* cfgloop.c (record_niter_bound): Record likely upper bounds.
	(likely_max_stmt_executions_int, get_likely_max_loop_iterations,
	get_likely_max_loop_iterations_int): New.
	* cfgloop.h (struct loop): Add nb_iterations_likely_upper_bound,
	any_likely_upper_bound.
	(get_likely_max_loop_iterations_int, get_likely_max_loop_iterations):
	Declare.
	* cfgloopmanip.c (copy_loop_info): Copy likely upper bounds.
	* loop-unroll.c (unroll_loop_constant_iterations): Update likely
	upper bound.
	(unroll_loop_constant_iterations): Likewise.
	(unroll_loop_runtime_iterations): Likewise.
	* lto-streamer-in.c (input_cfg): Stream likely upper bounds.
	* lto-streamer-out.c (output_cfg): Likewise.
	* tree-ssa-loop-ivcanon.c (try_peel_loop): Update likely upper
	bounds.
	(canonicalize_loop_induction_variables): Dump likely upper bounds.
	* tree-ssa-loop-niter.c (record_estimate): Record likely upper bounds.
	(likely_max_loop_iterations): New.
	(likely_max_loop_iterations_int): New.
	(likely_max_stmt_executions): New.
	* tree-ssa-loop-niter.h (likely_max_loop_iterations,
	likely_max_loop_iterations_int, likely_max_stmt_executions_int,
	likely_max_stmt_executions): Declare.

From-SVN: r236816