/*
- * 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.
*
* PURPOSE.
*/
-/*
- * Project: libFIRM
- * File name: ir/ir/irphase.c
- * Purpose: Phase information handling using node indexes.
- * Author: Sebastian Hack
- * Modified by:
- * Created:
- * SVN-ID: $Id$
- * Copyright: (c) 1998-2006 Universitaet Karlsruhe
+/**
+ * @file
+ * @brief Phase information handling using node indexes.
+ * @author Sebastian Hack
+ * @version $Id$
+ * @summary
+ * A phase contains a link to private data for each node in an ir graph.
+ * A phase is independent from the globally visible link field of ir nodes.
*/
-
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include "array.h"
+#include "util.h"
#include "irnode_t.h"
+#include "irgraph_t.h"
#include "irphase_t.h"
-ir_phase *phase_init(ir_phase *ph, const char *name, ir_graph *irg, unsigned growth_factor, phase_irn_data_init_t *data_init, void *priv)
+void *phase_irn_init_default(ir_phase *ph, const ir_node *irn, void *old)
+{
+ (void) ph;
+ (void) irn;
+ (void) old;
+ return NULL;
+}
+
+ir_phase *init_irg_phase(ir_graph *irg, ir_phase_id id, size_t size, phase_irn_init *data_init)
+{
+ ir_phase *ph;
+
+ size = MAX(sizeof(*ph), size);
+ assert(id != PHASE_NOT_IRG_MANAGED && id < PHASE_LAST);
+ assert(irg->phases[id] == NULL && "you cannot overwrite another irg managed phase");
+
+ ph = xmalloc(size);
+ memset(ph, 0, size);
+ obstack_init(&ph->obst);
+ ph->id = id;
+ ph->growth_factor = PHASE_DEFAULT_GROWTH;
+ ph->data_init = data_init;
+ ph->irg = irg;
+ ph->n_data_ptr = 0;
+ ph->data_ptr = NULL;
+
+ irg->phases[id] = ph;
+
+ return ph;
+}
+
+void free_irg_phase(ir_graph *irg, ir_phase_id id)
{
- assert(growth_factor >= 256 && "growth factor must greater or equal to 256/256");
- assert(data_init && "You must provide a data constructor");
+ ir_phase *ph = get_irg_phase(irg, id);
+ phase_free(ph);
+ xfree(ph);
+ irg->phases[id] = NULL;
+}
+ir_phase *phase_init(ir_phase *ph, const char *name, ir_graph *irg, unsigned growth_factor, phase_irn_init *data_init, void *priv)
+{
obstack_init(&ph->obst);
- ph->name = name;
+ (void) name;
+ ph->id = PHASE_NOT_IRG_MANAGED;
ph->growth_factor = growth_factor;
ph->data_init = data_init;
ph->irg = irg;
ph->n_data_ptr = 0;
ph->data_ptr = NULL;
ph->priv = priv;
-
return ph;
}
}
}
-ir_node *phase_get_first_node(ir_phase *phase) {
+ir_node *phase_get_first_node(const ir_phase *phase) {
unsigned i;
for (i = 0; i < phase->n_data_ptr; ++i)
return NULL;
}
-ir_node *phase_get_next_node(ir_phase *phase, ir_node *start) {
+ir_node *phase_get_next_node(const ir_phase *phase, ir_node *start) {
unsigned i;
for (i = get_irn_idx(start) + 1; i < phase->n_data_ptr; ++i)