https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127672
Drea Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2026-09-30
Ever confirmed|0 |1
Summary|Segfault in |[14/15/16/17 Regression]
|decl_namespace_context: |Segfault in
|function type has no |decl_namespace_context:
|TYPE_MAIN_DECL |function type has no
| |TYPE_MAIN_DECL
Known to work| |12.1.0
Known to fail| |13.1.0
--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
if (!in_main_input_context()) // is the reason why does not ICE
without the include.
{
tree nlt = no_linkage_check (ftype, /*relaxed_p=*/false);
if (nlt)
{
if (same_type_p (TREE_TYPE (t), nlt))
warning (OPT_Wsubobject_linkage, "\
%qT has a field %q#D whose type has no linkage",
type, t);
else
warning (OPT_Wsubobject_linkage, "\
%qT has a field %qD whose type depends on the type %qT which has no linkage",
type, t, nlt);
}
else if (cxx_dialect > cxx98
&& !decl_anon_ns_mem_p (ftype)) // this check here
warning (OPT_Wsubobject_linkage, "\
%qT has a field %q#D whose type has internal linkage",
type, t);
else // In C++98 this can only happen with unnamed namespaces.
warning (OPT_Wsubobject_linkage, "\
%qT has a field %q#D whose type uses the anonymous namespace",
type, t);
}
>This is reproducible from GCC 13 onward.
Which points to r13-2627-g8ef5fa4c56c82d .
