-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-*/
+/*
+ * Project: libFIRM
+ * File name: ir/tr/entity.c
+ * Purpose: Representation of all program known entities.
+ * Author: Martin Trapp, Christian Schaefer
+ * Modified by: Goetz Lindenmaier
+ * Created:
+ * CVS-ID: $Id$
+ * Copyright: (c) 1998-2003 Universität Karlsruhe
+ * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+#ifdef HAVE_STDLIB_H
# include <stdlib.h>
+#endif
+# include <stddef.h>
+
+#include "firm_common_t.h"
+
+# include "xmalloc.h"
# include "entity_t.h"
-# include "entity.h"
# include "mangle.h"
+# include "typegmod.h"
+# include "array.h"
+
+/* All this is needed to build the constant node for methods: */
+# include "irprog_t.h"
+# include "ircons.h"
+# include "tv_t.h"
+
+#if DEBUG_libfirm
+# include "irdump.h" /* for output if errors occur. */
+#endif
+
+# include "callgraph.h" /* for dumping debug output */
/*******************************************************************/
/** general **/
/*******************************************************************/
+entity *unknown_entity = NULL; entity *get_unknown_entity(void) { return unknown_entity; }
+#define UNKNOWN_ENTITY_NAME "unknown_entity"
+
+static INLINE entity *
+new_rd_entity (dbg_info *db, type *owner, ident *name, type *type);
+
void
init_entity (void)
{
+ symconst_symbol sym;
+
+ assert(firm_unknown_type && "Call init_type before init_entity!");
+ assert(!unknown_entity && "Call init_entity only once!");
+ unknown_entity = new_rd_entity(NULL, firm_unknown_type, new_id_from_str(UNKNOWN_ENTITY_NAME), firm_unknown_type);
+ set_entity_visibility(unknown_entity, visibility_external_allocated);
+ set_entity_ld_ident(unknown_entity, get_entity_ident(unknown_entity));
+
+ sym.entity_p = unknown_entity;
+ current_ir_graph = get_const_code_irg();
+ unknown_entity->value = new_SymConst(sym, symconst_addr_ent);
}
-/*******************************************************************/
-/** ENTITY **/
-/*******************************************************************/
-entity *
-new_entity (type *owner, ident *name, type *type)
+/*-----------------------------------------------------------------*/
+/* ENTITY */
+/*-----------------------------------------------------------------*/
+
+static INLINE void insert_entity_in_owner (entity *ent) {
+ type *owner = ent->owner;
+ switch (get_type_tpop_code(owner)) {
+ case tpo_class: {
+ add_class_member (owner, ent);
+ } break;
+ case tpo_struct: {
+ add_struct_member (owner, ent);
+ } break;
+ case tpo_union: {
+ add_union_member (owner, ent);
+ } break;
+ case tpo_array: {
+ set_array_element_entity(owner, ent);
+ } break;
+ default: assert(0);
+ }
+}
+
+/**
+ * creates a new entity
+ */
+static INLINE entity *
+new_rd_entity (dbg_info *db, type *owner, ident *name, type *type)
{
entity *res;
+ ir_graph *rem;
- res = (entity *) malloc (sizeof (entity));
+ assert(!id_contains_char(name, ' ') && "entity name should not contain spaces");
+
+ res = xmalloc(sizeof(*res));
+ memset(res, 0, sizeof(*res));
res->kind = k_entity;
- assert_legal_owner_of_ent(owner);
res->owner = owner;
res->name = name;
res->type = type;
- res->ld_name = NULL;
- res->visit = 0;
+ if (get_type_tpop(type) == type_method)
+ res->allocation = allocation_static;
+ else
+ res->allocation = allocation_automatic;
- switch (get_kind(owner)) {
- case k_type_class: {
- add_class_member ((type_class *) owner, res);
- } break;
- case k_type_strct: {
- add_strct_member ((type_strct *) owner, res);
- } break;
- case k_type_union: {
- /* not implemented */
- } break;
- case k_type_method: {
- /* not implemented */
- } break;
- default: ;
+ res->visibility = visibility_local;
+ res->offset = -1;
+ if (is_Method_type(type)) {
+ symconst_symbol sym;
+ sym.entity_p = res;
+ res->variability = variability_constant;
+ rem = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+ res->value = new_SymConst(sym, symconst_addr_ent);
+ current_ir_graph = rem;
+ } else {
+ res->variability = variability_uninitialized;
+ res->value = NULL;
+ res->values = NULL;
+ res->val_paths = NULL;
+ }
+ res->peculiarity = peculiarity_existent;
+ res->volatility = volatility_non_volatile;
+ res->stickyness = stickyness_unsticky;
+ res->ld_name = NULL;
+ if (is_Class_type(owner)) {
+ res->overwrites = NEW_ARR_F(entity *, 0);
+ res->overwrittenby = NEW_ARR_F(entity *, 0);
+ } else {
+ res->overwrites = NULL;
+ res->overwrittenby = NULL;
}
+ res->irg = NULL;
+
+ //res->accesses = NULL;
+
+#ifdef DEBUG_libfirm
+ res->nr = get_irp_new_node_nr();
+#endif /* DEBUG_libfirm */
+
+ res->visit = 0;
+ set_entity_dbg_info(res, db);
return res;
}
-#if 0
-inline char *
-get_entity_name (entity *ent) {
- assert (ent);
- return id_to_str(get_entity_ident(ent));
- /* GL:
- entity.c:52: warning: return discards `const' from pointer target type
- -- ned so guud
- */
+entity *
+new_d_entity (type *owner, ident *name, type *type, dbg_info *db) {
+ entity *res;
+
+ assert_legal_owner_of_ent(owner);
+ res = new_rd_entity(db, owner, name, type);
+ /* Remember entity in it's owner. */
+ insert_entity_in_owner (res);
+
+ return res;
}
+
+entity *
+new_entity (type *owner, ident *name, type *type) {
+ return new_d_entity(owner, name, type, NULL);
+}
+
+
+
+
+static void free_entity_attrs(entity *ent) {
+ int i;
+ if (get_type_tpop(get_entity_owner(ent)) == type_class) {
+ DEL_ARR_F(ent->overwrites); ent->overwrites = NULL;
+ DEL_ARR_F(ent->overwrittenby); ent->overwrittenby = NULL;
+ } else {
+ assert(ent->overwrites == NULL);
+ assert(ent->overwrittenby == NULL);
+ }
+ /* if (ent->values) DEL_ARR_F(ent->values); *//* @@@ warum nich? */
+ if (ent->val_paths) {
+ if (is_compound_entity(ent))
+ for (i = 0; i < get_compound_ent_n_values(ent); i++)
+ if (ent->val_paths[i]) ;
+ /* free_compound_graph_path(ent->val_paths[i]) ; * @@@ warum nich? */
+ /* Geht nich: wird mehrfach verwendet!!! ==> mehrfach frei gegeben. */
+ /* DEL_ARR_F(ent->val_paths); */
+ }
+ ent->val_paths = NULL;
+ ent->values = NULL;
+}
+
+entity *
+copy_entity_own (entity *old, type *new_owner) {
+ entity *newe;
+ assert(old && old->kind == k_entity);
+ assert_legal_owner_of_ent(new_owner);
+
+ if (old->owner == new_owner) return old;
+ newe = xmalloc(sizeof(*newe));
+ memcpy (newe, old, sizeof(*newe));
+ newe->owner = new_owner;
+ if (is_Class_type(new_owner)) {
+ newe->overwrites = NEW_ARR_F(entity *, 0);
+ newe->overwrittenby = NEW_ARR_F(entity *, 0);
+ }
+#ifdef DEBUG_libfirm
+ newe->nr = get_irp_new_node_nr();
#endif
+ insert_entity_in_owner (newe);
+
+ return newe;
+}
+
+entity *
+copy_entity_name (entity *old, ident *new_name) {
+ entity *newe;
+ assert(old && old->kind == k_entity);
+
+ if (old->name == new_name) return old;
+ newe = xmalloc(sizeof(*newe));
+ memcpy(newe, old, sizeof(*newe));
+ newe->name = new_name;
+ newe->ld_name = NULL;
+ if (is_Class_type(newe->owner)) {
+ newe->overwrites = DUP_ARR_F(entity *, old->overwrites);
+ newe->overwrittenby = DUP_ARR_F(entity *, old->overwrittenby);
+ }
+#ifdef DEBUG_libfirm
+ newe->nr = get_irp_new_node_nr();
+#endif
+
+ insert_entity_in_owner (newe);
+
+ return newe;
+}
+
+
+void
+free_entity (entity *ent) {
+ assert(ent && ent->kind == k_entity);
+ free_entity_attrs(ent);
+ ent->kind = k_BAD;
+ free(ent);
+}
+
+/* Outputs a unique number for this node */
+long
+get_entity_nr(entity *ent) {
+ assert(ent && ent->kind == k_entity);
+#ifdef DEBUG_libfirm
+ return ent->nr;
+#else
+ return 0;
+#endif
+}
+
+const char *
+(get_entity_name)(const entity *ent) {
+ return _get_entity_name(ent);
+}
+
ident *
-get_entity_ident (entity *ent) {
- assert(ent);
- return ent->name;
+(get_entity_ident)(const entity *ent) {
+ return get_entity_ident(ent);
}
/*
-void set_entity_ld_name (entity *, char *ld_name);
+void set_entitye_ld_name (entity *, char *ld_name);
void set_entity_ld_ident (entity *, ident *ld_ident);
*/
-inline type *
-get_entity_owner (entity *ent) {
- return ent->owner;
+type *
+(get_entity_owner)(entity *ent) {
+ return _get_entity_owner(ent);
}
-inline void
+void
set_entity_owner (entity *ent, type *owner) {
+ assert(ent && ent->kind == k_entity);
assert_legal_owner_of_ent(owner);
ent->owner = owner;
}
-inline void /* should this go into type.c? */
+void /* should this go into type.c? */
assert_legal_owner_of_ent(type *owner) {
- assert (owner->clss.kind == k_type_class ||
- owner->uni.kind == k_type_union ||
- owner->array.kind == k_type_array ||
- owner->method.kind == k_type_method );
+ assert(get_type_tpop_code(owner) == tpo_class ||
+ get_type_tpop_code(owner) == tpo_union ||
+ get_type_tpop_code(owner) == tpo_struct ||
+ get_type_tpop_code(owner) == tpo_array); /* Yes, array has an entity
+ -- to select fields! */
}
-inline ident *
-get_entity_ld_name (entity *ent)
+ident *
+(get_entity_ld_ident)(entity *ent) {
+ return _get_entity_ld_ident(ent);
+}
+
+void
+(set_entity_ld_ident)(entity *ent, ident *ld_ident) {
+ _set_entity_ld_ident(ent, ld_ident);
+}
+
+const char *
+(get_entity_ld_name)(entity *ent) {
+ return _get_entity_ld_name(ent);
+}
+
+type *
+(get_entity_type)(entity *ent) {
+ return _get_entity_type(ent);
+}
+
+void
+(set_entity_type)(entity *ent, type *type) {
+ _set_entity_type(ent, type);
+}
+
+ent_allocation
+(get_entity_allocation)(const entity *ent) {
+ return _get_entity_allocation(ent);
+}
+
+void
+(set_entity_allocation)(entity *ent, ent_allocation al) {
+ _set_entity_allocation(ent, al);
+}
+
+/* return the name of the visibility */
+const char *get_allocation_name(ent_allocation all)
{
- if (ent->ld_name != NULL) return ent->ld_name;
- return mangle_entity (ent);
+#define X(a) case a: return #a
+ switch (all) {
+ X(allocation_automatic);
+ X(allocation_parameter);
+ X(allocation_dynamic);
+ X(allocation_static);
+ default: return "BAD VALUE";
+ }
+#undef X
}
-/*
-char *get_entity_ld_name (entity *);
-void set_entity_ld_name (entity *, char *ld_name);
-void set_entity_ld_ident (entity *, ident *ld_ident);
-*/
-inline type *
-get_entity_type (entity *ent) {
- return ent->type;
+visibility
+(get_entity_visibility)(const entity *ent) {
+ return _get_entity_visibility(ent);
+}
+
+void
+set_entity_visibility (entity *ent, visibility vis) {
+ assert(ent && ent->kind == k_entity);
+ if (vis != visibility_local)
+ assert((ent->allocation == allocation_static) ||
+ (ent->allocation == allocation_automatic));
+ /* @@@ Test that the owner type is not local, but how??
+ && get_class_visibility(get_entity_owner(ent)) != local));*/
+ ent->visibility = vis;
+}
+
+/* return the name of the visibility */
+const char *get_visibility_name(visibility vis)
+{
+#define X(a) case a: return #a
+ switch (vis) {
+ X(visibility_local);
+ X(visibility_external_visible);
+ X(visibility_external_allocated);
+ default: return "BAD VALUE";
+ }
+#undef X
+}
+
+ent_variability
+(get_entity_variability)(const entity *ent) {
+ return _get_entity_variability(ent);
+}
+
+void
+set_entity_variability (entity *ent, ent_variability var)
+{
+ assert(ent && ent->kind == k_entity);
+ if (var == variability_part_constant)
+ assert(is_Class_type(ent->type) || is_Struct_type(ent->type));
+
+ if ((is_compound_type(ent->type)) &&
+ (ent->variability == variability_uninitialized) && (var != variability_uninitialized)) {
+ /* Allocate datastructures for constant values */
+ ent->values = NEW_ARR_F(ir_node *, 0);
+ ent->val_paths = NEW_ARR_F(compound_graph_path *, 0);
+ }
+ if ((is_atomic_type(ent->type)) &&
+ (ent->variability == variability_uninitialized) && (var != variability_uninitialized)) {
+ /* Set default constant value. */
+ ent->value = new_rd_Unknown(get_const_code_irg(), get_type_mode(ent->type));
+ }
+
+ if ((is_compound_type(ent->type)) &&
+ (var == variability_uninitialized) && (ent->variability != variability_uninitialized)) {
+ /* Free datastructures for constant values */
+ DEL_ARR_F(ent->values); ent->values = NULL;
+ DEL_ARR_F(ent->val_paths); ent->val_paths = NULL;
+ }
+ ent->variability = var;
+}
+
+/* return the name of the variablity */
+const char *get_variability_name(ent_variability var)
+{
+#define X(a) case a: return #a
+ switch (var) {
+ X(variability_uninitialized);
+ X(variability_initialized);
+ X(variability_part_constant);
+ X(variability_constant);
+ default: return "BAD VALUE";
+ }
+#undef X
+}
+
+ent_volatility
+(get_entity_volatility)(const entity *ent) {
+ return _get_entity_volatility(ent);
+}
+
+void
+(set_entity_volatility)(entity *ent, ent_volatility vol) {
+ _set_entity_volatility(ent, vol);
+}
+
+/* return the name of the volatility */
+const char *get_volatility_name(ent_volatility var)
+{
+#define X(a) case a: return #a
+ switch (var) {
+ X(volatility_non_volatile);
+ X(volatility_is_volatile);
+ default: return "BAD VALUE";
+ }
+#undef X
+}
+
+peculiarity
+(get_entity_peculiarity)(const entity *ent) {
+ return _get_entity_peculiarity(ent);
+}
+
+void
+(set_entity_peculiarity)(entity *ent, peculiarity pec) {
+ _set_entity_peculiarity(ent, pec);
+}
+
+/* return the name of the peculiarity */
+const char *get_peculiarity_name(peculiarity var)
+{
+#define X(a) case a: return #a
+ switch (var) {
+ X(peculiarity_description);
+ X(peculiarity_inherited);
+ X(peculiarity_existent);
+ default: return "BAD VALUE";
+ }
+#undef X
+}
+
+/* Get the entity's stickyness */
+ent_stickyness
+(get_entity_stickyness)(const entity *ent) {
+ return _get_entity_stickyness(ent);
}
-inline void
-set_entity_type (entity *ent, type *type) {
- ent->type = type;
+/* Set the entity's stickyness */
+void
+(set_entity_stickyness)(entity *ent, ent_stickyness stickyness) {
+ _set_entity_stickyness(ent, stickyness);
}
-inline ir_graph *
-get_entity_irg(entity *ent) {
- assert (ent);
- assert (get_kind(ent->type) == k_type_method);
- return ent->irg;
+/* Set has no effect for existent entities of type method. */
+ir_node *
+get_atomic_ent_value(entity *ent)
+{
+ assert(ent && is_atomic_entity(ent));
+ assert(ent->variability != variability_uninitialized);
+ return skip_Id (ent->value);
}
-inline void
+void
+set_atomic_ent_value(entity *ent, ir_node *val) {
+ assert(is_atomic_entity(ent) && (ent->variability != variability_uninitialized));
+ if (is_Method_type(ent->type) && (ent->peculiarity == peculiarity_existent))
+ return;
+ ent->value = val;
+}
+
+/* Returns true if the the node is representable as code on
+ * const_code_irg. */
+int is_irn_const_expression(ir_node *n) {
+ ir_mode *m;
+
+ /* we are in danger iff an exception will arise. TODO: be more precisely,
+ * for instance Div. will NOT rise if divisor != 0
+ */
+ if (is_binop(n) && !is_fragile_op(n))
+ return is_irn_const_expression(get_binop_left(n)) && is_irn_const_expression(get_binop_right(n));
+
+ m = get_irn_mode(n);
+ switch(get_irn_opcode(n)) {
+ case iro_Const:
+ case iro_SymConst:
+ case iro_Unknown:
+ return true; break;
+ case iro_Conv:
+ case iro_Cast:
+ return is_irn_const_expression(get_irn_n(n, 0));
+ default:
+ return false;
+ break;
+ }
+ return false;
+}
+
+
+ir_node *copy_const_value(ir_node *n) {
+ ir_node *nn;
+ ir_mode *m;
+
+ /* @@@ GL I think we should implement this using the routines from irgopt for
+ dead node elimination/inlineing. */
+
+ m = get_irn_mode(n);
+ switch(get_irn_opcode(n)) {
+ case iro_Const:
+ nn = new_Const(m, get_Const_tarval(n)); set_Const_type(nn, get_Const_type(n));
+ //nn = new_rd_Const_type(get_irn_dbg_info(n), current_ir_graph, get_cur_block(),
+ // m, get_Const_tarval(n), get_Const_type(n));
+ break;
+ case iro_SymConst:
+ nn = new_d_SymConst_type(NULL, get_SymConst_symbol(n), get_SymConst_kind(n),
+ get_SymConst_value_type(n));
+ break;
+ case iro_Add:
+ nn = new_Add(copy_const_value(get_Add_left(n)),
+ copy_const_value(get_Add_right(n)), m); break;
+ case iro_Sub:
+ nn = new_Sub(copy_const_value(get_Sub_left(n)),
+ copy_const_value(get_Sub_right(n)), m); break;
+ case iro_Mul:
+ nn = new_Mul(copy_const_value(get_Mul_left(n)),
+ copy_const_value(get_Mul_right(n)), m); break;
+ case iro_And:
+ nn = new_And(copy_const_value(get_And_left(n)),
+ copy_const_value(get_And_right(n)), m); break;
+ case iro_Or:
+ nn = new_Or(copy_const_value(get_Or_left(n)),
+ copy_const_value(get_Or_right(n)), m); break;
+ case iro_Eor:
+ nn = new_Eor(copy_const_value(get_Eor_left(n)),
+ copy_const_value(get_Eor_right(n)), m); break;
+ case iro_Cast:
+ nn = new_Cast(copy_const_value(get_Cast_op(n)), get_Cast_type(n)); break;
+ case iro_Conv:
+ nn = new_Conv(copy_const_value(get_Conv_op(n)), m); break;
+ case iro_Unknown:
+ nn = new_Unknown(m); break;
+ default:
+ DDMN(n);
+ assert(0 && "opcode invalid or not implemented");
+ nn = NULL;
+ break;
+ }
+ return nn;
+}
+
+compound_graph_path *
+new_compound_graph_path(type *tp, int length) {
+ compound_graph_path *res;
+
+ assert(is_type(tp) && is_compound_type(tp));
+ assert(length > 0);
+
+ res = xmalloc(sizeof(*res) + (length-1) * sizeof(res->nodes[0]));
+ memset(res, 0, sizeof(*res) + (length-1) * sizeof(res->nodes[0]));
+ res->kind = k_ir_compound_graph_path;
+ res->tp = tp;
+ res->len = length;
+ res->arr_indicees = xcalloc(length, sizeof(res ->arr_indicees[0]));
+
+ return res;
+}
+
+void
+free_compound_graph_path (compound_graph_path *gr) {
+ assert(gr && is_compound_graph_path(gr));
+ gr->kind = k_BAD;
+ free(gr ->arr_indicees);
+ free(gr);
+}
+
+int
+is_compound_graph_path(void *thing) {
+ return (get_kind(thing) == k_ir_compound_graph_path);
+}
+
+/* checks whether nodes 0..pos are correct (all lie on a path.) */
+/* @@@ not implemented */
+int is_proper_compound_graph_path(compound_graph_path *gr, int pos) {
+ int i;
+ entity *node;
+ type *owner = gr->tp;
+ for (i = 0; i <= pos; i++) {
+ node = get_compound_graph_path_node(gr, i);
+ if (node == NULL)
+ /* Path not yet complete. */
+ return true;
+ if (get_entity_owner(node) != owner) return false;
+ owner = get_entity_type(node);
+ }
+ if (pos == get_compound_graph_path_length(gr))
+ if (!is_atomic_type(owner)) return false;
+ return true;
+}
+
+int
+get_compound_graph_path_length(compound_graph_path *gr) {
+ assert(gr && is_compound_graph_path(gr));
+ return gr->len;
+}
+
+entity *
+get_compound_graph_path_node(compound_graph_path *gr, int pos) {
+ assert(gr && is_compound_graph_path(gr));
+ assert(pos >= 0 && pos < gr->len);
+ return gr->nodes[pos];
+}
+
+void
+set_compound_graph_path_node(compound_graph_path *gr, int pos, entity *node) {
+ assert(gr && is_compound_graph_path(gr));
+ assert(pos >= 0 && pos < gr->len);
+ assert(is_entity(node));
+ gr->nodes[pos] = node;
+ assert(is_proper_compound_graph_path(gr, pos));
+}
+
+int
+get_compound_graph_path_array_index(compound_graph_path *gr, int pos) {
+ assert(gr && is_compound_graph_path(gr));
+ assert(pos >= 0 && pos < gr->len);
+ return gr->arr_indicees[pos];
+}
+
+void
+set_compound_graph_path_array_index(compound_graph_path *gr, int pos, int index) {
+ assert(gr && is_compound_graph_path(gr));
+ assert(pos >= 0 && pos < gr->len);
+ gr->arr_indicees[pos] = index;
+}
+
+/* A value of a compound entity is a pair of value and the corresponding path to a member of
+ the compound. */
+void
+add_compound_ent_value_w_path(entity *ent, ir_node *val, compound_graph_path *path) {
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ ARR_APP1 (ir_node *, ent->values, val);
+ ARR_APP1 (compound_graph_path *, ent->val_paths, path);
+}
+
+void
+set_compound_ent_value_w_path(entity *ent, ir_node *val, compound_graph_path *path, int pos) {
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ ent->values[pos] = val;
+ ent->val_paths[pos] = path;
+}
+
+int
+get_compound_ent_n_values(entity *ent) {
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ return (ARR_LEN (ent->values));
+}
+
+ir_node *
+get_compound_ent_value(entity *ent, int pos) {
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ return ent->values[pos];
+}
+
+compound_graph_path *
+get_compound_ent_value_path(entity *ent, int pos) {
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ return ent->val_paths[pos];
+}
+
+/**
+ * Returns non-zero, if two compound_graph_pathes are equal
+ */
+static int equal_paths(compound_graph_path *path1, int *visited_indicees, compound_graph_path *path2) {
+ int i;
+ int len1 = get_compound_graph_path_length(path1);
+ int len2 = get_compound_graph_path_length(path2);
+
+ if (len2 > len1) return false;
+
+ for (i = 0; i < len1; i++) {
+ type *tp;
+ entity *node1 = get_compound_graph_path_node(path1, i);
+ entity *node2 = get_compound_graph_path_node(path2, i);
+
+ if (node1 != node2) return false;
+
+ tp = get_entity_owner(node1);
+ if (is_Array_type(tp)) {
+ long low;
+
+ /* Compute the index of this node. */
+ assert(get_array_n_dimensions(tp) == 1 && "multidim not implemented");
+
+ low = get_array_lower_bound_int(tp, 0);
+ if (low + visited_indicees[i] < get_compound_graph_path_array_index(path2, i)) {
+ visited_indicees[i]++;
+ return false;
+ }
+ else
+ assert(low + visited_indicees[i] == get_compound_graph_path_array_index(path2, i));
+ }
+ }
+ return true;
+}
+
+/* Returns the position of a value with the given path.
+ * The path must contain array indicees for all array element entities. */
+int get_compound_ent_pos_by_path(entity *ent, compound_graph_path *path) {
+ int i, n_paths = get_compound_ent_n_values(ent);
+ int *visited_indicees = (int *)xcalloc(get_compound_graph_path_length(path), sizeof(int));
+ for (i = 0; i < n_paths; i ++) {
+ if (equal_paths(get_compound_ent_value_path(ent, i), visited_indicees, path))
+ return i;
+ }
+
+#if 0
+ {
+ int j;
+ printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
+ printf("Entity %s : ", get_entity_name(ent));
+ for (j = 0; j < get_compound_graph_path_length(path); ++j) {
+ entity *node = get_compound_graph_path_node(path, j);
+ printf("%s", get_entity_name(node));
+ if (is_Array_type(get_entity_owner(node)))
+ printf("[%d]", get_compound_graph_path_array_index(path, j));
+ }
+ printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
+ }
+#endif
+
+ assert(0 && "path not found");
+ return -1;
+}
+
+/* Returns a constant value given the access path.
+ * The path must contain array indicees for all array element entities. */
+ir_node *get_compound_ent_value_by_path(entity *ent, compound_graph_path *path) {
+ return get_compound_ent_value(ent, get_compound_ent_pos_by_path(ent, path));
+}
+
+
+void
+remove_compound_ent_value(entity *ent, entity *value_ent) {
+ int i;
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ for (i = 0; i < (ARR_LEN (ent->val_paths)); i++) {
+ compound_graph_path *path = ent->val_paths[i];
+ if (path->nodes[path->len-1] == value_ent) {
+ for(; i < (ARR_LEN (ent->val_paths))-1; i++) {
+ ent->val_paths[i] = ent->val_paths[i+1];
+ ent->values[i] = ent->values[i+1];
+ }
+ ARR_SETLEN(entity*, ent->val_paths, ARR_LEN(ent->val_paths) - 1);
+ ARR_SETLEN(ir_node*, ent->values, ARR_LEN(ent->values) - 1);
+ break;
+ }
+ }
+}
+
+void
+add_compound_ent_value(entity *ent, ir_node *val, entity *member) {
+ compound_graph_path *path;
+ type *owner_tp = get_entity_owner(ent);
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ path = new_compound_graph_path(owner_tp, 1);
+ path->nodes[0] = member;
+ if (is_Array_type(owner_tp)) {
+ int max;
+ int i;
+
+ assert(get_array_n_dimensions(owner_tp) == 1 && has_array_lower_bound(owner_tp, 0));
+ max = get_array_lower_bound_int(owner_tp, 0) -1;
+ for (i = 0; i < get_compound_ent_n_values(ent); ++i) {
+ int index = get_compound_graph_path_array_index(get_compound_ent_value_path(ent, i), 0);
+ if (index > max) {
+ max = index;
+ }
+ }
+ path->arr_indicees[0] = max + 1;
+ }
+ add_compound_ent_value_w_path(ent, val, path);
+}
+
+/* Copies the firm subgraph referenced by val to const_code_irg and adds
+ the node as constant initialization to ent.
+ The subgraph may not contain control flow operations.
+void
+copy_and_add_compound_ent_value(entity *ent, ir_node *val, entity *member) {
+ ir_graph *rem = current_ir_graph;
+
+ assert(get_entity_variability(ent) != variability_uninitialized);
+ current_ir_graph = get_const_code_irg();
+
+ val = copy_const_value(val);
+ add_compound_ent_value(ent, val, member);
+ current_ir_graph = rem;
+ }*/
+
+/* Copies the value i of the entity to current_block in current_ir_graph.
+ir_node *
+copy_compound_ent_value(entity *ent, int pos) {
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ return copy_const_value(ent->values[pos+1]);
+ }*/
+
+entity *
+get_compound_ent_value_member(entity *ent, int pos) {
+ compound_graph_path *path;
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ path = get_compound_ent_value_path(ent, pos);
+
+ return get_compound_graph_path_node(path, get_compound_graph_path_length(path)-1);
+}
+
+void
+set_compound_ent_value(entity *ent, ir_node *val, entity *member, int pos) {
+ compound_graph_path *path;
+ assert(is_compound_entity(ent) && (ent->variability != variability_uninitialized));
+ path = get_compound_ent_value_path(ent, pos);
+ set_compound_graph_path_node(path, 0, member);
+ set_compound_ent_value_w_path(ent, val, path, pos);
+}
+
+void
+set_array_entity_values(entity *ent, tarval **values, int num_vals) {
+ int i;
+ ir_graph *rem = current_ir_graph;
+ type *arrtp = get_entity_type(ent);
+ ir_node *val;
+ type *elttp = get_array_element_type(arrtp);
+
+ assert(is_Array_type(arrtp));
+ assert(get_array_n_dimensions(arrtp) == 1);
+ /* One bound is sufficient, the number of constant fields makes the
+ size. */
+ assert(get_array_lower_bound (arrtp, 0) || get_array_upper_bound (arrtp, 0));
+ assert(get_entity_variability(ent) != variability_uninitialized);
+ current_ir_graph = get_const_code_irg();
+
+ for (i = 0; i < num_vals; i++) {
+ val = new_Const_type(values[i], elttp);
+ add_compound_ent_value(ent, val, get_array_element_entity(arrtp));
+ set_compound_graph_path_array_index(get_compound_ent_value_path(ent, i), 0, i);
+ }
+ current_ir_graph = rem;
+}
+
+int get_compound_ent_value_offset_bits(entity *ent, int pos) {
+ compound_graph_path *path;
+ int i, path_len;
+ int offset = 0;
+
+ 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);
+
+ for (i = 0; i < path_len; ++i) {
+ entity *node = get_compound_graph_path_node(path, i);
+ type *node_tp = get_entity_type(node);
+ type *owner_tp = get_entity_owner(node);
+ if (is_Array_type(owner_tp)) {
+ int size = get_type_size_bits(node_tp);
+ int align = get_type_alignment_bits(node_tp);
+ if (size < align)
+ size = align;
+ else {
+ assert(size % align == 0);
+ /* ansonsten aufrunden */
+ }
+ offset += size * get_compound_graph_path_array_index(path, i);
+ } else {
+ offset += get_entity_offset_bits(node);
+ }
+ }
+ return offset;
+}
+
+int get_compound_ent_value_offset_bytes(entity *ent, int pos) {
+ int offset = get_compound_ent_value_offset_bits(ent, pos);
+ assert(offset % 8 == 0);
+ return offset >> 3;
+}
+
+
+static void init_index(type *arr) {
+ int init;
+ int dim = 0;
+
+ assert(get_array_n_dimensions(arr) == 1);
+
+ if (has_array_lower_bound(arr, dim))
+ init = get_array_lower_bound_int(arr, 0) -1;
+ else
+ init = get_array_upper_bound_int(arr, 0) +1;
+
+ set_entity_link(get_array_element_entity(arr), (void *)init);
+}
+
+
+static int get_next_index(entity *elem_ent) {
+ type *arr = get_entity_owner(elem_ent);
+ int next;
+ int dim = 0;
+
+ assert(get_array_n_dimensions(arr) == 1);
+
+ if (has_array_lower_bound(arr, dim)) {
+ next = (int)get_entity_link(elem_ent) +1;
+ if (has_array_upper_bound(arr, dim)) {
+ int upper = get_array_upper_bound_int(arr, dim);
+ if (next == upper) next = get_array_lower_bound_int(arr, dim);
+ }
+ } else {
+ next = (int)get_entity_link(elem_ent) -1;
+ if (has_array_lower_bound(arr, dim)) {
+ int upper = get_array_upper_bound_int(arr, dim);
+ if (next == upper) next = get_array_upper_bound_int(arr, dim);
+ }
+ }
+
+ set_entity_link(elem_ent, (void *)next);
+ return next;
+}
+
+/* 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.
+ *
+ * (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.)
+ */
+void compute_compound_ent_array_indicees(entity *ent) {
+ type *tp = get_entity_type(ent);
+ int i, n_vals;
+ entity *unknown_bound_entity = NULL;
+
+ if (!is_compound_type(tp) ||
+ (ent->variability == variability_uninitialized)) return ;
+
+ n_vals = get_compound_ent_n_values(ent);
+ if (n_vals == 0) return;
+
+ /* We can not compute the indexes if there is more than one array
+ with an unknown bound. For this remember the first entity that
+ represents such an array. It could be ent. */
+ if (is_Array_type(tp)) {
+ int dim = 0;
+
+ assert(get_array_n_dimensions(tp) == 1 && "other not implemented");
+ if (!has_array_lower_bound(tp, dim) || !has_array_upper_bound(tp, dim))
+ unknown_bound_entity = ent;
+ }
+
+ /* Initialize the entity links to lower bound -1 and test all path elements
+ for known bounds. */
+ for (i = 0; i < n_vals; ++i) {
+ compound_graph_path *path = get_compound_ent_value_path(ent, i);
+ int j, path_len = get_compound_graph_path_length(path);
+ for (j = 0; j < path_len; ++j) {
+ entity *node = get_compound_graph_path_node(path, j);
+ type *elem_tp = get_entity_type(node);
+
+ if (is_Array_type(elem_tp)) {
+ int dim = 0;
+ assert(get_array_n_dimensions(elem_tp) == 1 && "other not implemented");
+ if (!has_array_lower_bound(elem_tp, dim) || !has_array_upper_bound(elem_tp, dim)) {
+ if (!unknown_bound_entity) unknown_bound_entity = node;
+ if (node != unknown_bound_entity) return;
+ }
+
+ init_index(elem_tp);
+ }
+ }
+ }
+
+ /* Finally compute the indexes ... */
+ for (i = 0; i < n_vals; ++i) {
+ compound_graph_path *path = get_compound_ent_value_path(ent, i);
+ int j, path_len = get_compound_graph_path_length(path);
+ for (j = 0; j < path_len; ++j) {
+ entity *node = get_compound_graph_path_node(path, j);
+ type *owner_tp = get_entity_owner(node);
+ if (is_Array_type(owner_tp))
+ set_compound_graph_path_array_index (path, j, get_next_index(node));
+ }
+ }
+}
+
+/** resize: double the allocated buffer */
+static int *resize (int *buf, int *size) {
+ int new_size = *size * 2;
+ int *new_buf = xcalloc(new_size, sizeof(new_buf[0]));
+ memcpy(new_buf, buf, *size);
+ free(buf);
+ *size = new_size;
+ return new_buf;
+}
+
+/* We sort the elements by placing them at their bit offset in an
+ array where each entry represents one bit called permutation. In
+ fact, we do not place the values themselves, as we would have to
+ copy two things, the value and the path. We only remember the
+ position in the old order. Each value should have a distinct
+ position in the permutation.
+
+ A second iteration now permutes the actual elements into two
+ new arrays. */
+void sort_compound_ent_values(entity *ent) {
+ type *tp;
+ int i, n_vals;
+ int tp_size;
+ int size;
+ int *permutation;
+
+ int next;
+ ir_node **my_values;
+ compound_graph_path **my_paths;
+
+ assert(get_type_state(get_entity_type(ent)) == layout_fixed);
+
+ tp = get_entity_type(ent);
+ n_vals = get_compound_ent_n_values(ent);
+ tp_size = get_type_size_bits(tp);
+
+ if (!is_compound_type(tp) ||
+ (ent->variability == variability_uninitialized) ||
+ (get_type_state(tp) != layout_fixed) ||
+ (n_vals == 0) ) return;
+
+ /* estimated upper bound for size. Better: use flexible array ... */
+ size = ((tp_size > (n_vals * 32)) ? tp_size : (n_vals * 32)) * 4;
+ permutation = xcalloc(size, sizeof(permutation[0]));
+
+ for (i = 0; i < n_vals; ++i) {
+ int pos = get_compound_ent_value_offset_bits(ent, i);
+ while (pos >= size) {
+ permutation = resize(permutation, &size);
+ }
+ assert(pos < size);
+ assert(permutation[pos] == 0 && "two values with the same offset");
+ permutation[pos] = i + 1; /* We initialized with 0, so we can not distinguish entry 0.
+ So inc all entries by one. */
+ //fprintf(stderr, "i: %d, pos: %d \n", i, pos);
+ }
+
+ next = 0;
+ my_values = NEW_ARR_F(ir_node *, n_vals);
+ my_paths = NEW_ARR_F(compound_graph_path *, n_vals);
+ for (i = 0; i < size; ++i) {
+ int pos = permutation[i];
+ if (pos) {
+ //fprintf(stderr, "pos: %d i: %d next %d \n", i, pos, next);
+ assert(next < n_vals);
+ pos--; /* We increased the pos by one */
+ my_values[next] = get_compound_ent_value (ent, pos);
+ my_paths [next] = get_compound_ent_value_path(ent, pos);
+ next++;
+ }
+ }
+ free(permutation);
+
+ DEL_ARR_F(ent->values);
+ ent->values = my_values;
+ DEL_ARR_F(ent->val_paths);
+ ent->val_paths = my_paths;
+}
+
+int
+(get_entity_offset_bytes)(const entity *ent) {
+ return _get_entity_offset_bytes(ent);
+}
+
+int
+(get_entity_offset_bits)(const entity *ent) {
+ return _get_entity_offset_bits(ent);
+}
+
+void
+(set_entity_offset_bytes)(entity *ent, int offset) {
+ _set_entity_offset_bytes(ent, offset);
+}
+
+void
+(set_entity_offset_bits)(entity *ent, int offset) {
+ _set_entity_offset_bits(ent, offset);
+}
+
+void
+add_entity_overwrites(entity *ent, entity *overwritten) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ ARR_APP1(entity *, ent->overwrites, overwritten);
+ ARR_APP1(entity *, overwritten->overwrittenby, ent);
+}
+
+int
+get_entity_n_overwrites(entity *ent) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ return (ARR_LEN(ent->overwrites));
+}
+
+int
+get_entity_overwrites_index(entity *ent, entity *overwritten) {
+ int i;
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ for (i = 0; i < get_entity_n_overwrites(ent); i++)
+ if (get_entity_overwrites(ent, i) == overwritten)
+ return i;
+ return -1;
+}
+
+entity *
+get_entity_overwrites (entity *ent, int pos) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ assert(pos < get_entity_n_overwrites(ent));
+ return ent->overwrites[pos];
+}
+
+void
+set_entity_overwrites (entity *ent, int pos, entity *overwritten) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ assert(pos < get_entity_n_overwrites(ent));
+ ent->overwrites[pos] = overwritten;
+}
+
+void
+remove_entity_overwrites(entity *ent, entity *overwritten) {
+ int i;
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ for (i = 0; i < (ARR_LEN (ent->overwrites)); i++)
+ if (ent->overwrites[i] == overwritten) {
+ for(; i < (ARR_LEN (ent->overwrites))-1; i++)
+ ent->overwrites[i] = ent->overwrites[i+1];
+ ARR_SETLEN(entity*, ent->overwrites, ARR_LEN(ent->overwrites) - 1);
+ break;
+ }
+}
+
+void
+add_entity_overwrittenby (entity *ent, entity *overwrites) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ add_entity_overwrites(overwrites, ent);
+}
+
+int
+get_entity_n_overwrittenby (entity *ent) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ return (ARR_LEN (ent->overwrittenby));
+}
+
+int
+get_entity_overwrittenby_index(entity *ent, entity *overwrites) {
+ int i;
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ for (i = 0; i < get_entity_n_overwrittenby(ent); i++)
+ if (get_entity_overwrittenby(ent, i) == overwrites)
+ return i;
+ return -1;
+}
+
+entity *
+get_entity_overwrittenby (entity *ent, int pos) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ assert(pos < get_entity_n_overwrittenby(ent));
+ return ent->overwrittenby[pos];
+}
+
+void
+set_entity_overwrittenby (entity *ent, int pos, entity *overwrites) {
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ assert(pos < get_entity_n_overwrittenby(ent));
+ ent->overwrittenby[pos] = overwrites;
+}
+
+void remove_entity_overwrittenby(entity *ent, entity *overwrites) {
+ int i;
+ assert(ent && is_Class_type(get_entity_owner(ent)));
+ for (i = 0; i < (ARR_LEN (ent->overwrittenby)); i++)
+ if (ent->overwrittenby[i] == overwrites) {
+ for(; i < (ARR_LEN (ent->overwrittenby))-1; i++)
+ ent->overwrittenby[i] = ent->overwrittenby[i+1];
+ ARR_SETLEN(entity*, ent->overwrittenby, ARR_LEN(ent->overwrittenby) - 1);
+ break;
+ }
+}
+
+/* A link to store intermediate information */
+void *
+(get_entity_link)(const entity *ent) {
+ return _get_entity_link(ent);
+}
+
+void
+(set_entity_link)(entity *ent, void *l) {
+ _set_entity_link(ent, l);
+}
+
+ir_graph *
+(get_entity_irg)(const entity *ent) {
+ return _get_entity_irg(ent);
+}
+
+void
set_entity_irg(entity *ent, ir_graph *irg) {
- assert (ent && ent->type);
- assert (irg);
- assert (get_kind(ent->type) == k_type_method);
+ assert(ent && is_Method_type(get_entity_type(ent)));
+ /* Wie kann man die Referenz auf einen IRG löschen, z.B. wenn die
+ * Methode selbst nicht mehr aufgerufen werden kann, die Entität
+ * aber erhalten bleiben soll? Wandle die Entitaet in description oder
+ * inherited um! */
+ /* assert(irg); */
+ assert((irg && ent->peculiarity == peculiarity_existent) ||
+ (!irg && (ent->peculiarity == peculiarity_existent)
+ && (ent -> visibility == visibility_external_allocated)) ||
+ (!irg && ent->peculiarity == peculiarity_description) ||
+ (!irg && ent->peculiarity == peculiarity_inherited));
ent->irg = irg;
}
+
+int
+(is_entity)(const void *thing) {
+ return _is_entity(thing);
+}
+
+int is_atomic_entity(entity *ent) {
+ type* t = get_entity_type(ent);
+ assert(ent && ent->kind == k_entity);
+ return (is_Primitive_type(t) || is_Pointer_type(t) ||
+ is_Enumeration_type(t) || is_Method_type(t));
+}
+
+int is_compound_entity(entity *ent) {
+ type* t = get_entity_type(ent);
+ assert(ent && ent->kind == k_entity);
+ return (is_Class_type(t) || is_Struct_type(t) ||
+ is_Array_type(t) || is_Union_type(t));
+}
+
+/**
+ * @todo not implemented!!! */
+bool equal_entity(entity *ent1, entity *ent2) {
+ fprintf(stderr, " calling unimplemented equal entity!!! \n");
+ return true;
+}
+
+
+unsigned long get_entity_visited(entity *ent) {
+ assert(ent && ent->kind == k_entity);
+ return ent->visit;
+}
+void set_entity_visited(entity *ent, unsigned long num) {
+ assert(ent && ent->kind == k_entity);
+ ent->visit = num;
+}
+/* Sets visited field in entity to entity_visited. */
+void mark_entity_visited(entity *ent) {
+ assert(ent && ent->kind == k_entity);
+ ent->visit = type_visited;
+}
+
+
+bool entity_visited(entity *ent) {
+ assert(ent && ent->kind == k_entity);
+ return get_entity_visited(ent) >= type_visited;
+}
+
+bool entity_not_visited(entity *ent) {
+ assert(ent && ent->kind == k_entity);
+ return get_entity_visited(ent) < type_visited;
+}