[PATCH] Improve System z support and add some tuning

[Torbjorn Granlund]

Andreas Krebbel <krebbel at linux.vnet.ibm.com> writes:

  I can help with testing. I'm doing GCC, GDB, Binutils and Glibc tests
  on a daily base and libgmp can easily be added I think.
  
This would be useful, but not as a substitute for testing withing the
GMP project core.

  > This is a significant contribution, meaning that we need paperwork for
  > it: We need assignments from you, and copyright disclaimer from your
  > employer.
  
  Mmmh. I hoped that this qualifies as a bugfix. The gmp-mparam.h files
  are completely generated by the tune tool. So I don't have a copyright
  here anyway. longlong.h is part of the GCC project and I have the
  paperwork in place for that.
  
Your patch is well over the threshold for paperwork, I'm afraid,

  > I've seen your name around GNU for a long time, so perhaps you have
  > relevant paperwork already in place?
  
  I've a copyright assignment to the FSF in place which covers GCC, GDB,
  Glibc, and Binutils work. Extending this will be difficult and will
  take months at least.
  
Please start it now if ether (1) you plan no further changes, or (2) you
will do the assign-future vcariety of the paperwork.  If you plan
furtther changes, and do not want to to assign-future, then it is better
to wait.

The process is started by mailing assign at gnu org.

I think we really ought to do some assembly loops for s390x too.  If you
woiuld like to get involved with that, assign-future paperwork would be
convenient.

-- 
Torbjörn