X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftr%2Ftype.c;h=123e7faa91dbf5ee9bd18c0049b2248073619ae6;hb=270f2356557d43d3e7ea36dacac46cd1e54a902d;hp=12fe92ade92edbd33a47e466449494b1fe52b126;hpb=c133b9328891403004aabc67e05f1541e286e98b;p=libfirm

diff --git a/ir/tr/type.c b/ir/tr/type.c
index 12fe92ade..123e7faa9 100644
--- a/ir/tr/type.c
+++ b/ir/tr/type.c
@@ -1,627 +1,2393 @@
-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer &
-**          Goetz Lindenmaier
-**
-** type.c: datastructures to hold type information.
-*/
+/*
+ * Copyright (C) 1995-2011 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file    type.c
+ * @brief   Representation of types.
+ * @author  Goetz Lindenmaier, Michael Beck
+ * @version $Id$
+ * @brief
+ *
+ *  Implementation of the datastructure to hold
+ *  type information.
+ *
+ *  This module supplies a datastructure to represent all types
+ *  known in the compiled program.  This includes types specified
+ *  in the program as well as types defined by the language.  In the
+ *  view of the intermediate representation there is no difference
+ *  between these types.
+ *
+ *  There exist several kinds of types, arranged by the structure of
+ *  the type.  A type is described by a set of attributes.  Some of
+ *  these attributes are common to all types, others depend on the
+ *  kind of the type.
+ *
+ *  Types are different from the modes defined in irmode:  Types are
+ *  on the level of the programming language, modes at the level of
+ *  the target processor.
+ */
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+
+#include "type_t.h"
+
+#include "xmalloc.h"
+#include "irprog_t.h"
+#include "ircons.h"
+#include "tpop_t.h"
+#include "tv_t.h"
+#include "irhooks.h"
+#include "irtools.h"
+#include "entity_t.h"
+#include "error.h"
+#include "dbginfo.h"
+
+#include "array.h"
+
+ir_type *firm_none_type;
+ir_type *get_none_type(void)
+{
+	return firm_none_type;
+}
+
+ir_type *firm_code_type;
+ir_type *get_code_type(void)
+{
+	return firm_code_type;
+}
+
+ir_type *firm_unknown_type;
+ir_type *get_unknown_type(void)
+{
+	return firm_unknown_type;
+}
+
+/* Suffixes added to types used for pass-by-value representations. */
+static ident *value_params_suffix = NULL;
+static ident *value_ress_suffix = NULL;
+
+void ir_init_type(void)
+{
+	value_params_suffix = new_id_from_str(VALUE_PARAMS_SUFFIX);
+	value_ress_suffix   = new_id_from_str(VALUE_RESS_SUFFIX);
+
+	/* construct none and unknown type. */
+	firm_none_type = new_type(tpop_none, mode_BAD, NULL);
+	set_type_size_bytes(firm_none_type, 0);
+	set_type_state (firm_none_type, layout_fixed);
+	remove_irp_type(firm_none_type);
+
+	firm_code_type = new_type(tpop_code, mode_ANY, NULL);
+	set_type_state(firm_code_type, layout_fixed);
+	remove_irp_type(firm_code_type);
+
+	firm_unknown_type = new_type(tpop_unknown, mode_ANY, NULL);
+	set_type_size_bytes(firm_unknown_type, 0);
+	set_type_state (firm_unknown_type, layout_fixed);
+	remove_irp_type(firm_unknown_type);
+}
+
+void ir_finish_type(void)
+{
+	if (firm_none_type != NULL) {
+		free_type(firm_none_type);
+		firm_none_type = NULL;
+	}
+	if (firm_code_type != NULL) {
+		free_type(firm_code_type);
+		firm_code_type = NULL;
+	}
+	if (firm_unknown_type != NULL) {
+		free_type(firm_unknown_type);
+		firm_unknown_type = NULL;
+	}
+	value_params_suffix = NULL;
+	value_ress_suffix = NULL;
+}
+
+/** the global type visited flag */
+ir_visited_t firm_type_visited;
+
+void (set_master_type_visited)(ir_visited_t val)
+{
+	_set_master_type_visited(val);
+}
+
+ir_visited_t (get_master_type_visited)(void)
+{
+	return _get_master_type_visited();
+}
+
+void (inc_master_type_visited)(void)
+{
+	_inc_master_type_visited();
+}
+
+ir_type *new_type(const tp_op *type_op, ir_mode *mode, type_dbg_info *db)
+{
+	ir_type *res;
+	size_t node_size;
+
+	node_size = offsetof(ir_type, attr) +  type_op->attr_size;
+	res = (ir_type*)xmalloc(node_size);
+	memset(res, 0, node_size);
+
+	res->kind       = k_type;
+	res->type_op    = type_op;
+	res->mode       = mode;
+	res->visibility = ir_visibility_external;
+	res->flags      = tf_none;
+	res->size       = 0;
+	res->align      = 0;
+	res->visit      = 0;
+	res->link       = NULL;
+	res->dbi        = db;
+	res->assoc_type = NULL;
+#ifdef DEBUG_libfirm
+	res->nr         = get_irp_new_node_nr();
+#endif /* defined DEBUG_libfirm */
+
+	add_irp_type(res);   /* Remember the new type global. */
+
+	return res;
+}
+
+void free_type(ir_type *tp)
+{
+	const tp_op *op = get_type_tpop(tp);
+
+	if ((get_type_tpop(tp) == tpop_none) || (get_type_tpop(tp) == tpop_unknown)
+			|| (get_type_tpop(tp) == tpop_code))
+		return;
+	/* Remove from list of all types */
+	remove_irp_type(tp);
+	/* Free the attributes of the type. */
+	free_type_attrs(tp);
+	/* Free entities automatically allocated with the ir_type */
+	if (op->ops.free_auto_entities)
+		op->ops.free_auto_entities(tp);
+	/* And now the type itself... */
+	tp->kind = k_BAD;
+	free(tp);
+}
+
+void free_type_entities(ir_type *tp)
+{
+	const tp_op *tpop = get_type_tpop(tp);
+
+	if (tpop->ops.free_entities)
+		tpop->ops.free_entities(tp);
+}
+
+void free_type_attrs(ir_type *tp)
+{
+	const tp_op *tpop = get_type_tpop(tp);
+
+	if (tpop->ops.free_attrs)
+		tpop->ops.free_attrs(tp);
+}
+
+void *(get_type_link)(const ir_type *tp)
+{
+	return _get_type_link(tp);
+}
+
+void (set_type_link)(ir_type *tp, void *l)
+{
+	_set_type_link(tp, l);
+}
+
+const tp_op *(get_type_tpop)(const ir_type *tp)
+{
+	return _get_type_tpop(tp);
+}
+
+ident *(get_type_tpop_nameid)(const ir_type *tp)
+{
+	return _get_type_tpop_nameid(tp);
+}
+
+const char* get_type_tpop_name(const ir_type *tp)
+{
+	assert(tp && tp->kind == k_type);
+	return get_id_str(tp->type_op->name);
+}
+
+tp_opcode (get_type_tpop_code)(const ir_type *tp)
+{
+	return _get_type_tpop_code(tp);
+}
+
+ir_mode *(get_type_mode)(const ir_type *tp)
+{
+	return _get_type_mode(tp);
+}
+
+void set_type_mode(ir_type *tp, ir_mode *mode)
+{
+	const tp_op *tpop = get_type_tpop(tp);
+
+	if (tpop->ops.set_type_mode)
+		tpop->ops.set_type_mode(tp, mode);
+	else
+		assert(0 && "setting a mode is NOT allowed for this type");
+}
+
+/* Outputs a unique number for this node */
+long get_type_nr(const ir_type *tp)
+{
+	assert(tp);
+#ifdef DEBUG_libfirm
+	return tp->nr;
+#else
+	return (long)PTR_TO_INT(tp);
+#endif
+}
+
+unsigned (get_type_size_bytes)(const ir_type *tp)
+{
+	return _get_type_size_bytes(tp);
+}
+
+ir_visibility get_type_visibility(const ir_type *tp)
+{
+	assert(is_type(tp));
+	return tp->visibility;
+}
+
+void set_type_visibility(ir_type *tp, ir_visibility v)
+{
+	assert(is_type(tp));
+	tp->visibility = v;
+}
+
+void set_type_size_bytes(ir_type *tp, unsigned size)
+{
+	const tp_op *tpop = get_type_tpop(tp);
+
+	if (tpop->ops.set_type_size)
+		tpop->ops.set_type_size(tp, size);
+	else
+		assert(0 && "Cannot set size for this type");
+}
+
+unsigned get_type_alignment_bytes(ir_type *tp)
+{
+	unsigned align = 1;
+
+	if (tp->align > 0)
+		return tp->align;
+
+	/* alignment NOT set calculate it "on demand" */
+	if (tp->mode)
+		align = (get_mode_size_bits(tp->mode) + 7) >> 3;
+	else if (is_Array_type(tp))
+		align = get_type_alignment_bytes(get_array_element_type(tp));
+	else if (is_compound_type(tp)) {
+		int i, n = get_compound_n_members(tp);
+
+		align = 0;
+		for (i = 0; i < n; ++i) {
+			ir_type  *t = get_entity_type(get_compound_member(tp, i));
+			unsigned a  = get_type_alignment_bytes(t);
+
+			if (a > align)
+				align = a;
+		}
+	} else if (is_Method_type(tp)) {
+		align = 0;
+	}
+
+	/* write back */
+	tp->align = align;
+
+	return align;
+}
+
+void set_type_alignment_bytes(ir_type *tp, unsigned align)
+{
+	assert(tp && tp->kind == k_type);
+	/* Methods don't have an alignment. */
+	if (tp->type_op != type_method) {
+		tp->align = align;
+	}
+}
+
+const char *get_type_state_name(ir_type_state s)
+{
+#define X(a)    case a: return #a;
+	switch (s) {
+		X(layout_undefined);
+		X(layout_fixed);
+	}
+	return "<unknown>";
+#undef X
+}
+
+ir_type_state (get_type_state)(const ir_type *tp)
+{
+	return _get_type_state(tp);
+}
+
+void set_type_state(ir_type *tp, ir_type_state state)
+{
+	assert(tp && tp->kind == k_type);
+
+	if ((tp->type_op == type_pointer) || (tp->type_op == type_primitive) ||
+		(tp->type_op == type_method))
+		return;
+
+	/* Just a correctness check: */
+	if (state == layout_fixed) {
+		size_t i;
+		switch (get_type_tpop_code(tp)) {
+		case tpo_class:
+			if (tp != get_glob_type()) {
+				size_t n_mem = get_class_n_members(tp);
+				for (i = 0; i < n_mem; i++) {
+					assert(get_entity_offset(get_class_member(tp, i)) > -1);
+					/* TR ??
+					assert(is_Method_type(get_entity_type(get_class_member(tp, i))) ||
+					(get_entity_allocation(get_class_member(tp, i)) == allocation_automatic));
+					*/
+				}
+			}
+			break;
+		case tpo_struct:
+			for (i = 0; i < get_struct_n_members(tp); i++) {
+				assert(get_entity_offset(get_struct_member(tp, i)) > -1);
+			}
+			break;
+		case tpo_union:
+			/* ?? */
+			break;
+		case tpo_array:
+			/* ??
+			   Check order?
+			   Assure that only innermost dimension is dynamic? */
+			break;
+		case tpo_enumeration: {
+#ifndef NDEBUG
+			assert(get_type_mode(tp) != NULL);
+			size_t n_enums = get_enumeration_n_enums(tp);
+			for (i = 0; i < n_enums; ++i) {
+				ir_enum_const *ec = get_enumeration_const(tp, i);
+				ir_tarval     *tv = get_enumeration_value(ec);
+				assert(tv != NULL && tv != tarval_bad);
+			}
+#endif
+			break;
+		}
+		default: break;
+		} /* switch (tp) */
+	}
+	if (state == layout_fixed)
+		tp->flags |= tf_layout_fixed;
+	else
+		tp->flags &= ~tf_layout_fixed;
+}
+
+ir_visited_t (get_type_visited)(const ir_type *tp)
+{
+	return _get_type_visited(tp);
+}
+
+void (set_type_visited)(ir_type *tp, ir_visited_t num)
+{
+	_set_type_visited(tp, num);
+}
+
+void (mark_type_visited)(ir_type *tp)
+{
+	_mark_type_visited(tp);
+}
+
+int (type_visited)(const ir_type *tp)
+{
+	return _type_visited(tp);
+}
+
+int (type_not_visited)(const ir_type *tp)
+{
+	return _type_not_visited(tp);
+}
+
+type_dbg_info *(get_type_dbg_info)(const ir_type *tp)
+{
+	return _get_type_dbg_info(tp);
+}
+
+void (set_type_dbg_info)(ir_type *tp, type_dbg_info *db)
+{
+	_set_type_dbg_info(tp, db);
+}
+
+int (is_type)(const void *thing)
+{
+	return _is_type(thing);
+}
+
+/* Checks whether two types are structural equal.*/
+int equal_type(ir_type *typ1, ir_type *typ2)
+{
+	ir_entity **m;
+	ir_type **t;
+	size_t i;
+	size_t j;
+
+	if (typ1 == typ2) return 1;
+
+	if ((get_type_tpop_code(typ1) != get_type_tpop_code(typ2)) ||
+	    typ1->name != typ2->name ||
+	    (get_type_mode(typ1) != get_type_mode(typ2)) ||
+	    (get_type_state(typ1) != get_type_state(typ2)))
+		return 0;
+	if ((get_type_state(typ1) == layout_fixed) &&
+		(get_type_size_bytes(typ1) != get_type_size_bytes(typ2)))
+		return 0;
+
+	switch (get_type_tpop_code(typ1)) {
+	case tpo_class:
+		if (get_class_n_members(typ1) != get_class_n_members(typ2)) return 0;
+		if (get_class_n_subtypes(typ1) != get_class_n_subtypes(typ2)) return 0;
+		if (get_class_n_supertypes(typ1) != get_class_n_supertypes(typ2)) return 0;
+		if (get_class_peculiarity(typ1) != get_class_peculiarity(typ2)) return 0;
+		/** Compare the members **/
+		m = ALLOCANZ(ir_entity*, get_class_n_members(typ1));
+		/* First sort the members of typ2 */
+		for (i = 0; i < get_class_n_members(typ1); i++) {
+			ir_entity *e1 = get_class_member(typ1, i);
+			for (j = 0; j < get_class_n_members(typ2); j++) {
+				ir_entity *e2 = get_class_member(typ2, j);
+				if (get_entity_name(e1) == get_entity_name(e2))
+					m[i] = e2;
+			}
+		}
+		for (i = 0; i < get_class_n_members(typ1); i++) {
+			if (!m[i] || get_class_member(typ1, i) != m[i])
+				return 0;
+		}
+		/** Compare the supertypes **/
+		t = ALLOCANZ(ir_type*, get_class_n_supertypes(typ1));
+		/* First sort the supertypes of typ2 */
+		for (i = 0; i < get_class_n_supertypes(typ1); i++) {
+			ir_type *t1 = get_class_supertype(typ1, i);
+			for (j = 0; j < get_class_n_supertypes(typ2); j++) {
+				ir_type *t2 = get_class_supertype(typ2, j);
+				if (t2->name == t1->name)
+					t[i] = t2;
+			}
+		}
+		for (i = 0; i < get_class_n_supertypes(typ1); i++) {
+			if (!t[i]  ||  /* Found no counterpart */
+				get_class_supertype(typ1, i) != t[i])
+				return 0;
+		}
+		break;
+
+	case tpo_struct:
+		if (get_struct_n_members(typ1) != get_struct_n_members(typ2)) return 0;
+		m = ALLOCANZ(ir_entity*, get_struct_n_members(typ1));
+		/* First sort the members of lt */
+		for (i = 0; i < get_struct_n_members(typ1); i++) {
+			ir_entity *e1 = get_struct_member(typ1, i);
+			for (j = 0; j < get_struct_n_members(typ2); j++) {
+				ir_entity *e2 = get_struct_member(typ2, j);
+				if (get_entity_name(e1) == get_entity_name(e2))
+					m[i] = e2;
+			}
+		}
+		for (i = 0; i < get_struct_n_members(typ1); i++) {
+			if (!m[i] || get_struct_member(typ1, i) != m[i])
+				return 0;
+		}
+		break;
+
+	case tpo_method: {
+		size_t n_param1;
+		size_t n_param2;
+
+		if (get_method_variadicity(typ1) != get_method_variadicity(typ2)) return 0;
+		if (get_method_n_ress(typ1)      != get_method_n_ress(typ2)) return 0;
+		if (get_method_calling_convention(typ1) !=
+		    get_method_calling_convention(typ2)) return 0;
+
+		if (get_method_variadicity(typ1) == variadicity_non_variadic) {
+			n_param1 = get_method_n_params(typ1);
+			n_param2 = get_method_n_params(typ2);
+		} else {
+			n_param1 = get_method_first_variadic_param_index(typ1);
+			n_param2 = get_method_first_variadic_param_index(typ2);
+		}
+
+		if (n_param1 != n_param2) return 0;
+
+		for (i = 0; i < n_param1; i++) {
+			if (!equal_type(get_method_param_type(typ1, i), get_method_param_type(typ2, i)))
+				return 0;
+		}
+		for (i = 0; i < get_method_n_ress(typ1); i++) {
+			if (!equal_type(get_method_res_type(typ1, i), get_method_res_type(typ2, i)))
+				return 0;
+		}
+	} break;
+
+	case tpo_union:
+		if (get_union_n_members(typ1) != get_union_n_members(typ2)) return 0;
+		m = ALLOCANZ(ir_entity*, get_union_n_members(typ1));
+		/* First sort the members of lt */
+		for (i = 0; i < get_union_n_members(typ1); i++) {
+			ir_entity *e1 = get_union_member(typ1, i);
+			for (j = 0; j < get_union_n_members(typ2); j++) {
+				ir_entity *e2 = get_union_member(typ2, j);
+				if (get_entity_name(e1) == get_entity_name(e2))
+					m[i] = e2;
+			}
+		}
+		for (i = 0; i < get_union_n_members(typ1); i++) {
+			if (!m[i] || get_union_member(typ1, i) != m[i])
+				return 0;
+		}
+		break;
+
+	case tpo_array:
+		if (get_array_n_dimensions(typ1) != get_array_n_dimensions(typ2))
+			return 0;
+		if (!equal_type(get_array_element_type(typ1), get_array_element_type(typ2)))
+			return 0;
+		for (i = 0; i < get_array_n_dimensions(typ1); i++) {
+			if (get_array_lower_bound(typ1, i) != get_array_lower_bound(typ2, i) ||
+				get_array_upper_bound(typ1, i) != get_array_upper_bound(typ2, i))
+				return 0;
+			if (get_array_order(typ1, i) != get_array_order(typ2, i))
+				assert(0 && "type compare with different dimension orders not implemented");
+		}
+		break;
+
+	case tpo_enumeration:
+		assert(0 && "enumerations not implemented");
+		break;
+
+	case tpo_pointer:
+		if (get_pointer_points_to_type(typ1) != get_pointer_points_to_type(typ2))
+			return 0;
+		break;
+
+	case tpo_primitive:
+		break;
+
+	default: break;
+	}
+	return 1;
+}
+
+int smaller_type(ir_type *st, ir_type *lt)
+{
+	ir_entity **m;
+	size_t i;
+	size_t j;
+	size_t n_st_members;
+
+	if (st == lt) return 1;
+
+	if (get_type_tpop_code(st) != get_type_tpop_code(lt))
+		return 0;
+
+	switch (get_type_tpop_code(st)) {
+	case tpo_class:
+		return is_SubClass_of(st, lt);
+
+	case tpo_struct:
+		n_st_members = get_struct_n_members(st);
+		if (n_st_members != get_struct_n_members(lt))
+			return 0;
+
+		m = ALLOCANZ(ir_entity*, n_st_members);
+		/* First sort the members of lt */
+		for (i = 0; i < n_st_members; ++i) {
+			ir_entity *se = get_struct_member(st, i);
+			size_t n = get_struct_n_members(lt);
+			for (j = 0; j < n; ++j) {
+				ir_entity *le = get_struct_member(lt, j);
+				if (get_entity_name(le) == get_entity_name(se))
+					m[i] = le;
+			}
+		}
+		for (i = 0; i < n_st_members; i++) {
+			if (!m[i]  ||  /* Found no counterpart */
+			    !smaller_type(get_entity_type(get_struct_member(st, i)), get_entity_type(m[i])))
+				return 0;
+		}
+		break;
+
+	case tpo_method: {
+		size_t n_param1, n_param2;
+
+		/** FIXME: is this still 1? */
+		if (get_method_variadicity(st) != get_method_variadicity(lt)) return 0;
+		if (get_method_n_ress(st) != get_method_n_ress(lt)) return 0;
+		if (get_method_calling_convention(st) !=
+		    get_method_calling_convention(lt)) return 0;
+
+		if (get_method_variadicity(st) == variadicity_non_variadic) {
+			n_param1 = get_method_n_params(st);
+			n_param2 = get_method_n_params(lt);
+		} else {
+			n_param1 = get_method_first_variadic_param_index(st);
+			n_param2 = get_method_first_variadic_param_index(lt);
+		}
+
+		if (n_param1 != n_param2) return 0;
+
+		for (i = 0; i < get_method_n_params(st); i++) {
+			if (!smaller_type(get_method_param_type(st, i), get_method_param_type(lt, i)))
+				return 0;
+		}
+		for (i = 0; i < get_method_n_ress(st); i++) {
+			if (!smaller_type(get_method_res_type(st, i), get_method_res_type(lt, i)))
+				return 0;
+		}
+	} break;
+
+	case tpo_union:
+		n_st_members = get_union_n_members(st);
+		if (n_st_members != get_union_n_members(lt)) return 0;
+		m = ALLOCANZ(ir_entity*, n_st_members);
+		/* First sort the members of lt */
+		for (i = 0; i < n_st_members; ++i) {
+			ir_entity *se = get_union_member(st, i);
+			size_t n = get_union_n_members(lt);
+			for (j = 0; j < n; ++j) {
+				ir_entity *le = get_union_member(lt, j);
+				if (get_entity_name(le) == get_entity_name(se))
+					m[i] = le;
+			}
+		}
+		for (i = 0; i < n_st_members; ++i) {
+			if (!m[i]  ||  /* Found no counterpart */
+				!smaller_type(get_entity_type(get_union_member(st, i)), get_entity_type(m[i])))
+				return 0;
+		}
+		break;
+
+	case tpo_array: {
+		ir_type *set, *let;  /* small/large elt. ir_type */
+		if (get_array_n_dimensions(st) != get_array_n_dimensions(lt))
+			return 0;
+		set = get_array_element_type(st);
+		let = get_array_element_type(lt);
+		if (set != let) {
+			/* If the element types are different, set must be convertible
+			   to let, and they must have the same size so that address
+			   computations work out.  To have a size the layout must
+			   be fixed. */
+			if ((get_type_state(set) != layout_fixed) ||
+			    (get_type_state(let) != layout_fixed))
+				return 0;
+			if (!smaller_type(set, let) ||
+			    get_type_size_bytes(set) != get_type_size_bytes(let))
+				return 0;
+		}
+		for (i = 0; i < get_array_n_dimensions(st); i++) {
+			if (get_array_lower_bound(lt, i))
+				if (get_array_lower_bound(st, i) != get_array_lower_bound(lt, i))
+					return 0;
+				if (get_array_upper_bound(lt, i))
+					if (get_array_upper_bound(st, i) != get_array_upper_bound(lt, i))
+						return 0;
+		}
+	} break;
+
+	case tpo_enumeration:
+		assert(0 && "enumerations not implemented");
+		break;
+
+	case tpo_pointer:
+		if (!smaller_type(get_pointer_points_to_type(st), get_pointer_points_to_type(lt)))
+			return 0;
+		break;
+
+	case tpo_primitive:
+		if (!smaller_mode(get_type_mode(st), get_type_mode(lt)))
+			return 0;
+		break;
+
+	default: break;
+	}
+	return 1;
+}
+
+
+ir_type *new_d_type_class(ident *name, type_dbg_info *db)
+{
+	ir_type *res;
+
+	res = new_type(type_class, NULL, db);
+	res->name = name;
+
+	res->attr.ca.members     = NEW_ARR_F (ir_entity *, 0);
+	res->attr.ca.subtypes    = NEW_ARR_F (ir_type *, 0);
+	res->attr.ca.supertypes  = NEW_ARR_F (ir_type *, 0);
+	res->attr.ca.peculiarity = peculiarity_existent;
+	res->attr.ca.type_info   = NULL;
+	res->attr.ca.vtable_size = 0;
+	res->attr.ca.clss_flags  = cf_none;
+	res->attr.ca.dfn         = 0;
+	hook_new_type(res);
+	return res;
+}
+
+ir_type *new_type_class(ident *name)
+{
+	return new_d_type_class (name, NULL);
+}
+
+void free_class_entities(ir_type *clss)
+{
+	int i;
+	assert(clss && (clss->type_op == type_class));
+	for (i = get_class_n_members(clss) - 1; i >= 0; --i)
+		free_entity(get_class_member(clss, i));
+	/* do NOT free the type info here. It belongs to another class */
+}
+
+void free_class_attrs(ir_type *clss)
+{
+	assert(clss && (clss->type_op == type_class));
+	DEL_ARR_F(clss->attr.ca.members);
+	DEL_ARR_F(clss->attr.ca.subtypes);
+	DEL_ARR_F(clss->attr.ca.supertypes);
+}
+
+ident *get_class_ident(const ir_type *clss)
+{
+	assert(clss->type_op == type_class);
+	return clss->name;
+}
+
+const char *get_class_name(const ir_type *clss)
+{
+	if (get_class_ident(clss) == NULL)
+		return NULL;
+	return get_id_str(get_class_ident(clss));
+}
+
+static void add_class_member(ir_type *clss, ir_entity *member)
+{
+	assert(clss && (clss->type_op == type_class));
+	assert(clss != get_entity_type(member) && "recursive type");
+	ARR_APP1 (ir_entity *, clss->attr.ca.members, member);
+}
+
+size_t (get_class_n_members)(const ir_type *clss)
+{
+	return _get_class_n_members(clss);
+}
+
+size_t get_class_member_index(const ir_type *clss, ir_entity *mem)
+{
+	size_t i, n;
+	assert(clss && (clss->type_op == type_class));
+	for (i = 0, n = get_class_n_members(clss); i < n; ++i) {
+		if (get_class_member(clss, i) == mem)
+			return i;
+	}
+	return (size_t)-1;
+}
+
+ir_entity *(get_class_member)(const ir_type *clss, size_t pos)
+{
+	return _get_class_member(clss, pos);
+}
+
+ir_entity *get_class_member_by_name(ir_type *clss, ident *name)
+{
+	int i, n_mem;
+	assert(clss && (clss->type_op == type_class));
+	n_mem = get_class_n_members(clss);
+	for (i = 0; i < n_mem; ++i) {
+		ir_entity *mem = get_class_member(clss, i);
+		if (get_entity_ident(mem) == name) return mem;
+	}
+	return NULL;
+}
+
+static void remove_class_member(ir_type *clss, ir_entity *member)
+{
+	size_t i;
+	assert(clss && (clss->type_op == type_class));
+	for (i = 0; i < ARR_LEN(clss->attr.ca.members); ++i) {
+		if (clss->attr.ca.members[i] == member) {
+			for (; i < ARR_LEN(clss->attr.ca.members) - 1; ++i)
+				clss->attr.ca.members[i] = clss->attr.ca.members[i + 1];
+			ARR_SETLEN(ir_entity*, clss->attr.ca.members, ARR_LEN(clss->attr.ca.members) - 1);
+			break;
+		}
+	}
+}
+
+void add_class_subtype(ir_type *clss, ir_type *subtype)
+{
+	size_t i;
+	assert(clss->type_op == type_class);
+	ARR_APP1 (ir_type *, clss->attr.ca.subtypes, subtype);
+	for (i = 0; i < get_class_n_supertypes(subtype); i++) {
+		if (get_class_supertype(subtype, i) == clss)
+			/* Class already registered */
+			return;
+	}
+	ARR_APP1(ir_type *, subtype->attr.ca.supertypes, clss);
+}
+
+size_t get_class_n_subtypes(const ir_type *clss)
+{
+	assert(clss->type_op == type_class);
+	return ARR_LEN (clss->attr.ca.subtypes);
+}
+
+ir_type *get_class_subtype(ir_type *clss, size_t pos)
+{
+	assert(clss->type_op == type_class);
+	assert(pos < get_class_n_subtypes(clss));
+	return clss->attr.ca.subtypes[pos];
+}
+
+size_t get_class_subtype_index(ir_type *clss, const ir_type *subclass)
+{
+	size_t i, n_subtypes = get_class_n_subtypes(clss);
+	assert(is_Class_type(subclass));
+	for (i = 0; i < n_subtypes; ++i) {
+		if (get_class_subtype(clss, i) == subclass)
+			return i;
+	}
+	return (size_t)-1;
+}
+
+void set_class_subtype(ir_type *clss, ir_type *subtype, size_t pos)
+{
+	assert(clss->type_op == type_class);
+	assert(pos < get_class_n_subtypes(clss));
+	clss->attr.ca.subtypes[pos] = subtype;
+}
+
+void remove_class_subtype(ir_type *clss, ir_type *subtype)
+{
+	size_t i;
+	assert(clss && (clss->type_op == type_class));
+	for (i = 0; i < ARR_LEN(clss->attr.ca.subtypes); ++i) {
+		if (clss->attr.ca.subtypes[i] == subtype) {
+			for (; i < ARR_LEN(clss->attr.ca.subtypes) - 1; ++i)
+				clss->attr.ca.subtypes[i] = clss->attr.ca.subtypes[i+1];
+			ARR_SETLEN(ir_type*, clss->attr.ca.subtypes, ARR_LEN(clss->attr.ca.subtypes) - 1);
+			break;
+		}
+	}
+}
+
+void add_class_supertype(ir_type *clss, ir_type *supertype)
+{
+	size_t i;
+	size_t n;
+	assert(clss && (clss->type_op == type_class));
+	assert(supertype && (supertype -> type_op == type_class));
+	ARR_APP1 (ir_type *, clss->attr.ca.supertypes, supertype);
+	for (i = 0, n = get_class_n_subtypes(supertype); i < n; ++i) {
+		if (get_class_subtype(supertype, i) == clss)
+			/* Class already registered */
+			return;
+	}
+	ARR_APP1(ir_type *, supertype->attr.ca.subtypes, clss);
+}
+
+size_t get_class_n_supertypes(const ir_type *clss)
+{
+	assert(clss->type_op == type_class);
+	return ARR_LEN(clss->attr.ca.supertypes);
+}
+
+size_t get_class_supertype_index(ir_type *clss, ir_type *super_clss)
+{
+	size_t i, n_supertypes = get_class_n_supertypes(clss);
+	assert(super_clss && (super_clss->type_op == type_class));
+	for (i = 0; i < n_supertypes; i++) {
+		if (get_class_supertype(clss, i) == super_clss)
+			return i;
+	}
+	return (size_t)-1;
+}
+
+ir_type *get_class_supertype(ir_type *clss, size_t pos)
+{
+	assert(clss->type_op == type_class);
+	assert(pos < get_class_n_supertypes(clss));
+	return clss->attr.ca.supertypes[pos];
+}
+
+void set_class_supertype(ir_type *clss, ir_type *supertype, size_t pos)
+{
+	assert(clss->type_op == type_class);
+	assert(pos < get_class_n_supertypes(clss));
+	clss->attr.ca.supertypes[pos] = supertype;
+}
+
+void remove_class_supertype(ir_type *clss, ir_type *supertype)
+{
+	size_t i;
+	assert(clss && (clss->type_op == type_class));
+	for (i = 0; i < ARR_LEN(clss->attr.ca.supertypes); ++i) {
+		if (clss->attr.ca.supertypes[i] == supertype) {
+			for (; i < ARR_LEN(clss->attr.ca.supertypes) - 1; ++i)
+				clss->attr.ca.supertypes[i] = clss->attr.ca.supertypes[i+1];
+			ARR_SETLEN(ir_type*, clss->attr.ca.supertypes, ARR_LEN(clss->attr.ca.supertypes) - 1);
+			break;
+		}
+	}
+}
+
+ir_entity *get_class_type_info(const ir_type *clss)
+{
+	return clss->attr.ca.type_info;
+}
+
+void set_class_type_info(ir_type *clss, ir_entity *ent)
+{
+	clss->attr.ca.type_info = ent;
+	if (ent)
+		ent->repr_class = clss;
+}
+
+ir_peculiarity get_class_peculiarity(const ir_type *clss)
+{
+	assert(clss && (clss->type_op == type_class));
+	return clss->attr.ca.peculiarity;
+}
+
+void set_class_peculiarity(ir_type *clss, ir_peculiarity pec)
+{
+	assert(clss && (clss->type_op == type_class));
+	assert(pec != peculiarity_inherited);  /* There is no inheritance of types in libFirm. */
+	clss->attr.ca.peculiarity = pec;
+}
+
+unsigned (get_class_vtable_size)(const ir_type *clss)
+{
+	return _get_class_vtable_size(clss);
+}
+
+void (set_class_vtable_size)(ir_type *clss, unsigned size)
+{
+	_set_class_vtable_size(clss, size);
+}
+
+int (is_class_final)(const ir_type *clss)
+{
+	return _is_class_final(clss);
+}
+
+void (set_class_final)(ir_type *clss, int flag)
+{
+	_set_class_final(clss, flag);
+}
+
+int (is_class_interface)(const ir_type *clss)
+{
+	return _is_class_interface(clss);
+}
+
+void (set_class_interface)(ir_type *clss, int flag)
+{
+	_set_class_interface(clss, flag);
+}
+
+int (is_class_abstract)(const ir_type *clss)
+{
+	 return _is_class_abstract(clss);
+}
+
+void (set_class_abstract)(ir_type *clss, int final)
+{
+	_set_class_abstract(clss, final);
+}
+
+void set_class_dfn(ir_type *clss, int dfn)
+{
+	clss->attr.ca.dfn = dfn;
+}
+
+int get_class_dfn(const ir_type *clss)
+{
+	return (clss->attr.ca.dfn);
+}
+
+int (is_Class_type)(const ir_type *clss)
+{
+	return _is_class_type(clss);
+}
+
+void set_class_mode(ir_type *tp, ir_mode *mode)
+{
+	/* for classes and structs we allow to set a mode if the layout is fixed AND the size matches */
+	assert(get_type_state(tp) == layout_fixed &&
+	       tp->size == get_mode_size_bytes(mode) && "mode don't match class layout");
+	tp->mode = mode;
+}
+
+void set_class_size(ir_type *tp, unsigned size)
+{
+	tp->size = size;
+}
+
+
+ir_type *new_d_type_struct(ident *name, type_dbg_info *db)
+{
+	ir_type *res = new_type(type_struct, NULL, db);
+	res->name = name;
+
+	res->attr.sa.members = NEW_ARR_F(ir_entity *, 0);
+	hook_new_type(res);
+	return res;
+}
+
+ir_type *new_type_struct(ident *name)
+{
+	return new_d_type_struct (name, NULL);
+}
+
+void free_struct_entities(ir_type *strct)
+{
+	int i;
+	assert(strct && (strct->type_op == type_struct));
+	for (i = get_struct_n_members(strct)-1; i >= 0; --i)
+		free_entity(get_struct_member(strct, i));
+}
 
-# include "type.h"
-# include "irprog.h"  /* So that constructors can add the type to global
-			 data structure. */
-# include "array.h"
-# include "ident_t.h"
+void free_struct_attrs(ir_type *strct)
+{
+	assert(strct && (strct->type_op == type_struct));
+	DEL_ARR_F(strct->attr.sa.members);
+}
 
-unsigned long type_visited = 0;
+ident *get_struct_ident(const ir_type *strct)
+{
+	assert(strct->type_op == type_struct);
+	return strct->name;
+}
 
-void
-init (void)
+const char *get_struct_name(const ir_type *strct)
 {
+	if (get_struct_ident(strct) == NULL)
+		return NULL;
+	return get_id_str(get_struct_ident(strct));
 }
 
-/*******************************************************************/
-/** TYPE_CLASS                                                    **/
-/*******************************************************************/
+size_t get_struct_n_members(const ir_type *strct)
+{
+	assert(strct->type_op == type_struct);
+	return ARR_LEN(strct->attr.sa.members);
+}
 
-type_class *
-new_type_class (ident *name)//, int members)
+static void add_struct_member(ir_type *strct, ir_entity *member)
 {
-  type_class *res;
+	assert(strct && (strct->type_op == type_struct));
+	assert(get_type_tpop(get_entity_type(member)) != type_method);
+	assert(strct != get_entity_type(member) && "recursive type");
+	ARR_APP1 (ir_entity *, strct->attr.sa.members, member);
+}
 
-  res = (type_class *) xmalloc (sizeof (type_class));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_class;
-  res->name = name;
+ir_entity *get_struct_member(const ir_type *strct, size_t pos)
+{
+	assert(strct && (strct->type_op == type_struct));
+	assert(pos < get_struct_n_members(strct));
+	return strct->attr.sa.members[pos];
+}
 
-  res->members = NEW_ARR_F (entity *, 1);
-  res->subtypes = NEW_ARR_F (type_class *, 1);
-  res->supertypes = NEW_ARR_F (type_class *, 1);
+size_t get_struct_member_index(const ir_type *strct, ir_entity *mem)
+{
+	size_t i, n;
+	assert(strct && (strct->type_op == type_struct));
+	for (i = 0, n = get_struct_n_members(strct); i < n; ++i) {
+		if (get_struct_member(strct, i) == mem)
+			return i;
+	}
+	return (size_t)-1;
+}
 
-  res->visit = 0;
+static void remove_struct_member(ir_type *strct, ir_entity *member)
+{
+	size_t i;
+	assert(strct && (strct->type_op == type_struct));
+	for (i = 0; i < ARR_LEN(strct->attr.sa.members); ++i) {
+		if (strct->attr.sa.members[i] == member) {
+			for (; i < ARR_LEN(strct->attr.sa.members) - 1; ++i)
+				strct->attr.sa.members[i] = strct->attr.sa.members[i+1];
+			ARR_SETLEN(ir_entity*, strct->attr.sa.members, ARR_LEN(strct->attr.sa.members) - 1);
+			break;
+		}
+	}
+}
 
-  return res;
+int (is_Struct_type)(const ir_type *strct)
+{
+	return _is_struct_type(strct);
 }
 
-/* manipulate fields of type_class */
-const char *
-get_class_name  (type_class *class) {
-  assert(class);
-  return id_to_str(class->name);
+void set_struct_mode(ir_type *tp, ir_mode *mode)
+{
+	/* for classes and structs we allow to set a mode if the layout is fixed AND the size matches */
+	assert(get_type_state(tp) == layout_fixed &&
+	       tp->size == get_mode_size_bytes(mode) && "mode don't match struct layout");
+	tp->mode = mode;
 }
 
-/* field: ident */
-ident *
-get_class_ident (type_class *class) {
-  assert(class);
-  return class->name;
+void set_struct_size(ir_type *tp, unsigned size)
+{
+	tp->size = size;
 }
 
-/*
-void   set_class_name  (type_class *class, char *name);
-void   set_class_ident (type_class *class, ident* ident);
-*/
 
-/* field: member */
-void
-add_class_member (type_class *class, entity *member)
+/**
+ * Lazy construction of value argument / result representation.
+ * Constructs a struct type and its member.  The types of the members
+ * are passed in the argument list.
+ *
+ * @param name    name of the type constructed
+ * @param len     number of fields
+ * @param tps     array of field types with length len
+ */
+static ir_type *build_value_type(char const* name, int len, tp_ent_pair *tps)
+{
+	int i;
+	ir_type *res = new_type_struct(new_id_from_str(name));
+	res->flags |= tf_value_param_type;
+	/* Remove type from type list.  Must be treated differently than other types. */
+	remove_irp_type(res);
+	for (i = 0; i < len; i++) {
+		ident *id = tps[i].param_name;
+
+		/* use res as default if corresponding type is not yet set. */
+		ir_type *elt_type = tps[i].tp ? tps[i].tp : res;
+
+		/* use the parameter name if specified */
+		if (id == NULL) {
+			id = new_id_from_str("elt");
+		}
+		tps[i].ent = new_entity(res, id, elt_type);
+		set_entity_allocation(tps[i].ent, allocation_parameter);
+	}
+	return res;
+}
+
+ir_type *new_d_type_method(size_t n_param, size_t n_res, type_dbg_info *db)
 {
-  ARR_APP1 (entity *, class->members, member);
+	ir_type *res;
+
+	assert((get_mode_size_bits(mode_P_code) % 8 == 0) && "unorthodox modes not implemented");
+	res = new_type(type_method, mode_P_code, db);
+	res->flags                       |= tf_layout_fixed;
+	res->size                         = get_mode_size_bytes(mode_P_code);
+	res->attr.ma.n_params             = n_param;
+	res->attr.ma.params               = XMALLOCNZ(tp_ent_pair, n_param);
+	res->attr.ma.value_params         = NULL;
+	res->attr.ma.n_res                = n_res;
+	res->attr.ma.res_type             = XMALLOCNZ(tp_ent_pair, n_res);
+	res->attr.ma.value_ress           = NULL;
+	res->attr.ma.variadicity          = variadicity_non_variadic;
+	res->attr.ma.first_variadic_param = -1;
+	res->attr.ma.additional_properties = mtp_no_property;
+	hook_new_type(res);
+	return res;
 }
 
-entity *
-get_class_member (type_class *class, int pos)
+ir_type *new_type_method(size_t n_param, size_t n_res)
 {
-  assert (class);
-  return class->members[pos+1];
+	return new_d_type_method(n_param, n_res, NULL);
 }
 
-void
-set_class_member (type_class *class, entity *member, int pos)
+ir_type *clone_type_method(ir_type *tp)
 {
-  class->members[pos+1] = member;
+	ir_type  *res;
+	ir_mode  *mode;
+	size_t    n_params;
+	size_t    n_res;
+	type_dbg_info *db;
+
+	assert(is_Method_type(tp));
+
+	mode     = tp->mode;
+	n_params = tp->attr.ma.n_params;
+	n_res    = tp->attr.ma.n_res;
+	db       = tp->dbi;
+
+	res = new_type(type_method, mode, db);
+
+	res->flags                         = tp->flags;
+	res->assoc_type                    = tp->assoc_type;
+	res->size                          = tp->size;
+	res->attr.ma.n_params              = n_params;
+	res->attr.ma.params                = XMALLOCN(tp_ent_pair, n_params);
+	memcpy(res->attr.ma.params, tp->attr.ma.params, n_params * sizeof(res->attr.ma.params[0]));
+	res->attr.ma.value_params          = tp->attr.ma.value_params;
+	res->attr.ma.n_res                 = n_res;
+	res->attr.ma.res_type              = XMALLOCN(tp_ent_pair, n_res);
+	memcpy(res->attr.ma.res_type, tp->attr.ma.res_type, n_res * sizeof(res->attr.ma.res_type[0]));
+	res->attr.ma.value_ress            = tp->attr.ma.value_ress;
+	res->attr.ma.variadicity           = tp->attr.ma.variadicity;
+	res->attr.ma.first_variadic_param  = tp->attr.ma.first_variadic_param;
+	res->attr.ma.additional_properties = tp->attr.ma.additional_properties;
+	res->attr.ma.irg_calling_conv      = tp->attr.ma.irg_calling_conv;
+	hook_new_type(res);
+	return res;
 }
 
-int
-get_class_n_member (type_class *class)
+void free_method_entities(ir_type *method)
 {
-  int res;
+	(void) method;
+	assert(method && (method->type_op == type_method));
+}
 
-  assert(class);
-  res = (ARR_LEN (class->members))-1;
-  return res;
+void free_method_attrs(ir_type *method)
+{
+	assert(method && (method->type_op == type_method));
+	free(method->attr.ma.params);
+	free(method->attr.ma.res_type);
+	/* cannot free it yet, type could be cloned ...
+	if (method->attr.ma.value_params) {
+		free_type_entities(method->attr.ma.value_params);
+		free_type(method->attr.ma.value_params);
+	}
+	*/
+	if (method->attr.ma.value_ress) {
+		free_type_entities(method->attr.ma.value_ress);
+		free_type(method->attr.ma.value_ress);
+	}
 }
 
-/* field: subtype */
-void
-add_class_subtype (type_class *class,  type_class *subtype)
+size_t (get_method_n_params)(const ir_type *method)
 {
-  ARR_APP1 (type_class *, class->subtypes, subtype);
+	return _get_method_n_params(method);
 }
 
-type_class *
-get_class_subtype (type_class *class, int pos)
+ir_type *get_method_param_type(ir_type *method, size_t pos)
 {
-  assert (class);
-  return class->subtypes[pos+1];
+	ir_type *res;
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_params(method));
+	res = method->attr.ma.params[pos].tp;
+	assert(res != NULL && "empty method param type");
+	return res;
 }
 
-void
-set_class_subtype (type_class *class, type_class *subtype, int pos)
+void set_method_param_type(ir_type *method, size_t pos, ir_type *tp)
 {
-  class->subtypes[pos+1] = subtype;
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_params(method));
+	method->attr.ma.params[pos].tp = tp;
+	/* If information constructed set pass-by-value representation. */
+	if (method->attr.ma.value_params) {
+		assert(get_method_n_params(method) == get_struct_n_members(method->attr.ma.value_params));
+		set_entity_type(get_struct_member(method->attr.ma.value_params, pos), tp);
+	}
 }
 
-int
-get_class_n_subtype (type_class *class)
+ident *get_method_param_ident(ir_type *method, size_t pos)
 {
-  assert(class);
-  return (ARR_LEN (class->subtypes))-1;
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_params(method));
+	return method->attr.ma.params[pos].param_name;
 }
 
-/* field: supertype */
-void
-add_class_supertype (type_class *class, type_class *supertype)
+const char *get_method_param_name(ir_type *method, size_t pos)
 {
-  ARR_APP1 (type_class *, class->supertypes, supertype);
+	ident *id = get_method_param_ident(method, pos);
+	return id ? get_id_str(id) : NULL;
 }
 
-type_class *
-get_class_supertype (type_class *class, int pos)
+void set_method_param_ident(ir_type *method, size_t pos, ident *id)
 {
-  assert (class);
-  return class->supertypes[pos+1];
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_params(method));
+	method->attr.ma.params[pos].param_name = id;
 }
 
-void
-set_class_supertype (type_class *class, type_class *supertype, int pos)
+ir_entity *get_method_value_param_ent(ir_type *method, size_t pos)
 {
-  class->supertypes[pos+1] = supertype;
+	assert(method && (method->type_op == type_method));
+	assert(pos < get_method_n_params(method));
+
+	if (!method->attr.ma.value_params) {
+		/* parameter value type not created yet, build */
+		method->attr.ma.value_params = build_value_type("<value param>",
+			get_method_n_params(method), method->attr.ma.params);
+	}
+	/*
+	 * build_value_type() sets the method->attr.ma.value_params type as default if
+	 * no type is set!
+	 */
+	assert((get_entity_type(method->attr.ma.params[pos].ent) != method->attr.ma.value_params)
+	       && "param type not yet set");
+	return method->attr.ma.params[pos].ent;
 }
 
-int
-get_class_n_supertype (type_class *class)
+void set_method_value_param_type(ir_type *method, ir_type *tp)
 {
-  assert(class);
-  return (ARR_LEN (class->supertypes))-1;
+	size_t i;
+	size_t n;
+
+	assert(method && (method->type_op == type_method));
+	assert(is_value_param_type(tp));
+	assert(get_method_n_params(method) == get_struct_n_members(tp));
+
+	method->attr.ma.value_params = tp;
+
+	n = get_struct_n_members(tp);
+	for (i = 0; i < n; i++) {
+		ir_entity *ent = get_struct_member(tp, i);
+		method->attr.ma.params[i].ent = ent;
+	}
 }
 
-/*******************************************************************/
-/** TYPE_STRCT                                                   **/
-/*******************************************************************/
+ir_type *get_method_value_param_type(const ir_type *method)
+{
+	assert(method && (method->type_op == type_method));
+	return method->attr.ma.value_params;
+}
 
-type_strct *
-new_type_strct (ident *name)//, int members)
+size_t (get_method_n_ress)(const ir_type *method)
 {
-  type_strct *res;
+	return _get_method_n_ress(method);
+}
 
-  res = (type_strct *) xmalloc (sizeof (type_strct));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_strct;
-  res->name = name;
+ir_type *get_method_res_type(ir_type *method, size_t pos)
+{
+	ir_type *res;
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_ress(method));
+	res = method->attr.ma.res_type[pos].tp;
+	assert(res != NULL && "empty method return type");
+	return res;
+}
 
-  res->members = NEW_ARR_F (entity *, 1);
-  res->visit = 0;
+void set_method_res_type(ir_type *method, size_t pos, ir_type *tp)
+{
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_ress(method));
+	/* set the result ir_type */
+	method->attr.ma.res_type[pos].tp = tp;
+	/* If information constructed set pass-by-value representation. */
+	if (method->attr.ma.value_ress) {
+		assert(get_method_n_ress(method) == get_struct_n_members(method->attr.ma.value_ress));
+		set_entity_type(get_struct_member(method->attr.ma.value_ress, pos), tp);
+	}
+}
 
-  return res;
+ir_entity *get_method_value_res_ent(ir_type *method, size_t pos)
+{
+	assert(method->type_op == type_method);
+	assert(pos < get_method_n_ress(method));
+
+	if (!method->attr.ma.value_ress) {
+		/* result value type not created yet, build */
+		method->attr.ma.value_ress = build_value_type("<value result>",
+			get_method_n_ress(method), method->attr.ma.res_type);
+	}
+	/*
+	 * build_value_type() sets the method->attr.ma.value_ress type as default if
+	 * no type is set!
+	 */
+	assert((get_entity_type(method->attr.ma.res_type[pos].ent) != method->attr.ma.value_ress)
+	       && "result type not yet set");
+
+	return method->attr.ma.res_type[pos].ent;
 }
 
-/* manipulate fields of type_strct */
+ir_type *get_method_value_res_type(const ir_type *method)
+{
+	assert(method->type_op == type_method);
+	return method->attr.ma.value_ress;
+}
 
-const char *
-get_strct_name  (type_strct *strct) {
-  assert(strct);
-  return ID_TO_STR(strct->name);
+const char *get_variadicity_name(ir_variadicity vari)
+{
+#define X(a)    case a: return #a
+	switch (vari) {
+	X(variadicity_non_variadic);
+	X(variadicity_variadic);
+	default:
+		return "BAD VALUE";
+	}
+#undef X
 }
 
+ir_variadicity get_method_variadicity(const ir_type *method)
+{
+	assert(method && (method->type_op == type_method));
+	return method->attr.ma.variadicity;
+}
 
-ident *
-get_strct_ident (type_strct *strct) {
-  assert(strct);
-  return strct->name;
+void set_method_variadicity(ir_type *method, ir_variadicity vari)
+{
+	assert(method && (method->type_op == type_method));
+	method->attr.ma.variadicity = vari;
 }
 
-int
-get_strct_n_member (type_strct *strct)
+size_t get_method_first_variadic_param_index(const ir_type *method)
 {
-  int res;
+	assert(method->type_op == type_method);
+
+	if (method->attr.ma.variadicity == variadicity_non_variadic)
+		return (size_t)-1;
 
-  assert(strct);
-  res = (ARR_LEN (strct->members))-1;
-  return res;
+	if (method->attr.ma.first_variadic_param == (size_t)-1)
+		return get_method_n_params(method);
+	return method->attr.ma.first_variadic_param;
 }
 
-void
-add_strct_member (type_strct *strct, entity *member)
+void set_method_first_variadic_param_index(ir_type *method, size_t index)
 {
-  ARR_APP1 (type_strct *, strct->members, member);
+	assert(method->type_op == type_method);
+	assert(index <= get_method_n_params(method));
+
+	method->attr.ma.first_variadic_param = index;
 }
 
-entity *
-get_strct_member (type_strct *strct, int pos)
+mtp_additional_properties (get_method_additional_properties)(const ir_type *method)
 {
-  assert (strct);
-  return strct->members[pos+1];
+	return _get_method_additional_properties(method);
 }
 
-void
-set_strct_member (type_strct *strct, int pos, entity *member)
+void (set_method_additional_properties)(ir_type *method, mtp_additional_properties mask)
 {
-  strct->members[pos+1] = member;
+	_set_method_additional_properties(method, mask);
 }
 
-/*
-void   set_strct_name  (type_strct *strct, char *name);
-void   set_strct_ident (type_strct *strct, ident* ident);
-*/
+void (add_method_additional_properties)(ir_type *method,
+                                        mtp_additional_properties flag)
+{
+	_add_method_additional_properties(method, flag);
+}
 
+unsigned (get_method_calling_convention)(const ir_type *method)
+{
+	return _get_method_calling_convention(method);
+}
 
-/*******************************************************************/
-/** TYPE_METHOD                                                   **/
-/*******************************************************************/
+void (set_method_calling_convention)(ir_type *method, unsigned cc_mask)
+{
+	_set_method_calling_convention(method, cc_mask);
+}
 
-/* create a new type_method */
-type_method *
-new_type_method (ident *name, int arity, int n_res)
+unsigned get_method_n_regparams(ir_type *method)
 {
-  type_method *res;
+	unsigned cc = get_method_calling_convention(method);
+	assert(IS_FASTCALL(cc));
 
-  res = (type_method *) xmalloc (sizeof (type_method));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_method;
-  res->name = name;   // do I need the name, or is the name in entity sufficient?
-  res->arity = arity;
-  res->param_type = (type **) xmalloc (sizeof (type *) * arity);
-  res->n_res  = n_res;
-  res->res_type = (type **) xmalloc (sizeof (type *) * n_res);
+	return cc & ~cc_bits;
+}
 
-  res->visit = 0;
+void set_method_n_regparams(ir_type *method, unsigned n_regs)
+{
+	unsigned cc = get_method_calling_convention(method);
+	assert(IS_FASTCALL(cc));
 
-  return res;
+	set_method_calling_convention(method, (cc & cc_bits) | (n_regs & ~cc_bits));
 }
 
-/* manipulate fields of type_method */
-const char *
-get_method_name  (type_method *method) {
-  assert(method);
-  return ID_TO_STR(method->name);
+int (is_Method_type)(const ir_type *method)
+{
+	return _is_method_type(method);
 }
 
-ident *
-get_method_ident (type_method *method) {
-  assert(method);
-  return method->name;
+
+ir_type *new_d_type_union(ident *name, type_dbg_info *db)
+{
+	ir_type *res = new_type(type_union, NULL, db);
+	res->name = name;
+
+	res->attr.ua.members = NEW_ARR_F(ir_entity *, 0);
+	hook_new_type(res);
+	return res;
 }
 
-/*
-void   set_method_name  (type_method *method, char *name);
-void   set_method_ident (type_method *method, ident* ident);
-*/
+ir_type *new_type_union(ident *name)
+{
+	return new_d_type_union(name, NULL);
+}
 
-inline int
-get_method_arity (type_method *method) {
-  return method->arity;
+void free_union_entities(ir_type *uni)
+{
+	int i;
+	assert(uni && (uni->type_op == type_union));
+	for (i = get_union_n_members(uni) - 1; i >= 0; --i)
+		free_entity(get_union_member(uni, i));
 }
 
-/*
-inline void
-set_method_arity (type_method *method, int arity) {
-  method->arity = arity;
-  / change array size, somehow copy.  *
+void free_union_attrs (ir_type *uni)
+{
+	assert(uni && (uni->type_op == type_union));
+	DEL_ARR_F(uni->attr.ua.members);
+}
+
+ident *get_union_ident(const ir_type *uni)
+{
+	assert(uni->type_op == type_union);
+	return uni->name;
+}
+
+const char *get_union_name(const ir_type *uni)
+{
+	if (get_union_ident(uni) == NULL)
+		return NULL;
+	return get_id_str(get_union_ident(uni));
 }
-*/
 
-inline type *
-get_method_param_type(type_method *method, int pos) {
-  return method->param_type[pos];
+size_t get_union_n_members(const ir_type *uni)
+{
+	assert(uni->type_op == type_union);
+	return ARR_LEN(uni->attr.ua.members);
 }
 
-inline void
-set_method_param_type(type_method *method, int pos, type* type) {
-  method->param_type[pos] = type;
+static void add_union_member(ir_type *uni, ir_entity *member)
+{
+	assert(uni->type_op == type_union);
+	assert(uni != get_entity_type(member) && "recursive type");
+	ARR_APP1(ir_entity *, uni->attr.ua.members, member);
 }
 
+ir_entity *get_union_member(const ir_type *uni, size_t pos)
+{
+	assert(uni->type_op == type_union);
+	assert(pos < get_union_n_members(uni));
+	return uni->attr.ua.members[pos];
+}
 
-inline int
-get_method_n_res (type_method *method) {
-  return method->n_res;
+size_t get_union_member_index(const ir_type *uni, ir_entity *mem)
+{
+	size_t i, n;
+	assert(uni && (uni->type_op == type_union));
+	for (i = 0, n = get_union_n_members(uni); i < n; ++i) {
+		if (get_union_member(uni, i) == mem)
+			return i;
+	}
+	return (size_t)-1;
 }
 
-/*
-inline void
-set_method_n_res (type_method *method, int n_res) {
-  method->n_res = n_res;
+static void remove_union_member(ir_type *uni, ir_entity *member)
+{
+	size_t i;
+	assert(uni && (uni->type_op == type_union));
+	for (i = 0; i < ARR_LEN(uni->attr.ua.members); ++i) {
+		if (uni->attr.ua.members[i] == member) {
+			for (; i < ARR_LEN(uni->attr.ua.members) - 1; i++)
+				uni->attr.ua.members[i] = uni->attr.ua.members[i+1];
+			ARR_SETLEN(ir_entity*, uni->attr.ua.members, ARR_LEN(uni->attr.ua.members) - 1);
+			break;
+		}
+	}
 }
-*/
 
-inline type *
-get_method_res_type(type_method *method, int pos) {
-  return method->res_type[pos];
+int (is_Union_type)(const ir_type *uni)
+{
+	return _is_union_type(uni);
 }
 
-inline void
-set_method_res_type(type_method *method, int pos, type* type) {
-  method->res_type[pos] = type;
+void set_union_size(ir_type *tp, unsigned size)
+{
+	tp->size = size;
 }
 
 
-/*******************************************************************/
-/** TYPE_UNION                                                    **/
-/*******************************************************************/
 
-/* create a new type_union -- set unioned types by hand. */
-type_union *
-new_type_union (ident *name, int n_types)
+ir_type *new_d_type_array(int n_dimensions, ir_type *element_type,
+                          type_dbg_info *db)
 {
-  type_union *res;
+	ir_type *res;
+	int i;
+	ir_node *unk;
+	ir_graph *irg = get_const_code_irg();
+
+	assert(!is_Method_type(element_type));
+
+	res = new_type(type_array, NULL, db);
+	res->attr.aa.n_dimensions = n_dimensions;
+	res->attr.aa.lower_bound  = XMALLOCNZ(ir_node*, n_dimensions);
+	res->attr.aa.upper_bound  = XMALLOCNZ(ir_node*, n_dimensions);
+	res->attr.aa.order        = XMALLOCNZ(int,      n_dimensions);
+
+	unk = new_r_Unknown(irg, mode_Iu);
+	for (i = 0; i < n_dimensions; i++) {
+		res->attr.aa.lower_bound[i] =
+		res->attr.aa.upper_bound[i] = unk;
+		res->attr.aa.order[i]       = i;
+	}
+
+	res->attr.aa.element_type = element_type;
+	res->attr.aa.element_ent
+		= new_entity(NULL, new_id_from_chars("elem_ent", 8), element_type);
+	res->attr.aa.element_ent->owner = res;
+
+	hook_new_type(res);
+	return res;
+}
 
-  res = (type_union *) xmalloc (sizeof (type_union));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_union;
-  res->name = name;   // do I need a name?
-  res->n_types = n_types;
-  /*
-  res->unioned_type = (int *) xmalloc (sizeof (int) * n_types);
-  */
+ir_type *new_type_array(int n_dimensions, ir_type *element_type)
+{
+	return new_d_type_array(n_dimensions, element_type, NULL);
+}
 
-  res->visit = 0;
+void free_array_automatic_entities(ir_type *array)
+{
+	assert(array && (array->type_op == type_array));
+	free_entity(get_array_element_entity(array));
+}
 
-  return res;
+void free_array_entities(ir_type *array)
+{
+	(void) array;
+	assert(array->type_op == type_array);
 }
 
-/* manipulate fields of type_union */
-/*
-char *
-get_union_name  (type_union *uni) {
-  assert(uni);
-  return ID_TO_STR(uni->name);
+void free_array_attrs(ir_type *array)
+{
+	assert(array->type_op == type_array);
+	free(array->attr.aa.lower_bound);
+	free(array->attr.aa.upper_bound);
+	free(array->attr.aa.order);
 }
-*/
 
-ident *
-get_union_ident (type_union *uni) {
-  assert(uni);
-  return uni->name;
+/* manipulate private fields of array ir_type */
+size_t get_array_n_dimensions(const ir_type *array)
+{
+	assert(array->type_op == type_array);
+	return array->attr.aa.n_dimensions;
 }
 
-/*
-void   set_union_name  (type_union *union, char *name);
-void   set_union_ident (type_union *union, ident* ident);
-*/
-/*
-int    get_union_n_types (type_union *union);
-void   set_union_n_types (type_union *union, int n);
-type  *get_union_unioned_type (type_union *union, int pos);
-void   set_union_unioned_type (type_union *union, int pos, type *type);
-*/
+void set_array_bounds(ir_type *array, size_t dimension, ir_node *lower_bound,
+                      ir_node *upper_bound)
+{
+	assert(array && (array->type_op == type_array));
+	assert(lower_bound && "lower_bound node may not be NULL.");
+	assert(upper_bound && "upper_bound node may not be NULL.");
+	assert(dimension < array->attr.aa.n_dimensions);
+	array->attr.aa.lower_bound[dimension] = lower_bound;
+	array->attr.aa.upper_bound[dimension] = upper_bound;
+}
 
-/*******************************************************************/
-/** TYPE_ARRAY                                                    **/
-/*******************************************************************/
+void set_array_bounds_int(ir_type *array, size_t dimension, int lower_bound,
+                          int upper_bound)
+{
+	ir_graph *irg = get_const_code_irg();
+	set_array_bounds(array, dimension,
+	          new_r_Const_long(irg, mode_Iu, lower_bound),
+	          new_r_Const_long(irg, mode_Iu, upper_bound));
+}
 
-/* create a new type_array */
-inline type_array *
-new_type_array (ident *name, int n_dimensions)
+void set_array_lower_bound(ir_type *array, size_t dimension,
+                           ir_node *lower_bound)
 {
-  type_array *res;
+	assert(array && (array->type_op == type_array));
+	assert(lower_bound && "lower_bound node may not be NULL.");
+	array->attr.aa.lower_bound[dimension] = lower_bound;
+}
 
-  res = (type_array *) xmalloc (sizeof (type_array));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_array;
-  res->name = name;
-  res->n_dimensions = n_dimensions;
-  res->lower_bound = (int *) xmalloc (sizeof (int) * n_dimensions);
-  res->upper_bound = (int *) xmalloc (sizeof (int) * n_dimensions);
+void set_array_lower_bound_int(ir_type *array, size_t dimension, int lower_bound)
+{
+	ir_graph *irg = get_const_code_irg();
+	set_array_lower_bound(array, dimension,
+	     new_r_Const_long(irg, mode_Iu, lower_bound));
+}
 
-  res->visit = 0;
+void set_array_upper_bound(ir_type *array, size_t dimension, ir_node *upper_bound)
+{
+  assert(array && (array->type_op == type_array));
+  assert(upper_bound && "upper_bound node may not be NULL.");
+  array->attr.aa.upper_bound[dimension] = upper_bound;
+}
 
-  return res;
+void set_array_upper_bound_int(ir_type *array, size_t dimension, int upper_bound)
+{
+	ir_graph *irg = get_const_code_irg();
+	set_array_upper_bound(array, dimension,
+	                      new_r_Const_long(irg, mode_Iu, upper_bound));
 }
 
-/* manipulate fields of type_array */
-/*
-char *
-get_array_name  (type_array *array) {
-  assert(array);
-  return ID_TO_STR(array->name);
+int has_array_lower_bound(const ir_type *array, size_t dimension)
+{
+	assert(array && (array->type_op == type_array));
+	return !is_Unknown(array->attr.aa.lower_bound[dimension]);
 }
-*/
 
-ident *
-get_array_ident (type_array *array) {
-  assert(array);
-  return array->name;
+ir_node *get_array_lower_bound(const ir_type *array, size_t dimension)
+{
+	assert(array && (array->type_op == type_array));
+	return array->attr.aa.lower_bound[dimension];
 }
 
-/*
-void   set_array_name  (type_array *array, char *name);
-void   set_array_ident (type_array *array, ident* ident);
-*/
+long get_array_lower_bound_int(const ir_type *array, size_t dimension)
+{
+	ir_node *node;
+	assert(array && (array->type_op == type_array));
+	node = array->attr.aa.lower_bound[dimension];
+	assert(is_Const(node));
+	return get_tarval_long(get_Const_tarval(node));
+}
 
-inline void
-set_array_dimensions (type_array* array, int n) {
-  array->n_dimensions = n;
+int has_array_upper_bound(const ir_type *array, size_t dimension)
+{
+	assert(array && (array->type_op == type_array));
+	return !is_Unknown(array->attr.aa.upper_bound[dimension]);
 }
 
-inline int
-get_array_dimensions (type_array* array) {
-  return array->n_dimensions;
+ir_node *get_array_upper_bound(const ir_type *array, size_t dimension)
+{
+	assert(array && (array->type_op == type_array));
+	return array->attr.aa.upper_bound[dimension];
 }
 
-inline void
-set_array_bounds (type_array* array, int dimension, int lower_bound,
-		  int upper_bound) {
-  array->lower_bound[dimension-1] = lower_bound;
-  array->upper_bound[dimension-1] = upper_bound;
+long get_array_upper_bound_int(const ir_type *array, size_t dimension)
+{
+	ir_node *node;
+	assert(array && (array->type_op == type_array));
+	node = array->attr.aa.upper_bound[dimension];
+	assert(is_Const(node));
+	return get_tarval_long(get_Const_tarval(node));
 }
 
-inline void
-set_array_lower_bound (type_array* array, int dimension, int lower_bound) {
-  array->lower_bound[dimension-1] = lower_bound;
+void set_array_order(ir_type *array, size_t dimension, int order)
+{
+	assert(array && (array->type_op == type_array));
+	array->attr.aa.order[dimension] = order;
 }
 
-inline void
-set_array_upper_bound (type_array* array, int dimension, int upper_bound) {
-  array->upper_bound[dimension-1] = upper_bound;
+int get_array_order(const ir_type *array, size_t dimension)
+{
+	assert(array && (array->type_op == type_array));
+	return array->attr.aa.order[dimension];
 }
 
-inline int
-get_array_lower_bound (type_array* array, int dimension) {
-  return array->lower_bound[dimension-1];
+size_t find_array_dimension(const ir_type *array, int order)
+{
+	size_t dim;
+
+	assert(array->type_op == type_array);
+
+	for (dim = 0; dim < array->attr.aa.n_dimensions; ++dim) {
+		if (array->attr.aa.order[dim] == order)
+			return dim;
+	}
+	return (size_t)-1;
 }
 
-inline int
-get_array_upper_bound (type_array* array, int dimension) {
-  return array->upper_bound[dimension-1];
+void set_array_element_type(ir_type *array, ir_type *tp)
+{
+	assert(array && (array->type_op == type_array));
+	assert(!is_Method_type(tp));
+	array->attr.aa.element_type = tp;
 }
 
-inline void set_array_element_type (type_array *array, type *type) {
-  array->element_type = type;
+ir_type *get_array_element_type(const ir_type *array)
+{
+	assert(array && (array->type_op == type_array));
+	return array->attr.aa.element_type;
 }
 
-inline type *
-get_array_element_type (type_array *array) {
-  return array->element_type;
+void set_array_element_entity(ir_type *array, ir_entity *ent)
+{
+	assert(array && (array->type_op == type_array));
+	assert((get_entity_type(ent)->type_op != type_method));
+	array->attr.aa.element_ent = ent;
+	array->attr.aa.element_type = get_entity_type(ent);
 }
 
+ir_entity *get_array_element_entity(const ir_type *array)
+{
+	assert(array && (array->type_op == type_array));
+	return array->attr.aa.element_ent;
+}
 
-/*******************************************************************/
-/** TYPE_ENUMERATION                                              **/
-/*******************************************************************/
+int (is_Array_type)(const ir_type *array)
+{
+	return _is_array_type(array);
+}
 
-/* create a new type enumeration -- set the enumerators independently */
-type_enumeration *
-new_type_enumeration (ident *name /* , int n_enums */)
+void set_array_size(ir_type *tp, unsigned size)
 {
-  type_enumeration *res;
+	/* FIXME: Here we should make some checks with the element type size */
+	tp->size = size;
+}
 
-  res = (type_enumeration *) xmalloc (sizeof (type_enumeration));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_enumeration;
-  res->name = name;
-  /*
-  res->n_enums = n_enums;
-  res->enum = (int *) xmalloc (sizeof (int) * n_enums);
-  */
 
-  res->visit = 0;
+ir_type *new_d_type_enumeration(ident *name, size_t n_enums, type_dbg_info *db)
+{
+	ir_type *res;
 
-  return res;
+	res = new_type(type_enumeration, NULL, db);
+	res->name = name;
+	res->attr.ea.enumer = NEW_ARR_F(ir_enum_const, n_enums);
+	hook_new_type(res);
+	return res;
 }
 
-/* manipulate fields of type_enumeration */
-/*
-char *
-get_enumeration_name  (type_enumeration *enumeration) {
-  assert(enumeration);
-  return ID_TO_STR(enumeration->name);
+ir_type *new_type_enumeration(ident *name, size_t n_enums)
+{
+	return new_d_type_enumeration(name, n_enums, NULL);
 }
-*/
 
-ident *
-get_enumeration_ident (type_enumeration *enumeration) {
-  assert(enumeration);
-  return enumeration->name;
+void free_enumeration_entities(ir_type *enumeration)
+{
+	(void) enumeration;
+	assert(enumeration->type_op == type_enumeration);
 }
 
-/*
-void   set_enumeration_name  (type_enumeration *enumeration, char *name);
-void   set_enumeration_ident (type_enumeration *enumeration, ident* ident);
-*/
-/*
-void     set_enumeration_n_enums (type_enumeration *enumeration, int n);
-int     *get_enumeration_n_enums (type_enumeration *enumeration);
-void     set_enumeration_enum    (type_enumeration *enumeration, int pos,
-                                 ir_node const);
-ir_node *get_enumeration_enum    (type_enumeration *enumeration, int pos);
-*/
+void free_enumeration_attrs(ir_type *enumeration)
+{
+	assert(enumeration->type_op == type_enumeration);
+	DEL_ARR_F(enumeration->attr.ea.enumer);
+}
+
+ident *get_enumeration_ident(const ir_type *enumeration)
+{
+	assert(enumeration->type_op == type_enumeration);
+	return enumeration->name;
+}
 
+const char *get_enumeration_name(const ir_type *enumeration)
+{
+	if (get_enumeration_ident(enumeration) == NULL)
+		return NULL;
+	return get_id_str(get_enumeration_ident(enumeration));
+}
 
-/*******************************************************************/
-/** TYPE_POINTER                                                  **/
-/*******************************************************************/
+size_t get_enumeration_n_enums(const ir_type *enumeration)
+{
+	assert(enumeration->type_op == type_enumeration);
+	return ARR_LEN(enumeration->attr.ea.enumer);
+}
 
-/* create a new type pointer */
-type_pointer *
-new_type_pointer (ident *name, type *points_to)
+void set_enumeration_const(ir_type *enumeration, size_t pos, ident *nameid,
+                           ir_tarval *con)
 {
-  type_pointer *res;
+	assert(pos < ARR_LEN(enumeration->attr.ea.enumer));
+	enumeration->attr.ea.enumer[pos].nameid = nameid;
+	enumeration->attr.ea.enumer[pos].value  = con;
+	enumeration->attr.ea.enumer[pos].owner  = enumeration;
+}
 
-  res = (type_pointer *) xmalloc (sizeof (type_pointer));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_pointer;
-  res->name = name;
-  res->points_to = points_to;
+ir_enum_const *get_enumeration_const(const ir_type *enumeration, size_t pos)
+{
+	assert(enumeration->type_op == type_enumeration);
+	assert(pos < get_enumeration_n_enums(enumeration));
+	return &enumeration->attr.ea.enumer[pos];
+}
 
-  res->visit = 0;
+ir_type *get_enumeration_owner(const ir_enum_const *enum_cnst)
+{
+	return enum_cnst->owner;
+}
 
-  return res;
+void set_enumeration_value(ir_enum_const *enum_cnst, ir_tarval *con)
+{
+	enum_cnst->value = con;
 }
 
-/* manipulate fields of type_pointer */
-/*
-char *
-get_pointer_name  (type_pointer *pointer) {
-  assert(pointer);
-  return ID_TO_STR(pointer->name);
+ir_tarval *get_enumeration_value(const ir_enum_const *enum_cnst)
+{
+	return enum_cnst->value;
 }
-*/
 
-ident *
-get_pointer_ident (type_pointer *pointer) {
-  assert(pointer);
-  return pointer->name;
+void set_enumeration_nameid(ir_enum_const *enum_cnst, ident *id)
+{
+	enum_cnst->nameid = id;
 }
 
-/*
-void   set_pointer_name  (type_pointer *pointer, char *name);
-void   set_pointer_ident (type_pointer *pointer, ident* ident);
-*/
+ident *get_enumeration_const_nameid(const ir_enum_const *enum_cnst)
+{
+	return enum_cnst->nameid;
+}
+
+const char *get_enumeration_const_name(const ir_enum_const *enum_cnst)
+{
+	return get_id_str(enum_cnst->nameid);
+}
 
-inline void
-set_pointer_points_to_type (type_pointer *pointer, type* type) {
-  pointer->points_to = type;
+int (is_Enumeration_type)(const ir_type *enumeration)
+{
+	return _is_enumeration_type(enumeration);
 }
 
-inline type *
-get_pointer_points_to_type (type_pointer *pointer) {
-  return pointer->points_to;
+void set_enumeration_mode(ir_type *tp, ir_mode *mode)
+{
+	assert(mode_is_int(mode) && "Modes of enumerations must be integers");
+	/* For pointer and enumeration size depends on the mode, but only byte size allowed. */
+	assert((get_mode_size_bits(mode) % 8) == 0 && "unorthodox modes not implemented");
+
+	tp->size = get_mode_size_bytes(mode);
+	tp->mode = mode;
 }
 
 
-/*******************************************************************/
-/** TYPE_PRIMITIVE                                                **/
-/*******************************************************************/
 
-/* create a new type_primitive */
-inline type_primitive *
-new_type_primitive (ident *name, ir_mode *mode)
+ir_type *new_d_type_pointer(ir_type *points_to, type_dbg_info *db)
 {
-  type_primitive *res;
+	ir_type *res;
+	ir_mode *mode;
+
+	if (is_Method_type(points_to) || is_code_type(points_to)) {
+		mode = mode_P_code;
+	} else {
+		mode = mode_P_data;
+	}
+
+	res = new_type(type_pointer, mode, db);
+	res->attr.pa.points_to = points_to;
+	assert((get_mode_size_bits(res->mode) % 8 == 0) && "unorthodox modes not implemented");
+	res->size = get_mode_size_bytes(res->mode);
+	res->flags |= tf_layout_fixed;
+	hook_new_type(res);
+	return res;
+}
 
-  res = (type_primitive *) xmalloc (sizeof (type_primitive));
-  add_irp_type((type *) res);   /* Remember the new type global. */
-  res->kind = k_type_primitive;
-  res->name = name;
-  res->mode = mode;
+ir_type *new_type_pointer(ir_type *points_to)
+{
+	return new_d_type_pointer(points_to, NULL);
+}
 
-  res->visit = 0;
+void free_pointer_entities(ir_type *pointer)
+{
+	(void) pointer;
+	assert(pointer && (pointer->type_op == type_pointer));
+}
 
-  return res;
+void free_pointer_attrs(ir_type *pointer)
+{
+	(void) pointer;
+	assert(pointer && (pointer->type_op == type_pointer));
 }
 
-/* manipulate fields of type_primitive */
-/*
+void set_pointer_points_to_type(ir_type *pointer, ir_type *tp)
+{
+	assert(pointer && (pointer->type_op == type_pointer));
+	pointer->attr.pa.points_to = tp;
+}
 
-char  *
-get_primitive_name  (type_primitive *primitive) {
-  assert(primitive);
-  return ID_TO_STR(primitive->name);
+ir_type *get_pointer_points_to_type(const ir_type *pointer)
+{
+	assert(pointer && (pointer->type_op == type_pointer));
+	return pointer->attr.pa.points_to;
 }
-*/
 
-ident *
-get_primitive_ident (type_primitive *primitive) {
-  assert(primitive);
-  return primitive->name;
+int (is_Pointer_type)(const ir_type *pointer)
+{
+	return _is_pointer_type(pointer);
 }
-/*
-void   set_primitive_name  (type_primitive *primitive, char *name);
-void   set_primitive_ident (type_primitive *primitive, ident* ident);
-*/
 
-inline ir_mode *
-get_primitive_mode (type_primitive *primitive) {
-  return primitive->mode;
+void set_pointer_mode(ir_type *tp, ir_mode *mode)
+{
+	assert(mode_is_reference(mode) && "Modes of pointers must be references");
+	/* For pointer and enumeration size depends on the mode, but only byte size allowed. */
+	assert((get_mode_size_bits(mode) & 7) == 0 && "unorthodox modes not implemented");
+
+	tp->size = get_mode_size_bytes(mode);
+	tp->mode = mode;
+}
+
+ir_type *find_pointer_type_to_type(ir_type *tp)
+{
+	size_t i, n = get_irp_n_types();
+	for (i = 0; i < n; ++i) {
+		ir_type *found = get_irp_type(i);
+		if (is_Pointer_type(found) && get_pointer_points_to_type(found) == tp)
+			return (found);
+	}
+	return firm_unknown_type;
+}
+
+
+
+ir_type *new_d_type_primitive(ir_mode *mode, type_dbg_info *db)
+{
+	ir_type *res = new_type(type_primitive, mode, db);
+	res->size  = get_mode_size_bytes(mode);
+	res->flags |= tf_layout_fixed;
+	res->attr.ba.base_type = NULL;
+	hook_new_type(res);
+	return res;
+}
+
+ir_type *new_type_primitive(ir_mode *mode)
+{
+	return new_d_type_primitive(mode, NULL);
+}
+
+int (is_Primitive_type)(const ir_type *primitive)
+{
+	return _is_primitive_type(primitive);
+}
+
+void set_primitive_mode(ir_type *tp, ir_mode *mode)
+{
+	/* Modes of primitives must be data */
+	assert(mode_is_data(mode));
+
+	/* For primitive size depends on the mode. */
+	tp->size = get_mode_size_bytes(mode);
+	tp->mode = mode;
+}
+
+ir_type *get_primitive_base_type(const ir_type *tp)
+{
+	assert(is_Primitive_type(tp));
+	return tp->attr.ba.base_type;
+}
+
+void set_primitive_base_type(ir_type *tp, ir_type *base_tp)
+{
+	assert(is_Primitive_type(tp));
+	tp->attr.ba.base_type = base_tp;
+}
+
+
+
+int (is_atomic_type)(const ir_type *tp)
+{
+	return _is_atomic_type(tp);
+}
+
+size_t get_compound_n_members(const ir_type *tp)
+{
+	const tp_op *op  = get_type_tpop(tp);
+	return op->ops.get_n_members(tp);
+}
+
+ir_entity *get_compound_member(const ir_type *tp, size_t pos)
+{
+	const tp_op *op = get_type_tpop(tp);
+	return op->ops.get_member(tp, pos);
+}
+
+size_t get_compound_member_index(const ir_type *tp, ir_entity *member)
+{
+	const tp_op *op = get_type_tpop(tp);
+	return op->ops.get_member_index(tp, member);
+}
+
+int is_compound_type(const ir_type *tp)
+{
+	assert(tp->kind == k_type);
+	return tp->type_op->flags & TP_OP_FLAG_COMPOUND;
+}
+
+ident *get_compound_ident(const ir_type *tp)
+{
+	assert(is_compound_type(tp));
+	return tp->name;
+}
+
+const char *get_compound_name(const ir_type *tp)
+{
+	if (get_compound_ident(tp) == NULL)
+		return NULL;
+	return get_id_str(get_compound_ident(tp));
+}
+
+void remove_compound_member(ir_type *compound, ir_entity *entity)
+{
+	switch (get_type_tpop_code(compound)) {
+	case tpo_class:  remove_class_member(compound, entity);  break;
+	case tpo_struct: remove_struct_member(compound, entity); break;
+	case tpo_union:  remove_union_member(compound, entity);  break;
+	default:
+		panic("argument for remove_compound_member not a compound type");
+	}
+}
+
+void add_compound_member(ir_type *compound, ir_entity *entity)
+{
+	switch (get_type_tpop_code(compound)) {
+	case tpo_class:  add_class_member(compound, entity);  break;
+	case tpo_struct: add_struct_member(compound, entity); break;
+	case tpo_union:  add_union_member(compound, entity);  break;
+	default:
+		panic("argument for add_compound_member not a compound type");
+	}
+}
+
+
+
+int is_code_type(const ir_type *tp)
+{
+	assert(tp && tp->kind == k_type);
+	return tp->type_op == tpop_code;
+}
+
+int is_frame_type(const ir_type *tp)
+{
+	return tp->flags & tf_frame_type;
+}
+
+int is_value_param_type(const ir_type *tp)
+{
+	return tp->flags & tf_value_param_type;
+}
+
+int is_lowered_type(const ir_type *tp)
+{
+	return tp->flags & tf_lowered_type;
 }
 
-inline void
-set_primitive_mode (type_primitive *primitive, ir_mode *mode) {
-  primitive->mode = mode;
+ir_type *new_type_value(void)
+{
+	ir_type *res = new_type_struct(new_id_from_str("<value_type>"));
+
+	res->flags |= tf_value_param_type;
+
+	/* Remove type from type list.  Must be treated differently than other types. */
+	remove_irp_type(res);
+
+	return res;
+}
+
+ir_type *new_type_frame(void)
+{
+	ir_type *res = new_type_class(new_id_from_str("<frame_type>"));
+
+	res->flags |= tf_frame_type;
+
+	/* Remove type from type list.  Must be treated differently than other types. */
+	remove_irp_type(res);
+
+	/* It is not possible to derive from the frame type. Set the final flag. */
+	set_class_final(res, 1);
+
+	return res;
 }
 
+ir_type *clone_frame_type(ir_type *type)
+{
+	ir_type *res;
+	int     i, n;
+
+	assert(is_frame_type(type));
+	/* the entity link resource should be allocated if this function is called */
+	assert(irp_resources_reserved(irp) & IR_RESOURCE_ENTITY_LINK);
+
+	res = new_type_frame();
+	for (i = 0, n = get_class_n_members(type); i < n; ++i) {
+		ir_entity *ent  = get_class_member(type, i);
+		ir_entity *nent = copy_entity_own(ent, res);
+		set_entity_link(ent, nent);
+		set_entity_link(nent, ent);
+	}
+	return res;
+}
 
+void set_lowered_type(ir_type *tp, ir_type *lowered_type)
+{
+	assert(is_type(tp) && is_type(lowered_type));
+	lowered_type->flags |= tf_lowered_type;
+	tp->assoc_type = lowered_type;
+	lowered_type->assoc_type = tp;
+}
 
+ir_type *get_associated_type(const ir_type *tp)
+{
+	return tp->assoc_type;
+}
 
-/*******************************************************************/
-/**  To manage all different types the same                       **/
-/*******************************************************************/
+void set_default_size(ir_type *tp, unsigned size)
+{
+	tp->size = size;
+}
 
+void default_layout_compound_type(ir_type *type)
+{
+	size_t i;
+	size_t n = get_compound_n_members(type);
+	int size = 0;
+	unsigned align_all = 1;
+
+	for (i = 0; i < n; ++i) {
+		ir_entity *entity      = get_compound_member(type, i);
+		ir_type   *entity_type = get_entity_type(entity);
+		unsigned   align;
+		unsigned   misalign;
+
+		if (is_Method_type(entity_type))
+			continue;
+
+		assert(get_type_state(entity_type) == layout_fixed);
+		align     = get_type_alignment_bytes(entity_type);
+		align_all = align > align_all ? align : align_all;
+		misalign  = (align ? size % align : 0);
+		size     += (misalign ? align - misalign : 0);
+
+		set_entity_offset(entity, size);
+		if (!is_Union_type(type)) {
+			size += get_type_size_bytes(entity_type);
+		}
+	}
+	if (align_all > 0 && size % align_all) {
+		size += align_all - (size % align_all);
+	}
+	if (align_all > get_type_alignment_bytes(type)) {
+		set_type_alignment_bytes(type, align_all);
+	}
+	set_type_size_bytes(type, size);
+	set_type_state(type, layout_fixed);
+}
 
-int
-is_type(void *thing) {
-  firm_kind kind;
+ir_entity *frame_alloc_area(ir_type *frame_type, int size, unsigned alignment,
+                            int at_start)
+{
+	ir_entity *area;
+	ir_type *tp;
+	ident *name;
+	char buf[32];
+	unsigned frame_align;
+	int i, offset, frame_size;
+	static unsigned area_cnt = 0;
+	static ir_type *a_byte = NULL;
+
+	assert(is_frame_type(frame_type));
+	assert(get_type_state(frame_type) == layout_fixed);
+	assert(get_type_alignment_bytes(frame_type) > 0);
+	set_type_state(frame_type, layout_undefined);
+
+	if (! a_byte)
+		a_byte = new_type_primitive(mode_Bu);
+
+	snprintf(buf, sizeof(buf), "area%u", area_cnt++);
+	name = new_id_from_str(buf);
+
+	/* align the size */
+	frame_align = get_type_alignment_bytes(frame_type);
+	size = (size + frame_align - 1) & ~(frame_align - 1);
+
+	tp = new_type_array(1, a_byte);
+	set_array_bounds_int(tp, 0, 0, size);
+	set_type_alignment_bytes(tp, alignment);
+
+	frame_size = get_type_size_bytes(frame_type);
+	if (at_start) {
+		/* fix all offsets so far */
+		for (i = get_class_n_members(frame_type) - 1; i >= 0; --i) {
+			ir_entity *ent = get_class_member(frame_type, i);
+
+			set_entity_offset(ent, get_entity_offset(ent) + size);
+		}
+		/* calculate offset and new type size */
+		offset = 0;
+		frame_size += size;
+
+		/* increase size to match alignment... */
+		if (alignment > frame_align) {
+			frame_align = alignment;
+			set_type_alignment_bytes(frame_type, frame_align);
+			frame_size  = (frame_size + frame_align - 1) & ~(frame_align - 1);
+		}
+	} else {
+		/* calculate offset and new type size */
+		offset = (frame_size + alignment - 1) & ~(alignment - 1);
+		frame_size = offset + size;
+	}
+
+	area = new_entity(frame_type, name, tp);
+	set_entity_offset(area, offset);
+	set_type_size_bytes(frame_type, frame_size);
+
+	/* mark this entity as compiler generated */
+	set_entity_compiler_generated(area, 1);
+
+	set_type_state(frame_type, layout_fixed);
+	return area;
+}
 
-  kind = get_kind(thing);
-  if (   (kind == k_type_class)
-      || (kind == k_type_strct)
-      || (kind == k_type_method)
-      || (kind == k_type_union)
-      || (kind == k_type_array)
-      || (kind == k_type_enumeration)
-      || (kind == k_type_pointer)
-      || (kind == k_type_primitive))
-    return 1;
-  else
-    return 0;
+void ir_print_type(char *buffer, size_t buffer_size, const ir_type *type)
+{
+	ident *id;
+	int p;
+	type_dbg_info *tdbgi = get_type_dbg_info(type);
+	if (tdbgi != NULL) {
+		ir_retrieve_type_dbg_info(buffer, buffer_size, tdbgi);
+		return;
+	}
+
+	/* we have to construct some name... */
+	switch (get_type_tpop_code(type)) {
+	case tpo_uninitialized:
+		break;
+	case tpo_code:
+		snprintf(buffer, buffer_size, "code");
+		return;
+
+	case tpo_class:
+		id = get_class_ident(type);
+		snprintf(buffer, buffer_size, "class '%s'", get_id_str(id));
+		return;
+
+	case tpo_struct:
+		id = get_struct_ident(type);
+		snprintf(buffer, buffer_size, "struct '%s'", get_id_str(id));
+		return;
+
+	case tpo_union:
+		id = get_union_ident(type);
+		snprintf(buffer, buffer_size, "union '%s'", get_id_str(id));
+		return;
+
+	case tpo_enumeration:
+		id = get_enumeration_ident(type);
+		snprintf(buffer, buffer_size, "enumeration '%s'", get_id_str(id));
+		return;
+
+	case tpo_unknown:
+		snprintf(buffer, buffer_size, "unknown type");
+		return;
+
+	case tpo_pointer:
+		p = snprintf(buffer, buffer_size, "pointer to ");
+		buffer      += p;
+		buffer_size -= p;
+		ir_print_type(buffer, buffer_size, get_pointer_points_to_type(type));
+		return;
+
+	case tpo_array:
+		p = snprintf(buffer, buffer_size, "array of ");
+		buffer      += p;
+		buffer_size -= p;
+		ir_print_type(buffer, buffer_size, get_array_element_type(type));
+		return;
+
+	case tpo_primitive:
+		id = get_mode_ident(get_type_mode(type));
+		snprintf(buffer, buffer_size, "%s", get_id_str(id));
+		return;
+
+	case tpo_none:
+		snprintf(buffer, buffer_size, "none");
+		return;
+	case tpo_method:
+		/* TODO: we should print argument and return types here... */
+		snprintf(buffer, buffer_size, "method type");
+		return;
+	}
+	snprintf(buffer, buffer_size, "invalid type");
 }