1 # Copyright (C) 2003,2004,2005,2006,2007,2008, 2010
2 # Free Software Foundation, Inc.
3 # Contributed by Kelley Cook, June 2004.
4 # Original code from Neil Booth, May 2003.
6 # This program is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License as published by the
8 # Free Software Foundation; either version 3, or (at your option) any
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; see the file COPYING3. If not see
18 # <http://www.gnu.org/licenses/>.
20 # This Awk script reads in the option records generated from
21 # opt-gather.awk, combines the flags of duplicate options and generates a
24 # This program uses functions from opt-functions.awk
25 # Usage: awk -f opt-functions.awk -f opth-gen.awk < inputfile > options.h
36 # Collect the text and flags of each option into an array
38 if ($1 == "Language") {
42 else if ($1 == "TargetSave") {
43 # Make sure the declarations are put in source order
44 target_save_decl[n_target_save] = $2
47 else if ($1 == "Variable") {
48 extra_vars[n_extra_vars] = $2
52 name = opt_args("Mask", $1)
60 extra_masks[n_extra_masks++] = name
65 # Dump out an enumeration into a .h file.
66 # Combine the flags of duplicate options.
68 print "/* This file is auto-generated by opth-gen.awk. */"
70 print "#ifndef OPTIONS_H"
71 print "#define OPTIONS_H"
73 print "extern int target_flags_explicit;"
78 for (i = 0; i < n_extra_vars; i++) {
81 print "extern " var ";"
84 for (i = 0; i < n_opts; i++) {
85 if (flag_set_p("Save", flags[i]))
88 name = var_name(flags[i]);
96 print "extern " var_type(flags[i]) name ";"
100 # All of the optimization switches gathered together so they can be saved and restored.
101 # This will allow attribute((cold)) to turn on space optimization.
103 # Change the type of normal switches from int to unsigned char to save space.
104 # Also, order the structure so that pointer fields occur first, then int
105 # fields, and then char fields to provide the best packing.
107 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
109 print "/* Structure to save/restore optimization and target specific options. */";
110 print "struct GTY(()) cl_optimization";
117 var_opt_char[0] = "unsigned char optimize";
118 var_opt_char[1] = "unsigned char optimize_size";
120 for (i = 0; i < n_opts; i++) {
121 if (flag_set_p("Optimization", flags[i])) {
122 name = var_name(flags[i])
126 if(name in var_opt_seen)
129 var_opt_seen[name]++;
130 otype = var_type_struct(flags[i]);
131 if (otype ~ "^((un)?signed +)?int *$")
132 var_opt_int[n_opt_int++] = otype name;
134 else if (otype ~ "^((un)?signed +)?short *$")
135 var_opt_short[n_opt_short++] = otype name;
137 else if (otype ~ "^((un)?signed +)?char *$")
138 var_opt_char[n_opt_char++] = otype name;
141 var_opt_other[n_opt_other++] = otype name;
145 for (i = 0; i < n_opt_other; i++) {
146 print " " var_opt_other[i] ";";
149 for (i = 0; i < n_opt_int; i++) {
150 print " " var_opt_int[i] ";";
153 for (i = 0; i < n_opt_short; i++) {
154 print " " var_opt_short[i] ";";
157 for (i = 0; i < n_opt_char; i++) {
158 print " " var_opt_char[i] ";";
164 # Target and optimization save/restore/print functions.
165 print "/* Structure to save/restore selected target specific options. */";
166 print "struct GTY(()) cl_target_option";
174 for (i = 0; i < n_target_save; i++) {
175 if (target_save_decl[i] ~ "^((un)?signed +)?int +[_a-zA-Z0-9]+$")
176 var_target_int[n_target_int++] = target_save_decl[i];
178 else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_a-zA-Z0-9]+$")
179 var_target_short[n_target_short++] = target_save_decl[i];
181 else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_a-zA-Z0-9]+$")
182 var_target_char[n_target_char++] = target_save_decl[i];
185 var_target_other[n_target_other++] = target_save_decl[i];
189 for (i = 0; i < n_opts; i++) {
190 if (flag_set_p("Save", flags[i])) {
191 name = var_name(flags[i])
193 name = "target_flags";
195 if(name in var_save_seen)
198 var_save_seen[name]++;
199 otype = var_type_struct(flags[i])
200 if (otype ~ "^((un)?signed +)?int *$")
201 var_target_int[n_target_int++] = otype name;
203 else if (otype ~ "^((un)?signed +)?short *$")
204 var_target_short[n_target_short++] = otype name;
206 else if (otype ~ "^((un)?signed +)?char *$")
207 var_target_char[n_target_char++] = otype name;
210 var_target_other[n_target_other++] = otype name;
214 var_target_int[n_target_int++] = "int target_flags";
217 for (i = 0; i < n_target_other; i++) {
218 print " " var_target_other[i] ";";
221 for (i = 0; i < n_target_int; i++) {
222 print " " var_target_int[i] ";";
225 for (i = 0; i < n_target_short; i++) {
226 print " " var_target_short[i] ";";
229 for (i = 0; i < n_target_char; i++) {
230 print " " var_target_char[i] ";";
236 print "/* Save optimization variables into a structure. */"
237 print "extern void cl_optimization_save (struct cl_optimization *);";
239 print "/* Restore optimization variables from a structure. */";
240 print "extern void cl_optimization_restore (struct cl_optimization *);";
242 print "/* Print optimization variables from a structure. */";
243 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
245 print "/* Save selected option variables into a structure. */"
246 print "extern void cl_target_option_save (struct cl_target_option *);";
248 print "/* Restore selected option variables from a structure. */"
249 print "extern void cl_target_option_restore (struct cl_target_option *);";
251 print "/* Print target option variables from a structure. */";
252 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
256 for (i = 0; i < n_opts; i++) {
257 name = opt_args("Mask", flags[i])
258 vname = var_name(flags[i])
261 mask = "OPTION_MASK_"
263 if (name != "" && !flag_set_p("MaskExists", flags[i]))
264 print "#define " mask name " (1 << " masknum[vname]++ ")"
266 for (i = 0; i < n_extra_masks; i++) {
267 print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
270 for (var in masknum) {
271 if (masknum[var] > 31) {
273 print "#error too many target masks"
275 print "#error too many masks for " var
280 for (i = 0; i < n_opts; i++) {
281 name = opt_args("Mask", flags[i])
282 vname = var_name(flags[i])
284 mask = "OPTION_MASK_"
286 vname = "target_flags"
290 if (name != "" && !flag_set_p("MaskExists", flags[i]))
291 print "#define " macro name \
292 " ((" vname " & " mask name ") != 0)"
294 for (i = 0; i < n_extra_masks; i++) {
295 print "#define TARGET_" extra_masks[i] \
296 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
300 for (i = 0; i < n_opts; i++) {
301 opt = opt_args("InverseMask", flags[i])
303 vname = var_name(flags[i])
305 mask = "OPTION_MASK_"
307 vname = "target_flags"
311 print "#define " macro nth_arg(1, opt) \
312 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
317 for (i = 0; i < n_langs; i++) {
318 macros[i] = "CL_" langs[i]
319 gsub( "[^A-Za-z0-9_]", "X", macros[i] )
320 s = substr(" ", length (macros[i]))
321 print "#define " macros[i] s " (1 << " i ")"
323 print "#define CL_LANG_ALL ((1 << " n_langs ") - 1)"
326 print "enum opt_code"
329 for (i = 0; i < n_opts; i++)
330 back_chain[i] = "N_OPTS";
333 for (i = 0; i < n_opts; i++) {
334 # Combine the flags of identical switches. Switches
335 # appear many times if they are handled by many front
337 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
338 flags[i + 1] = flags[i] " " flags[i + 1];
342 len = length (opts[i]);
343 enum = opt_enum(opts[i])
344 enum_string = enum " = " enum_value ","
346 # Aliases do not get enumeration names.
347 if ((flag_set_p("Alias.*", flags[i]) \
348 && !flag_set_p("SeparateAlias", flags[i])) \
349 || flag_set_p("Ignore", flags[i])) {
350 enum_string = "/* " enum_string " */"
353 # If this switch takes joined arguments, back-chain all
354 # subsequent switches to it for which it is a prefix. If
355 # a later switch S is a longer prefix of a switch T, T
356 # will be back-chained to S in a later iteration of this
357 # for() loop, which is what we want.
358 if (flag_set_p("Joined.*", flags[i])) {
359 for (j = i + 1; j < n_opts; j++) {
360 if (substr (opts[j], 1, len) != opts[i])
362 back_chain[j] = enum;
367 length (enum_string))
372 hlp = "N_(\"" help[i] "\")";
374 print " " enum_string s "/* -" opts[i] " */"
379 print " OPT_SPECIAL_unknown,"
380 print " OPT_SPECIAL_ignore,"
381 print " OPT_SPECIAL_program_name,"
382 print " OPT_SPECIAL_input_file"
385 print "#endif /* OPTIONS_H */"