cse.c crash bounds overwrite by recent patch

[Jeffrey A Law]

  In message < 199810061720.SAA04251@phal.cygnus.co.uk >you write:
  > > # Incrementing an array pointer of an alloca()'ed array seems a little
  > > # funky to me, but sometimes you've gotta do what you've gotta do.
  > 
  > Oops - I didn't mean to do that.
  > Strange that this incorrect code actually seemed to fix what it was suppose
  > d
  > to fix and didn't show any problems in a number of bootstrap and torture
  > tests.
  > 
  > Tue Oct  6 18:12:05 1998  J"orn Rennecke <amylaar@cygnus.co.uk>
  > 
  > 	* cse.c (insert_regs): Fix bug in Sep 24 change.
Looks good to me.
jeff