X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fana2%2Fpto_init.c;h=781cfd8d9adcf2daad21399ba0b3d9ddc86b87a2;hb=6df6ae7f6b5d09f8fd599eba67aaba289b12c19c;hp=331e036a2c7447d4ee94a727b2b5e234608f2113;hpb=3da9268a2299ca213f20b558ab439dbda4841a02;p=libfirm diff --git a/ir/ana2/pto_init.c b/ir/ana2/pto_init.c index 331e036a2..781cfd8d9 100644 --- a/ir/ana2/pto_init.c +++ b/ir/ana2/pto_init.c @@ -12,23 +12,40 @@ Licence: This file is protected by the GPL - GNU GENERAL PUBLIC LICENSE. */ -# ifdef HAVE_CONFIG_H -# include -# endif +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif /* pto_init: Initialisation Functions */ +# include +# include +#ifdef HAVE_STRING_H +# include +#endif +#ifdef HAVE_STRINGS_H +# include +#endif + +# include "pto.h" # include "pto_init.h" # include "pto_debug.h" # include "pto_comp.h" +# include "pto_name.h" +# include "pto_util.h" # include "typewalk.h" # include "irgwalk.h" +# include "tv.h" # include "xmalloc.h" +# include "gnu_ext.h" + /* Local Defines: */ +# define obstack_chunk_alloc xmalloc +# define obstack_chunk_free free /* Local Data Types: */ typedef struct init_env_str @@ -36,48 +53,103 @@ typedef struct init_env_str int n_ctxs; } init_env_t; +typedef struct reset_env_str +{ + int ctx_idx; +} reset_env_t; + /* Local Variables: */ +extern struct obstack *qset_obst; /* from pto_name */ + +static struct obstack *pto_obst = NULL; /* all pto_t's go onto this one */ /* Local Prototypes: */ /* =================================================== Local Implementation: =================================================== */ -/* Allocate a new pto */ +/** Allocate a new pto */ static pto_t *new_pto (ir_node *node) { - /* dummy implementation for fake_pto */ - pto_t *pto = xmalloc (sizeof (pto_t)); + pto_t *pto = obstack_alloc (pto_obst, sizeof (pto_t)); + pto->values = qset_new (N_INITIAL_OJBS, qset_obst); return (pto); } -/* Allocate a new alloc_pto */ -static alloc_pto_t *new_alloc_pto (ir_node *node, int n_ctxs) +/** Allocate a new alloc_pto */ +static alloc_pto_t *new_alloc_pto (ir_node *alloc, int n_ctxs) { int i; - /* dummy implementation for fake_pto */ - alloc_pto_t *alloc_pto = xmalloc (sizeof (alloc_pto_t)); + alloc_pto_t *alloc_pto = obstack_alloc (pto_obst, sizeof (alloc_pto_t)); + type *tp; + + assert (op_Alloc == get_irn_op(alloc)); + + tp = get_Alloc_type (alloc); - alloc_pto->ptos = (pto_t**) xmalloc (n_ctxs * sizeof (pto_t*)); + alloc_pto->ptos = (pto_t**) obstack_alloc (pto_obst, n_ctxs * sizeof (pto_t*)); for (i = 0; i < n_ctxs; i ++) { - alloc_pto->ptos [i] = new_pto (node); + desc_t *desc = new_name (tp, alloc, i); + alloc_pto->ptos [i] = new_pto (alloc); + qset_insert (alloc_pto->ptos [i]->values, desc); } return (alloc_pto); } +/** Allocate a new pto for a symconst */ +static pto_t* new_symconst_pto (ir_node *symconst) +{ + pto_t *pto; + entity *ent; + desc_t *desc = NULL; + + assert (op_SymConst == get_irn_op(symconst)); + + pto = new_pto (symconst); + ent = get_SymConst_entity (symconst); + + /* + const char *ent_name = (char*) get_entity_name (ent); + const char *own_name = (char*) get_type_name (get_entity_owner (ent)); + HERE3 ("start", own_name, ent_name); + */ + /* Ok, so if the symconst has a pointer-to-mumble, it's some address + calculation, but if it's the mumble itself, it's just the same, + except it's presumably a constant of mumble. In any case, we need to + branch on this. "How's that for object fucking oriented? --jwz" */ + if (is_Pointer_type (get_entity_type (ent))) { + desc = new_ent_name (ent); + } else if (is_Class_type (get_entity_type (ent))) { + desc = new_name (get_entity_type (ent), symconst, -1); + } else { + fprintf (stderr, "%s: not handled: %s[%li] (\"%s\")\n", + __FUNCTION__, + get_op_name (get_irn_op (symconst)), + get_irn_node_nr (symconst), + get_entity_name (ent)); + assert (0 && "something not handled"); + } + + qset_insert (pto->values, desc); + + /* HERE3 ("end", own_name, ent_name); */ + + return (pto); +} /* Helper to pto_init --- clear the link fields of class types */ -static void clear_type_link (type_or_ent *thing, void *__unused) +static void clear_type_link (type_or_ent *thing, void *_unused) { if (is_type (thing)) { type *tp = (type*) thing; - if (is_class_type (tp)) { + if (is_Class_type (tp)) { DBGPRINT (1, (stdout, "%s (\"%s\")\n", - __FUNCTION__, get_type_name (tp))); + __FUNCTION__, + get_type_name (tp))); set_type_link (tp, NULL); } @@ -85,115 +157,340 @@ static void clear_type_link (type_or_ent *thing, void *__unused) entity *ent = (entity*) thing; DBGPRINT (1, (stdout, "%s (\"%s\")\n", - __FUNCTION__, get_entity_name (ent))); + __FUNCTION__, + get_entity_name (ent))); set_entity_link (ent, NULL); } } -/* Helper to pto_init_graph --- clear the links of the given node */ -static void clear_node_link (ir_node *node, void *__unused) +/** Helper to pto_init_graph --- clear the links of the given node */ +static void clear_node_link (ir_node *node, void *_unused) { set_irn_link (node, NULL); } -/* Helper to pto_init_graph --- clear the links of all nodes */ +/** Helper to pto_init_graph --- clear the links of all nodes */ static void clear_graph_links (ir_graph *graph) { irg_walk_graph (graph, clear_node_link, NULL, NULL); } -/* Temporary fix until we get 'real' ptos: Allocate some dummy for pto */ -static void fake_pto (ir_node *node, void *env) +/** Reset ALL the pto values for a new pass */ +static void reset_node_pto (ir_node *node, void *env) { - init_env_t *init_env = (init_env_t*) env; - int n_ctxs = init_env->n_ctxs; + reset_env_t *reset_env = (reset_env_t*) env; + int ctx_idx = reset_env->ctx_idx; + opcode op = get_irn_opcode (node); - const opcode op = get_irn_opcode (node); + /* HERE ("start"); */ switch (op) { case (iro_Load): - case (iro_SymConst): - case (iro_Const): case (iro_Call): + case (iro_Block): /* END BLOCK only */ case (iro_Phi): { + /* allocate 'empty' pto values */ pto_t *pto = new_pto (node); set_node_pto (node, pto); + } break; + + case (iro_Alloc): { + /* set alloc to 'right' current pto */ + alloc_pto_t *alloc_pto = (alloc_pto_t*) get_irn_link (node); + alloc_pto->curr_pto = alloc_pto->ptos [ctx_idx]; + + DBGPRINT (1, (stdout, "%s: setting pto of \"%s[%li]\" for ctx %i\n", + __FUNCTION__, + OPNAME (node), + OPNUM (node), + ctx_idx)); + + assert (alloc_pto->curr_pto); + } break; + case (iro_Const): + case (iro_SymConst): { + /* nothing, leave as-is */ } break; + default: { + /* basically, nothing */ + DBGPRINT (2, (stdout, "%s: resetting pto of \"%s[%li]\"\n", + __FUNCTION__, + OPNAME (node), + OPNUM (node))); + set_node_pto (node, NULL); + } break; + } + + /* HERE ("end"); */ +} + +/** Initialise primary name sources */ +static void init_pto (ir_node *node, void *env) +{ + init_env_t *init_env = (init_env_t*) env; + int n_ctxs = init_env->n_ctxs; + + opcode op = get_irn_opcode (node); + + switch (op) { + case (iro_SymConst): { + if (mode_is_reference (get_irn_mode (node))) { + entity *ent = get_SymConst_entity (node); + type *tp = get_entity_type (ent); + if (is_Class_type (tp) || is_Pointer_type (tp)) { + pto_t *symconst_pto = new_symconst_pto (node); + set_node_pto (node, symconst_pto); + + /* debugging only */ + DBGPRINT (1, (stdout, "%s: new name \"%s\" for \"%s[%li]\"\n", + __FUNCTION__, + get_entity_name (ent), + OPNAME (node), + OPNUM (node))); + } + } + } break; + case (iro_Alloc): { alloc_pto_t *alloc_pto = new_alloc_pto (node, n_ctxs); + type *tp; + set_alloc_pto (node, alloc_pto); - } break; - default: - HERE ("no pto"); + tp = get_Alloc_type (node); /* debugging only */ + DBGPRINT (1, (stdout, "%s: %i names \"%s\" for \"%s[%li]\"\n", + __FUNCTION__, + n_ctxs, + get_type_name (tp), + OPNAME (node), + OPNUM (node))); + } break; + + case (iro_Const): { + tarval *tv = get_Const_tarval (node); + + /* only need 'NULL' pointer constants */ + if (mode_P == get_tarval_mode (tv)) { + if (get_tarval_null (mode_P) == tv) { + pto_t *pto = new_pto (node); + set_node_pto (node, pto); + } + } + } break; + case (iro_Load): + case (iro_Call): + case (iro_Phi): + /* nothing --- handled by reset_node_pto on each pass */ + break; + default: { + /* nothing */ + } break; } } + +/** Initialise the given graph for a new pass run */ +static void pto_init_graph_allocs (ir_graph *graph) +{ + graph_info_t *ginfo = ecg_get_info (graph); + init_env_t *init_env; + + init_env = xmalloc (sizeof (init_env_t)); + init_env->n_ctxs = ginfo->n_ctxs; + + /* HERE ("start"); */ + + irg_walk_graph (graph, init_pto, NULL, init_env); + + /* HERE ("end"); */ + memset (init_env, 0x00, sizeof (init_env_t)); + free (init_env); +} + /* =================================================== Exported Implementation: =================================================== */ +/* "Fake" the arguments to the main method */ +void fake_main_args (ir_graph *graph) +{ + /* HERE ("start"); */ + + entity *ent = get_irg_entity (graph); + type *mtp = get_entity_type (ent); + ir_node **args = find_irg_args (graph); + type *ctp = get_method_param_type (mtp, 1); /* ctp == char[]*[]* */ + desc_t *arg_desc; + pto_t *arg_pto; + + /* 'main' has signature 'void(int, char[]*[]*)' */ + assert (NULL == args [2]); + + assert (is_Pointer_type (ctp)); + + ctp = get_pointer_points_to_type (ctp); /* ctp == char[]*[] */ + + assert (is_Array_type (ctp)); + + arg_desc = new_name (ctp, args [1], -1); + arg_pto = new_pto (args [1]); + /* todo: simulate 'store' to arg1[] ?!? */ + qset_insert (arg_pto->values, arg_desc); + + set_node_pto (args [1], arg_pto); + + DBGPRINT (1, (stdout, "%s:%i (%s[%li])\n", + __FUNCTION__, __LINE__, + OPNAME (args [1]), OPNUM (args [1]))); + +# ifdef TEST_MAIN_TYPE + ctp = get_array_element_type (ctp); /* ctp == char[]* */ + + assert (is_Pointer_type (ctp)); + + ctp = get_pointer_points_to_type (ctp); /* ctp == char[] */ + + assert (is_Array_type (ctp)); + + ctp = get_array_element_type (ctp); /* ctp == char */ + + assert (is_primitive_type (ctp)); +# endif /* defined TEST_MAIN_TYPE */ + + /* HERE ("end"); */ +} + +/* Initialise the Init module */ +void pto_init_init (void) +{ + pto_obst = (struct obstack*) xmalloc (sizeof (struct obstack)); + + obstack_init (pto_obst); +} + +/* Cleanup the Init module */ +void pto_init_cleanup (void) +{ + obstack_free (pto_obst, NULL); + memset (pto_obst, 0x00, sizeof (struct obstack)); + free (pto_obst); + pto_obst = NULL; +} + + /* Initialise the Names of the Types/Entities */ -void pto_init_type_names () +void pto_init_type_names (void) { - HERE ("start"); + /* HERE ("start"); */ type_walk (clear_type_link, NULL, NULL); + /* HERE ("end"); */ } /* Initialise the given graph for a new pass run */ void pto_init_graph (ir_graph *graph) { + ir_node **proj_args; graph_info_t *ginfo = ecg_get_info (graph); - int n_ctxs = ginfo->n_ctxs; - - init_env_t *init_env = xmalloc (sizeof (init_env_t)); - init_env->n_ctxs = n_ctxs; - - HERE ("start"); - - clear_graph_links (graph); + const int n_ctxs = ginfo->n_ctxs; + /* only for debugging stuff: */ entity *ent = get_irg_entity (graph); - const char *ent_name = (char*) get_entity_name (ent); const char *own_name = (char*) get_type_name (get_entity_owner (ent)); - DBGPRINT (0, (stdout, "%s: init \"%s.%s\" for %i ctxs\n", __FUNCTION__, + DBGPRINT (2, (stdout, "%s: init \"%s.%s\" for %i ctxs\n", + __FUNCTION__, own_name, ent_name, n_ctxs)); - irg_walk_graph (graph, fake_pto, NULL, init_env); + /* HERE ("start"); */ - HERE ("end"); -} + clear_graph_links (graph); + pto_init_graph_allocs (graph); -/* Set all alloc names to the right ptos for a new pass run */ -void pto_init_allocs (graph_info_t *ginfo, int ctx_idx) -{ - assert (NULL != ginfo); - - alloc_info_t *ainfo = ginfo->allocs; + /* HERE ("end"); */ - HERE ("start"); + assert (NULL == get_irg_proj_args (graph)); + proj_args = find_irg_args (graph); + set_irg_proj_args (graph, proj_args); + assert (proj_args == get_irg_proj_args (graph)); +} - while (NULL != ainfo) { - ir_node *alloc = ainfo->alloc; - alloc_pto_t *alloc_pto = (alloc_pto_t*) get_irn_link (alloc); +/* Reset the given graph for a new pass run */ +void pto_reset_graph_pto (ir_graph *graph, int ctx_idx) +{ + reset_env_t *reset_env; - alloc_pto->curr_pto = alloc_pto->ptos [ctx_idx]; + reset_env = (reset_env_t*) xmalloc (sizeof (reset_env_t)); + reset_env->ctx_idx = ctx_idx; - DBGPRINT (0, (stdout, "%s:%i (%s[%li]): ctx_idx = %i\n", - __FUNCTION__, __LINE__, OPNAME (alloc), OPNUM (alloc), ctx_idx)); + /* HERE ("start"); */ - ainfo = ainfo->prev; - } + irg_walk_graph (graph, reset_node_pto, NULL, reset_env); - HERE ("end"); + /* HERE ("end"); */ + memset (reset_env, 0x00, sizeof (reset_env_t)); + free (reset_env); } /* $Log$ + Revision 1.20 2005/12/05 12:19:54 beck + added missing include (not anymore included in libFirm) + + Revision 1.19 2005/06/17 17:42:32 beck + added doxygen docu + fixed (void) function headers + + Revision 1.18 2005/02/16 13:27:52 beck + added needed tv.h include + + Revision 1.17 2005/01/14 14:12:51 liekweg + prepare gnu extension fix + + Revision 1.16 2005/01/14 13:36:50 liekweg + don't put environments on the stack; handle consts + + Revision 1.15 2005/01/10 17:26:34 liekweg + fixup printfs, don't put environments on the stack + + Revision 1.14 2005/01/05 14:25:54 beck + renames all is_x*_type() functions to is_X*_type() to prevent name clash with EDG fronten + + Revision 1.13 2004/12/21 15:07:55 beck + removed C99 contructs + removed unnecessary allocation + removed use of mode_P, use mode_is_reference() instead + removed handling of Const with pointer tarvals, these constructs are removed + + Revision 1.12 2004/12/20 17:41:14 liekweg + __unused -> _unused + + Revision 1.11 2004/12/20 17:34:35 liekweg + fix recursion handling + + Revision 1.10 2004/12/15 13:31:00 liekweg + store ctx idx in names + + Revision 1.9 2004/12/15 09:18:18 liekweg + pto_name.c + + Revision 1.8 2004/12/02 16:17:51 beck + fixed config.h include + + Revision 1.7 2004/11/30 14:47:54 liekweg + fix initialisation; do correct iteration + + Revision 1.6 2004/11/26 16:00:41 liekweg + recognize class consts vs. ptr-to-class consts + + Revision 1.5 2004/11/24 14:53:56 liekweg + Bugfixes + + Revision 1.4 2004/11/20 21:21:56 liekweg + Finalise initialisation + Revision 1.3 2004/11/18 16:37:07 liekweg rewrite