X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firopt_t.h;h=29d3b3b38d96a5e74838ba578ea45a4b1eef04b1;hb=fed1bdc07c9ec7b4d07a9243ad093c9fdd239fbd;hp=35b6fde76ed823008cdf3b23fc018f4f0c45c14c;hpb=9203a8ccc3e43e643841ee88e09a2c419846f530;p=libfirm

diff --git a/ir/ir/iropt_t.h b/ir/ir/iropt_t.h
index 35b6fde76..29d3b3b38 100644
--- a/ir/ir/iropt_t.h
+++ b/ir/ir/iropt_t.h
@@ -23,6 +23,7 @@
 
 # include "pset.h"
 # include "iropt.h"
+# include "tv.h"
 
 ir_node *equivalent_node (ir_node *n);
 
@@ -38,9 +39,22 @@ ir_node *optimize_node (ir_node *n);
 
 ir_node *optimize_in_place_2 (ir_node *n);
 
-/* Calculate a hash value of a node. */
+/** Calculate a hash value of a node. */
 unsigned ir_node_hash (ir_node *node);
 
+/**
+ * Compare function for two nodes in the hash table. Gets two
+ * nodes as parameters.  Returns 0 if the nodes are a cse.
+ */
+int identities_cmp(const void *elt, const void *key);
+
+/**
+ * Return the canonical node computing the same value as n.
+ * 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);
+
 /**
  * Returns the tarval of a Const node or tarval_bad for all other nodes.
  */