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fix backtracking from generators to dynamic predicates.

This commit is contained in:
Vítor Santos Costa 2011-04-22 12:20:52 +01:00
parent 915b794130
commit 4eeb977c2c
2 changed files with 52 additions and 8 deletions
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26
C/absmi.c
View File

@ -1121,7 +1121,13 @@ Yap_absmi(int inp)
if (TrailTerm(B->cp_tr-1) == CLREF_TO_TRENTRY(cl) &&
B->cp_tr != B->cp_b->cp_tr) {
cl->ClFlags &= ~InUseMask;
TR = --B->cp_tr;
--B->cp_tr;
#if FROZEN_STACKS
if (B->cp_tr > TR_FZ)
#endif
{
TR = B->cp_tr;
}
/* next, recover space for the indexing code if it was erased */
if (cl->ClFlags & (ErasedMask|DirtyMask)) {
if (PREG != FAILCODE) {
@ -1392,7 +1398,8 @@ Yap_absmi(int inp)
PP = ap;
DEC_CLREF_COUNT(cl);
/* clear the entry from the trail */
TR = --B->cp_tr;
--B->cp_tr;
TR = B->cp_tr;
/* actually get rid of the code */
if (cl->ClRefCount == 0 && (cl->ClFlags & (ErasedMask|DirtyMask))) {
if (PREG != FAILCODE) {
@ -1421,7 +1428,13 @@ Yap_absmi(int inp)
if (TrailTerm(B->cp_tr-1) == CLREF_TO_TRENTRY(cl) &&
B->cp_tr != B->cp_b->cp_tr) {
cl->ClFlags &= ~InUseMask;
TR = --B->cp_tr;
--B->cp_tr;
#if FROZEN_STACKS
if (B->cp_tr > TR_FZ)
#endif
{
TR = B->cp_tr;
}
/* next, recover space for the indexing code if it was erased */
if (cl->ClFlags & (ErasedMask|DirtyMask)) {
if (PREG != FAILCODE) {
@ -8075,7 +8088,12 @@ Yap_absmi(int inp)
B->cp_tr != B->cp_b->cp_tr) {
cl->ClFlags &= ~InUseMask;
B->cp_tr--;
TR = B->cp_tr;
#if FROZEN_STACKS
if (B->cp_tr > TR_FZ)
#endif
{
TR = B->cp_tr;
}
/* next, recover space for the indexing code if it was erased */
if (cl->ClFlags & (ErasedMask|DirtyMask)) {
if (PREG != FAILCODE) {

34
C/tracer.c
View File

@ -163,10 +163,6 @@ low_level_trace(yap_low_level_port port, PredEntry *pred, CELL *args)
LOCK(Yap_heap_regs->low_level_trace_lock);
sc = Yap_heap_regs;
vsc_count++;
if (vsc_count < 45000LL)
return;
if (vsc_count == 47456LL)
jmp_deb(1);
#ifdef THREADS
MY_ThreadHandle.thread_inst_count++;
#endif
@ -189,6 +185,11 @@ low_level_trace(yap_low_level_port port, PredEntry *pred, CELL *args)
}
} else
return;
{
tr_fr_ptr pt = (tr_fr_ptr)Yap_TrailBase;
if (pt[140].term == 0 && pt[140].value != 0)
jmp_deb(1);
}
if (worker_id != 04 || worker_id != 03) return;
// if (vsc_count == 218280)
// vsc_xstop = 1;
@ -231,6 +232,31 @@ low_level_trace(yap_low_level_port port, PredEntry *pred, CELL *args)
UNLOCK(Yap_heap_regs->low_level_trace_lock);
return;
}
if (TR_FZ > TR)
jmp_deb(1);
{
tr_fr_ptr pt = (tr_fr_ptr)Yap_TrailBase;
if (pt[153].term == 0 && pt[153].value == 0 &&
pt[154].term != 0 && pt[154].value != 0 && ( TR > pt+154 ||
TR_FZ > pt+154))
jmp_deb(2);
if (pt[635].term == 0 && pt[635].value == 0 &&
pt[636].term != 0 && pt[636].value != 0 && ( TR > pt+636 ||
TR_FZ > pt+636))
jmp_deb(3);
if (pt[138].term == 0 && pt[138].value == 0 &&
pt[139].term != 0 && pt[139].value != 0 && ( TR > pt+138 ||
TR_FZ > pt+138) )
jmp_deb(4);
}
if (vsc_count == 287939LL)
jmp_deb(1);
if (vsc_count == 173118LL)
jmp_deb(1);
if (!(vsc_count >= 287934LL && vsc_count <= 287939LL) &&
!(vsc_count >= 173100LL && vsc_count <= 173239LL) &&
vsc_count != -1)
return;
if (vsc_count == 51021) {
printf("Here I go\n");
}