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support for the common global trie (version GT-T: global trie for terms)

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This commit is contained in:
Ricardo Rocha
2009-09-27 02:31:31 +01:00
parent 218bc2e423
commit 7d841065e9
11 changed files with 2091 additions and 1381 deletions
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172
OPTYap/tab.macros.h
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@@ -28,8 +28,8 @@ STD_PROTO(static inline void unbind_variables, (tr_fr_ptr, tr_fr_ptr));
STD_PROTO(static inline void rebind_variables, (tr_fr_ptr, tr_fr_ptr));
STD_PROTO(static inline void restore_bindings, (tr_fr_ptr, tr_fr_ptr));
STD_PROTO(static inline void abolish_incomplete_subgoals, (choiceptr));
STD_PROTO(static inline void free_subgoal_hash_chain, (sg_hash_ptr));
STD_PROTO(static inline void free_answer_hash_chain, (ans_hash_ptr));
STD_PROTO(static inline void free_subgoal_trie_hash_chain, (sg_hash_ptr));
STD_PROTO(static inline void free_answer_trie_hash_chain, (ans_hash_ptr));
STD_PROTO(static inline choiceptr freeze_current_cp, (void));
STD_PROTO(static inline void resume_frozen_cp, (choiceptr));
@@ -61,6 +61,10 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
** Defines **
** ----------------- */
#define SHOW_MODE_STRUCTURE 0
#define SHOW_MODE_STATISTICS 1
#define TRAVERSE_TYPE_SUBGOAL 0
#define TRAVERSE_TYPE_ANSWER 1
#define TRAVERSE_MODE_NORMAL 0
#define TRAVERSE_MODE_FLOAT 1
#define TRAVERSE_MODE_FLOAT2 2
@@ -91,9 +95,6 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
#define IS_BATCHED_GEN_CP(CP) (GEN_CP(CP)->cp_dep_fr == NULL)
#endif /* DETERMINISTIC_TABLING */
#define TAG_AS_ANSWER_LEAF_NODE(NODE) TrNode_parent(NODE) = (ans_node_ptr)((unsigned long int)TrNode_parent(NODE) | 0x1)
#define UNTAG_ANSWER_LEAF_NODE(NODE) ((ans_node_ptr)((unsigned long int)NODE & ~(0x1)))
#define IS_ANSWER_LEAF_NODE(NODE) ((unsigned long int)TrNode_parent(NODE) & 0x1)
#define STACK_NOT_EMPTY(STACK, STACK_BASE) STACK != STACK_BASE
#define STACK_PUSH_UP(ITEM, STACK) *--STACK = (CELL)(ITEM)
@@ -101,8 +102,8 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
#define STACK_PUSH_DOWN(ITEM, STACK) *STACK++ = (CELL)(ITEM)
#define STACK_POP_UP(STACK) *--STACK
#ifdef YAPOR
#define STACK_CHECK_EXPAND(STACK, STACK_LIMIT, STACK_BASE) \
if (STACK_LIMIT >= STACK) { \
#define STACK_CHECK_EXPAND(STACK, STACK_LIMIT, STACK_BASE) \
if (STACK_LIMIT >= STACK) { \
Yap_Error(INTERNAL_ERROR, TermNil, "stack full (STACK_CHECK_EXPAND)")
#else
#define STACK_CHECK_EXPAND(STACK, STACK_LIMIT, STACK_BASE) \
@@ -126,10 +127,30 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
#endif /* YAPOR */
#ifdef GLOBAL_TRIE
#define INCREMENT_GLOBAL_TRIE_REFS(NODE) \
{ register gt_node_ptr gt_node = NODE; \
TrNode_child(gt_node) = (gt_node_ptr) ((unsigned long int) TrNode_child(gt_node) + 1); \
}
#define DECREMENT_GLOBAL_TRIE_REFS(NODE) \
{ register gt_node_ptr gt_node = NODE; \
TrNode_child(gt_node) = (gt_node_ptr) ((unsigned long int) TrNode_child(gt_node) - 1); \
if (TrNode_child(gt_node) == 0) \
free_global_trie_branch(gt_node); \
}
#else
#define INCREMENT_GLOBAL_TRIE_REFS(NODE)
#define DECREMENT_GLOBAL_TRIE_REFS(NODE)
#endif /* GLOBAL_TRIE */
#define TAG_AS_ANSWER_LEAF_NODE(NODE) TrNode_parent(NODE) = (ans_node_ptr)((unsigned long int) TrNode_parent(NODE) | 0x1)
#define UNTAG_ANSWER_LEAF_NODE(NODE) ((ans_node_ptr)((unsigned long int) NODE & ~(0x1)))
#define IS_ANSWER_LEAF_NODE(NODE) ((unsigned long int) TrNode_parent(NODE) & 0x1)
/* LowTagBits is 3 for 32 bit-machines and 7 for 64 bit-machines */
#define NumberOfLowTagBits (LowTagBits == 3 ? 2 : 3)
#define MakeTableVarTerm(INDEX) (INDEX << NumberOfLowTagBits)
#define VarIndexOfTableTerm(TERM) (TERM >> NumberOfLowTagBits)
#define VarIndexOfTableTerm(TERM) (((unsigned int) TERM) >> NumberOfLowTagBits)
#define VarIndexOfTerm(TERM) \
((((CELL) TERM) - GLOBAL_table_var_enumerator(0)) / sizeof(CELL))
#define IsTableVarTerm(TERM) \
@@ -142,7 +163,8 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
#define CompactPairEndList AbsPair((Term *) (2*(LowTagBits + 1)))
#endif /* TRIE_COMPACT_PAIRS */
#define HASH_TABLE_LOCK(NODE) ((((unsigned long int)NODE) >> 5) & (TABLE_LOCK_BUCKETS - 1))
#define HASH_TABLE_LOCK(NODE) ((((unsigned long int) NODE) >> 5) & (TABLE_LOCK_BUCKETS - 1))
#define LOCK_TABLE(NODE) LOCK(GLOBAL_table_lock(HASH_TABLE_LOCK(NODE)))
#define UNLOCK_TABLE(NODE) UNLOCK(GLOBAL_table_lock(HASH_TABLE_LOCK(NODE)))
@@ -264,11 +286,11 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
#define new_subgoal_frame(SG_FR, CODE) \
{ register ans_node_ptr ans_node; \
new_root_answer_trie_node(ans_node); \
ALLOC_SUBGOAL_FRAME(SG_FR); \
INIT_LOCK(SgFr_lock(SG_FR)); \
SgFr_code(SG_FR) = CODE; \
SgFr_state(SG_FR) = ready; \
new_answer_trie_node(ans_node, 0, 0, NULL, NULL, NULL); \
SgFr_hash_chain(SG_FR) = NULL; \
SgFr_answer_trie(SG_FR) = ans_node; \
SgFr_first_answer(SG_FR) = NULL; \
@@ -292,66 +314,102 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
DepFr_leader_cp(DEP_FR) = NORM_CP(LEADER_CP); \
DepFr_cons_cp(DEP_FR) = NORM_CP(CONS_CP); \
/* start with TrNode_child(DepFr_last_answer(DEP_FR)) pointing to SgFr_first_answer(SG_FR) */ \
DepFr_last_answer(DEP_FR) = (ans_node_ptr)((unsigned long int)(SG_FR) + \
(unsigned long int)(&SgFr_first_answer((sg_fr_ptr)DEP_FR)) - \
(unsigned long int)(&TrNode_child((ans_node_ptr)DEP_FR))); \
DepFr_last_answer(DEP_FR) = (ans_node_ptr) ((unsigned long int) (SG_FR) + \
(unsigned long int) (&SgFr_first_answer((sg_fr_ptr)DEP_FR)) - \
(unsigned long int) (&TrNode_child((ans_node_ptr)DEP_FR))); \
DepFr_next(DEP_FR) = NEXT
#define new_table_entry(TAB_ENT, PRED_ENTRY, ATOM, ARITY, SUBGOAL_TRIE) \
ALLOC_TABLE_ENTRY(TAB_ENT); \
TabEnt_init_lock_field(TAB_ENT); \
TabEnt_pe(TAB_ENT) = PRED_ENTRY; \
TabEnt_atom(TAB_ENT) = ATOM; \
TabEnt_arity(TAB_ENT) = ARITY; \
TabEnt_mode(TAB_ENT) = 0; \
TabEnt_subgoal_trie(TAB_ENT) = SUBGOAL_TRIE; \
TabEnt_hash_chain(TAB_ENT) = NULL; \
TabEnt_next(TAB_ENT) = GLOBAL_root_tab_ent; \
GLOBAL_root_tab_ent = TAB_ENT
#define new_table_entry(TAB_ENT, PRED_ENTRY, ATOM, ARITY) \
{ register sg_node_ptr sg_node; \
new_root_subgoal_trie_node(sg_node); \
ALLOC_TABLE_ENTRY(TAB_ENT); \
TabEnt_init_lock_field(TAB_ENT); \
TabEnt_pe(TAB_ENT) = PRED_ENTRY; \
TabEnt_atom(TAB_ENT) = ATOM; \
TabEnt_arity(TAB_ENT) = ARITY; \
TabEnt_mode(TAB_ENT) = 0; \
TabEnt_subgoal_trie(TAB_ENT) = sg_node; \
TabEnt_hash_chain(TAB_ENT) = NULL; \
TabEnt_next(TAB_ENT) = GLOBAL_root_tab_ent; \
GLOBAL_root_tab_ent = TAB_ENT; \
}
#define new_subgoal_trie_node(NODE, ENTRY, CHILD, PARENT, NEXT) \
ALLOC_SUBGOAL_TRIE_NODE(NODE); \
TrNode_entry(NODE) = ENTRY; \
TrNode_init_lock_field(NODE); \
TrNode_child(NODE) = CHILD; \
TrNode_parent(NODE) = PARENT; \
#define new_global_trie_node(NODE, ENTRY, CHILD, PARENT, NEXT) \
ALLOC_GLOBAL_TRIE_NODE(NODE); \
TrNode_entry(NODE) = ENTRY; \
TrNode_child(NODE) = CHILD; \
TrNode_parent(NODE) = PARENT; \
TrNode_next(NODE) = NEXT
#define new_root_subgoal_trie_node(NODE) \
ALLOC_SUBGOAL_TRIE_NODE(NODE); \
init_subgoal_trie_node(NODE, 0, NULL, NULL, NULL)
#define new_subgoal_trie_node(NODE, ENTRY, CHILD, PARENT, NEXT) \
INCREMENT_GLOBAL_TRIE_REFS(ENTRY); \
ALLOC_SUBGOAL_TRIE_NODE(NODE); \
init_subgoal_trie_node(NODE, ENTRY, CHILD, PARENT, NEXT)
#define init_subgoal_trie_node(NODE, ENTRY, CHILD, PARENT, NEXT) \
TrNode_entry(NODE) = ENTRY; \
TrNode_init_lock_field(NODE); \
TrNode_child(NODE) = CHILD; \
TrNode_parent(NODE) = PARENT; \
TrNode_next(NODE) = NEXT
#define new_root_answer_trie_node(NODE) \
ALLOC_ANSWER_TRIE_NODE(NODE); \
init_answer_trie_node(NODE, 0, 0, NULL, NULL, NULL)
#define new_answer_trie_node(NODE, INSTR, ENTRY, CHILD, PARENT, NEXT) \
INCREMENT_GLOBAL_TRIE_REFS(ENTRY); \
ALLOC_ANSWER_TRIE_NODE(NODE); \
init_answer_trie_node(NODE, INSTR, ENTRY, CHILD, PARENT, NEXT)
#define init_answer_trie_node(NODE, INSTR, ENTRY, CHILD, PARENT, NEXT) \
TrNode_instr(NODE) = INSTR; \
TrNode_entry(NODE) = ENTRY; \
TrNode_init_lock_field(NODE); \
TrNode_child(NODE) = CHILD; \
TrNode_parent(NODE) = PARENT; \
TrNode_next(NODE) = NEXT
#define new_answer_trie_node(NODE, INSTR, ENTRY, CHILD, PARENT, NEXT) \
ALLOC_ANSWER_TRIE_NODE(NODE); \
TrNode_instr(NODE) = INSTR; \
TrNode_entry(NODE) = ENTRY; \
TrNode_init_lock_field(NODE); \
TrNode_child(NODE) = CHILD; \
TrNode_parent(NODE) = PARENT; \
TrNode_next(NODE) = NEXT
#define MAX_NODES_PER_TRIE_LEVEL 8
#define MAX_NODES_PER_BUCKET (MAX_NODES_PER_TRIE_LEVEL / 2)
#define BASE_HASH_BUCKETS 64
#define HASH_ENTRY(ENTRY, SEED) ((((unsigned long int) ENTRY) >> NumberOfLowTagBits) & (SEED))
#ifdef GLOBAL_TRIE
#define GLOBAL_TRIE_HASH_MARK ((Term) MakeTableVarTerm(MAX_TABLE_VARS))
#define IS_GLOBAL_TRIE_HASH(NODE) (TrNode_entry(NODE) == GLOBAL_TRIE_HASH_MARK)
#define SUBGOAL_TRIE_HASH_MARK (NULL)
#else
#define SUBGOAL_TRIE_HASH_MARK ((Term) MakeTableVarTerm(MAX_TABLE_VARS))
#endif /* GLOBAL_TRIE */
#define IS_SUBGOAL_TRIE_HASH(NODE) (TrNode_entry(NODE) == SUBGOAL_TRIE_HASH_MARK)
#define ANSWER_TRIE_HASH_MARK 0
#define IS_ANSWER_TRIE_HASH(NODE) (TrNode_instr(NODE) == ANSWER_TRIE_HASH_MARK)
#define MAX_NODES_PER_TRIE_LEVEL 8
#define MAX_NODES_PER_BUCKET (MAX_NODES_PER_TRIE_LEVEL / 2)
#define BASE_HASH_BUCKETS 64
#define SUBGOAL_HASH_MARK ((Term) MakeTableVarTerm(MAX_TABLE_VARS))
#define ANSWER_HASH_MARK 0
#define IS_SUBGOAL_HASH(NODE) (TrNode_entry(NODE) == SUBGOAL_HASH_MARK)
#define IS_ANSWER_HASH(NODE) (TrNode_instr(NODE) == ANSWER_HASH_MARK)
#define HASH_TERM(TERM, SEED) (((TERM) >> NumberOfLowTagBits) & (SEED))
#define new_global_trie_hash(HASH, NUM_NODES) \
ALLOC_GLOBAL_TRIE_HASH(HASH); \
Hash_mark(HASH) = GLOBAL_TRIE_HASH_MARK; \
Hash_num_buckets(HASH) = BASE_HASH_BUCKETS; \
ALLOC_HASH_BUCKETS(Hash_buckets(HASH), BASE_HASH_BUCKETS); \
Hash_num_nodes(HASH) = NUM_NODES
#define new_subgoal_hash(HASH, NUM_NODES, TAB_ENT) \
ALLOC_SUBGOAL_HASH(HASH); \
Hash_mark(HASH) = SUBGOAL_HASH_MARK; \
#define new_subgoal_trie_hash(HASH, NUM_NODES, TAB_ENT) \
ALLOC_SUBGOAL_TRIE_HASH(HASH); \
Hash_mark(HASH) = SUBGOAL_TRIE_HASH_MARK; \
Hash_num_buckets(HASH) = BASE_HASH_BUCKETS; \
ALLOC_HASH_BUCKETS(Hash_buckets(HASH), BASE_HASH_BUCKETS); \
Hash_num_nodes(HASH) = NUM_NODES; \
SgHash_init_next_field(HASH, TAB_ENT)
#define new_answer_hash(HASH, NUM_NODES, SG_FR) \
ALLOC_ANSWER_HASH(HASH); \
Hash_mark(HASH) = ANSWER_HASH_MARK; \
#define new_answer_trie_hash(HASH, NUM_NODES, SG_FR) \
ALLOC_ANSWER_TRIE_HASH(HASH); \
Hash_mark(HASH) = ANSWER_TRIE_HASH_MARK; \
Hash_num_buckets(HASH) = BASE_HASH_BUCKETS; \
ALLOC_HASH_BUCKETS(Hash_buckets(HASH), BASE_HASH_BUCKETS); \
Hash_num_nodes(HASH) = NUM_NODES; \
@@ -621,7 +679,7 @@ void abolish_incomplete_subgoals(choiceptr prune_cp) {
#else
ans_node_ptr node;
SgFr_state(sg_fr) = ready;
free_answer_hash_chain(SgFr_hash_chain(sg_fr));
free_answer_trie_hash_chain(SgFr_hash_chain(sg_fr));
SgFr_hash_chain(sg_fr) = NULL;
SgFr_first_answer(sg_fr) = NULL;
SgFr_last_answer(sg_fr) = NULL;
@@ -641,7 +699,7 @@ void abolish_incomplete_subgoals(choiceptr prune_cp) {
static inline
void free_subgoal_hash_chain(sg_hash_ptr hash) {
void free_subgoal_trie_hash_chain(sg_hash_ptr hash) {
while (hash) {
sg_node_ptr chain_node, *bucket, *last_bucket;
sg_hash_ptr next_hash;
@@ -662,7 +720,7 @@ void free_subgoal_hash_chain(sg_hash_ptr hash) {
}
next_hash = Hash_next(hash);
FREE_HASH_BUCKETS(Hash_buckets(hash));
FREE_SUBGOAL_HASH(hash);
FREE_SUBGOAL_TRIE_HASH(hash);
hash = next_hash;
}
return;
@@ -670,7 +728,7 @@ void free_subgoal_hash_chain(sg_hash_ptr hash) {
static inline
void free_answer_hash_chain(ans_hash_ptr hash) {
void free_answer_trie_hash_chain(ans_hash_ptr hash) {
while (hash) {
ans_node_ptr chain_node, *bucket, *last_bucket;
ans_hash_ptr next_hash;
@@ -691,7 +749,7 @@ void free_answer_hash_chain(ans_hash_ptr hash) {
}
next_hash = Hash_next(hash);
FREE_HASH_BUCKETS(Hash_buckets(hash));
FREE_ANSWER_HASH(hash);
FREE_ANSWER_TRIE_HASH(hash);
hash = next_hash;
}
return;