* Modified by:
* Created:
* CVS-ID: $Id$
- * Copyright: (c) 1998-2006 Universitaet Karlsruhe
+ * Copyright: (c) 1998-2007 Universitaet Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
#include "obstack.h"
#include "irgraph_t.h"
+#include "irtools.h"
#include "irphase.h"
#include "irtools.h"
*/
phase_stat_t *phase_stat(const phase_t *phase, phase_stat_t *stat);
-typedef void (phase_irn_data_init_t)(const phase_t *phase, const ir_node *irn, void *data);
+typedef void *(phase_irn_data_init_t)(phase_t *phase, ir_node *irn, void *old);
/**
* The default grow factor.
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 data_size; /**< The amount of bytes which shall be allocated for each irn. */
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. */
* Initialize a phase object.
* @param name The name of the phase.
* @param irg The graph the phase will run on.
- * @param data_size The amount of extra storage in bytes that should be allocated for each node.
* @param growth_factor A factor denoting how many node slots will be additionally allocated,
- * if the node => data is full. 256 means 1.0.
+ * if the node => data is full. The factor is given in units of 1/256, so
+ * 256 means 1.0.
* @param irn_data_init A callback that is called to initialize newly created node data.
+ * Must be non-null.
* @param priv Some private pointer which is kept in the phase and can be retrieved with phase_get_private().
* @return A new phase object.
*/
-phase_t *phase_init(phase_t *ph, const char *name, ir_graph *irg, size_t data_size, unsigned growth_factor, phase_irn_data_init_t *data_init);
+phase_t *phase_init(phase_t *ph, const char *name, ir_graph *irg, unsigned growth_factor, phase_irn_data_init_t *data_init);
/**
* Free the phase and all node data associated with it.
/**
* 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().
*/
void phase_reinit_irn_data(phase_t *phase);
+/**
+ * Re-initialize the irn data for all nodes in the given block.
+ * @param phase The phase.
+ * @param block The block.
+ */
+void phase_reinit_block_irn_data(phase_t *phase, ir_node *block);
+
+/**
+ * Re-initialize the irn data for the given node.
+ * @param phase The phase.
+ * @param irn The irn.
+ */
+#define phase_reinit_single_irn_data(phase, irn) _phase_reinit_single_irn_data((phase), (irn))
+
+/**
+ * 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
+ */
+ir_node *phase_get_first_node(phase_t *phase);
+
+/**
+ * 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
+ */
+ir_node *phase_get_next_node(phase_t *phase, ir_node *start);
+
+/**
+ * Convenience macro to iterate over all nodes of a phase
+ * having some data assigned.
+ */
+#define foreach_phase_irn(phase, irn) \
+ for (irn = phase_get_first_node(phase); irn; irn = phase_get_next_node(phase, irn))
+
/**
* Get the name of the phase.
*/
*/
#define phase_get_or_set_irn_data(ph, irn) _phase_get_or_set_irn_data((ph), (irn))
+/**
+ * Set the data for an irn.
+ * @param ph The phase.
+ * @param irn The node.
+ * @param data The data.
+ * @return The old data or NULL if there was none.
+ */
+#define phase_set_irn_data(ph, irn, data) _phase_set_irn_data((ph), (irn), (data))
+
+/**
+ * This is private and only here for performance reasons.
+ */
+static INLINE void _phase_reinit_single_irn_data(phase_t *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]);
+}
+
+
/**
* This is private and just here for performance reasons.
*/
max_idx = MAX(max_idx, last_irg_idx);
new_cap = (size_t) (max_idx * phase->growth_factor / 256);
- phase->data_ptr = (void **) realloc(phase->data_ptr, new_cap * sizeof(phase->data_ptr[0]));
+ phase->data_ptr = (void **)xrealloc(phase->data_ptr, new_cap * sizeof(phase->data_ptr[0]));
/* initialize the newly allocated memory. */
memset(phase->data_ptr + old_cap, 0, (new_cap - old_cap) * sizeof(phase->data_ptr[0]));
*/
#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 *_phase_get_irn_data(const phase_t *ph, const ir_node *irn)
{
unsigned idx = get_irn_idx(irn);
return idx < ph->n_data_ptr ? ph->data_ptr[idx] : NULL;
}
-static INLINE void *_phase_get_or_set_irn_data(phase_t *ph, const ir_node *irn)
+static INLINE void *_phase_set_irn_data(phase_t *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);
+
+ res = ph->data_ptr[idx];
+ ph->data_ptr[idx] = data;
+
+ return res;
+}
+
+
+static INLINE void *_phase_get_or_set_irn_data(phase_t *ph, ir_node *irn)
{
unsigned idx = get_irn_idx(irn);
void *res;
/* If there has no irn data allocated yet, do that now. */
if(!res) {
phase_irn_data_init_t *data_init = ph->data_init;
- ph->data_ptr[idx] = res = phase_alloc(ph, ph->data_size);
- /* Call the irn data callback, if there is one. */
- if(data_init)
- data_init(ph, irn, res);
+ /* call the node data structure allocator/constructor. */
+ res = ph->data_ptr[idx] = data_init(ph, irn, NULL);
+
}
return res;
}
-
#endif /* _FIRM_IR_PHASE_T_H */
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