From 21ecb3610e0ef5f9f6badf5119b2098d351db773 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Wed, 19 Aug 2026 18:21:10 +0200
Subject: [PATCH] Fix unpack() recording.

Thanks to Appla. #1512
---
 src/lj_ffrecord.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lj_ffrecord.c b/src/lj_ffrecord.c
index 697dcde0..20e0455f 100644
--- a/src/lj_ffrecord.c
+++ b/src/lj_ffrecord.c
@@ -354,10 +354,11 @@ static void LJ_FASTCALL recff_unpack(jit_State *J, RecordFFData *rd)
     rd->nres = (ptrdiff_t)(len + 1);
     ix.tab = trtab; ix.val = 0; ix.idxchain = 0;
     settabV(J->L, &ix.tabv, t);
-    for (i = start; i <= end; i++) {
+    for (i = start; ; i++) {
       ix.key = lj_ir_kint(J, i);
       setintV(&ix.keyv, i);
       J->base[i - start] = lj_record_idx(J, &ix);
+      if (i == end) break;
     }
   } else {  /* Empty result. */
     emitir(IRTGI(IR_LT), trend, trstart);