X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firphase_t.h;h=02453a1ba9dfc96d477fbfc57119f1905ddac33c;hb=6642d975ccbd1984001893eba54b5e0a0e3104c6;hp=581627ac91659f24aaf3d1bfce1d58c54cac2cf3;hpb=25ea4567ce42388f59fdc45e11f278290fdd1353;p=libfirm diff --git a/ir/ir/irphase_t.h b/ir/ir/irphase_t.h index 581627ac9..02453a1ba 100644 --- a/ir/ir/irphase_t.h +++ b/ir/ir/irphase_t.h @@ -6,7 +6,7 @@ * 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. */ @@ -15,6 +15,7 @@ #include "obstack.h" #include "irgraph_t.h" +#include "irtools.h" #include "irphase.h" #include "irtools.h" @@ -31,7 +32,7 @@ typedef struct { */ 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. @@ -48,7 +49,6 @@ struct _phase_t { 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. */ @@ -58,14 +58,15 @@ struct _phase_t { * 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. @@ -76,10 +77,45 @@ void phase_free(phase_t *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(). */ 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. */ @@ -121,6 +157,31 @@ void phase_reinit_irn_data(phase_t *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. */ @@ -134,7 +195,7 @@ static INLINE void _private_phase_enlarge(phase_t *phase, unsigned max_idx) 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])); @@ -146,13 +207,28 @@ static INLINE void _private_phase_enlarge(phase_t *phase, unsigned max_idx) */ #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; @@ -165,14 +241,12 @@ static INLINE void *_phase_get_or_set_irn_data(phase_t *ph, const ir_node *irn) /* 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 */