insn-attrtab now takes forever to compile

[Jeffrey A Law]

  In message < 19991017124115Q.mitchell@codesourcery.com >you write:
  > 
  > Some recent change has caused insn-attrtab to take over 9 minutes to
  > compile on my PPro-200 system in stage-2; it used to take a matter of
  > seconds.  (I write this as we pass nine minutes; I don't know how much
  > longer the compilation will take.)
  > 
  > Memory usage looks to go as high as 109M or so, and then drop as low
  > as 19M.  I've checked; we're not thrashing, this is real CPU time.
  > 
  > Are Jeff's recent scheduler changes likely to be the cause of this
  > slowdown, or are there other forces at work?
New ia32 backend is the culprit.
 

jeff