X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbepeephole.h;h=34fafab1f865d7ddf677f4191f96ccd0f2f06ca9;hb=a579c4b6631f55e32b995dfe45cd27a917cb8b1f;hp=1e1f268653e0210b10ee3488bcc69ed7f3fb28bb;hpb=1ff0c1f0262a9fe76ba513eeae2c5e514e3bcabe;p=libfirm

diff --git a/ir/be/bepeephole.h b/ir/be/bepeephole.h
index 1e1f26865..34fafab1f 100644
--- a/ir/be/bepeephole.h
+++ b/ir/be/bepeephole.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -23,22 +23,21 @@
  * @author      Matthias Braun
  * @version     $Id$
  */
-
 #ifndef BEPEEPHOLE_H
 #define BEPEEPHOLE_H
 
 #include "beirg.h"
-#include "bearch_t.h"
+#include "bearch.h"
 
 extern ir_node ***register_values;
 
-static INLINE ir_node *be_peephole_get_value(unsigned regclass_idx,
+static inline ir_node *be_peephole_get_value(unsigned regclass_idx,
                                              unsigned register_idx)
 {
 	return register_values[regclass_idx][register_idx];
 }
 
-static INLINE ir_node *be_peephole_get_reg_value(const arch_register_t *reg)
+static inline ir_node *be_peephole_get_reg_value(const arch_register_t *reg)
 {
 	unsigned regclass_idx = arch_register_class_index(arch_register_get_class(reg));
 	unsigned register_idx = arch_register_get_index(reg);
@@ -52,19 +51,36 @@ static INLINE ir_node *be_peephole_get_reg_value(const arch_register_t *reg)
 typedef void (*peephole_opt_func) (ir_node *node);
 
 /**
- * must be called from peephole optimisations when they replace a node,
- * so bepeephole can update it's internal state.
+ * Notify the peephole phase about a newly added node, so it can update its
+ * internal state.  This is not needed for the new node, when
+ * be_peephole_exchange() is used. */
+void be_peephole_new_node(ir_node *nw);
+
+/**
+ * When doing peephole optimisation use this function instead of plain
+ * exchange(), so it can update its internal state. */
+void be_peephole_exchange(ir_node *old, ir_node *nw);
+
+/**
+ * Tries to optimize a beIncSp node with its previous IncSP node.
+ * Must be run from a be_peephole_opt() context.
+ *
+ * @param node  a be_IncSP node
+ *
+ * @return the new IncSP node or node itself
  */
-void be_peephole_node_replaced(const ir_node *old_node, ir_node *new_node);
+ir_node *be_peephole_IncSP_IncSP(ir_node *node);
+
+bool be_has_only_one_user(ir_node *node);
 
 /**
  * Do peephole optimisations. It traverses the schedule of all blocks in
  * backward direction. The register_values variable indicates which (live)
  * values are stored in which register.
  * The generic op handler is called for each node if it exists. That's where
- * backedn specific optimisations should be performed based on the
+ * backend specific optimisations should be performed based on the
  * register-liveness information.
  */
-void be_peephole_opt(be_irg_t *birg);
+void be_peephole_opt(ir_graph *irg);
 
 #endif