* predict.c (always_optimize_for_size_p): New function.
	(optimize_bb_for_size_p, optimize_bb_for_speed_p,
	optimize_edge_for_size_p, optimize_edge_for_speed_p,
	optimize_insn_for_size_p, optimize_insn_for_speed_p): New global
	functions.
	(rtl_profile_for_bb, rtl_profile_for_edge, rtl_default_profile): New.
	* function.c (prepare_function_start): Set default profile.
	* function.h (rtl_data): Add maybe_hot_insn_p.
	* cfgexpand.c (expand_gimple_basic_block): Set RTL profile.
	(construct_exit_block): Likewise.
	(tree_expand_cfg): Likewise.
	* basic-block.h
	(optimize_bb_for_size_p, optimize_bb_for_speed_p,
	optimize_edge_for_size_p, optimize_edge_for_speed_p,
	optimize_insn_for_size_p, optimize_insn_for_speed_p): Declare.
	(rtl_profile_for_bb, rtl_profile_for_edge, default_rtl_profile):
	Declare.

From-SVN: r138237