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yap-6.3
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make sure we track both producers and consumers (I am not sure we need to track 

producers, though)
Always mark choicepoint, even if cp_ap==NULL (fixes wine).
This commit is contained in:
Vitor Santos Costa 2009-07-23 23:13:16 -05:00
parent 22ac3ee80b
commit 11fb9183e1
1 changed files with 44 additions and 25 deletions
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69
C/heapgc.c
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@ -1859,6 +1859,33 @@ mark_delays(attvar_record *top, attvar_record *bottom)
#define mark_delays(T,B)
#endif
#ifdef TABLING
static choiceptr
youngest_cp(choiceptr gc_B, dep_fr_ptr *depfrp, sg_fr_ptr *aux_sg_frp)
{
dep_fr_ptr depfr = *depfrp;
sg_fr_ptr aux_sg_fr = *aux_sg_frp;
choiceptr min = gc_B;
if (!gc_B) {
return gc_B;
}
if (depfr && min > DepFr_cons_cp(depfr)) {
min = DepFr_cons_cp(depfr);
}
if (aux_sg_fr && min > SgFr_gen_cp(aux_sg_fr)) {
min = SgFr_gen_cp(aux_sg_fr);
}
if (depfr && min == DepFr_cons_cp(depfr)) {
*depfrp = DepFr_next(depfr);
}
if (aux_sg_fr && min == SgFr_gen_cp(aux_sg_fr)) {
*aux_sg_frp = SgFr_next(aux_sg_fr);
}
return min;
}
#endif
static void
mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
@ -1874,13 +1901,11 @@ mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
*su_cl = NEXTOP(PredStaticClause->CodeOfPred,Otapl);
#ifdef TABLING
dep_fr_ptr depfr = LOCAL_top_dep_fr;
sg_fr_ptr aux_sg_fr = LOCAL_top_sg_fr;
#endif /* TABLING */
#ifdef TABLING
if (depfr != NULL && gc_B >= DepFr_cons_cp(depfr)) {
gc_B = DepFr_cons_cp(depfr);
depfr = DepFr_next(depfr);
}
gc_B = youngest_cp(gc_B, &depfr, &aux_sg_fr);
#endif
while (gc_B != NULL) {
op_numbers opnum;
@ -1898,12 +1923,6 @@ mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
num_bs++;
#endif
#ifdef TABLING
/* include consumers */
if (depfr != NULL && gc_B >= DepFr_cons_cp(depfr)) {
gc_B = DepFr_cons_cp(depfr);
depfr = DepFr_next(depfr);
continue;
}
if (rtp == NULL) {
opnum = _table_completion;
} else
@ -2040,7 +2059,7 @@ mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
nargs = 0;
break;
case _table_completion:
if (rtp) {
{
CELL *vars_ptr, vars;
vars_ptr = (CELL *)(GEN_CP(gc_B) + 1);
nargs = SgFr_arity(GEN_CP(gc_B)->cp_sg_fr);
@ -2247,7 +2266,11 @@ mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
mark_external_reference(saved_reg);
}
}
#if TABLING
gc_B = youngest_cp(gc_B->cp_b, &depfr, &aux_sg_fr);
#else
gc_B = gc_B->cp_b;
#endif
}
}
@ -2791,27 +2814,19 @@ static void
sweep_choicepoints(choiceptr gc_B)
{
#ifdef TABLING
dep_fr_ptr depfr = LOCAL_top_dep_fr;
dep_fr_ptr depfr = LOCAL_top_dep_fr;
sg_fr_ptr aux_sg_fr = LOCAL_top_sg_fr;
#endif /* TABLING */
#ifdef TABLING
if (depfr != NULL && gc_B >= DepFr_cons_cp(depfr)) {
gc_B = DepFr_cons_cp(depfr);
depfr = DepFr_next(depfr);
}
gc_B = youngest_cp(gc_B, &depfr, &aux_sg_fr);
#endif
while(gc_B != NULL) {
while (gc_B != NULL) {
yamop *rtp = gc_B->cp_ap;
register OPCODE op;
op_numbers opnum;
#ifdef TABLING
/* include consumers */
if (depfr != NULL && gc_B >= DepFr_cons_cp(depfr)) {
gc_B = DepFr_cons_cp(depfr);
depfr = DepFr_next(depfr);
continue;
}
if (rtp == NULL) {
opnum = _table_completion;
} else
@ -2916,12 +2931,12 @@ sweep_choicepoints(choiceptr gc_B)
}
break;
case _table_completion:
if (rtp) {
{
int nargs;
CELL *vars_ptr, vars;
sweep_environments(gc_B->cp_env, EnvSize(gc_B->cp_cp), EnvBMap(gc_B->cp_cp));
vars_ptr = (CELL *)(GEN_CP(gc_B) + 1);
nargs = SgFr_arity(GEN_CP(gc_B)->cp_sg_fr);
nargs = SgFr_arity(GEN_CP(gc_B)->cp_sg_fr);
while(nargs--) {
CELL cp_cell = *vars_ptr;
if (MARKED_PTR(vars_ptr)) {
@ -3087,7 +3102,11 @@ sweep_choicepoints(choiceptr gc_B)
}
/* link to prev choicepoint */
#if TABLING
gc_B = youngest_cp(gc_B->cp_b, &depfr, &aux_sg_fr);
#else
gc_B = gc_B->cp_b;
#endif
}
}