#include "irgmod.h"
#include "irnode_t.h"
#include "irflag_t.h"
+#include "irmode_t.h"
#include "dbginfo_t.h"
+#include "irdump.h"
+
/* Eindeutige Adresse zur Markierung von besuchten Knoten und zur
* Darstellung der unbekannten Methode. */
static void * MARK = &MARK;
static eset * entities = NULL;
-/* Bestimmt die eindeutige Methode, die die Methode für den
- * übergebenene (dynamischen) Typ überschreibt. */
-entity * get_implementation(type * class, entity * method) {
+/** Bestimmt die eindeutige Methode, die die Methode für den
+ * übergebenen (dynamischen) Typ überschreibt. */
+static entity * get_implementation(type * class, entity * method) {
int i;
if (get_entity_peculiarity(method) != peculiarity_description &&
get_entity_owner(method) == class) {
return NULL;
}
-/* Returns the entity that contains the implementation of the inherited
- entity if available, else returns the entity passed. */
-entity *get_inherited_methods_implementation(entity *inh_meth) {
+/** Returns the entity that contains the implementation of the inherited
+ entity if available, else returns the entity passed. */
+static entity *get_inherited_methods_implementation(entity *inh_meth) {
entity *impl_meth = NULL;
ir_node *addr = get_atomic_ent_value(inh_meth);
assert(addr && "constant entity without value");
assert(0 && "Complex constant values not supported -- address of method should be straight constant!");
}
if (impl_meth && (get_entity_peculiarity(impl_meth) != peculiarity_existent)) {
- printf("this_meth: "); DDMEO(inh_meth);
- printf("impl meth: "); DDMEO(impl_meth);
- assert(!impl_meth || get_entity_peculiarity(impl_meth) == peculiarity_existent);
+ /*
+ printf("this_meth: "); DDMEO(inh_meth);
+ printf("impl meth: "); DDMEO(impl_meth);
+ assert(!impl_meth || get_entity_peculiarity(impl_meth) == peculiarity_existent);
+ */
+ impl_meth = NULL;
}
return impl_meth? impl_meth : inh_meth;
}
-/* Collect the entity representing the implementation of this
- entity (not the same if inherited) and all entities for overwriting
- implementations in "set".
- If the implementation of the method is not included in the
- compilation unit "open" is set to true.
- A recursive descend in the overwritten relation.
- Cycle-free, therefore must terminate. */
-void collect_impls(entity *method, eset *set, int *size, bool *open) {
+/** Collect the entity representing the implementation of this
+ * entity (not the same if inherited) and all entities for overwriting
+ * implementations in "set".
+ * If the implementation of the method is not included in the
+ * compilation unit "open" is set to true.
+ * A recursive descend in the overwritten relation.
+ * Cycle-free, therefore must terminate.
+ *
+ * @param method
+ * @param set A set of entities.
+ * @param size Number of entities in set.
+ * @param open
+ */
+static void collect_impls(entity *method, eset *set, int *size, bool *open) {
int i;
+
if (get_entity_peculiarity(method) == peculiarity_existent) {
if (get_entity_visibility(method) == visibility_external_allocated) {
assert(get_entity_irg(method) == NULL);
}
}
}
+
if (get_entity_peculiarity(method) == peculiarity_inherited) {
entity *impl_ent = get_inherited_methods_implementation(method);
assert(impl_ent && "no implementation for inherited entity");
}
-/* Alle Methoden bestimmen, die die übergebene Methode überschreiben
- * (und implementieren). In der zurückgegebenen Reihung kommt jede
- * Methode nur einmal vor. Der Wert 'NULL' steht für unbekannte
- * (externe) Methoden. Die zurückgegebene Reihung muß vom Aufrufer
- * wieder freigegeben werden (siehe "DEL_ARR_F"). Gibt es überhaupt
- * keine Methoden, die die "method" überschreiben, so gibt die Methode
- * "NULL" zurück. */
+/** Alle Methoden bestimmen, die die übergebene Methode überschreiben
+ * (und implementieren). In der zurückgegebenen Reihung kommt jede
+ * Methode nur einmal vor. Der Wert 'NULL' steht für unbekannte
+ * (externe) Methoden. Die zurückgegebene Reihung muß vom Aufrufer
+ * wieder freigegeben werden (siehe "DEL_ARR_F"). Gibt es überhaupt
+ * keine Methoden, die "method" überschreiben, so gibt die Methode
+ * "NULL" zurück.
+ *
+ * @param method
+ */
static entity ** get_impl_methods(entity * method) {
eset * set = eset_create();
int size = 0;
entity ** arr;
bool open = false;
- /** Collect all method entities that can be called here **/
+ /* Collect all method entities that can be called here */
collect_impls(method, set, &size, &open);
-/**
- Vorgaenger einfuegen. **/
+ /* Vorgaenger einfuegen. */
if (size == 0 && !open) {
/* keine implementierte überschriebene Methode */
arr = NULL;
__dbg_info_merge_pair(new_node, node, dbg_rem_poly_call)
+
+/** Analyse address computations.
+ *
+ * - If the node is a SymConst replace it by Const(ent) if possible.
+ * - If the node is a Sel:
+ * * If the pointer to the Sel comes directly from an Alloc node
+ * replace the Sel by a Const(ent).
+ *
+ *
+ * @param node The node to analyze
+ * @param ldname_map A map that mapps names of entities to the entities.
+ */
static void sel_methods_walker(ir_node * node, pmap * ldname_map) {
+
if (get_irn_op(node) == op_SymConst) {
/* Wenn möglich SymConst-Operation durch Const-Operation
* ersetzen. */
if (get_SymConst_kind(node) == linkage_ptr_info) {
- pmap_entry * entry = pmap_find(ldname_map, (void *) get_SymConst_ptrinfo(node));
+ pmap_entry *entry = pmap_find(ldname_map, (void *) get_SymConst_ptrinfo(node));
if (entry != NULL) { /* Method is declared in the compiled code */
- entity * ent = entry->value;
- if (get_opt_normalize() && (get_entity_visibility(ent) != visibility_external_allocated)) { /* Meth. is defined */
+ entity *ent = entry->value;
+ if (get_opt_normalize() && (get_entity_visibility(ent) != visibility_external_allocated)) {
+ /* Meth. is defined */
ir_node *new_node;
assert(get_entity_irg(ent));
set_irg_current_block(current_ir_graph, get_nodes_Block(node));
* Sel-Operation durch eine Const- bzw. SymConst-Operation
* ersetzen. */
set_irg_current_block(current_ir_graph, get_nodes_Block(node));
+ /* assert(get_entity_peculiarity(tarval_to_entity(get_Const_tarval(get_atomic_ent_value(arr[0])))) == peculiarity_existent); */
new_node = copy_const_value(get_atomic_ent_value(arr[0])); DBG_OPT_POLY;
exchange (node, new_node);
}
}
-/* Datenstruktur initialisieren. Zusätzlich werden alle
- * SymConst-Operationen, die auf interne Methoden verweisen, durch
- * Const-Operationen ersetzt. */
+/** Datenstruktur initialisieren. Zusätzlich werden alle
+ * SymConst-Operationen, die auf interne Methoden verweisen, durch
+ * Const-Operationen ersetzt. */
static void sel_methods_init(void) {
int i;
- pmap * ldname_map = pmap_create();
+ pmap * ldname_map = pmap_create(); /* Map entitiy names to entities: to replace SymConst by Const(ent). */
assert(entities == NULL);
entities = eset_create();
for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
entity * ent = tarval_to_entity(get_Const_tarval(node));
assert(ent && is_method_type(get_entity_type(ent)));
if (get_entity_visibility(ent) != visibility_external_allocated) {
- assert(get_entity_irg(ent));
+ if (!get_entity_irg(ent)) {
+ dump_entity(ent);
+ assert(get_entity_irg(ent));
+ }
eset_insert(methods, ent);
} else {
eset_insert(methods, MARK); /* free method -> unknown */
/* exchange(call, new_Bad()); invalid firm */
ir_node *mem = get_Call_mem(call);
- turn_into_tuple (call, pn_Call_max);
+ turn_into_tuple (call, 5 /* pn_Call_max */);
set_Tuple_pred(call, pn_Call_M_regular , mem);
set_Tuple_pred(call, pn_Call_T_result , new_Bad());
set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
for (i = get_irn_arity(node) - 1; i >= 0; --i) {
ir_node * pred = get_irn_n(node, i);
if (mode_is_reference(get_irn_mode(pred))) {
- free_mark(pred, set);
+ free_mark(pred, set);
}
}
break;
DEL_ARR_F(free_meths);
}
+
+
+static void destruct_walker(ir_node * node, void * env) {
+ if (get_irn_op(node) == op_Call) {
+ remove_Call_callee_arr(node);
+ }
+}
+
+void free_callee_info(ir_graph *irg) {
+ irg_walk_graph(irg, destruct_walker, NULL, NULL);
+ set_irg_callee_info_state(irg, irg_callee_info_none);
+}
+
+
/* Optimize the address expressions passed to call nodes.
- * Alle SymConst-Operationen, die auf interne Methoden verweisen,
- * werden durch Const-Operationen ersetzt.
- * Sel Knoten deren entitaeten nicht ueberschrieben werden, werden
- * durch Const ersetzt.
- * Sel Knoten, fuer die keine Implementierung existiert, werden
- * durch Bad ersetzt. */
+ *
+ * This optimization performs the following transformations for
+ * all ir graphs:
+ * - All SymConst operations that refer to intern methods are replaced
+ * by Const operations refering to the corresponding entity.
+ * - Sel nodes, that select entities that are not overwritten are
+ * replaced by Const nodes refering to the selected entity.
+ * - Sel nodes, for witch no method exists at all are replaced by Bad
+ * nodes.
+ * - Sel nodes with a pointer input that is an Alloc node are replaced
+ * by Const nodes refering to the entity that implements the method in
+ * the type given by the Alloc node.
+ */
void opt_call_addrs(void) {
sel_methods_init();
sel_methods_dispose();
projects / libfirm / blobdiff