diogo/yap-6.3
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try to maintain a valid ASP even after a longjmp to top-level

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This commit is contained in:
Vítor Santos Costa 2010-07-27 17:27:47 +01:00
parent 2ce4427395
commit 08627579fc
1 changed files with 5 additions and 0 deletions
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5
C/exec.c
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@ -948,10 +948,12 @@ p_pred_goal_expansion_on(void) {
return PRED_GOAL_EXPANSION_ON;
}
static int
exec_absmi(int top)
{
int lval, out;
if (top && (lval = sigsetjmp (Yap_RestartEnv, 1)) != 0) {
switch(lval) {
case 1:
@ -965,6 +967,9 @@ exec_absmi(int top)
restore_B();
/* H is not so important, because we're gonna backtrack */
restore_H();
/* set stack */
ASP = B;
Yap_StartSlots();
LOCK(SignalLock);
CreepFlag = CalculateStackGap();
Yap_PrologMode = UserMode;