X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firop_t.h;h=df27ec690980ec1b6b3289b2470d5ce600d20395;hb=265829494264529c53e5180a56cc9f1196346385;hp=b5e5c702a34694ead2d7a08bd5f88c777502308c;hpb=ae298d4a4c367832cdfaac98464ce341f30f6f4f;p=libfirm

diff --git a/ir/ir/irop_t.h b/ir/ir/irop_t.h
index b5e5c702a..df27ec690 100644
--- a/ir/ir/irop_t.h
+++ b/ir/ir/irop_t.h
@@ -79,6 +79,19 @@ typedef ir_node *(*transform_node_func)(ir_node *n);
  */
 typedef int (*node_cmp_attr_func)(ir_node *a, ir_node *b);
 
+/**
+ * The reassociation operation.
+ * Called from a walker.  Returns non-zero if
+ * a reassociation rule was applied.
+ */
+typedef int (*reassociate_func)(ir_node *n);
+
+/**
+ * The copy attribute operation.
+ * Copy the node attributes from a 'old' node to a 'new' one.
+ */
+typedef void (*copy_attr_func)(const ir_node *old_node, ir_node *new_node);
+
 /** The type of an ir_op. */
 struct ir_op {
   opcode code;            /**< the unique opcode of the op */
@@ -94,6 +107,8 @@ struct ir_op {
   equivalent_node_func  equivalent_node;	/**< optimizes the node by returning an equivalent one. */
   transform_node_func   transform_node;		/**< optimizes the node by transforming it. */
   node_cmp_attr_func    node_cmp_attr;		/**< compares two node attributes. */
+  reassociate_func      reassociate;            /**< reassociate a tree */
+  copy_attr_func        copy_attr;              /**< copy node attributes */
 };
 
 /**
@@ -124,6 +139,12 @@ void init_op(void);
 /** Free memory used by irop module. */
 void finish_op(void);
 
+/**
+ * Copies simply all attributes stored in the old node to the new node.
+ * Assumes both have the same opcode and sufficient size.
+ */
+void default_copy_attr(const ir_node *old_node, ir_node *new_node);
+
 /** Returns the attribute size of nodes of this opcode.
    @note Use not encouraged, internal feature. */
 static INLINE int get_op_attr_size (const ir_op *op) {