gcc/opth-gen.awk - gcc - Git at Google

 #  Copyright (C) 2003-2015 Free Software Foundation, Inc.
 #  Contributed by Kelley Cook, June 2004.
 #  Original code from Neil Booth, May 2003.
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the
 # Free Software Foundation; either version 3, or (at your option) any
 # later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.

 # This Awk script reads in the option records generated from
 # opt-gather.awk, combines the flags of duplicate options and generates a
 # C header file.
 #
 # This program uses functions from opt-functions.awk and code from
 # opt-read.awk.
 # Usage: awk -f opt-functions.awk -f opt-read.awk -f opth-gen.awk \
 #            < inputfile > options.h

 # Dump out an enumeration into a .h file.
 # Combine the flags of duplicate options.
 END {
 print "/* This file is auto-generated by opth-gen.awk.  */"
 print ""
 print "#ifndef OPTIONS_H"
 print "#define OPTIONS_H"
 print ""
 print "#include \"flag-types.h\""
 print ""

 if (n_extra_h_includes > 0) {
 	for (i = 0; i < n_extra_h_includes; i++) {
 		print "#include " quote extra_h_includes[i] quote
 	}
 	print ""
 }

 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
 print "#ifndef GENERATOR_FILE"
 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
 print "struct GTY(()) gcc_options"
 print "#else"
 print "struct gcc_options"
 print "#endif"
 print "{"
 print "#endif"

 for (i = 0; i < n_extra_vars; i++) {
 	var = extra_vars[i]
 	sub(" *=.*", "", var)
 	orig_var = var
 	name = var
 	type = var
 	type_after = var
 	sub("^.*[ *]", "", name)
 	sub("\\[.*\\]$", "", name)
 	sub("\\[.*\\]$", "", type)
 	sub(" *" name "$", "", type)
 	sub("^.*" name, "", type_after)
 	var_seen[name] = 1
 	print "#ifdef GENERATOR_FILE"
 	print "extern " orig_var ";"
 	print "#else"
 	print "  " type " x_" name type_after ";"
 	print "#define " name " global_options.x_" name
 	print "#endif"
 }

 for (i = 0; i < n_opts; i++) {
 	if (flag_set_p("Save", flags[i]))
 		have_save = 1;

 	name = var_name(flags[i]);
 	if (name == "")
 		continue;

 	if (name in var_seen)
 		continue;

 	var_seen[name] = 1;
 	print "#ifdef GENERATOR_FILE"
 	print "extern " var_type(flags[i]) name ";"
 	print "#else"
 	print "  " var_type(flags[i]) "x_" name ";"
 	print "#define " name " global_options.x_" name
 	print "#endif"
 }
 for (i = 0; i < n_opts; i++) {
 	name = static_var(opts[i], flags[i]);
 	if (name != "") {
 		print "#ifndef GENERATOR_FILE"
 		print "  " var_type(flags[i]) "x_" name ";"
 		print "#define x_" name " do_not_use"
 		print "#endif"
 	}
 }
 for (i = 0; i < n_opts; i++) {
 	if (flag_set_p("SetByCombined", flags[i])) {
 		print "#ifndef GENERATOR_FILE"
 		print "  bool frontend_set_" var_name(flags[i]) ";"
 		print "#endif"
 	}
 }
 print "#ifndef GENERATOR_FILE"
 print "};"
 print "extern struct gcc_options global_options;"
 print "extern const struct gcc_options global_options_init;"
 print "extern struct gcc_options global_options_set;"
 print "#define target_flags_explicit global_options_set.x_target_flags"
 print "#endif"
 print "#endif"
 print ""

 # All of the optimization switches gathered together so they can be saved and restored.
 # This will allow attribute((cold)) to turn on space optimization.

 # Change the type of normal switches from int to unsigned char to save space.
 # Also, order the structure so that pointer fields occur first, then int
 # fields, and then char fields to provide the best packing.

 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
 print ""
 print "/* Structure to save/restore optimization and target specific options.  */";
 print "struct GTY(()) cl_optimization";
 print "{";

 n_opt_char = 3;
 n_opt_short = 0;
 n_opt_int = 0;
 n_opt_enum = 0;
 n_opt_other = 0;
 var_opt_char[0] = "unsigned char x_optimize";
 var_opt_char[1] = "unsigned char x_optimize_size";
 var_opt_char[2] = "unsigned char x_optimize_debug";

 for (i = 0; i < n_opts; i++) {
 	if (flag_set_p("Optimization", flags[i])) {
 		name = var_name(flags[i])
 		if(name == "")
 			continue;

 		if(name in var_opt_seen)
 			continue;

 		var_opt_seen[name]++;
 		otype = var_type_struct(flags[i]);
 		if (otype ~ "^((un)?signed +)?int *$")
 			var_opt_int[n_opt_int++] = otype "x_" name;

 		else if (otype ~ "^((un)?signed +)?short *$")
 			var_opt_short[n_opt_short++] = otype "x_" name;

 		else if (otype ~ "^((un)?signed +)?char *$")
 			var_opt_char[n_opt_char++] = otype "x_" name;

 		else if (otype ~ ("^enum +[_" alnum "]+ *$"))
 			var_opt_enum[n_opt_enum++] = otype "x_" name;

 		else
 			var_opt_other[n_opt_other++] = otype "x_" name;
 	}
 }

 for (i = 0; i < n_opt_other; i++) {
 	print "  " var_opt_other[i] ";";
 }

 for (i = 0; i < n_opt_int; i++) {
 	print "  " var_opt_int[i] ";";
 }

 for (i = 0; i < n_opt_enum; i++) {
 	print "  " var_opt_enum[i] ";";
 }

 for (i = 0; i < n_opt_short; i++) {
 	print "  " var_opt_short[i] ";";
 }

 for (i = 0; i < n_opt_char; i++) {
 	print "  " var_opt_char[i] ";";
 }

 print "};";
 print "";

 # Target and optimization save/restore/print functions.
 print "/* Structure to save/restore selected target specific options.  */";
 print "struct GTY(()) cl_target_option";
 print "{";

 n_target_char = 0;
 n_target_short = 0;
 n_target_int = 0;
 n_target_enum = 0;
 n_target_other = 0;

 for (i = 0; i < n_target_save; i++) {
 	if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
 		var_target_int[n_target_int++] = target_save_decl[i];

 	else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
 		var_target_short[n_target_short++] = target_save_decl[i];

 	else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
 		var_target_char[n_target_char++] = target_save_decl[i];

 	else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
 		var_target_enum[n_target_enum++] = target_save_decl[i];
 	}
 	else
 		var_target_other[n_target_other++] = target_save_decl[i];
 }

 if (have_save) {
 	for (i = 0; i < n_opts; i++) {
 		if (flag_set_p("Save", flags[i])) {
 			name = var_name(flags[i])
 			if(name == "")
 				name = "target_flags";

 			if(name in var_save_seen)
 				continue;

 			var_save_seen[name]++;
 			otype = var_type_struct(flags[i])
 			if (otype ~ "^((un)?signed +)?int *$")
 				var_target_int[n_target_int++] = otype "x_" name;

 			else if (otype ~ "^((un)?signed +)?short *$")
 				var_target_short[n_target_short++] = otype "x_" name;

 			else if (otype ~ "^((un)?signed +)?char *$")
 				var_target_char[n_target_char++] = otype "x_" name;

 			else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
 				var_target_enum[n_target_enum++] = otype "x_" name;

 			else
 				var_target_other[n_target_other++] = otype "x_" name;
 		}
 	}
 } else {
 	var_target_int[n_target_int++] = "int x_target_flags";
 }

 for (i = 0; i < n_target_other; i++) {
 	print "  " var_target_other[i] ";";
 }

 for (i = 0; i < n_target_enum; i++) {
 	print "  " var_target_enum[i] ";";
 }

 for (i = 0; i < n_target_int; i++) {
 	print "  " var_target_int[i] ";";
 }

 for (i = 0; i < n_target_short; i++) {
 	print "  " var_target_short[i] ";";
 }

 for (i = 0; i < n_target_char; i++) {
 	print "  " var_target_char[i] ";";
 }

 print "};";
 print "";
 print "";
 print "/* Save optimization variables into a structure.  */"
 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
 print "";
 print "/* Restore optimization variables from a structure.  */";
 print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
 print "";
 print "/* Print optimization variables from a structure.  */";
 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
 print "";
 print "/* Print different optimization variables from structures provided as arguments.  */";
 print "extern void cl_optimization_print_diff (FILE *, int, cl_optimization *ptr1, cl_optimization *ptr2);";
 print "";
 print "/* Save selected option variables into a structure.  */"
 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
 print "";
 print "/* Restore selected option variables from a structure.  */"
 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
 print "";
 print "/* Print target option variables from a structure.  */";
 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
 print "";
 print "/* Print different target option variables from structures provided as arguments.  */";
 print "extern void cl_target_option_print_diff (FILE *, int, cl_target_option *ptr1, cl_target_option *ptr2);";
 print "";
 print "/* Compare two target option variables from a structure.  */";
 print "extern bool cl_target_option_eq (const struct cl_target_option *, const struct cl_target_option *);";
 print "";
 print "/* Hash option variables from a structure.  */";
 print "extern hashval_t cl_target_option_hash (const struct cl_target_option *);";
 print "";
 print "/* Hash optimization from a structure.  */";
 print "extern hashval_t cl_optimization_hash (const struct cl_optimization *);";
 print "";
 print "/* Anything that includes tm.h, does not necessarily need this.  */"
 print "#if !defined(GCC_TM_H)"
 print "#include \"input.h\" /* for location_t */"
 print "bool                                                                  "
 print "common_handle_option_auto (struct gcc_options *opts,                  "
 print "                           struct gcc_options *opts_set,              "
 print "                           const struct cl_decoded_option *decoded,   "
 print "                           unsigned int lang_mask, int kind,          "
 print "                           location_t loc,                            "
 print "                           const struct cl_option_handlers *handlers, "
 print "                           diagnostic_context *dc);                   "
 for (i = 0; i < n_langs; i++) {
     lang_name = lang_sanitized_name(langs[i]);
     print "bool                                                                  "
     print lang_name "_handle_option_auto (struct gcc_options *opts,              "
     print "                           struct gcc_options *opts_set,              "
     print "                           size_t scode, const char *arg, int value,  "
     print "                           unsigned int lang_mask, int kind,          "
     print "                           location_t loc,                            "
     print "                           const struct cl_option_handlers *handlers, "
     print "                           diagnostic_context *dc);                   "
 }
 print "void cpp_handle_option_auto (const struct gcc_options * opts, size_t scode,"
 print "                             struct cpp_options * cpp_opts);"
 print "void init_global_opts_from_cpp(struct gcc_options * opts,      "
 print "                               const struct cpp_options * cpp_opts);"
 print "#endif";
 print "#endif";
 print "";

 for (i = 0; i < n_opts; i++) {
 	name = opt_args("Mask", flags[i])
 	if (name == "") {
 		opt = opt_args("InverseMask", flags[i])
 		if (opt ~ ",")
 			name = nth_arg(0, opt)
 		else
 			name = opt
 	}
 	if (name != "" && mask_bits[name] == 0) {
 		mask_bits[name] = 1
 		vname = var_name(flags[i])
 		mask = "MASK_"
 		mask_1 = "1"
 		if (vname != "") {
 			mask = "OPTION_MASK_"
 			if (host_wide_int[vname] == "yes")
 				mask_1 = "HOST_WIDE_INT_1"
 		} else
 			extra_mask_bits[name] = 1
 		print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")"
 	}
 }
 for (i = 0; i < n_extra_masks; i++) {
 	if (extra_mask_bits[extra_masks[i]] == 0)
 		print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
 }

 for (var in masknum) {
 	if (var != "" && host_wide_int[var] == "yes") {
 		print" #if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " >= HOST_BITS_PER_WIDE_INT"
 		print "#error too many masks for " var
 		print "#endif"
 	}
 	else if (masknum[var] > 31) {
 		if (var == "")
 			print "#error too many target masks"
 		else
 			print "#error too many masks for " var
 	}
 }
 print ""

 for (i = 0; i < n_opts; i++) {
 	name = opt_args("Mask", flags[i])
 	if (name == "") {
 		opt = opt_args("InverseMask", flags[i])
 		if (opt ~ ",")
 			name = nth_arg(0, opt)
 		else
 			name = opt
 	}
 	if (name != "" && mask_macros[name] == 0) {
 		mask_macros[name] = 1
 		vname = var_name(flags[i])
 		mask = "OPTION_MASK_"
 		if (vname == "") {
 			vname = "target_flags"
 			mask = "MASK_"
 			extra_mask_macros[name] = 1
 		}
 		print "#define TARGET_" name \
 		      " ((" vname " & " mask name ") != 0)"
 		print "#define TARGET_" name "_P(" vname ")" \
 		      " ((" vname " & " mask name ") != 0)"
 	}
 }
 for (i = 0; i < n_extra_masks; i++) {
 	if (extra_mask_macros[extra_masks[i]] == 0)
 		print "#define TARGET_" extra_masks[i] \
 		      " ((target_flags & MASK_" extra_masks[i] ") != 0)"
 }
 print ""

 for (i = 0; i < n_opts; i++) {
 	opt = opt_args("InverseMask", flags[i])
 	if (opt ~ ",") {
 		vname = var_name(flags[i])
 		mask = "OPTION_MASK_"
 		if (vname == "") {
 			vname = "target_flags"
 			mask = "MASK_"
 		}
 		print "#define TARGET_" nth_arg(1, opt) \
 		      " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
 	}
 }
 print ""

 for (i = 0; i < n_langs; i++) {
         macros[i] = "CL_" lang_sanitized_name(langs[i])
 	s = substr("            ", length (macros[i]))
 	print "#define " macros[i] s " (1U << " i ")"
     }
 print "#define CL_LANG_ALL   ((1U << " n_langs ") - 1)"

 print ""
 print "enum opt_code"
 print "{"

 for (i = 0; i < n_opts; i++)
 	back_chain[i] = "N_OPTS";

 enum_value = 0
 for (i = 0; i < n_opts; i++) {
 	# Combine the flags of identical switches.  Switches
 	# appear many times if they are handled by many front
 	# ends, for example.
 	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
 		flags[i + 1] = flags[i] " " flags[i + 1];
 		i++;
 	}

 	len = length (opts[i]);
 	enum = opt_enum(opts[i])
 	enum_string = enum " = " enum_value ","

 	# Aliases do not get enumeration names.
 	if ((flag_set_p("Alias.*", flags[i]) \
 	     && !flag_set_p("SeparateAlias", flags[i])) \
 	    || flag_set_p("Ignore", flags[i])) {
 		enum_string = "/* " enum_string " */"
 	}

 	# If this switch takes joined arguments, back-chain all
 	# subsequent switches to it for which it is a prefix.  If
 	# a later switch S is a longer prefix of a switch T, T
 	# will be back-chained to S in a later iteration of this
 	# for() loop, which is what we want.
 	if (flag_set_p("Joined.*", flags[i])) {
 		for (j = i + 1; j < n_opts; j++) {
 			if (substr (opts[j], 1, len) != opts[i])
 				break;
 			back_chain[j] = enum;
 		}
 	}

 	s = substr("                                          ",
 		   length (enum_string))

 	if (help[i] == "")
 		hlp = "0"
 	else
 		hlp = "N_(\"" help[i] "\")";

 	print "  " enum_string s "/* -" opts[i] " */"
 	enum_value++
 }

 print "  N_OPTS,"
 print "  OPT_SPECIAL_unknown,"
 print "  OPT_SPECIAL_ignore,"
 print "  OPT_SPECIAL_program_name,"
 print "  OPT_SPECIAL_input_file"
 print "};"
 print ""
 print "#ifdef GCC_C_COMMON_C"
 print "/* Mapping from cpp message reasons to the options that enable them.  */"
 print "#include <cpplib.h>"
 print "struct cpp_reason_option_codes_t"
 print "{"
 print "  const int reason;		/* cpplib message reason.  */"
 print "  const int option_code;	/* gcc option that controls this message.  */"
 print "};"
 print ""
 print "static const struct cpp_reason_option_codes_t cpp_reason_option_codes[] = {"
 for (i = 0; i < n_opts; i++) {
     # With identical flags, pick only the last one.  The
     # earlier loop ensured that it has all flags merged,
     # and a nonempty help text if one of the texts was nonempty.
     while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
         i++;
     }
     cpp_reason = nth_arg(0, opt_args("CppReason", flags[i]));
     if (cpp_reason != "") {
         cpp_reason = cpp_reason ",";
         printf("  {%-40s %s},\n", cpp_reason, opt_enum(opts[i]))
     }
 }
 printf("  {%-40s 0},\n", "CPP_W_NONE,")
 print "};"
 print "#endif"
 print ""
 print "#endif /* OPTIONS_H */"
 }
	# Copyright (C) 2003-2015 Free Software Foundation, Inc.
	# Contributed by Kelley Cook, June 2004.
	# Original code from Neil Booth, May 2003.
	#
	# This program is free software; you can redistribute it and/or modify it
	# under the terms of the GNU General Public License as published by the
	# Free Software Foundation; either version 3, or (at your option) any
	# later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program; see the file COPYING3. If not see
	# <http://www.gnu.org/licenses/>.

	# This Awk script reads in the option records generated from
	# opt-gather.awk, combines the flags of duplicate options and generates a
	# C header file.
	#
	# This program uses functions from opt-functions.awk and code from
	# opt-read.awk.
	# Usage: awk -f opt-functions.awk -f opt-read.awk -f opth-gen.awk \
	# < inputfile > options.h

	# Dump out an enumeration into a .h file.
	# Combine the flags of duplicate options.
	END {
	print "/* This file is auto-generated by opth-gen.awk. */"
	print ""
	print "#ifndef OPTIONS_H"
	print "#define OPTIONS_H"
	print ""
	print "#include \"flag-types.h\""
	print ""

	if (n_extra_h_includes > 0) {
	for (i = 0; i < n_extra_h_includes; i++) {
	print "#include " quote extra_h_includes[i] quote
	}
	print ""
	}

	print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
	print "#ifndef GENERATOR_FILE"
	print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
	print "struct GTY(()) gcc_options"
	print "#else"
	print "struct gcc_options"
	print "#endif"
	print "{"
	print "#endif"

	for (i = 0; i < n_extra_vars; i++) {
	var = extra_vars[i]
	sub(" =.", "", var)
	orig_var = var
	name = var
	type = var
	type_after = var
	sub("^.[ ]", "", name)
	sub("\\[.*\\]$", "", name)
	sub("\\[.*\\]$", "", type)
	sub(" *" name "$", "", type)
	sub("^.*" name, "", type_after)
	var_seen[name] = 1
	print "#ifdef GENERATOR_FILE"
	print "extern " orig_var ";"
	print "#else"
	print " " type " x_" name type_after ";"
	print "#define " name " global_options.x_" name
	print "#endif"
	}

	for (i = 0; i < n_opts; i++) {
	if (flag_set_p("Save", flags[i]))
	have_save = 1;

	name = var_name(flags[i]);
	if (name == "")
	continue;

	if (name in var_seen)
	continue;

	var_seen[name] = 1;
	print "#ifdef GENERATOR_FILE"
	print "extern " var_type(flags[i]) name ";"
	print "#else"
	print " " var_type(flags[i]) "x_" name ";"
	print "#define " name " global_options.x_" name
	print "#endif"
	}
	for (i = 0; i < n_opts; i++) {
	name = static_var(opts[i], flags[i]);
	if (name != "") {
	print "#ifndef GENERATOR_FILE"
	print " " var_type(flags[i]) "x_" name ";"
	print "#define x_" name " do_not_use"
	print "#endif"
	}
	}
	for (i = 0; i < n_opts; i++) {
	if (flag_set_p("SetByCombined", flags[i])) {
	print "#ifndef GENERATOR_FILE"
	print " bool frontend_set_" var_name(flags[i]) ";"
	print "#endif"
	}
	}
	print "#ifndef GENERATOR_FILE"
	print "};"
	print "extern struct gcc_options global_options;"
	print "extern const struct gcc_options global_options_init;"
	print "extern struct gcc_options global_options_set;"
	print "#define target_flags_explicit global_options_set.x_target_flags"
	print "#endif"
	print "#endif"
	print ""

	# All of the optimization switches gathered together so they can be saved and restored.
	# This will allow attribute((cold)) to turn on space optimization.

	# Change the type of normal switches from int to unsigned char to save space.
	# Also, order the structure so that pointer fields occur first, then int
	# fields, and then char fields to provide the best packing.

	print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
	print ""
	print "/* Structure to save/restore optimization and target specific options. */";
	print "struct GTY(()) cl_optimization";
	print "{";

	n_opt_char = 3;
	n_opt_short = 0;
	n_opt_int = 0;
	n_opt_enum = 0;
	n_opt_other = 0;
	var_opt_char[0] = "unsigned char x_optimize";
	var_opt_char[1] = "unsigned char x_optimize_size";
	var_opt_char[2] = "unsigned char x_optimize_debug";

	for (i = 0; i < n_opts; i++) {
	if (flag_set_p("Optimization", flags[i])) {
	name = var_name(flags[i])
	if(name == "")
	continue;

	if(name in var_opt_seen)
	continue;

	var_opt_seen[name]++;
	otype = var_type_struct(flags[i]);
	if (otype ~ "^((un)?signed +)?int *$")
	var_opt_int[n_opt_int++] = otype "x_" name;

	else if (otype ~ "^((un)?signed +)?short *$")
	var_opt_short[n_opt_short++] = otype "x_" name;

	else if (otype ~ "^((un)?signed +)?char *$")
	var_opt_char[n_opt_char++] = otype "x_" name;

	else if (otype ~ ("^enum +[_" alnum "]+ *$"))
	var_opt_enum[n_opt_enum++] = otype "x_" name;

	else
	var_opt_other[n_opt_other++] = otype "x_" name;
	}
	}

	for (i = 0; i < n_opt_other; i++) {
	print " " var_opt_other[i] ";";
	}

	for (i = 0; i < n_opt_int; i++) {
	print " " var_opt_int[i] ";";
	}

	for (i = 0; i < n_opt_enum; i++) {
	print " " var_opt_enum[i] ";";
	}

	for (i = 0; i < n_opt_short; i++) {
	print " " var_opt_short[i] ";";
	}

	for (i = 0; i < n_opt_char; i++) {
	print " " var_opt_char[i] ";";
	}

	print "};";
	print "";

	# Target and optimization save/restore/print functions.
	print "/* Structure to save/restore selected target specific options. */";
	print "struct GTY(()) cl_target_option";
	print "{";

	n_target_char = 0;
	n_target_short = 0;
	n_target_int = 0;
	n_target_enum = 0;
	n_target_other = 0;

	for (i = 0; i < n_target_save; i++) {
	if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
	var_target_int[n_target_int++] = target_save_decl[i];

	else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
	var_target_short[n_target_short++] = target_save_decl[i];

	else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
	var_target_char[n_target_char++] = target_save_decl[i];

	else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
	var_target_enum[n_target_enum++] = target_save_decl[i];
	}
	else
	var_target_other[n_target_other++] = target_save_decl[i];
	}

	if (have_save) {
	for (i = 0; i < n_opts; i++) {
	if (flag_set_p("Save", flags[i])) {
	name = var_name(flags[i])
	if(name == "")
	name = "target_flags";

	if(name in var_save_seen)
	continue;

	var_save_seen[name]++;
	otype = var_type_struct(flags[i])
	if (otype ~ "^((un)?signed +)?int *$")
	var_target_int[n_target_int++] = otype "x_" name;

	else if (otype ~ "^((un)?signed +)?short *$")
	var_target_short[n_target_short++] = otype "x_" name;

	else if (otype ~ "^((un)?signed +)?char *$")
	var_target_char[n_target_char++] = otype "x_" name;

	else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
	var_target_enum[n_target_enum++] = otype "x_" name;

	else
	var_target_other[n_target_other++] = otype "x_" name;
	}
	}
	} else {
	var_target_int[n_target_int++] = "int x_target_flags";
	}

	for (i = 0; i < n_target_other; i++) {
	print " " var_target_other[i] ";";
	}

	for (i = 0; i < n_target_enum; i++) {
	print " " var_target_enum[i] ";";
	}

	for (i = 0; i < n_target_int; i++) {
	print " " var_target_int[i] ";";
	}

	for (i = 0; i < n_target_short; i++) {
	print " " var_target_short[i] ";";
	}

	for (i = 0; i < n_target_char; i++) {
	print " " var_target_char[i] ";";
	}

	print "};";
	print "";
	print "";
	print "/* Save optimization variables into a structure. */"
	print "extern void cl_optimization_save (struct cl_optimization , struct gcc_options );";
	print "";
	print "/* Restore optimization variables from a structure. */";
	print "extern void cl_optimization_restore (struct gcc_options , struct cl_optimization );";
	print "";
	print "/* Print optimization variables from a structure. */";
	print "extern void cl_optimization_print (FILE , int, struct cl_optimization );";
	print "";
	print "/* Print different optimization variables from structures provided as arguments. */";
	print "extern void cl_optimization_print_diff (FILE , int, cl_optimization ptr1, cl_optimization *ptr2);";
	print "";
	print "/* Save selected option variables into a structure. */"
	print "extern void cl_target_option_save (struct cl_target_option , struct gcc_options );";
	print "";
	print "/* Restore selected option variables from a structure. */"
	print "extern void cl_target_option_restore (struct gcc_options , struct cl_target_option );";
	print "";
	print "/* Print target option variables from a structure. */";
	print "extern void cl_target_option_print (FILE , int, struct cl_target_option );";
	print "";
	print "/* Print different target option variables from structures provided as arguments. */";
	print "extern void cl_target_option_print_diff (FILE , int, cl_target_option ptr1, cl_target_option *ptr2);";
	print "";
	print "/* Compare two target option variables from a structure. */";
	print "extern bool cl_target_option_eq (const struct cl_target_option , const struct cl_target_option );";
	print "";
	print "/* Hash option variables from a structure. */";
	print "extern hashval_t cl_target_option_hash (const struct cl_target_option *);";
	print "";
	print "/* Hash optimization from a structure. */";
	print "extern hashval_t cl_optimization_hash (const struct cl_optimization *);";
	print "";
	print "/* Anything that includes tm.h, does not necessarily need this. */"
	print "#if !defined(GCC_TM_H)"
	print "#include \"input.h\" /* for location_t */"
	print "bool "
	print "common_handle_option_auto (struct gcc_options *opts, "
	print " struct gcc_options *opts_set, "
	print " const struct cl_decoded_option *decoded, "
	print " unsigned int lang_mask, int kind, "
	print " location_t loc, "
	print " const struct cl_option_handlers *handlers, "
	print " diagnostic_context *dc); "
	for (i = 0; i < n_langs; i++) {
	lang_name = lang_sanitized_name(langs[i]);
	print "bool "
	print lang_name "_handle_option_auto (struct gcc_options *opts, "
	print " struct gcc_options *opts_set, "
	print " size_t scode, const char *arg, int value, "
	print " unsigned int lang_mask, int kind, "
	print " location_t loc, "
	print " const struct cl_option_handlers *handlers, "
	print " diagnostic_context *dc); "
	}
	print "void cpp_handle_option_auto (const struct gcc_options * opts, size_t scode,"
	print " struct cpp_options * cpp_opts);"
	print "void init_global_opts_from_cpp(struct gcc_options * opts, "
	print " const struct cpp_options * cpp_opts);"
	print "#endif";
	print "#endif";
	print "";

	for (i = 0; i < n_opts; i++) {
	name = opt_args("Mask", flags[i])
	if (name == "") {
	opt = opt_args("InverseMask", flags[i])
	if (opt ~ ",")
	name = nth_arg(0, opt)
	else
	name = opt
	}
	if (name != "" && mask_bits[name] == 0) {
	mask_bits[name] = 1
	vname = var_name(flags[i])
	mask = "MASK_"
	mask_1 = "1"
	if (vname != "") {
	mask = "OPTION_MASK_"
	if (host_wide_int[vname] == "yes")
	mask_1 = "HOST_WIDE_INT_1"
	} else
	extra_mask_bits[name] = 1
	print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")"
	}
	}
	for (i = 0; i < n_extra_masks; i++) {
	if (extra_mask_bits[extra_masks[i]] == 0)
	print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
	}

	for (var in masknum) {
	if (var != "" && host_wide_int[var] == "yes") {
	print" #if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " >= HOST_BITS_PER_WIDE_INT"
	print "#error too many masks for " var
	print "#endif"
	}
	else if (masknum[var] > 31) {
	if (var == "")
	print "#error too many target masks"
	else
	print "#error too many masks for " var
	}
	}
	print ""

	for (i = 0; i < n_opts; i++) {
	name = opt_args("Mask", flags[i])
	if (name == "") {
	opt = opt_args("InverseMask", flags[i])
	if (opt ~ ",")
	name = nth_arg(0, opt)
	else
	name = opt
	}
	if (name != "" && mask_macros[name] == 0) {
	mask_macros[name] = 1
	vname = var_name(flags[i])
	mask = "OPTION_MASK_"
	if (vname == "") {
	vname = "target_flags"
	mask = "MASK_"
	extra_mask_macros[name] = 1
	}
	print "#define TARGET_" name \
	" ((" vname " & " mask name ") != 0)"
	print "#define TARGET_" name "_P(" vname ")" \
	" ((" vname " & " mask name ") != 0)"
	}
	}
	for (i = 0; i < n_extra_masks; i++) {
	if (extra_mask_macros[extra_masks[i]] == 0)
	print "#define TARGET_" extra_masks[i] \
	" ((target_flags & MASK_" extra_masks[i] ") != 0)"
	}
	print ""

	for (i = 0; i < n_opts; i++) {
	opt = opt_args("InverseMask", flags[i])
	if (opt ~ ",") {
	vname = var_name(flags[i])
	mask = "OPTION_MASK_"
	if (vname == "") {
	vname = "target_flags"
	mask = "MASK_"
	}
	print "#define TARGET_" nth_arg(1, opt) \
	" ((" vname " & " mask nth_arg(0, opt) ") == 0)"
	}
	}
	print ""

	for (i = 0; i < n_langs; i++) {
	macros[i] = "CL_" lang_sanitized_name(langs[i])
	s = substr(" ", length (macros[i]))
	print "#define " macros[i] s " (1U << " i ")"
	}
	print "#define CL_LANG_ALL ((1U << " n_langs ") - 1)"

	print ""
	print "enum opt_code"
	print "{"

	for (i = 0; i < n_opts; i++)
	back_chain[i] = "N_OPTS";

	enum_value = 0
	for (i = 0; i < n_opts; i++) {
	# Combine the flags of identical switches. Switches
	# appear many times if they are handled by many front
	# ends, for example.
	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
	flags[i + 1] = flags[i] " " flags[i + 1];
	i++;
	}

	len = length (opts[i]);
	enum = opt_enum(opts[i])
	enum_string = enum " = " enum_value ","

	# Aliases do not get enumeration names.
	if ((flag_set_p("Alias.*", flags[i]) \
	&& !flag_set_p("SeparateAlias", flags[i])) \
	\|\| flag_set_p("Ignore", flags[i])) {
	enum_string = "/* " enum_string " */"
	}

	# If this switch takes joined arguments, back-chain all
	# subsequent switches to it for which it is a prefix. If
	# a later switch S is a longer prefix of a switch T, T
	# will be back-chained to S in a later iteration of this
	# for() loop, which is what we want.
	if (flag_set_p("Joined.*", flags[i])) {
	for (j = i + 1; j < n_opts; j++) {
	if (substr (opts[j], 1, len) != opts[i])
	break;
	back_chain[j] = enum;
	}
	}

	s = substr(" ",
	length (enum_string))

	if (help[i] == "")
	hlp = "0"
	else
	hlp = "N_(\"" help[i] "\")";

	print " " enum_string s "/* -" opts[i] " */"
	enum_value++
	}

	print " N_OPTS,"
	print " OPT_SPECIAL_unknown,"
	print " OPT_SPECIAL_ignore,"
	print " OPT_SPECIAL_program_name,"
	print " OPT_SPECIAL_input_file"
	print "};"
	print ""
	print "#ifdef GCC_C_COMMON_C"
	print "/* Mapping from cpp message reasons to the options that enable them. */"
	print "#include <cpplib.h>"
	print "struct cpp_reason_option_codes_t"
	print "{"
	print " const int reason; /* cpplib message reason. */"
	print " const int option_code; /* gcc option that controls this message. */"
	print "};"
	print ""
	print "static const struct cpp_reason_option_codes_t cpp_reason_option_codes[] = {"
	for (i = 0; i < n_opts; i++) {
	# With identical flags, pick only the last one. The
	# earlier loop ensured that it has all flags merged,
	# and a nonempty help text if one of the texts was nonempty.
	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
	i++;
	}
	cpp_reason = nth_arg(0, opt_args("CppReason", flags[i]));
	if (cpp_reason != "") {
	cpp_reason = cpp_reason ",";
	printf(" {%-40s %s},\n", cpp_reason, opt_enum(opts[i]))
	}
	}
	printf(" {%-40s 0},\n", "CPP_W_NONE,")
	print "};"
	print "#endif"
	print ""
	print "#endif /* OPTIONS_H */"
	}