-/**
- * @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))
extern ir_op *op_be_Barrier;
typedef enum {
- beo_NoBeOp = 0,
+ beo_NoBeOp = -1,
beo_Spill,
beo_Reload,
beo_Perm,
* 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.
*/
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
*/
} 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);
/** 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.
*/
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 */
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