avoid using fill_insert
gcc 9.3 would use default_append here, but gcc 10.2 seems to be able
to inline it completely. (tested with godbolt)
@@ -116,7 +116,7 @@ private:
_keys.push_back(k);
}
}
- _values.resize(_values.size() + _values_per_entry, V{});
+ _values.resize(_values.size() + _values_per_entry);
auto [pos, was_inserted] = _map.insert(MyKey{{tag_id},hash});
assert(was_inserted);
return Tag{tag_id};
