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new support for the common global trie (version GT-ST: global trie for subterms)

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This commit is contained in:
Ricardo Rocha
2010-04-03 05:58:14 +01:00
parent fd1f63a73b
commit 52a2b49263
33 changed files with 2564 additions and 2468 deletions
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452
OPTYap/tab.macros.h
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@@ -1,17 +1,19 @@
/**********************************************************************
The OPTYap Prolog system
OPTYap extends the Yap Prolog system to support or-parallel tabling
Copyright: R. Rocha and NCC - University of Porto, Portugal
File: tab.macros.h
version: $Id: tab.macros.h,v 1.22 2008-05-23 18:28:58 ricroc Exp $
**********************************************************************/
/************************************************************************
** **
** The YapTab/YapOr/OPTYap systems **
** **
** YapTab extends the Yap Prolog engine to support sequential tabling **
** YapOr extends the Yap Prolog engine to support or-parallelism **
** OPTYap extends the Yap Prolog engine to support or-parallel tabling **
** **
** **
** Yap Prolog was developed at University of Porto, Portugal **
** **
************************************************************************/
/* ------------------ **
** Includes **
** ------------------ */
/************************************
** Includes & Prototypes **
************************************/
#include <stdlib.h>
#if HAVE_STRING_H
@@ -19,51 +21,44 @@
#endif
#include "opt.mavar.h"
/* -------------------- **
** Prototypes **
** -------------------- */
STD_PROTO(static inline void adjust_freeze_registers, (void));
STD_PROTO(static inline void mark_as_completed, (sg_fr_ptr));
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_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));
STD_PROTO(static inline void abolish_all_frozen_cps, (void));
static inline CELL *expand_auxiliary_stack(CELL *);
static inline void adjust_freeze_registers(void);
static inline void mark_as_completed(sg_fr_ptr);
static inline void unbind_variables(tr_fr_ptr, tr_fr_ptr);
static inline void rebind_variables(tr_fr_ptr, tr_fr_ptr);
static inline void restore_bindings(tr_fr_ptr, tr_fr_ptr);
static inline void abolish_incomplete_subgoals(choiceptr);
static inline void free_subgoal_trie_hash_chain(sg_hash_ptr);
static inline void free_answer_trie_hash_chain(ans_hash_ptr);
static inline choiceptr freeze_current_cp(void);
static inline void resume_frozen_cp(choiceptr);
static inline void abolish_all_frozen_cps(void);
#ifdef YAPOR
STD_PROTO(static inline void pruning_over_tabling_data_structures, (void));
STD_PROTO(static inline void collect_suspension_frames, (or_fr_ptr));
static inline void pruning_over_tabling_data_structures(void);
static inline void collect_suspension_frames(or_fr_ptr);
#ifdef TIMESTAMP_CHECK
STD_PROTO(static inline susp_fr_ptr suspension_frame_to_resume, (or_fr_ptr, long));
static inline susp_fr_ptr suspension_frame_to_resume(or_fr_ptr, long);
#else
STD_PROTO(static inline susp_fr_ptr suspension_frame_to_resume, (or_fr_ptr));
static inline susp_fr_ptr suspension_frame_to_resume(or_fr_ptr);
#endif /* TIMESTAMP_CHECK */
#endif /* YAPOR */
#ifdef TABLING_INNER_CUTS
STD_PROTO(static inline void CUT_store_tg_answer, (or_fr_ptr, ans_node_ptr, choiceptr, int));
STD_PROTO(static inline tg_sol_fr_ptr CUT_store_tg_answers, (or_fr_ptr, tg_sol_fr_ptr, int));
STD_PROTO(static inline void CUT_validate_tg_answers, (tg_sol_fr_ptr));
STD_PROTO(static inline void CUT_join_tg_solutions, (tg_sol_fr_ptr *, tg_sol_fr_ptr));
STD_PROTO(static inline void CUT_join_solution_frame_tg_answers, (tg_sol_fr_ptr));
STD_PROTO(static inline void CUT_join_solution_frames_tg_answers, (tg_sol_fr_ptr));
STD_PROTO(static inline void CUT_free_tg_solution_frame, (tg_sol_fr_ptr));
STD_PROTO(static inline void CUT_free_tg_solution_frames, (tg_sol_fr_ptr));
STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_ptr, int));
static inline void CUT_store_tg_answer(or_fr_ptr, ans_node_ptr, choiceptr, int);
static inline tg_sol_fr_ptr CUT_store_tg_answers(or_fr_ptr, tg_sol_fr_ptr, int);
static inline void CUT_validate_tg_answers(tg_sol_fr_ptr);
static inline void CUT_join_tg_solutions(tg_sol_fr_ptr *, tg_sol_fr_ptr);
static inline void CUT_join_solution_frame_tg_answers(tg_sol_fr_ptr);
static inline void CUT_join_solution_frames_tg_answers(tg_sol_fr_ptr);
static inline void CUT_free_tg_solution_frame(tg_sol_fr_ptr);
static inline void CUT_free_tg_solution_frames(tg_sol_fr_ptr);
static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames(tg_sol_fr_ptr, int);
#endif /* TABLING_INNER_CUTS */
/* ----------------- **
** Defines **
** ----------------- */
/*********************
** Macros **
*********************/
#define SHOW_MODE_STRUCTURE 0
#define SHOW_MODE_STATISTICS 1
@@ -80,11 +75,21 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
#define TRAVERSE_POSITION_FIRST 1
#define TRAVERSE_POSITION_LAST 2
/* ----------------------- **
** Tabling Macros **
** ----------------------- */
/* 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) (((unsigned int) (TERM)) >> NumberOfLowTagBits)
#define VarIndexOfTerm(TERM) \
((((CELL) (TERM)) - GLOBAL_table_var_enumerator(0)) / sizeof(CELL))
#define IsTableVarTerm(TERM) \
((CELL) (TERM)) >= GLOBAL_table_var_enumerator(0) && \
((CELL) (TERM)) <= GLOBAL_table_var_enumerator(MAX_TABLE_VARS - 1)
#ifdef TRIE_COMPACT_PAIRS
#define PairTermMark NULL
#define CompactPairInit AbsPair((Term *) 0)
#define CompactPairEndTerm AbsPair((Term *) (LowTagBits + 1))
#define CompactPairEndList AbsPair((Term *) (2*(LowTagBits + 1)))
#endif /* TRIE_COMPACT_PAIRS */
#define NORM_CP(CP) ((choiceptr)(CP))
#define GEN_CP(CP) ((struct generator_choicept *)(CP))
@@ -99,89 +104,42 @@ 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)
#define STACK_POP_DOWN(STACK) *STACK++
#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) { \
Yap_Error(INTERNAL_ERROR, TermNil, "stack full (STACK_CHECK_EXPAND)"); \
}
/* should work for now */
#define STACK_CHECK_EXPAND1(STACK, STACK_LIMIT, STACK_BASE) STACK_CHECK_EXPAND(STACK, STACK_LIMIT, STACK_BASE)
#else
#define STACK_CHECK_EXPAND(STACK, STACK_LIMIT, STACK_BASE) \
if (STACK_LIMIT >= STACK) { \
void *old_top; \
UInt diff; \
CELL *NEW_STACK; \
INFORMATION_MESSAGE("Expanding trail in 64 Kbytes"); \
old_top = Yap_TrailTop; \
if (!Yap_growtrail(64 * 1024L, TRUE)) { \
Yap_Error(OUT_OF_TRAIL_ERROR, TermNil, "stack full (STACK_CHECK_EXPAND)"); \
P = FAILCODE; \
} else { \
diff = (void *)Yap_TrailTop - old_top; \
NEW_STACK = (CELL *)((void *)STACK + diff); \
memmove((void *)NEW_STACK, (void *)STACK, old_top - (void *)STACK); \
STACK = NEW_STACK; \
STACK_BASE = (CELL *)((void *)STACK_BASE + diff); \
} \
}
#endif /* YAPOR */
#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 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)
#define GLOBAL_TRIE_HASH_MARK ((Term) MakeTableVarTerm(MAX_TABLE_VARS))
#define IS_GLOBAL_TRIE_HASH(NODE) (TrNode_entry(NODE) == GLOBAL_TRIE_HASH_MARK)
#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)
#define SUBGOAL_TRIE_HASH_MARK ((Term) MakeTableVarTerm(MAX_TABLE_VARS))
#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)
/* 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) (((unsigned int) TERM) >> NumberOfLowTagBits)
#define VarIndexOfTerm(TERM) \
((((CELL) TERM) - GLOBAL_table_var_enumerator(0)) / sizeof(CELL))
#define IsTableVarTerm(TERM) \
((CELL) TERM) >= GLOBAL_table_var_enumerator(0) && \
((CELL) TERM) <= GLOBAL_table_var_enumerator(MAX_TABLE_VARS - 1)
#ifdef TRIE_COMPACT_PAIRS
#define PairTermMark NULL
#define CompactPairInit AbsPair((Term *) 0)
#define CompactPairEndTerm AbsPair((Term *) (LowTagBits + 1))
#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)))
#define frame_with_suspensions_not_collected(OR_FR) (OrFr_nearest_suspnode(OR_FR) == NULL)
#define STACK_PUSH_UP(ITEM, STACK) *--(STACK) = (CELL)(ITEM)
#define STACK_POP_UP(STACK) *--(STACK)
#define STACK_PUSH_DOWN(ITEM, STACK) *(STACK)++ = (CELL)(ITEM)
#define STACK_POP_DOWN(STACK) *(STACK)++
#define STACK_NOT_EMPTY(STACK, STACK_BASE) (STACK) != (STACK_BASE)
#define AUX_STACK_CHECK_EXPAND(STACK, STACK_LIMIT) if ((STACK_LIMIT) >= (STACK)) EXPAND_AUX_STACK(STACK)
#ifdef YAPOR
#define EXPAND_AUX_STACK(STACK) Yap_Error(INTERNAL_ERROR, TermNil, "stack full (STACK_CHECK_EXPAND)");
#else
#define EXPAND_AUX_STACK(STACK) STACK = expand_auxiliary_stack(STACK)
#endif /* YAPOR */
#ifdef YAPOR
#define frame_with_suspensions_not_collected(OR_FR) \
(OrFr_nearest_suspnode(OR_FR) == NULL)
#define find_dependency_node(SG_FR, LEADER_CP, DEP_ON_STACK) \
if (SgFr_gen_worker(SG_FR) == worker_id) { \
LEADER_CP = SgFr_gen_cp(SG_FR); \
@@ -207,6 +165,19 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
chain_dep_fr = DepFr_next(chain_dep_fr); \
} \
}
#ifdef TIMESTAMP
#define DepFr_init_timestamp_field(DEP_FR) DepFr_timestamp(DEP_FR) = 0
#else
#define DepFr_init_timestamp_field(DEP_FR)
#endif /* TIMESTAMP */
#define YAPOR_SET_LOAD(CP_PTR) SCH_set_load(CP_PTR)
#define SgFr_init_yapor_fields(SG_FR) \
SgFr_gen_worker(SG_FR) = worker_id; \
SgFr_gen_top_or_fr(SG_FR) = LOCAL_top_or_fr
#define DepFr_init_yapor_fields(DEP_FR, DEP_ON_STACK, TOP_OR_FR) \
DepFr_leader_dep_is_on_stack(DEP_FR) = DEP_ON_STACK; \
DepFr_top_or_fr(DEP_FR) = TOP_OR_FR; \
DepFr_init_timestamp_field(DEP_FR)
#else
#define find_dependency_node(SG_FR, LEADER_CP, DEP_ON_STACK) \
LEADER_CP = SgFr_gen_cp(SG_FR); \
@@ -221,37 +192,19 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
chain_dep_fr = DepFr_next(chain_dep_fr); \
} \
}
#endif /* YAPOR */
#ifdef YAPOR
#ifdef TIMESTAMP
#define DepFr_init_timestamp_field(DEP_FR) DepFr_timestamp(DEP_FR) = 0
#else
#define DepFr_init_timestamp_field(DEP_FR)
#endif /* TIMESTAMP */
#define YAPOR_SET_LOAD(CP_PTR) SCH_set_load(CP_PTR)
#define SgFr_init_yapor_fields(SG_FR) \
SgFr_gen_worker(SG_FR) = worker_id; \
SgFr_gen_top_or_fr(SG_FR) = LOCAL_top_or_fr
#define DepFr_init_yapor_fields(DEP_FR, DEP_ON_STACK, TOP_OR_FR) \
DepFr_leader_dep_is_on_stack(DEP_FR) = DEP_ON_STACK; \
DepFr_top_or_fr(DEP_FR) = TOP_OR_FR; \
DepFr_init_timestamp_field(DEP_FR)
#else
#define YAPOR_SET_LOAD(CP_PTR)
#define SgFr_init_yapor_fields(SG_FR)
#define DepFr_init_yapor_fields(DEP_FR, DEP_ON_STACK, TOP_OR_FR)
#endif /* YAPOR */
#ifdef TABLE_LOCK_AT_ENTRY_LEVEL
#define TabEnt_init_lock_field(TAB_ENT) INIT_LOCK(TabEnt_lock(TAB_ENT))
#define TabEnt_init_lock_field(TAB_ENT) \
INIT_LOCK(TabEnt_lock(TAB_ENT))
#define SgHash_init_next_field(HASH, TAB_ENT) \
Hash_next(HASH) = TabEnt_hash_chain(TAB_ENT); \
TabEnt_hash_chain(TAB_ENT) = HASH
#define AnsHash_init_next_field(HASH, SG_FR) \
Hash_next(HASH) = SgFr_hash_chain(SG_FR); \
#define AnsHash_init_next_field(HASH, SG_FR) \
Hash_next(HASH) = SgFr_hash_chain(SG_FR); \
SgFr_hash_chain(SG_FR) = HASH
#else
#define TabEnt_init_lock_field(TAB_ENT)
@@ -260,18 +213,82 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
Hash_next(HASH) = TabEnt_hash_chain(TAB_ENT); \
TabEnt_hash_chain(TAB_ENT) = HASH; \
UNLOCK(TabEnt_lock(TAB_ENT))
#define AnsHash_init_next_field(HASH, SG_FR) \
LOCK(SgFr_lock(SG_FR)); \
Hash_next(HASH) = SgFr_hash_chain(SG_FR); \
SgFr_hash_chain(SG_FR) = HASH; \
#define AnsHash_init_next_field(HASH, SG_FR) \
LOCK(SgFr_lock(SG_FR)); \
Hash_next(HASH) = SgFr_hash_chain(SG_FR); \
SgFr_hash_chain(SG_FR) = HASH; \
UNLOCK(SgFr_lock(SG_FR))
#endif /* TABLE_LOCK_AT_ENTRY_LEVEL */
#ifdef TABLE_LOCK_AT_NODE_LEVEL
#define TrNode_init_lock_field(NODE) INIT_LOCK(TrNode_lock(NODE))
#define TrNode_init_lock_field(NODE) \
INIT_LOCK(TrNode_lock(NODE))
#else
#define TrNode_init_lock_field(NODE)
#endif /* TABLE_LOCK_AT_NODE_LEVEL */
#ifdef GLOBAL_TRIE
#define INCREMENT_GLOBAL_TRIE_REFS(NODE) \
{ register gt_node_ptr gt_node = (gt_node_ptr) (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 = (gt_node_ptr) (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 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_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; \
SgFr_hash_chain(SG_FR) = NULL; \
SgFr_answer_trie(SG_FR) = ans_node; \
SgFr_first_answer(SG_FR) = NULL; \
SgFr_last_answer(SG_FR) = NULL; \
}
#define init_subgoal_frame(SG_FR) \
{ SgFr_init_yapor_fields(SG_FR); \
SgFr_state(SG_FR) = evaluating; \
SgFr_next(SG_FR) = LOCAL_top_sg_fr; \
LOCAL_top_sg_fr = SG_FR; \
}
#define new_dependency_frame(DEP_FR, DEP_ON_STACK, TOP_OR_FR, LEADER_CP, CONS_CP, SG_FR, NEXT) \
ALLOC_DEPENDENCY_FRAME(DEP_FR); \
INIT_LOCK(DepFr_lock(DEP_FR)); \
DepFr_init_yapor_fields(DEP_FR, DEP_ON_STACK, TOP_OR_FR); \
DepFr_backchain_cp(DEP_FR) = NULL; \
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_next(DEP_FR) = NEXT
#define new_suspension_frame(SUSP_FR, TOP_OR_FR_ON_STACK, TOP_DEP, TOP_SG, \
H_REG, B_REG, TR_REG, H_SIZE, B_SIZE, TR_SIZE) \
@@ -292,66 +309,6 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
memcpy(SuspFr_local_start(SUSP_FR), SuspFr_local_reg(SUSP_FR), B_SIZE); \
memcpy(SuspFr_trail_start(SUSP_FR), SuspFr_trail_reg(SUSP_FR), TR_SIZE)
#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; \
SgFr_hash_chain(SG_FR) = NULL; \
SgFr_answer_trie(SG_FR) = ans_node; \
SgFr_first_answer(SG_FR) = NULL; \
SgFr_last_answer(SG_FR) = NULL; \
}
#define init_subgoal_frame(SG_FR) \
{ SgFr_init_yapor_fields(SG_FR); \
SgFr_state(SG_FR) = evaluating; \
SgFr_next(SG_FR) = LOCAL_top_sg_fr; \
LOCAL_top_sg_fr = SG_FR; \
}
#define new_dependency_frame(DEP_FR, DEP_ON_STACK, TOP_OR_FR, LEADER_CP, CONS_CP, SG_FR, NEXT) \
ALLOC_DEPENDENCY_FRAME(DEP_FR); \
INIT_LOCK(DepFr_lock(DEP_FR)); \
DepFr_init_yapor_fields(DEP_FR, DEP_ON_STACK, TOP_OR_FR); \
DepFr_backchain_cp(DEP_FR) = NULL; \
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_next(DEP_FR) = NEXT
#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_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)
@@ -360,13 +317,12 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
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_entry(NODE) = ENTRY; \
TrNode_init_lock_field(NODE); \
TrNode_child(NODE) = CHILD; \
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)
@@ -382,30 +338,12 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
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 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_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_subgoal_trie_hash(HASH, NUM_NODES, TAB_ENT) \
ALLOC_SUBGOAL_TRIE_HASH(HASH); \
@@ -415,7 +353,6 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
Hash_num_nodes(HASH) = NUM_NODES; \
SgHash_init_next_field(HASH, TAB_ENT)
#define new_answer_trie_hash(HASH, NUM_NODES, SG_FR) \
ALLOC_ANSWER_TRIE_HASH(HASH); \
Hash_mark(HASH) = ANSWER_TRIE_HASH_MARK; \
@@ -424,6 +361,12 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
Hash_num_nodes(HASH) = NUM_NODES; \
AnsHash_init_next_field(HASH, SG_FR)
#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
#ifdef LIMIT_TABLING
#define insert_into_global_sg_fr_list(SG_FR) \
@@ -455,9 +398,25 @@ STD_PROTO(static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames, (tg_sol_fr_p
/* ------------------------- **
/******************************
** Inline funcions **
** ------------------------- */
******************************/
static inline
CELL *expand_auxiliary_stack(CELL *stack) {
void *old_top = Yap_TrailTop;
INFORMATION_MESSAGE("Expanding trail in 64 Kbytes");
if (! Yap_growtrail(64 * 1024L, TRUE)) { /* TRUE means 'contiguous_only' */
Yap_Error(OUT_OF_TRAIL_ERROR, TermNil, "stack full (STACK_CHECK_EXPAND)");
return NULL;
} else {
UInt diff = (void *)Yap_TrailTop - old_top;
CELL *new_stack = (CELL *)((void *)stack + diff);
memmove((void *)new_stack, (void *)stack, old_top - (void *)stack);
return new_stack;
}
}
static inline
void adjust_freeze_registers(void) {
@@ -898,11 +857,6 @@ susp_fr_ptr suspension_frame_to_resume(or_fr_ptr susp_or_fr) {
#endif /* YAPOR */
/* --------------------------------------------------- **
** Cut Stuff: Managing table subgoal answers **
** --------------------------------------------------- */
#ifdef TABLING_INNER_CUTS
static inline
void CUT_store_tg_answer(or_fr_ptr or_frame, ans_node_ptr ans_node, choiceptr gen_cp, int ltt) {