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Fix compiliation of getmetatable() for UDTYPE_IO_FILE.

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Reported by Sergey Bronnikov. #1279
This commit is contained in:
Mike Pall 2024-09-29 16:03:37 +02:00
parent c63a160706
commit 5141cbc20c
1 changed files with 3 additions and 3 deletions
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6
src/lj_record.c
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@ -821,6 +821,7 @@ int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm)
} else if (tref_isudata(ix->tab)) {
int udtype = udataV(&ix->tabv)->udtype;
mt = tabref(udataV(&ix->tabv)->metatable);
mix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_UDATA_META);
/* The metatables of special userdata objects are treated as immutable. */
if (udtype != UDTYPE_USERDATA) {
cTValue *mo;
@ -834,6 +835,8 @@ int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm)
}
immutable_mt:
mo = lj_tab_getstr(mt, mmname_str(J2G(J), mm));
ix->mt = mix.tab;
ix->mtv = mt;
if (!mo || tvisnil(mo))
return 0; /* No metamethod. */
/* Treat metamethod or index table as immutable, too. */
@ -841,11 +844,8 @@ int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm)
lj_trace_err(J, LJ_TRERR_BADTYPE);
copyTV(J->L, &ix->mobjv, mo);
ix->mobj = lj_ir_kgc(J, gcV(mo), tvisfunc(mo) ? IRT_FUNC : IRT_TAB);
ix->mtv = mt;
ix->mt = TREF_NIL; /* Dummy value for comparison semantics. */
return 1; /* Got metamethod or index table. */
}
mix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_UDATA_META);
} else {
/* Specialize to base metatable. Must flush mcode in lua_setmetatable(). */
mt = tabref(basemt_obj(J2G(J), &ix->tabv));