vax optimization breakage?

[Jeffrey A Law]

  In message < 20000723181116.E17424@pobox.com >you write:
  > 
  > --3Pql8miugIZX0722
  > Content-Type: text/plain; charset=us-ascii
  > 
  > On Sun, Jul 23, 2000 at 04:14:52PM -0600, Jeffrey A Law wrote:
  > 
  > > I think the return insn was inserted into the wrong place.  It really
  > > shouldn't have been inserted inside the loop notes, but instead should
  > > have been placed after the LOOP_END note.
  > > 
  > > 
  > > What do the .rtl and .jump rtl dumps look like?
  > 
  > attached.
Thanks.  The problem is the jump optimizer is turning jump_insn 16 into
a RETURN.

You should try debugging jump.c to see when that happens.  You might start
by seeing if redirect_jump or redirect_exp is the culprit.
  

jeff