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Fix maxslots when recording BC_VARG, part 3.

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Thanks to Peter Cawley. #1046
This commit is contained in:
Mike Pall 2023-08-12 20:16:56 +02:00
parent caf7cbc57c
commit abb27c7771
1 changed files with 9 additions and 3 deletions
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12
src/lj_record.c
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@ -1518,8 +1518,12 @@ static void rec_varg(jit_State *J, BCReg dst, ptrdiff_t nresults)
if (J->framedepth > 0) { /* Simple case: varargs defined on-trace. */
ptrdiff_t i;
if (nvararg < 0) nvararg = 0;
if (nresults == -1) nresults = nvararg;
J->maxslot = dst + (BCReg)nresults;
if (nresults != 1) {
if (nresults == -1) nresults = nvararg;
J->maxslot = dst + (BCReg)nresults;
} else if (dst >= J->maxslot) {
J->maxslot = dst + 1;
}
if (J->baseslot + J->maxslot >= LJ_MAX_JSLOTS)
lj_trace_err(J, LJ_TRERR_STACKOV);
for (i = 0; i < nresults; i++)
@ -1552,7 +1556,9 @@ static void rec_varg(jit_State *J, BCReg dst, ptrdiff_t nresults)
}
for (i = nvararg; i < nresults; i++)
J->base[dst+i] = TREF_NIL;
J->maxslot = dst + (BCReg)nresults;
if (nresults != 1 || dst >= J->maxslot) {
J->maxslot = dst + (BCReg)nresults;
}
} else if (select_detect(J)) { /* y = select(x, ...) */
TRef tridx = J->base[dst-1];
TRef tr = TREF_NIL;