The current release is broken on win64 if you return structs that
aren’t a multiple of 16 bytes, as in commit 098dca6b31 a bunch of
(size != 1&& size != 2 && size != 4 && size != 8) conditions were
turned into (size & (1 | 2 | 4 | 8) == 0), which is a little
different. I see it’s all completely changed (and presumably fixed) in
git. Is a new release forthcoming?