Support profile (BB counts and edge probabilities) in GIMPLE FE.

Support profile (BB counts and edge probabilities) in GIMPLE FE.

2019-05-09  Martin Liska  <mliska@suse.cz>

	* tree-cfg.c (dump_function_to_file): Dump entry BB count.
	* gimple-pretty-print.c (dump_gimple_bb_header):
	Dump BB count.
	(pp_cfg_jump): Dump edge probability.
	* profile-count.c (profile_quality_as_string): Simplify
	with a static array.
	(parse_profile_quality): New function.
	(profile_count::dump): Simplify with a static array.
	(profile_count::from_gcov_type): Add new argument.
	* profile-count.h (parse_profile_quality): Likewise.
	* predict.h (set_hot_bb_threshold): New.
	* params.def (PARAM_GIMPLE_FE_COMPUTED_HOT_BB_THRESHOLD):
	New param.
	* predict.c (get_hot_bb_threshold): Set from the new param.
	(set_hot_bb_threshold): New.
2019-05-09  Martin Liska  <mliska@suse.cz>

	* gimple-parser.c (struct gimple_parser): Add probability.
	for gimple_parser_edge.
	(gimple_parser::push_edge): Add new argument probability.
	(c_parser_gimple_parse_bb_spec): Parse also probability
	if present.
	(c_parser_parse_gimple_body): Set edge probability.
	(c_parser_gimple_compound_statement): Consume token
	before calling c_parser_gimple_goto_stmt.
	Parse BB counts.
	(c_parser_gimple_statement): Pass new argument.
	(c_parser_gimple_goto_stmt): Likewise.
	(c_parser_gimple_if_stmt): Likewise.
	(c_parser_gimple_or_rtl_pass_list): Parse hot_bb_threshold.
	* c-parser.c (c_parser_declaration_or_fndef): Pass
	hot_bb_threshold argument.
	* c-tree.h (struct c_declspecs): Add hot_bb_threshold
	field.
	(c_parser_gimple_parse_bb_spec_edge_probability): New.
2019-05-09  Martin Liska  <mliska@suse.cz>

	* gcc.dg/gimplefe-37.c: New test.
	* gcc.dg/gimplefe-33.c: Likewise.

From-SVN: r271034