X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firopt_t.h;h=effa924e3e43f6ec8d2c80812b53c9c6c544cad7;hb=3c3425a50a1d721b74a015c6812257e32feeac85;hp=1aee93b75a7db7e0b9cbdad07f4dd7fec9c641f2;hpb=ab182d4b9ed44239ab3ff1d08b2f8e14a3699ccf;p=libfirm

diff --git a/ir/ir/iropt_t.h b/ir/ir/iropt_t.h
index 1aee93b75..effa924e3 100644
--- a/ir/ir/iropt_t.h
+++ b/ir/ir/iropt_t.h
@@ -21,7 +21,6 @@
  * @file
  * @brief    iropt --- optimizations intertwined with IR construction -- private header.
  * @author   Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
- * @version  $Id$
  */
 #ifndef FIRM_IR_IROPT_T_H
 #define FIRM_IR_IROPT_T_H
@@ -52,21 +51,20 @@ ir_node *equivalent_node(ir_node *n);
 /**
  * Creates a new value table used for storing CSE identities.
  * The value table is used to identify common expressions.
- *
  */
-pset *new_identities(void);
+void new_identities(ir_graph *irg);
 
 /**
  * Deletes a identities value table.
  *
  * @param value_table  the identity set
  */
-void del_identities(pset *value_table);
+void del_identities(ir_graph *irg);
 
 /**
  * Add a node to the identities value table.
  */
-void add_identities(pset *value_table, ir_node *node);
+void add_identities(ir_node *node);
 
 /**
  * Compare function for two nodes in the hash table. Gets two
@@ -79,7 +77,7 @@ int identities_cmp(const void *elt, const void *key);
  * Looks up the node in a hash table, enters it in the table
  * if it isn't there yet.
  */
-ir_node *identify_remember(pset *value_table, ir_node *n);
+ir_node *identify_remember(ir_node *n);
 
 /** Visit each node in the value table of a graph. */
 void visit_all_identities(ir_graph *irg, irg_walk_func visit, void *env);
@@ -102,7 +100,7 @@ ir_node *optimize_in_place_2(ir_node *n);
  * returning tarval_bad otherwise.
  * No calculations are done here, just a lookup.
  */
-typedef tarval *(*value_of_func)(const ir_node *self);
+typedef ir_tarval *(*value_of_func)(const ir_node *self);
 
 extern value_of_func value_of_ptr;
 
@@ -116,52 +114,30 @@ void set_value_of_func(value_of_func func);
 /**
  * Returns the associated tarval of a node.
  */
-static inline tarval *value_of(const ir_node *n)
+static inline ir_tarval *value_of(const ir_node *n)
 {
 	return value_of_ptr(n);
 }
 
 /**
- * Sets the default operations for an ir_op_ops.
- *
- * @param code   the opcode for the default operation
- * @param ops    the operations initialized
- *
- * @return
- *    The operations.
+ * returns true if a value becomes zero when converted to mode @p mode
  */
-ir_op_ops *firm_set_default_operations(ir_opcode code, ir_op_ops *ops);
-
-/**
- * Returns true if a == -b
- */
-bool is_negated_value(ir_node *a, ir_node *b);
-
+bool ir_zero_when_converted(const ir_node *node, ir_mode *dest_mode);
 
+int ir_mux_is_abs(const ir_node *sel, const ir_node *mux_false,
+                  const ir_node *mux_true);
 
-/** NOTE: Survive DCE is considered a bad hack - don't use */
-typedef struct survive_dce_t survive_dce_t;
+ir_node *ir_get_abs_op(const ir_node *sel, ir_node *mux_false,
+                       ir_node *mux_true);
 
 /**
- * Make a new Survive DCE environment.
- * NOTE: Survive DCE is considered a bad hack - don't use
+ * return true if the Mux node will be optimized away. This can be used for
+ * the if-conversion callback. Allowing these Muxes should be always safe, even
+ * if the backend cannot handle them.
  */
-survive_dce_t *new_survive_dce(void);
+bool ir_is_optimizable_mux(const ir_node *sel, const ir_node *mux_false,
+                           const ir_node *mux_true);
 
-/**
- * Free a Survive DCE environment.
- * NOTE: Survive DCE is considered a bad hack - don't use
- */
-void free_survive_dce(survive_dce_t *sd);
-
-/**
- * Register a node pointer to be patched upon DCE.
- * When DCE occurs, the node pointer specified by @p place will be
- * patched to the new address of the node it is pointing to.
- *
- * @param sd    The Survive DCE environment.
- * @param place The address of the node pointer.
- */
-void survive_dce_register_irn(survive_dce_t *sd, ir_node **place);
+void ir_register_opt_node_ops(void);
 
 #endif