https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124417
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
We should do what the comment mentions. I.e. (probably after
processing_template_decl early out), pass to that function also ctx and
if (!flag_exceptions)
{
if (!cxx_constexpr_quiet_p (ctx))
{
auto_diagnostic_group d;
error_at (loc, "meta function would throw exception: %s", _(what));
inform (loc, "exceptions are disabled though, treated as
non-constant");
}
*non_constant_p = true;
return NULL_TREE;
}
or something similar.
