2000-09-28  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
	* doloop.c (doloop_modify): Prevent delete_insn() from
	deleting too much.  Prefer loop->top over loop->start as
	target for the new JUMP insn.
	(doloop_valid_p): Ignore loop with exit_count != 0.

From-SVN: r36661