/*
- * Project: libFIRM
- * File name: ir/ir/irphase_t.c
- * Purpose: Phase information handling using node indexes.
- * Author: Sebastian Hack
- * Modified by:
- * Created:
- * CVS-ID: $Id$
- * Copyright: (c) 1998-2006 Universitaet Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ * Copyright (C) 1995-2008 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.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * 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 _FIRM_IR_PHASE_T_H
-#define _FIRM_IR_PHASE_T_H
+/**
+ * @file
+ * @brief Phase information handling using node indexes.
+ * @author Sebastian Hack
+ * @version $Id$
+ */
+#ifndef FIRM_IR_PHASE_T_H
+#define FIRM_IR_PHASE_T_H
-#include "obstack.h"
+#include "firm_types.h"
+#include "obst.h"
#include "irgraph_t.h"
#include "irtools.h"
#include "irphase.h"
-#include "irtools.h"
-
-typedef struct {
- unsigned node_slots;
- unsigned node_slots_used;
- unsigned node_data_bytes;
- unsigned node_map_bytes;
- unsigned overall_bytes;
-} phase_stat_t;
/**
- * Phase statistics.
+ * A phase object.
*/
-phase_stat_t *phase_stat(const phase_t *phase, phase_stat_t *stat);
-
-typedef void *(phase_irn_data_init_t)(phase_t *phase, ir_node *irn, void *old);
+struct ir_phase {
+ void **data_ptr; /**< Map node indexes to irn data on the obstack. */
+ ir_graph *irg; /**< The irg this phase will we applied to. */
+ phase_irn_init *data_init; /**< A callback that is called to initialize newly created node data. */
+ size_t n_data_ptr; /**< The length of the data_ptr array. */
+ struct obstack obst; /**< The obstack where the irn phase data will be stored on. */
+ void *priv; /**< Some pointer private to the user of the phase. */
+};
/**
- * The default grow factor.
- * The node => data map does not speculatively allocate more slots.
+ * For statistics: A type containing statistic data of a phase object.
*/
-#define PHASE_DEFAULT_GROWTH (256)
+typedef struct {
+ unsigned node_slots; /**< The number of allocated node slots. */
+ unsigned node_slots_used; /**< The number of used node slots, i.e. nodes that have node data. */
+ unsigned node_map_bytes; /**< Number of used bytes for the node map. */
+ unsigned overall_bytes; /**< Overall number of used bytes for the phase. */
+} phase_stat_t;
/**
- * A phase object.
+ * Collect Phase statistics.
+ *
+ * @param phase The phase.
+ * @param stat Will be filled with the statistical data.
*/
-struct _phase_t {
- struct obstack obst; /**< The obstack where the irn phase data will be stored on. */
- const char *name; /**< The name of the phase. */
- ir_graph *irg; /**< The irg this phase will we applied to. */
- unsigned growth_factor; /**< factor to leave room for add. nodes. 256 means 1.0. */
- void *priv; /**< Some pointer private to the user of the phase. */
- size_t n_data_ptr; /**< The length of the data_ptr array. */
- void **data_ptr; /**< Map node indexes to irn data on the obstack. */
- phase_irn_data_init_t *data_init; /**< A callback that is called to initialize newly created node data. */
-};
+phase_stat_t *phase_stat(const ir_phase *phase, phase_stat_t *stat);
+
/**
- * Initialize a phase object.
- * @param name The name of the phase.
- * @param irg The graph the phase will run on.
- * @param growth_factor A factor denoting how many node slots will be additionally allocated,
- * if the node => data is full. 256 means 1.0.
- * @param irn_data_init A callback that is called to initialize newly created node data.
- * @param priv Some private pointer which is kept in the phase and can be retrieved with phase_get_private().
- * @return A new phase object.
+ * Re-initialize the irn data for the given node.
+ *
+ * @param phase The phase.
+ * @param irn The irn.
*/
-phase_t *phase_init(phase_t *ph, const char *name, ir_graph *irg, unsigned growth_factor, phase_irn_data_init_t *data_init);
+static inline void phase_reinit_single_irn_data(ir_phase *phase, ir_node *irn)
+{
+ int idx;
+
+ if (! phase->data_init)
+ return;
+
+ idx = get_irn_idx(irn);
+ if (phase->data_ptr[idx])
+ phase->data_init(phase, irn, phase->data_ptr[idx]);
+}
/**
- * Free the phase and all node data associated with it.
- * @param phase The phase.
+ * Returns the first node of the phase having some data assigned.
+ *
+ * @param phase The phase.
+ *
+ * @return The first irn having some data assigned, NULL otherwise
*/
-void phase_free(phase_t *phase);
+ir_node *phase_get_first_node(const ir_phase *phase);
/**
- * Re-initialize the irn data for all nodes in the node => data map using the given callback.
- * @param phase The phase.
- * @note This function will pass NULL to the init function passed to phase_new().
+ * Returns the next node after @p start having some data assigned.
+ *
+ * @param phase The phase.
+ * @param start The node to start from
+ *
+ * @return The next node after start having some data assigned, NULL otherwise
*/
-void phase_reinit_irn_data(phase_t *phase);
+ir_node *phase_get_next_node(const ir_phase *phase, ir_node *start);
/**
- * Get the name of the phase.
+ * Convenience macro to iterate over all nodes of a phase
+ * having some data assigned.
+ *
+ * @param phase The phase.
+ * @param irn A local variable that will hold the current node inside the loop.
*/
-#define phase_get_name(ph) ((ph)->name)
+#define foreach_phase_irn(phase, irn) \
+ for (irn = phase_get_first_node(phase); irn; irn = phase_get_next_node(phase, irn))
/**
* Get the irg the phase runs on.
+ *
+ * @param phase The phase.
*/
-#define phase_get_irg(ph) ((ph)->irg)
+static inline ir_graph *phase_get_irg(const ir_phase *phase)
+{
+ return phase->irg;
+}
/**
* Get private data pointer as passed on creating the phase.
+ *
+ * @param phase The phase.
*/
-#define phase_get_private(ph) ((ph)->priv)
+static inline void *phase_get_private(const ir_phase *phase)
+{
+ return phase->priv;
+}
/**
- * Allocate memory in the phase's memory pool.
+ * Attach pointer with private data to phase
*/
-#define phase_alloc(ph, size) obstack_alloc(phase_obst(ph), (size))
+static inline void phase_set_private(ir_phase *phase, void *priv)
+{
+ phase->priv = priv;
+}
-/**
- * Get the obstack of the phase.
- */
-#define phase_obst(ph) (&(ph)->obst)
+static inline void *phase_alloc(ir_phase *phase, size_t size)
+{
+ return obstack_alloc(&phase->obst, size);
+}
/**
- * Get the phase data for an irn.
- * @param ph The phase.
- * @param irn The irn to get data for.
- * @return A pointer to the data or NULL if the irn has no phase data.
+ * Get the obstack of a phase.
+ *
+ * @param phase The phase.
*/
-#define phase_get_irn_data(ph, irn) _phase_get_irn_data((ph), (irn))
+static inline struct obstack *phase_obst(ir_phase *phase)
+{
+ return &phase->obst;
+}
/**
- * Get or set phase data for an irn.
- * @param ph The phase.
- * @param irn The irn to get (or set) node data for.
- * @return A (non-NULL) pointer to phase data for the irn. Either existent one or newly allocated one.
+ * Get the phase node data for an irn.
+ *
+ * @param phase The phase.
+ * @param irn The irn to get data for.
+ *
+ * @return A pointer to the node data or NULL if the irn has no phase data allocated yet.
*/
-#define phase_get_or_set_irn_data(ph, irn) _phase_get_or_set_irn_data((ph), (irn))
+static inline void *phase_get_irn_data(const ir_phase *ph, const ir_node *irn)
+{
+ unsigned idx = get_irn_idx(irn);
+ return idx < ph->n_data_ptr ? ph->data_ptr[idx] : NULL;
+}
/**
* This is private and just here for performance reasons.
*/
-static INLINE void _private_phase_enlarge(phase_t *phase, unsigned max_idx)
+static inline void private_phase_enlarge(ir_phase *phase, unsigned max_idx)
{
unsigned last_irg_idx = get_irg_last_idx(phase->irg);
size_t old_cap = phase->n_data_ptr;
/* make the maximum index at least as big as the largest index in the graph. */
max_idx = MAX(max_idx, last_irg_idx);
- new_cap = (size_t) (max_idx * phase->growth_factor / 256);
+ new_cap = (size_t) (max_idx + 256);
- phase->data_ptr = (void **)xrealloc(phase->data_ptr, new_cap * sizeof(phase->data_ptr[0]));
+ phase->data_ptr = XREALLOC(phase->data_ptr, void*, new_cap);
/* initialize the newly allocated memory. */
memset(phase->data_ptr + old_cap, 0, (new_cap - old_cap) * sizeof(phase->data_ptr[0]));
phase->n_data_ptr = new_cap;
}
-/**
+/*
* This is private and only here for performance reasons.
*/
-#define _private_phase_assure_capacity(ph, max_idx) ((max_idx) >= (ph)->n_data_ptr ? (_private_phase_enlarge((ph), (max_idx)), 1) : 1)
-
-static INLINE void *_phase_get_irn_data(phase_t *ph, const ir_node *irn)
+static inline void private_phase_assure_capacity(ir_phase *ph, unsigned max_idx)
{
- unsigned idx = get_irn_idx(irn);
- return idx < ph->n_data_ptr ? ph->data_ptr[idx] : NULL;
+ if (max_idx >= ph->n_data_ptr)
+ private_phase_enlarge(ph, max_idx);
}
-static INLINE void *_phase_get_or_set_irn_data(phase_t *ph, ir_node *irn)
+
+/**
+ * Get or set phase data for an irn.
+ *
+ * @param phase The phase.
+ * @param irn The irn to get (or set) node data for.
+ *
+ * @return A (non-NULL) pointer to phase data for the irn. Either existent one or newly allocated one.
+ */
+static inline void *phase_get_or_set_irn_data(ir_phase *ph, const ir_node *irn)
{
unsigned idx = get_irn_idx(irn);
void *res;
/* Assure that there's a sufficient amount of slots. */
- _private_phase_assure_capacity(ph, idx);
+ private_phase_assure_capacity(ph, idx + 1);
res = ph->data_ptr[idx];
/* If there has no irn data allocated yet, do that now. */
if(!res) {
- phase_irn_data_init_t *data_init = ph->data_init;
+ phase_irn_init *data_init = ph->data_init;
/* call the node data structure allocator/constructor. */
res = ph->data_ptr[idx] = data_init(ph, irn, NULL);
return res;
}
+/**
+ * Set the node data for an irn.
+ *
+ * @param phase The phase.
+ * @param irn The node.
+ * @param data The node data.
+ *
+ * @return The old data or NULL if there was none.
+ */
+static inline void *phase_set_irn_data(ir_phase *ph, const ir_node *irn,
+ void *data)
+{
+ unsigned idx = get_irn_idx(irn);
+ void *res;
+
+ /* Assure that there's a sufficient amount of slots. */
+ private_phase_assure_capacity(ph, idx + 1);
+
+ res = ph->data_ptr[idx];
+ ph->data_ptr[idx] = data;
+
+ return res;
+}
+
+
+/**
+ * convenience function that returns phase information attached to a node
+ */
+static inline void *get_irn_phase_info(const ir_node *irn, ir_phase_id id)
+{
+ const ir_graph *irg = get_irn_irg(irn);
+ const ir_phase *ph = irg_get_phase(irg, id);
+ return phase_get_irn_data(ph, irn);
+}
+
+/**
+ * Get or set information a phase holds about a node.
+ * If the given phase does not hold information of the node,
+ * the information structure will be created, initialized (see the data_init function of ir_phase), and returned.
+ * @param irn The node.
+ * @param id The ID of the phase.
+ */
+static inline void *get_or_set_irn_phase_info(const ir_node *irn, ir_phase_id id)
+{
+ const ir_graph *irg = get_irn_irg(irn);
+ ir_phase *ph = irg_get_phase(irg, id);
+ return phase_get_or_set_irn_data(ph, irn);
+}
+
+static inline void *set_irn_phase_info(const ir_node *irn, ir_phase_id id, void *data)
+{
+ const ir_graph *irg = get_irn_irg(irn);
+ ir_phase *ph = irg_get_phase(irg, id);
+ return phase_set_irn_data(ph, irn, data);
+}
+
+
+
-#endif /* _FIRM_IR_PHASE_T_H */
+#endif
projects / libfirm / blobdiff