X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbepeephole.h;h=af02f347865c91b4dcaeabbec9d46086691ffa79;hb=9e9c84725fd3fcfbcb819d6d6b88f8da91f121a9;hp=86fe44f129673499b425ab23d5a4f3a883f72aee;hpb=b70b1794d3fe3c289fd988aacbb567761186cd16;p=libfirm

diff --git a/ir/be/bepeephole.h b/ir/be/bepeephole.h
index 86fe44f12..af02f3478 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);
@@ -47,17 +46,37 @@ static INLINE ir_node *be_peephole_get_reg_value(const arch_register_t *reg)
 }
 
 /**
- * Datatype of the generic op handler for optimisation. If it exchanged node
- * with something else, then it must return the new node, otherwise NULL.
+ * Datatype of the generic op handler for optimisation.
+ */
+typedef void (*peephole_opt_func) (ir_node *node);
+
+/**
+ * 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 it's 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
  */
-typedef ir_node*(*peephole_opt_func) (ir_node *node);
+ir_node *be_peephole_IncSP_IncSP(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);