[RFA:] reorg.c: fix target/7042 for main trunk

[law@redhat.com]

In message <Pine.BSF.4.30.0206161700320.96786-100000@dair.pair.com>, Hans-Peter
 Nilsson writes:
 > (Replying mostly to correct the subject; it's PR 7042 not 7041.
 > I fixed that before committing.)
 > 
 > On Sun, 16 Jun 2002 law@redhat.com wrote:
 > 
 > >  In message <200206161912.VAA09230@ignucius.axis.se>, Hans-Peter Nilsson
 > > writes:
 > >  > Not to paper over a bug, but yes, it's generally the preferred
 > >  > solution.  (Please keep in mind that the CRIS port predates
 > >  > prologue-and-epilogue as RTL.)
 > > Really?  Prologue/epilouge as RTL has been around for more than a decade
 > > now.
 > 
 > Really.  Grep says there were no epilogue or prologue patterns
 > in gcc 2.1.
Here's the change which added the ability to have prologues and epilogues
as RTL.  I was close -- that support wil be a decade old at the end of this
month.



Mon Jun 29 12:04:57 1992  Tom Wood  (wood@dg-rtp.dg.com)

        * toplev.c (rest_of_compilation): Thread the prologue and epilogue
        code immediately after reloading is done.
        * sched.c (schedule_insns): Reposition the prologue and epilogue
        notes as needed.
[ ...]
        * m88k.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE): Define.
        (DELAY_SLOTS_FOR_EPILOGUE, ELIGIBLE_FOR_EPILOGUE_DELAY): Delete.
        * m88k.md (prologue, epilogue, profiler, locate1, locate2): New
        patterns for representing prologues and epilogues.


I don't think the CRIS port existed back in 1992, or if it did, it
certainly wasn't in the public sources.

jeff