Re: Java floating-point mess

[Stephen L Moshier <steve@moshier.net>]

Here are the external functions that real.o seems to reference:

  mode_class
  mode_bitsize

  warning
  extra_warnings
  fancy_abort
  _hex_value
  _sch_istable

The reference to mode_class could just be deleted because it occurs
only in a sanity test that is probably not vitally important.

mode_bitsize is used to determine the width of types such as SFmode
etc.  I think that this code originally just tested for the
machine_mode enum, and it could revert to that.  (If you want
DFmode to be 32 bits wide, or some such, you are already in
deep trouble.)  Alternatively the two functions that use mode_bitsize,
REAL_VALUE_FROM_INT and REAL_VALUE_FROM_UNSIGNED_INT, might be removed to
a separate source file if you don't need them in java.

The other external references, fancy_abort, etc., do not look like they
are specific to the back end though I didn't check to see if they
are present in java.   _hex_value and _sch_istable were not used and
could be eliminated by reverting to an earlier version of the code.