2008-08-01  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-pre.c (fini_pre): Take in_fre parameter.  Free
	loop information only if we initialized it.
	(execute_pre): Call fini_pre with in_fre.
	* tree-ssa-loop-ivcanon (try_unroll_loop_completely): Dump
	if we do not unroll because we hit max-completely-peeled-insns.
	Use our estimation for consistency, do allow shrinking.

From-SVN: r138522