1 # Copyright (C) 2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
2 # Contributed by Kelley Cook, June 2004.
3 # Original code from Neil Booth, May 2003.
5 # This program is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by the
7 # Free Software Foundation; either version 3, or (at your option) any
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 # This Awk script reads in the option records generated from
20 # opt-gather.awk, combines the flags of duplicate options and generates a
23 # This program uses functions from opt-functions.awk
24 # 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
48 name = opt_args("Mask", $1)
56 extra_masks[n_extra_masks++] = name
61 # Dump out an enumeration into a .h file.
62 # Combine the flags of duplicate options.
64 print "/* This file is auto-generated by opth-gen.awk. */"
66 print "#ifndef OPTIONS_H"
67 print "#define OPTIONS_H"
69 print "extern int target_flags;"
70 print "extern int target_flags_explicit;"
75 for (i = 0; i < n_opts; i++) {
76 if (flag_set_p("Save", flags[i]))
79 name = var_name(flags[i]);
87 print "extern " var_type(flags[i]) name ";"
91 # All of the optimization switches gathered together so they can be saved and restored.
92 # This will allow attribute((cold)) to turn on space optimization.
94 # Change the type of normal switches from int to unsigned char to save space.
95 # Also, order the structure so that pointer fields occur first, then int
96 # fields, and then char fields to provide the best packing.
98 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
100 print "/* Structure to save/restore optimization and target specific options. */";
101 print "struct cl_optimization GTY(())";
108 var_opt_char[0] = "unsigned char optimize";
109 var_opt_char[1] = "unsigned char optimize_size";
111 for (i = 0; i < n_opts; i++) {
112 if (flag_set_p("Optimization", flags[i])) {
113 name = var_name(flags[i])
117 if(name in var_opt_seen)
120 var_opt_seen[name]++;
121 otype = var_type_struct(flags[i]);
122 if (otype ~ "^((un)?signed +)?int *$")
123 var_opt_int[n_opt_int++] = otype name;
125 else if (otype ~ "^((un)?signed +)?short *$")
126 var_opt_short[n_opt_short++] = otype name;
128 else if (otype ~ "^((un)?signed +)?char *$")
129 var_opt_char[n_opt_char++] = otype name;
132 var_opt_other[n_opt_other++] = otype name;
136 for (i = 0; i < n_opt_other; i++) {
137 print " " var_opt_other[i] ";";
140 for (i = 0; i < n_opt_int; i++) {
141 print " " var_opt_int[i] ";";
144 for (i = 0; i < n_opt_short; i++) {
145 print " " var_opt_short[i] ";";
148 for (i = 0; i < n_opt_char; i++) {
149 print " " var_opt_char[i] ";";
155 # Target and optimization save/restore/print functions.
156 print "/* Structure to save/restore selected target specific options. */";
157 print "struct cl_target_option GTY(())";
165 for (i = 0; i < n_target_save; i++) {
166 if (target_save_decl[i] ~ "^((un)?signed +)?int +[_a-zA-Z0-9]+$")
167 var_target_int[n_target_int++] = target_save_decl[i];
169 else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_a-zA-Z0-9]+$")
170 var_target_short[n_target_short++] = target_save_decl[i];
172 else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_a-zA-Z0-9]+$")
173 var_target_char[n_target_char++] = target_save_decl[i];
176 var_target_other[n_target_other++] = target_save_decl[i];
180 for (i = 0; i < n_opts; i++) {
181 if (flag_set_p("Save", flags[i])) {
182 name = var_name(flags[i])
184 name = "target_flags";
186 if(name in var_save_seen)
189 var_save_seen[name]++;
190 otype = var_type_struct(flags[i])
191 if (otype ~ "^((un)?signed +)?int *$")
192 var_target_int[n_target_int++] = otype name;
194 else if (otype ~ "^((un)?signed +)?short *$")
195 var_target_short[n_target_short++] = otype name;
197 else if (otype ~ "^((un)?signed +)?char *$")
198 var_target_char[n_target_char++] = otype name;
201 var_target_other[n_target_other++] = otype name;
205 var_target_int[n_target_int++] = "int target_flags";
208 for (i = 0; i < n_target_other; i++) {
209 print " " var_target_other[i] ";";
212 for (i = 0; i < n_target_int; i++) {
213 print " " var_target_int[i] ";";
216 for (i = 0; i < n_target_short; i++) {
217 print " " var_target_short[i] ";";
220 for (i = 0; i < n_target_char; i++) {
221 print " " var_target_char[i] ";";
227 print "/* Save optimization variables into a structure. */"
228 print "extern void cl_optimization_save (struct cl_optimization *);";
230 print "/* Restore optimization variables from a structure. */";
231 print "extern void cl_optimization_restore (struct cl_optimization *);";
233 print "/* Print optimization variables from a structure. */";
234 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
236 print "/* Save selected option variables into a structure. */"
237 print "extern void cl_target_option_save (struct cl_target_option *);";
239 print "/* Restore selected option variables from a structure. */"
240 print "extern void cl_target_option_restore (struct cl_target_option *);";
242 print "/* Print target option variables from a structure. */";
243 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
247 for (i = 0; i < n_opts; i++) {
248 name = opt_args("Mask", flags[i])
249 vname = var_name(flags[i])
252 mask = "OPTION_MASK_"
254 if (name != "" && !flag_set_p("MaskExists", flags[i]))
255 print "#define " mask name " (1 << " masknum[vname]++ ")"
257 for (i = 0; i < n_extra_masks; i++) {
258 print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
261 for (var in masknum) {
262 if (masknum[var] > 31) {
264 print "#error too many target masks"
266 print "#error too many masks for " var
271 for (i = 0; i < n_opts; i++) {
272 name = opt_args("Mask", flags[i])
273 vname = var_name(flags[i])
275 mask = "OPTION_MASK_"
277 vname = "target_flags"
281 if (name != "" && !flag_set_p("MaskExists", flags[i]))
282 print "#define " macro name \
283 " ((" vname " & " mask name ") != 0)"
285 for (i = 0; i < n_extra_masks; i++) {
286 print "#define TARGET_" extra_masks[i] \
287 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
291 for (i = 0; i < n_opts; i++) {
292 opt = opt_args("InverseMask", flags[i])
294 vname = var_name(flags[i])
296 mask = "OPTION_MASK_"
298 vname = "target_flags"
302 print "#define " macro nth_arg(1, opt) \
303 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
308 for (i = 0; i < n_langs; i++) {
309 macros[i] = "CL_" langs[i]
310 gsub( "[^A-Za-z0-9_]", "X", macros[i] )
311 s = substr(" ", length (macros[i]))
312 print "#define " macros[i] s " (1 << " i ")"
314 print "#define CL_LANG_ALL ((1 << " n_langs ") - 1)"
317 print "enum opt_code"
320 for (i = 0; i < n_opts; i++)
321 back_chain[i] = "N_OPTS";
323 for (i = 0; i < n_opts; i++) {
324 # Combine the flags of identical switches. Switches
325 # appear many times if they are handled by many front
327 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
328 flags[i + 1] = flags[i] " " flags[i + 1];
332 len = length (opts[i]);
333 enum = "OPT_" opts[i]
334 if (opts[i] == "finline-limit=" || opts[i] == "Wlarger-than=")
336 gsub ("[^A-Za-z0-9]", "_", enum)
338 # If this switch takes joined arguments, back-chain all
339 # subsequent switches to it for which it is a prefix. If
340 # a later switch S is a longer prefix of a switch T, T
341 # will be back-chained to S in a later iteration of this
342 # for() loop, which is what we want.
343 if (flag_set_p("Joined.*", flags[i])) {
344 for (j = i + 1; j < n_opts; j++) {
345 if (substr (opts[j], 1, len) != opts[i])
347 back_chain[j] = enum;
351 s = substr(" ", length (opts[i]))
358 hlp = "N_(\"" help[i] "\")";
360 print " " enum "," s "/* -" opts[i] " */"
366 print "#endif /* OPTIONS_H */"