ATTRIBUTE_NORETURN on sets_cc0_p

[Jeffrey A Law]

  In message < 199810150200.TAA14764@smtp.earthlink.net >you write:
  > 
  > On x86-linux-gnu (which defines HAVE_cc0), I'm seeing:
  > 
  > ../../gcc/jump.c: In function `sets_cc0_p':
  > ../../gcc/jump.c:3335: warning: function declared `noreturn' has a `return'
  >  statement
  > 
  > That's not good; this function does return and we don't want the
  > compiler assuming it doesn't.  That could be very dangerous.
  > 
  > I see that rtl.h has:
  > 
  > extern int sets_cc0_p			PROTO ((rtx))
  > #ifndef HAVE_cc0
  >   ATTRIBUTE_NORETURN
  > #endif
  >   ;
  > 
  > Perhaps HAVE_cc0 is not yet be set at that point?
That would be my guess.

Perhaps we should avoid trying to do this right now :-)

jeff