/*
- * Project: libFIRM
- * File name: ir/tr/entity.c
- * Purpose: Representation of all program known entities.
- * Author: Martin Trapp, Christian Schaefer
- * Modified by: Goetz Lindenmaier, Michael Beck
- * Created:
- * CVS-ID: $Id$
- * Copyright: (c) 1998-2007 Universität Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ * Copyright (C) 1995-2007 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
+ * @brief Representation of all program known entities.
+ * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
+ * @version $Id$
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifdef HAVE_STDDEF_H
-# include <stddef.h>
-#endif
-#ifdef HAVE_MALLOC_H
-# include <malloc.h>
-#endif
-#ifdef HAVE_ALLOCA_H
-# include <alloca.h>
-#endif
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
#include "firm_common_t.h"
#include "xmalloc.h"
#include "entity_t.h"
-#include "mangle.h"
-#include "typegmod.h"
#include "array.h"
#include "irtools.h"
#include "irhooks.h"
res->address_taken = ir_address_taken_unknown;
res->final = 0;
res->compiler_gen = 0;
+ res->backend_marked = 0;
res->offset = -1;
res->offset_bit_remainder = 0;
res->link = NULL;
_set_entity_compiler_generated(ent, flag);
} /* set_entity_compiler_generated */
+/* Checks if an entity is marked by the backend */
+int (is_entity_backend_marked)(const ir_entity *ent) {
+ return _is_entity_backend_marked(ent);
+} /* is_entity_backend_marked */
+
+/* Sets/resets the compiler generated flag */
+void (set_entity_backend_marked)(ir_entity *ent, int flag) {
+ _set_entity_backend_marked(ent, flag);
+} /* set_entity_backend_marked */
+
/* Checks if the address of an entity was taken. */
ir_address_taken_state (get_entity_address_taken)(const ir_entity *ent) {
return _get_entity_address_taken(ent);
case iro_Unknown:
nn = new_d_Unknown(m); break;
default:
- DDMN(n);
assert(0 && "opcode invalid or not implemented");
nn = NULL;
break;
compound_graph_path *path;
int path_len, i;
int offset = 0;
+ ir_type *curr_tp;
assert(get_type_state(get_entity_type(ent)) == layout_fixed);
path = get_compound_ent_value_path(ent, pos);
path_len = get_compound_graph_path_length(path);
+ curr_tp = path->tp;
for (i = 0; i < path_len; ++i) {
ir_entity *node = get_compound_graph_path_node(path, i);
ir_type *node_tp = get_entity_type(node);
- ir_type *owner_tp = get_entity_owner(node);
- if (is_Array_type(owner_tp)) {
+ if (is_Array_type(curr_tp)) {
int size = get_type_size_bits(node_tp);
int align = get_type_alignment_bits(node_tp);
+ int idx;
+
+ assert(size > 0);
if(size % align > 0) {
size += align - (size % align);
}
assert(size % 8 == 0);
size /= 8;
- offset += size * get_compound_graph_path_array_index(path, i);
+ idx = get_compound_graph_path_array_index(path, i);
+ assert(idx >= 0);
+ offset += size * idx;
} else {
offset += get_entity_offset(node);
}
+ curr_tp = node_tp;
}
return offset;
return get_entity_offset_bits_remainder(last_node);
} /* get_compound_ent_value_offset_bit_remainder */
-typedef struct {
- int n_elems; /**< number of elements the array can hold */
- int current_elem; /**< current array index */
- ir_entity *ent;
-} array_info;
-
-/* Compute the array indices in compound graph paths of initialized entities.
- *
- * All arrays must have fixed lower and upper bounds. One array can
- * have an open bound. If there are several open bounds, we do
- * nothing. There must be initializer elements for all array
- * elements. Uses the link field in the array element entities. The
- * array bounds must be representable as ints.
- *
- * WARNING: it is impossible to get this 100% right with the current
- * design... (in array of structs you cant know when a struct is
- * really finished and the next array element starts)
- *
- * (If the bounds are not representable as ints we have to represent
- * the indices as firm nodes. But still we must be able to
- * evaluate the index against the upper bound.)
- */
-int compute_compound_ent_array_indices(ir_entity *ent) {
- ir_type *tp = get_entity_type(ent);
- int i, n_vals;
- int max_len = 0;
- array_info *array_infos;
-
- assert(is_compound_type(tp));
-
- if (!is_compound_type(tp) ||
- (ent->variability == variability_uninitialized))
- return 1;
-
- n_vals = get_compound_ent_n_values(ent);
- for(i = 0; i < n_vals; ++i) {
- compound_graph_path *path = get_compound_ent_value_path(ent, i);
- int len = get_compound_graph_path_length(path);
- if(len > max_len)
- max_len = len;
- }
-
- array_infos = alloca(max_len * sizeof(array_infos[0]));
- memset(array_infos, 0, max_len * sizeof(array_infos[0]));
-
- for(i = 0; i < n_vals; ++i) {
- compound_graph_path *path = get_compound_ent_value_path(ent, i);
- int path_len = get_compound_graph_path_length(path);
- int j;
- int needadd = 0;
- ir_entity *prev_node = NULL;
-
- for(j = path_len-1; j >= 0; --j) {
- int dim, dims;
- int n_elems;
- ir_entity *node = get_compound_graph_path_node(path, j);
- const ir_type *node_type = get_entity_type(node);
- array_info *info = &array_infos[j];
-
- if(is_atomic_entity(node)) {
- needadd = 1;
- set_compound_graph_path_array_index(path, j, -1);
- prev_node = node;
- continue;
- } else if(is_compound_type(node_type) && !is_Array_type(node_type)) {
- int n_members = get_compound_n_members(node_type);
- ir_entity *last = get_compound_member(node_type, n_members - 1);
- if(needadd && last == prev_node) {
- needadd = 1;
- } else {
- needadd = 0;
- }
- set_compound_graph_path_array_index(path, j, -1);
- prev_node = node;
- continue;
- }
-
- if(info->ent != node) {
- n_elems = 1;
- dims = get_array_n_dimensions(node_type);
- for(dim = 0; dim < dims; ++dim) {
- long lower_bound = 0;
- long upper_bound = -1;
-
- if(has_array_lower_bound(node_type, 0)) {
- lower_bound = get_array_lower_bound_int(node_type, 0);
- }
- if(has_array_upper_bound(node_type, 0)) {
- upper_bound = get_array_upper_bound_int(node_type, 0);
- assert(upper_bound >= lower_bound);
- n_elems *= (upper_bound - lower_bound);
- } else {
- assert(dim == dims-1);
- n_elems = -1;
- }
- }
-
- info->ent = node;
- info->n_elems = n_elems;
- info->current_elem = 0;
- }
-
- set_compound_graph_path_array_index(path, j, info->current_elem);
-
- if(needadd) {
- info->current_elem++;
- if(info->current_elem >= info->n_elems) {
- needadd = 1;
- info->current_elem = 0;
- } else {
- needadd = 0;
- }
- }
-
- prev_node = node;
- }
- }
-
- return 1;
-} /* compute_compound_ent_array_indices */
-
int
(get_entity_offset)(const ir_entity *ent) {
return _get_entity_offset(ent);
/**
* @todo not implemented!!! */
int equal_entity(ir_entity *ent1, ir_entity *ent2) {
+ (void) ent1;
+ (void) ent2;
fprintf(stderr, " calling unimplemented equal entity!!! \n");
return 1;
} /* equal_entity */
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