Re: [PATCH+DOC] Print registers not saved in the frame as "", instead of "".

Mark Kettenis
2013-09-18T20:47:40Z

> Date: Wed, 18 Sep 2013 19:30:07 +0300
> From: Eli Zaretskii <eliz@gnu.org>
>
> Also, shouldn't we mention optimizations as (the main) reason for
> registers being unavailable?

I don't consider optimisations as an important cause of registers not
being saved. It is primarily a consequence of the fact that most ABIs
reserve some registers as "scratch" registers that don't need to be
saved.