[PATCH 0/4] Fixed-point ABI fixes

[Tom Tromey]

This series fixes some ABI issues involving fixed-point types.

The patches weren't written by me -- I'm just submitting them.
They've been in use at AdaCore for a while, one of them since 2017,
with the last one being written in December 2020.

A fixed-point type is really just an integer with a special
interpretation.  I think targets should normally treat it like an
integer for ABI purposes.  A bit of care may be needed to ensure the
correct bits end up being passed, depending on how the
argument-passing code is written.

thanks,
Tom