IA64 bootstrap problem for Ada

[Richard Kenner]

    This is a somewhat new thing.  It isn't inconsistent.  It means the
    mode has 96 bits of value but takes up 16*BITS_PER_UNIT (128) bits of
    storage.  Think TYPE_SIZE versus TYPE_PRECISION.  BImode has been like
    this since its invention.  XFmode being like this is new.  Other modes
    are likely to take advantage of this in the future.

But you didn't answer my second (and more important) question: what
should TYPE_SIZE, TYPE_SIZE_UNIT, and TYPE_ALIGN be for such a thing?