ build_m_component_ref (tree datum, tree component)
     }
 
   objtype = TYPE_MAIN_VARIANT (TREE_TYPE (datum));
-  if (! IS_AGGR_TYPE (objtype))
+  if (! MAYBE_CLASS_TYPE_P (objtype))
     {
       error ("cannot apply member pointer %qE to %qE, which is of "
 	     "non-class type %qT",
@@ -1330,7 +1330,7 @@ build_functional_cast (tree exp, tree parms)
       return t;
     }
 
-  if (! IS_AGGR_TYPE (type))
+  if (! MAYBE_CLASS_TYPE_P (type))
     {
       if (parms == NULL_TREE)
 	return cp_convert (type, integer_zero_node);