From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Wed, 27 Oct 2004 08:47:45 +0000 (+0000)
Subject: Added operation for reassociation
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=16c77795a1bfdad4cbf28de90756af2a45f29d3b;p=libfirm

Added operation for reassociation

[r4218]
---

diff --git a/ir/ir/irop_t.h b/ir/ir/irop_t.h
index b5e5c702a..92f040227 100644
--- a/ir/ir/irop_t.h
+++ b/ir/ir/irop_t.h
@@ -79,6 +79,13 @@ 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 type of an ir_op. */
 struct ir_op {
   opcode code;            /**< the unique opcode of the op */
@@ -94,6 +101,7 @@ 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 */
 };
 
 /**