X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firopt_t.h;h=468b3822744b9654bc4793e435b63b30a13046d6;hb=daba4aa82ec48b142c6d48d9a4b2d0bfffc92683;hp=93a3ea18c0b24422c0dd50f5156b94153df98bbf;hpb=ce7643e41305a037d682b3087da7e1f927f84b5e;p=libfirm

diff --git a/ir/ir/iropt_t.h b/ir/ir/iropt_t.h
index 93a3ea18c..468b38227 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
@@ -121,39 +120,63 @@ static inline ir_tarval *value_of(const ir_node *n)
 }
 
 /**
- * Sets the default operations for an ir_op_ops.
+ * returns true if a value becomes zero when converted to mode @p mode
+ */
+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);
+
+ir_node *ir_get_abs_op(const ir_node *sel, ir_node *mux_false,
+                       ir_node *mux_true);
+
+/**
+ * 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.
+ */
+bool ir_is_optimizable_mux(const ir_node *sel, const ir_node *mux_false,
+                           const ir_node *mux_true);
+
+/**
+ * Set the default hash operation in an ir_op_ops.
  *
  * @param code   the opcode for the default operation
  * @param ops    the operations initialized
- *
- * @return
- *    The operations.
  */
-ir_op_ops *firm_set_default_operations(unsigned code, ir_op_ops *ops);
+void firm_set_default_hash(unsigned code, ir_op_ops *ops);
 
-/** NOTE: Survive DCE is considered a bad hack - don't use */
-typedef struct survive_dce_t survive_dce_t;
+/**
+ * Set the default computed_value evaluator in an ir_op_ops.
+ *
+ * @param code   the opcode for the default operation
+ * @param ops    the operations initialized
+ */
+void firm_set_default_computed_value(ir_opcode code, ir_op_ops *ops);
 
 /**
- * Make a new Survive DCE environment.
- * NOTE: Survive DCE is considered a bad hack - don't use
+ * Sets the default equivalent node operation for an ir_op_ops.
+ *
+ * @param code   the opcode for the default operation
+ * @param ops    the operations initialized
  */
-survive_dce_t *new_survive_dce(void);
+void firm_set_default_equivalent_node(ir_opcode code, ir_op_ops *ops);
 
 /**
- * Free a Survive DCE environment.
- * NOTE: Survive DCE is considered a bad hack - don't use
+ * Sets the default transform node operation for an ir_op_ops.
+ *
+ * @param code   the opcode for the default operation
+ * @param ops    the operations initialized
  */
-void free_survive_dce(survive_dce_t *sd);
+void firm_set_default_transform_node(ir_opcode code, ir_op_ops *ops);
 
 /**
- * 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.
+ * Set the default node attribute compare operation for an ir_op_ops.
  *
- * @param sd    The Survive DCE environment.
- * @param place The address of the node pointer.
+ * @param code   the opcode for the default operation
+ * @param ops    the operations initialized
  */
-void survive_dce_register_irn(survive_dce_t *sd, ir_node **place);
+void firm_set_default_node_cmp_attr(ir_opcode code, ir_op_ops *ops);
+
 
 #endif