TF type (quad float) not implemented?

[Jeffrey A Law]

  In message < 20000615072820.A13135@cygnus.com >you write:
  > On Thu, Jun 15, 2000 at 07:39:52PM +0900,
  > Dylan_S_Cuthbert@hq.scei.sony.co.jp wrote:
  > >
  > > Whilst trying to implement a TFtype using just the machine description I
  > > discovered that the TF type is documented but not actually implemented
  > > within the gcc main source.
  > 
  > Err.. what exactly lead you to this conclusion?  Several targets
  > make use of TFmode (alpha-osf5, sparc, sparc64).  However, not all
  > targets want to use TFmode, and so don't.
HPPA too, though we punt everything to libcalls since hardware traps if
you issue a quadword FP instruction.
jeff