[Bug java/27025] ICE on simple initializer

["aph at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #6 from aph at gcc dot gnu dot org  2006-04-05 14:12 -------
As far as I can see this bug is in every version of gcj that has ever existed.

There is special code (in merge_string_cste()) to convert an integer constant
to a constant string for concatenation.  However, there isn't any code to
convert a floating-point constant to  a constant string.

It would be fairly simple to call real_to_decimal() on the floating-point
number, but that function doesn't do Java-style floating-point formatting.  We
could add full Java-style floating-point output conversion to gcj, but I don't
think it would be worth the effort.

My proposed fix, although technically imperfect, cures 99% of the cases we are
ever likely to encounter.  It fails to fix weird cases like:

   switch(x) { case 0: break;
     case ("foo" + 2) == "foo2": break;
   }


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27025