X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbenode_t.h;h=ae58eb0d45721d9d7ccd7c5254576ec5493f4dbe;hb=e46543287024a67217991be317e9692984939659;hp=79bd1c77a025607d5a953b83b350ccd503636677;hpb=df28a86e804e82af497fb5168f2970cd7fc575b2;p=libfirm

diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h
index 79bd1c77a..ae58eb0d4 100644
--- a/ir/be/benode_t.h
+++ b/ir/be/benode_t.h
@@ -1,26 +1,39 @@
-/**
- * @file   benode_t.h
- * @date   17.05.2005
- * @author Sebastian Hack
+/*
+ * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
  *
- * Backend node support.
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
  *
- * Copyright (C) 2005 Universitaet Karlsruhe
- * Released under the GPL
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
  */
 
-#ifndef _BENODE_T_H
-#define _BENODE_T_H
-
-#include "firm_config.h"
+/**
+ * @file
+ * @brief       Backend node support for generic backend nodes.
+ * @author      Sebastian Hack
+ * @date        17.05.2005
+ * @version     $Id$
+ *
+ * Backend node support for generic backend nodes.
+ * This file provides Perm, Copy, Spill and Reload nodes.
+ */
+#ifndef FIRM_BE_BENODE_T_H
+#define FIRM_BE_BENODE_T_H
 
 #include <limits.h>
 
-#include "irmode.h"
+#include "firm_types.h"
 #include "irnode.h"
-#include "entity_t.h"
-
-#include "be_t.h"
 #include "bearch.h"
 
 #define BE_OUT_POS(p) (-((p) + 1))
@@ -49,7 +62,7 @@ extern ir_op *op_be_FrameStore;
 extern ir_op *op_be_Barrier;
 
 typedef enum {
-	beo_NoBeOp = 0,
+	beo_NoBeOp = -1,
 	beo_Spill,
 	beo_Reload,
 	beo_Perm,
@@ -144,6 +157,20 @@ void be_set_Copy_op(ir_node *cpy, ir_node *op);
  * Make a new Perm node.
  */
 ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]);
+
+/**
+ * Reduce a Perm.
+ * Basically, we provide a map to remap the Perm's arguments. If an entry in the
+ * map is -1, the argument gets deleted.
+ * This function takes care, that the register data and the input array reflects
+ * the changes described by the map.
+ * This is needed by the Perm optimization/movement in belower.c, see push_through_perm().
+ * @param perm     The perm node.
+ * @param new_size The new number of arguments (must be smaller or equal to the current one).
+ * @param map      A map assigning each operand a new index (or -1 to indicate deletion).
+ */
+void be_Perm_reduce(ir_node *perm, int new_size, int *map);
+
 /**
  * Create a new MemPerm node.
  */
@@ -152,12 +179,42 @@ ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *b
 
 void be_Keep_add_node(ir_node *keep, const arch_register_class_t *cls, ir_node *node);
 
+/**
+ * Position numbers for the be_FrameLoad inputs
+ */
+enum {
+	be_pos_FrameLoad_mem = 0,
+	be_pos_FrameLoad_ptr = 1
+};
+
 ir_node *be_new_FrameLoad(const arch_register_class_t *cls_frame, const arch_register_class_t *cls_data,
 						  ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_entity *ent);
+
+/**
+ * Position numbers for the be_FrameStore inputs
+ */
+enum {
+	be_pos_FrameStore_mem = 0,
+	be_pos_FrameStore_ptr = 1,
+	be_pos_FrameStore_val = 2
+};
+
 ir_node *be_new_FrameStore(const arch_register_class_t *cls_frame, const arch_register_class_t *cls_data,
 						   ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_node *data, ir_entity *ent);
+
+/**
+ * Position numbers for the be_FrameAddr inputs
+ */
+enum {
+	be_pos_FrameAddr_ptr = 0
+};
+
+/** Create a new FrameAddr node. */
 ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, ir_entity *ent);
 
+/** Return the frame input of a FrameAddr node. */
+ir_node *be_get_FrameAddr_frame(ir_node *node);
+
 /**
  * Position numbers for the be_AddSP inputs
  */
@@ -277,7 +334,18 @@ typedef enum {
 } pn_be_Call;
 
 /**
- * Construct a new be_Call
+ * Construct a new be_Call.
+ *
+ * @param dbg      debug info
+ * @param irg      the graph where the call is placed
+ * @param bl       the block where the call is placed
+ * @param mem      the memory input of the call
+ * @param sp       the stack pointer input of the call
+ * @param ptr      the address of the called function, if immediate call set to sp
+ * @param n_outs   the number of outcoming values from this call
+ * @param n        the number of (register) inputs of this call
+ * @param in       the (register) inputs of this call
+ * @param call_tp  the call type of this call
  */
 ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_node *ptr,
                      int n_outs, int n, ir_node *in[], ir_type *call_tp);
@@ -307,6 +375,13 @@ int be_Return_get_n_rets(ir_node *ret);
 /** appends a node to the return node, returns the position of the node */
 int be_Return_append_node(ir_node *ret, ir_node *node);
 
+/**
+ * StackParam input positions
+ */
+enum {
+	be_pos_StackParam_ptr = 0
+};
+
 /**
  * Construct a new Stack Parameter node.
  */
@@ -478,9 +553,15 @@ void be_phi_handler_reset(arch_irn_handler_t *handler);
 void be_set_phi_reg_req(const arch_env_t *arch_env, ir_node *phi,
                         const arch_register_req_t *req);
 
+/*
+ * Set flags for a phi node
+ */
+void be_set_phi_flags(const arch_env_t *arch_env, ir_node *phi,
+                      arch_irn_flags_t flags);
+
 /**
  * irn handler for common be nodes.
  */
 extern const arch_irn_handler_t be_node_irn_handler;
 
-#endif /* _BENODE_T_H */
+#endif /* FIRM_BE_BENODE_T_H */