Use explicit conversion type for IR_TOSTR. Add char conversion.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lj_ffrecord.c b/src/lj_ffrecord.c
index 32346d22..929dbb55 100644
--- a/src/lj_ffrecord.c
+++ b/src/lj_ffrecord.c
@@ -335,7 +335,8 @@ static void LJ_FASTCALL recff_tostring(jit_State *J, RecordFFData *rd)
     /* Pass on result in J->base[0]. */
   } else if (!recff_metacall(J, rd, MM_tostring)) {
     if (tref_isnumber(tr)) {
-      J->base[0] = emitir(IRT(IR_TOSTR, IRT_STR), tr, 0);
+      J->base[0] = emitir(IRT(IR_TOSTR, IRT_STR), tr,
+                          tref_isnum(tr) ? IRTOSTR_NUM : IRTOSTR_INT);
     } else if (tref_ispri(tr)) {
       J->base[0] = lj_ir_kstr(J, strV(&J->fn->c.upvalue[tref_type(tr)]));
     } else {