Daily bump.
[official-gcc.git] / gcc / opth-gen.awk
blob472fd59141352d3269422f656d780529a2bdd459
1 # Copyright (C) 2003-2020 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
8 # later version.
9 #
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
21 # C header file.
23 # This program uses functions from opt-functions.awk and code from
24 # opt-read.awk.
25 # Usage: awk -f opt-functions.awk -f opt-read.awk -f opth-gen.awk \
26 # < inputfile > options.h
28 # Dump out an enumeration into a .h file.
29 # Combine the flags of duplicate options.
30 END {
31 print "/* This file is auto-generated by opth-gen.awk. */"
32 print ""
33 print "#ifndef OPTIONS_H"
34 print "#define OPTIONS_H"
35 print ""
36 print "#include \"flag-types.h\""
37 print ""
39 if (n_extra_h_includes > 0) {
40 for (i = 0; i < n_extra_h_includes; i++) {
41 print "#include " quote extra_h_includes[i] quote
43 print ""
46 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
47 print "#ifndef GENERATOR_FILE"
48 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
49 print "struct GTY(()) gcc_options"
50 print "#else"
51 print "struct gcc_options"
52 print "#endif"
53 print "{"
54 print "#endif"
56 for (i = 0; i < n_extra_vars; i++) {
57 var = extra_vars[i]
58 sub(" *=.*", "", var)
59 orig_var = var
60 name = var
61 type = var
62 type_after = var
63 sub("^.*[ *]", "", name)
64 sub("\\[.*\\]$", "", name)
65 sub("\\[.*\\]$", "", type)
66 sub(" *" name "$", "", type)
67 sub("^.*" name, "", type_after)
68 var_seen[name] = 1
69 print "#ifdef GENERATOR_FILE"
70 print "extern " orig_var ";"
71 print "#else"
72 print " " type " x_" name type_after ";"
73 print "#define " name " global_options.x_" name
74 print "#endif"
77 for (i = 0; i < n_opts; i++) {
78 if (flag_set_p("Save", flags[i]))
79 have_save = 1;
81 name = var_name(flags[i]);
82 if (name == "")
83 continue;
85 if (name in var_seen)
86 continue;
88 var_seen[name] = 1;
89 print "#ifdef GENERATOR_FILE"
90 print "extern " var_type(flags[i]) name ";"
91 print "#else"
92 print " " var_type(flags[i]) "x_" name ";"
93 print "#define " name " global_options.x_" name
94 print "#endif"
96 for (i = 0; i < n_opts; i++) {
97 name = static_var(opts[i], flags[i]);
98 if (name != "") {
99 print "#ifndef GENERATOR_FILE"
100 print " " var_type(flags[i]) "x_" name ";"
101 print "#define x_" name " do_not_use"
102 print "#endif"
105 for (i = 0; i < n_opts; i++) {
106 if (flag_set_p("SetByCombined", flags[i])) {
107 print "#ifndef GENERATOR_FILE"
108 print " bool frontend_set_" var_name(flags[i]) ";"
109 print "#endif"
112 print "#ifndef GENERATOR_FILE"
113 print "};"
114 print "extern struct gcc_options global_options;"
115 print "extern const struct gcc_options global_options_init;"
116 print "extern struct gcc_options global_options_set;"
117 print "#define target_flags_explicit global_options_set.x_target_flags"
118 print "#endif"
119 print "#endif"
120 print ""
122 # All of the optimization switches gathered together so they can be saved and restored.
123 # This will allow attribute((cold)) to turn on space optimization.
125 # Change the type of normal switches from int to unsigned char to save space.
126 # Also, order the structure so that pointer fields occur first, then int
127 # fields, and then char fields to provide the best packing.
129 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
130 print ""
131 print "/* Structure to save/restore optimization and target specific options. */";
132 print "struct GTY(()) cl_optimization";
133 print "{";
135 n_opt_char = 4;
136 n_opt_short = 0;
137 n_opt_int = 0;
138 n_opt_enum = 0;
139 n_opt_other = 0;
140 var_opt_char[0] = "unsigned char x_optimize";
141 var_opt_char[1] = "unsigned char x_optimize_size";
142 var_opt_char[2] = "unsigned char x_optimize_debug";
143 var_opt_char[3] = "unsigned char x_optimize_fast";
145 for (i = 0; i < n_opts; i++) {
146 if (flag_set_p("(Optimization|PerFunction)", flags[i])) {
147 name = var_name(flags[i])
148 if(name == "")
149 continue;
151 if(name in var_opt_seen)
152 continue;
154 var_opt_seen[name]++;
155 otype = var_type_struct(flags[i]);
156 if (otype ~ "^((un)?signed +)?int *$")
157 var_opt_int[n_opt_int++] = otype "x_" name;
159 else if (otype ~ "^((un)?signed +)?short *$")
160 var_opt_short[n_opt_short++] = otype "x_" name;
162 else if (otype ~ "^((un)?signed +)?char *$")
163 var_opt_char[n_opt_char++] = otype "x_" name;
165 else if (otype ~ ("^enum +[_" alnum "]+ *$"))
166 var_opt_enum[n_opt_enum++] = otype "x_" name;
168 else
169 var_opt_other[n_opt_other++] = otype "x_" name;
173 for (i = 0; i < n_opt_other; i++) {
174 print " " var_opt_other[i] ";";
177 for (i = 0; i < n_opt_int; i++) {
178 print " " var_opt_int[i] ";";
181 for (i = 0; i < n_opt_enum; i++) {
182 print " " var_opt_enum[i] ";";
185 for (i = 0; i < n_opt_short; i++) {
186 print " " var_opt_short[i] ";";
189 for (i = 0; i < n_opt_char; i++) {
190 print " " var_opt_char[i] ";";
193 print "};";
194 print "";
196 # Target and optimization save/restore/print functions.
197 print "/* Structure to save/restore selected target specific options. */";
198 print "struct GTY(()) cl_target_option";
199 print "{";
201 n_target_char = 0;
202 n_target_short = 0;
203 n_target_int = 0;
204 n_target_enum = 0;
205 n_target_other = 0;
207 for (i = 0; i < n_target_save; i++) {
208 if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
209 var_target_int[n_target_int++] = target_save_decl[i];
211 else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
212 var_target_short[n_target_short++] = target_save_decl[i];
214 else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
215 var_target_char[n_target_char++] = target_save_decl[i];
217 else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
218 var_target_enum[n_target_enum++] = target_save_decl[i];
220 else
221 var_target_other[n_target_other++] = target_save_decl[i];
224 if (have_save) {
225 for (i = 0; i < n_opts; i++) {
226 if (flag_set_p("Save", flags[i])) {
227 name = var_name(flags[i])
228 if(name == "")
229 name = "target_flags";
231 if(name in var_save_seen)
232 continue;
234 var_save_seen[name]++;
235 otype = var_type_struct(flags[i])
236 if (otype ~ "^((un)?signed +)?int *$")
237 var_target_int[n_target_int++] = otype "x_" name;
239 else if (otype ~ "^((un)?signed +)?short *$")
240 var_target_short[n_target_short++] = otype "x_" name;
242 else if (otype ~ "^((un)?signed +)?char *$")
243 var_target_char[n_target_char++] = otype "x_" name;
245 else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
246 var_target_enum[n_target_enum++] = otype "x_" name;
248 else
249 var_target_other[n_target_other++] = otype "x_" name;
252 } else {
253 var_target_int[n_target_int++] = "int x_target_flags";
256 for (i = 0; i < n_target_other; i++) {
257 print " " var_target_other[i] ";";
260 for (i = 0; i < n_target_enum; i++) {
261 print " " var_target_enum[i] ";";
264 for (i = 0; i < n_target_int; i++) {
265 print " " var_target_int[i] ";";
268 for (i = 0; i < n_target_short; i++) {
269 print " " var_target_short[i] ";";
272 for (i = 0; i < n_target_char; i++) {
273 print " " var_target_char[i] ";";
276 print "};";
277 print "";
278 print "";
279 print "/* Save optimization variables into a structure. */"
280 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
281 print "";
282 print "/* Restore optimization variables from a structure. */";
283 print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
284 print "";
285 print "/* Print optimization variables from a structure. */";
286 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
287 print "";
288 print "/* Print different optimization variables from structures provided as arguments. */";
289 print "extern void cl_optimization_print_diff (FILE *, int, cl_optimization *ptr1, cl_optimization *ptr2);";
290 print "";
291 print "/* Save selected option variables into a structure. */"
292 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
293 print "";
294 print "/* Restore selected option variables from a structure. */"
295 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
296 print "";
297 print "/* Print target option variables from a structure. */";
298 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
299 print "";
300 print "/* Print different target option variables from structures provided as arguments. */";
301 print "extern void cl_target_option_print_diff (FILE *, int, cl_target_option *ptr1, cl_target_option *ptr2);";
302 print "";
303 print "/* Compare two target option variables from a structure. */";
304 print "extern bool cl_target_option_eq (const struct cl_target_option *, const struct cl_target_option *);";
305 print "";
306 print "/* Free heap memory used by target option variables. */";
307 print "extern void cl_target_option_free (struct cl_target_option *);";
308 print "";
309 print "/* Hash option variables from a structure. */";
310 print "extern hashval_t cl_target_option_hash (const struct cl_target_option *);";
311 print "";
312 print "/* Hash optimization from a structure. */";
313 print "extern hashval_t cl_optimization_hash (const struct cl_optimization *);";
314 print "";
315 print "/* Compare two optimization options. */";
316 print "extern bool cl_optimization_option_eq (cl_optimization const *ptr1, cl_optimization const *ptr2);"
317 print "";
318 print "/* Free heap memory used by optimization options. */";
319 print "extern void cl_optimization_option_free (cl_optimization *ptr1);"
320 print "";
321 print "/* Compare and report difference for a part of cl_optimization options. */";
322 print "extern void cl_optimization_compare (gcc_options *ptr1, gcc_options *ptr2);";
323 print "";
324 print "/* Generator files may not have access to location_t, and don't need these. */"
325 print "#if defined(UNKNOWN_LOCATION)"
326 print "bool "
327 print "common_handle_option_auto (struct gcc_options *opts, "
328 print " struct gcc_options *opts_set, "
329 print " const struct cl_decoded_option *decoded, "
330 print " unsigned int lang_mask, int kind, "
331 print " location_t loc, "
332 print " const struct cl_option_handlers *handlers, "
333 print " diagnostic_context *dc); "
334 for (i = 0; i < n_langs; i++) {
335 lang_name = lang_sanitized_name(langs[i]);
336 print "bool"
337 print lang_name "_handle_option_auto (struct gcc_options *opts,"
338 print " struct gcc_options *opts_set,"
339 print " size_t scode, const char *arg,"
340 print " HOST_WIDE_INT value,"
341 print " unsigned int lang_mask, int kind,"
342 print " location_t loc,"
343 print " const struct cl_option_handlers *handlers,"
344 print " diagnostic_context *dc);"
346 print "void cpp_handle_option_auto (const struct gcc_options * opts, size_t scode,"
347 print " struct cpp_options * cpp_opts);"
348 print "void init_global_opts_from_cpp(struct gcc_options * opts, "
349 print " const struct cpp_options * cpp_opts);"
350 print "#endif";
351 print "#endif";
352 print "";
354 for (i = 0; i < n_opts; i++) {
355 name = opt_args("Mask", flags[i])
356 if (name == "") {
357 opt = opt_args("InverseMask", flags[i])
358 if (opt ~ ",")
359 name = nth_arg(0, opt)
360 else
361 name = opt
363 if (name != "" && mask_bits[name] == 0) {
364 mask_bits[name] = 1
365 vname = var_name(flags[i])
366 mask = "MASK_"
367 mask_1 = "1U"
368 if (vname != "") {
369 mask = "OPTION_MASK_"
370 if (host_wide_int[vname] == "yes")
371 mask_1 = "HOST_WIDE_INT_1U"
372 } else
373 extra_mask_bits[name] = 1
374 print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")"
377 for (i = 0; i < n_extra_masks; i++) {
378 if (extra_mask_bits[extra_masks[i]] == 0)
379 print "#define MASK_" extra_masks[i] " (1U << " masknum[""]++ ")"
382 for (var in masknum) {
383 if (var != "" && host_wide_int[var] == "yes") {
384 print "#if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " > HOST_BITS_PER_WIDE_INT"
385 print "#error too many masks for " var
386 print "#endif"
388 else if (masknum[var] > 32) {
389 if (var == "")
390 print "#error too many target masks"
391 else
392 print "#error too many masks for " var
395 print ""
397 for (i = 0; i < n_opts; i++) {
398 name = opt_args("Mask", flags[i])
399 if (name == "") {
400 opt = opt_args("InverseMask", flags[i])
401 if (opt ~ ",")
402 name = nth_arg(0, opt)
403 else
404 name = opt
406 if (name != "" && mask_macros[name] == 0) {
407 mask_macros[name] = 1
408 vname = var_name(flags[i])
409 mask = "OPTION_MASK_"
410 if (vname == "") {
411 vname = "target_flags"
412 mask = "MASK_"
413 extra_mask_macros[name] = 1
415 print "#define TARGET_" name \
416 " ((" vname " & " mask name ") != 0)"
417 print "#define TARGET_" name "_P(" vname ")" \
418 " (((" vname ") & " mask name ") != 0)"
421 for (i = 0; i < n_extra_masks; i++) {
422 if (extra_mask_macros[extra_masks[i]] == 0)
423 print "#define TARGET_" extra_masks[i] \
424 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
426 print ""
428 for (i = 0; i < n_opts; i++) {
429 opt = opt_args("InverseMask", flags[i])
430 if (opt ~ ",") {
431 vname = var_name(flags[i])
432 mask = "OPTION_MASK_"
433 if (vname == "") {
434 vname = "target_flags"
435 mask = "MASK_"
437 print "#define TARGET_" nth_arg(1, opt) \
438 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
441 print ""
443 for (i = 0; i < n_langs; i++) {
444 macros[i] = "CL_" lang_sanitized_name(langs[i])
445 s = substr(" ", length (macros[i]))
446 print "#define " macros[i] s " (1U << " i ")"
448 print "#define CL_LANG_ALL ((1U << " n_langs ") - 1)"
450 print ""
451 print "enum opt_code"
452 print "{"
454 for (i = 0; i < n_opts; i++)
455 back_chain[i] = "N_OPTS";
457 enum_value = 0
458 for (i = 0; i < n_opts; i++) {
459 # Combine the flags of identical switches. Switches
460 # appear many times if they are handled by many front
461 # ends, for example.
462 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
463 flags[i + 1] = flags[i] " " flags[i + 1];
464 i++;
467 len = length (opts[i]);
468 enum = opt_enum(opts[i])
469 enum_string = enum " = " enum_value ","
471 # Aliases do not get enumeration names.
472 if ((flag_set_p("Alias.*", flags[i]) \
473 && !flag_set_p("SeparateAlias", flags[i])) \
474 || flag_set_p("Ignore", flags[i])) {
475 enum_string = "/* " enum_string " */"
478 # If this switch takes joined arguments, back-chain all
479 # subsequent switches to it for which it is a prefix. If
480 # a later switch S is a longer prefix of a switch T, T
481 # will be back-chained to S in a later iteration of this
482 # for() loop, which is what we want.
483 if (flag_set_p("Joined.*", flags[i])) {
484 for (j = i + 1; j < n_opts; j++) {
485 if (substr (opts[j], 1, len) != opts[i])
486 break;
487 back_chain[j] = enum;
491 s = substr(" ",
492 length (enum_string))
494 if (help[i] == "")
495 hlp = "0"
496 else
497 hlp = "N_(\"" help[i] "\")";
499 print " " enum_string s "/* -" opts[i] " */"
500 enum_value++
503 print " N_OPTS,"
504 print " OPT_SPECIAL_unknown,"
505 print " OPT_SPECIAL_ignore,"
506 print " OPT_SPECIAL_warn_removed,"
507 print " OPT_SPECIAL_program_name,"
508 print " OPT_SPECIAL_input_file"
509 print "};"
510 print ""
511 print "#ifdef GCC_C_COMMON_C"
512 print "/* Mapping from cpp message reasons to the options that enable them. */"
513 print "#include <cpplib.h>"
514 print "struct cpp_reason_option_codes_t"
515 print "{"
516 print " /* cpplib message reason. */"
517 print " const enum cpp_warning_reason reason;"
518 print " /* gcc option that controls this message. */"
519 print " const int option_code;"
520 print "};"
521 print ""
522 print "static const struct cpp_reason_option_codes_t cpp_reason_option_codes[] = {"
523 for (i = 0; i < n_opts; i++) {
524 # With identical flags, pick only the last one. The
525 # earlier loop ensured that it has all flags merged,
526 # and a nonempty help text if one of the texts was nonempty.
527 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
528 i++;
530 cpp_reason = nth_arg(0, opt_args("CppReason", flags[i]));
531 if (cpp_reason != "") {
532 cpp_reason = cpp_reason ",";
533 printf(" {%-40s %s},\n", cpp_reason, opt_enum(opts[i]))
536 printf(" {%-40s 0},\n", "CPP_W_NONE,")
537 print "};"
538 print "#endif"
539 print ""
540 print "#endif /* OPTIONS_H */"