Introduce IntegerRange for options (PR driver/79659).

Introduce IntegerRange for options (PR driver/79659).

2017-06-28  Martin Liska  <mliska@suse.cz>

	PR driver/79659
	* common.opt: Add IntegerRange to various options.
	* opt-functions.awk (integer_range_info): New function.
	* optc-gen.awk: Add integer_range_info to cl_options struct.
	* opts-common.c (decode_cmdline_option): Handle
	CL_ERR_INT_RANGE_ARG.
	(cmdline_handle_error): Likewise.
	* opts.c (print_filtered_help): Show valid interval in
	when --help is provided.
	* opts.h (struct cl_option): Add range_min and range_max fields.
	* config/i386/i386.opt: Add IntegerRange for -mbranch-cost.
2017-06-28  Martin Liska  <mliska@suse.cz>

	PR driver/79659
	* c.opt: Add IntegerRange to various options.
2017-06-28  Martin Liska  <mliska@suse.cz>

	PR driver/79659
	* g++.dg/opt/pr79659.C: New test.

From-SVN: r249734