2013-11-22  Richard Biener  <rguenther@suse.de>

	Revert
	2013-11-21  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-ch.c (copy_loop_headers): Decrement
	nb_iterations_upper_bound by one.

        * gcc.dg/torture/20131122-0.c: New testcase.

From-SVN: r205256