vax optimization breakage?

[Jeffrey A Law]

  In message < 20000727015020.A26441@cygnus.com >you write:
  > On Sun, Jul 23, 2000 at 06:00:33PM -0600, Jeffrey A Law wrote:
  > > Thanks.  The problem is the jump optimizer is turning jump_insn 16 into
  > > a RETURN.
  > 
  > No, that's all kosher.  jump is allowed to make that transformation
  > any time HAVE_return is true.  Which for VAX is always.
  > 
  > The problem is that the LOOP_END note somehow fell below the
  > return insn.  This happens in .01.sibling, so presumably it
  > happened when running find_basic_blocks.  Anyway, the result
  > is that loop emits the cleanup code after the return, which
  > of course gets removed as dead code.
I forgot about .01.sibling :-) 

jeff