On Thu, Dec 27, 2018 at 8:26 AM Nguyễn Thái Ngọc Duy [off-list ref] wrote:

Bitfield addresses cannot be passed around in a pointer. This makes it
hard to use parse-options to set/unset them. Turn this struct to
normal integers. This of course increases the size of this struct
multiple times, but since we only have a handful of diff_options
variables around, memory consumption is not at all a concern.

Makes sense, and continues
8cc633286a (Merge branch 'bw/diff-opt-impl-to-bitfields', 2017-11-09)