Important patch for 1.1.1

["Charles M. Hannum" <root at ihack dot net>]

The following change fixed a bug that caused at least two serious
problems in NetBSD:

1) It caused GNU malloc() to fail on the m68k.

2) It caused one of our Ethernet drivers to fail on the i386.

I'd appreciate it if this could be pulled up to the 1.1.1 branch.


                          CVS log for gcc/global.c
...
   1.13 Tue Sep 8 0:29:34 1998 by law
   CVS Tags: egcs_ss_19980914
   Diffs to 1.12
        * global.c: Update comments.
        (global_alloc): Assign allocation-numbers
        even for registers allocated by local_alloc in case
        they are later spilled and retry_global_alloc is called.
        (mark_reg_store, mark_reg_clobber,
        mark_reg_conflicts, mark_reg_death): Always record a
        conflict with a pseudo register even if it has been
        assigned to a hard register.
        (dump_conflicts): Don't list pseudo registers already assigned to
        a hard register as needing to be allocated, but do list their
        conflicts.
        * local-alloc.c: Update comment.