https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87133
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
In calls.c I see:
│4742 if (outmode != VOIDmode)
│4743 {
│4744 tfom = lang_hooks.types.type_for_mode (outmode, 0);
>│4745 if (aggregate_value_p (tfom, 0))
(gdb) p tfom
$2 = <tree 0x0>
(gdb) p outmode
$3 = E_KFmode
Would it help?
