Tree-SSA patches summary

[Jan Hubicka]

Hi,
since I happent to be too verbose last week, I made short summary of the
patches still relevant.  All of them were tested in the new strickier
scheme of always using i686-pc-gnu-linux and x86_64-linux.

Bugfixes
http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01908.html
   [tree-ssa] Proper saving of function bodies
http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01854.html
   [tree-ssa] Aliasing issues revisited

Minor improvements:
http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01864.html
  [tree-ssa] Avoid fold_stmt crash on return with no value
http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01884.html
  Re: Should -fcross-jumping be part of -O1?
http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01834.html
  [tree-ssa] do not produce useless copies

I am working on updated version of verify_ssa patch as it no longer
apply after Jeff's changes and will send once I am sure it does not
produce any positives in early passes.  I am holding all other changes
after these issues are resolved as they do depend on them.  (I do have
queue of 48 patches now, so I hope the contributions will be more smooth
now so I will exhaust it in foreseeable future)

Honza