gcc/f/top.c

   1 /* top.c -- Implementation File (module.c template V1.0)
   2    Copyright (C) 1995, 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
   3    Contributed by James Craig Burley.
   4
   5 This file is part of GNU Fortran.
   6
   7 GNU Fortran is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU Fortran is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Fortran; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21
  22    Related Modules:
  23       None.
  24
  25    Description:
  26       The GNU Fortran Front End.
  27
  28    Modifications:
  29 */
  30
  31 /* Include files. */
  32
  33 #include "proj.h"
  34 #include "top.h"
  35 #include "bad.h"
  36 #include "bit.h"
  37 #include "bld.h"
  38 #include "com.h"
  39 #include "data.h"
  40 #include "equiv.h"
  41 #include "expr.h"
  42 #include "global.h"
  43 #include "implic.h"
  44 #include "info.h"
  45 #include "intrin.h"
  46 #include "lab.h"
  47 #include "lex.h"
  48 #include "malloc.h"
  49 #include "name.h"
  50 #include "src.h"
  51 #include "st.h"
  52 #include "storag.h"
  53 #include "symbol.h"
  54 #include "target.h"
  55 #include "where.h"
  56 #if FFECOM_targetCURRENT == FFECOM_targetGCC
  57 #include "flags.h"
  58 #include "toplev.h"
  59 #endif
  60
  61 /* Externals defined here. */
  62
  63 int flag_traditional;           /* Shouldn't need this (C front end only)! */
  64 bool ffe_is_do_internal_checks_ = FALSE;
  65 bool ffe_is_90_ = FFETARGET_defaultIS_90;
  66 bool ffe_is_automatic_ = FFETARGET_defaultIS_AUTOMATIC;
  67 bool ffe_is_backslash_ = FFETARGET_defaultIS_BACKSLASH;
  68 bool ffe_is_emulate_complex_ = FALSE;
  69 bool ffe_is_underscoring_ = FFETARGET_defaultEXTERNAL_UNDERSCORED
  70   || FFETARGET_defaultUNDERSCORED_EXTERNAL_UNDERSCORED;
  71 bool ffe_is_second_underscore_ = FFETARGET_defaultUNDERSCORED_EXTERNAL_UNDERSCORED;
  72 bool ffe_is_debug_kludge_ = FALSE;
  73 bool ffe_is_dollar_ok_ = FFETARGET_defaultIS_DOLLAR_OK;
  74 bool ffe_is_f2c_ = FFETARGET_defaultIS_F2C;
  75 bool ffe_is_f2c_library_ = FFETARGET_defaultIS_F2C_LIBRARY;
  76 bool ffe_is_ffedebug_ = FALSE;
  77 bool ffe_is_flatten_arrays_ = FALSE;
  78 bool ffe_is_free_form_ = FFETARGET_defaultIS_FREE_FORM;
  79 bool ffe_is_globals_ = TRUE;
  80 bool ffe_is_init_local_zero_ = FFETARGET_defaultIS_INIT_LOCAL_ZERO;
  81 bool ffe_is_mainprog_;          /* TRUE if current prog unit known to be
  82                                    main. */
  83 bool ffe_is_null_version_ = FALSE;
  84 bool ffe_is_onetrip_ = FALSE;
  85 bool ffe_is_silent_ = TRUE;
  86 bool ffe_is_typeless_boz_ = FALSE;
  87 bool ffe_is_pedantic_ = FFETARGET_defaultIS_PEDANTIC;
  88 bool ffe_is_saveall_;           /* TRUE if mainprog or SAVE (no args) seen. */
  89 bool ffe_is_ugly_args_ = TRUE;
  90 bool ffe_is_ugly_assign_ = FALSE;       /* Try and store pointer to ASSIGN labels in INTEGER vars. */
  91 bool ffe_is_ugly_assumed_ = FALSE;      /* DIMENSION X([...,]1) => DIMENSION X([...,]*) */
  92 bool ffe_is_ugly_comma_ = FALSE;
  93 bool ffe_is_ugly_complex_ = FALSE;
  94 bool ffe_is_ugly_init_ = TRUE;
  95 bool ffe_is_ugly_logint_ = FALSE;
  96 bool ffe_is_version_ = FALSE;
  97 bool ffe_is_vxt_ = FALSE;
  98 bool ffe_is_warn_globals_ = TRUE;
  99 bool ffe_is_warn_implicit_ = FALSE;
 100 bool ffe_is_warn_surprising_ = FALSE;
 101 bool ffe_is_zeros_ = FALSE;
 102 ffeCase ffe_case_intrin_ = FFETARGET_defaultCASE_INTRIN;
 103 ffeCase ffe_case_match_ = FFETARGET_defaultCASE_MATCH;
 104 ffeCase ffe_case_source_ = FFETARGET_defaultCASE_SOURCE;
 105 ffeCase ffe_case_symbol_ = FFETARGET_defaultCASE_SYMBOL;
 106 ffeIntrinsicState ffe_intrinsic_state_badu77_ = FFE_intrinsicstateENABLED;
 107 ffeIntrinsicState ffe_intrinsic_state_gnu_ = FFE_intrinsicstateENABLED;
 108 ffeIntrinsicState ffe_intrinsic_state_f2c_ = FFE_intrinsicstateENABLED;
 109 ffeIntrinsicState ffe_intrinsic_state_f90_ = FFE_intrinsicstateENABLED;
 110 ffeIntrinsicState ffe_intrinsic_state_mil_ = FFE_intrinsicstateENABLED;
 111 ffeIntrinsicState ffe_intrinsic_state_unix_ = FFE_intrinsicstateENABLED;
 112 ffeIntrinsicState ffe_intrinsic_state_vxt_ = FFE_intrinsicstateENABLED;
 113 int ffe_fixed_line_length_ = FFETARGET_defaultFIXED_LINE_LENGTH;
 114 mallocPool ffe_file_pool_ = NULL;
 115 mallocPool ffe_any_unit_pool_ = NULL;
 116 mallocPool ffe_program_unit_pool_ = NULL;
 117 ffeCounter ffe_count_0 = 0;
 118 ffeCounter ffe_count_1 = 0;
 119 ffeCounter ffe_count_2 = 0;
 120 ffeCounter ffe_count_3 = 0;
 121 ffeCounter ffe_count_4 = 0;
 122 bool ffe_in_0 = FALSE;
 123 bool ffe_in_1 = FALSE;
 124 bool ffe_in_2 = FALSE;
 125 bool ffe_in_3 = FALSE;
 126 bool ffe_in_4 = FALSE;
 127
 128 /* Simple definitions and enumerations. */
 129
 130
 131 /* Internal typedefs. */
 132
 133
 134 /* Private include files. */
 135
 136
 137 /* Internal structure definitions. */
 138
 139
 140 /* Static objects accessed by functions in this module. */
 141
 142
 143 /* Static functions (internal). */
 144
 145 static bool ffe_is_digit_string_ (char *s);
 146
 147 /* Internal macros. */
 148 \f
 149 static bool
 150 ffe_is_digit_string_ (char *s)
 151 {
 152   char *p;
 153
 154   for (p = s; ISDIGIT (*p); ++p)
 155     ;
 156
 157   return (p != s) && (*p == '\0');
 158 }
 159
 160 /* Handle command-line options.  Returns 0 if unrecognized, 1 if
 161    recognized and handled.  */
 162
 163 int
 164 ffe_decode_option (argc, argv)
 165      int argc ATTRIBUTE_UNUSED;
 166      char **argv;
 167 {
 168   char *opt = argv[0];
 169   if (opt[0] != '-')
 170     return 0;
 171   if (opt[1] == 'f')
 172     {
 173       if (strcmp (&opt[2], "version") == 0)
 174         {
 175           ffe_set_is_version (TRUE);
 176           ffe_set_is_do_internal_checks (TRUE);
 177         }
 178       else if (strcmp (&opt[2], "null-version") == 0)
 179         ffe_set_is_null_version (TRUE);
 180       else if (strcmp (&opt[2], "f66") == 0)
 181         {
 182           ffe_set_is_onetrip (TRUE);
 183           ffe_set_is_ugly_assumed (TRUE);
 184         }
 185       else if (strcmp (&opt[2], "no-f66") == 0)
 186         {
 187           ffe_set_is_onetrip (FALSE);
 188           ffe_set_is_ugly_assumed (FALSE);
 189         }
 190       else if (strcmp (&opt[2], "f77") == 0)
 191         {
 192           ffe_set_is_backslash (TRUE);
 193           ffe_set_is_typeless_boz (FALSE);
 194         }
 195       else if (strcmp (&opt[2], "no-f77") == 0)
 196         {
 197           ffe_set_is_backslash (FALSE);
 198         }
 199       else if (strcmp (&opt[2], "f90") == 0)
 200         ffe_set_is_90 (TRUE);
 201       else if (strcmp (&opt[2], "no-f90") == 0)
 202         ffe_set_is_90 (FALSE);
 203       else if (strcmp (&opt[2], "automatic") == 0)
 204         ffe_set_is_automatic (TRUE);
 205       else if (strcmp (&opt[2], "no-automatic") == 0)
 206         ffe_set_is_automatic (FALSE);
 207       else if (strcmp (&opt[2], "dollar-ok") == 0)
 208         ffe_set_is_dollar_ok (TRUE);
 209       else if (strcmp (&opt[2], "no-dollar-ok") == 0)
 210         ffe_set_is_dollar_ok (FALSE);
 211       else if (strcmp (&opt[2], "f2c") == 0)
 212         ffe_set_is_f2c (TRUE);
 213       else if (strcmp (&opt[2], "no-f2c") == 0)
 214         ffe_set_is_f2c (FALSE);
 215       else if (strcmp (&opt[2], "f2c-library") == 0)
 216         ffe_set_is_f2c_library (TRUE);
 217       else if (strcmp (&opt[2], "no-f2c-library") == 0)
 218         ffe_set_is_f2c_library (FALSE);
 219       else if (strcmp (&opt[2], "flatten-arrays") == 0)
 220         ffe_set_is_flatten_arrays (TRUE);
 221       else if (strcmp (&opt[2], "no-flatten-arrays") == 0)
 222         ffe_set_is_flatten_arrays (FALSE);
 223       else if (strcmp (&opt[2], "free-form") == 0)
 224         ffe_set_is_free_form (TRUE);
 225       else if (strcmp (&opt[2], "no-free-form") == 0)
 226         ffe_set_is_free_form (FALSE);
 227       else if (strcmp (&opt[2], "fixed-form") == 0)
 228         ffe_set_is_free_form (FALSE);
 229       else if (strcmp (&opt[2], "no-fixed-form") == 0)
 230         ffe_set_is_free_form (TRUE);
 231       else if (strcmp (&opt[2], "pedantic") == 0)
 232         ffe_set_is_pedantic (TRUE);
 233       else if (strcmp (&opt[2], "no-pedantic") == 0)
 234         ffe_set_is_pedantic (FALSE);
 235       else if (strcmp (&opt[2], "vxt") == 0)
 236         ffe_set_is_vxt (TRUE);
 237       else if (strcmp (&opt[2], "not-vxt") == 0)
 238         ffe_set_is_vxt (FALSE);
 239       else if (strcmp (&opt[2], "vxt-not-f90") == 0)
 240         warning ("%s no longer supported -- try -fvxt", opt);
 241       else if (strcmp (&opt[2], "f90-not-vxt") == 0)
 242         warning ("%s no longer supported -- try -fno-vxt -ff90", opt);
 243       else if (strcmp (&opt[2], "no-ugly") == 0)
 244         {
 245           ffe_set_is_ugly_args (FALSE);
 246           ffe_set_is_ugly_assign (FALSE);
 247           ffe_set_is_ugly_assumed (FALSE);
 248           ffe_set_is_ugly_comma (FALSE);
 249           ffe_set_is_ugly_complex (FALSE);
 250           ffe_set_is_ugly_init (FALSE);
 251           ffe_set_is_ugly_logint (FALSE);
 252         }
 253       else if (strcmp (&opt[2], "ugly-args") == 0)
 254         ffe_set_is_ugly_args (TRUE);
 255       else if (strcmp (&opt[2], "no-ugly-args") == 0)
 256         ffe_set_is_ugly_args (FALSE);
 257       else if (strcmp (&opt[2], "ugly-assign") == 0)
 258         ffe_set_is_ugly_assign (TRUE);
 259       else if (strcmp (&opt[2], "no-ugly-assign") == 0)
 260         ffe_set_is_ugly_assign (FALSE);
 261       else if (strcmp (&opt[2], "ugly-assumed") == 0)
 262         ffe_set_is_ugly_assumed (TRUE);
 263       else if (strcmp (&opt[2], "no-ugly-assumed") == 0)
 264         ffe_set_is_ugly_assumed (FALSE);
 265       else if (strcmp (&opt[2], "ugly-comma") == 0)
 266         ffe_set_is_ugly_comma (TRUE);
 267       else if (strcmp (&opt[2], "no-ugly-comma") == 0)
 268         ffe_set_is_ugly_comma (FALSE);
 269       else if (strcmp (&opt[2], "ugly-complex") == 0)
 270         ffe_set_is_ugly_complex (TRUE);
 271       else if (strcmp (&opt[2], "no-ugly-complex") == 0)
 272         ffe_set_is_ugly_complex (FALSE);
 273       else if (strcmp (&opt[2], "ugly-init") == 0)
 274         ffe_set_is_ugly_init (TRUE);
 275       else if (strcmp (&opt[2], "no-ugly-init") == 0)
 276         ffe_set_is_ugly_init (FALSE);
 277       else if (strcmp (&opt[2], "ugly-logint") == 0)
 278         ffe_set_is_ugly_logint (TRUE);
 279       else if (strcmp (&opt[2], "no-ugly-logint") == 0)
 280         ffe_set_is_ugly_logint (FALSE);
 281       else if (strcmp (&opt[2], "xyzzy") == 0)
 282         ffe_set_is_ffedebug (TRUE);
 283       else if (strcmp (&opt[2], "no-xyzzy") == 0)
 284         ffe_set_is_ffedebug (FALSE);
 285       else if (strcmp (&opt[2], "init-local-zero") == 0)
 286         ffe_set_is_init_local_zero (TRUE);
 287       else if (strcmp (&opt[2], "no-init-local-zero") == 0)
 288         ffe_set_is_init_local_zero (FALSE);
 289       else if (strcmp (&opt[2], "emulate-complex") == 0)
 290         ffe_set_is_emulate_complex (TRUE);
 291       else if (strcmp (&opt[2], "no-emulate-complex") == 0)
 292         ffe_set_is_emulate_complex (FALSE);
 293       else if (strcmp (&opt[2], "backslash") == 0)
 294         ffe_set_is_backslash (TRUE);
 295       else if (strcmp (&opt[2], "no-backslash") == 0)
 296         ffe_set_is_backslash (FALSE);
 297       else if (strcmp (&opt[2], "underscoring") == 0)
 298         ffe_set_is_underscoring (TRUE);
 299       else if (strcmp (&opt[2], "no-underscoring") == 0)
 300         ffe_set_is_underscoring (FALSE);
 301       else if (strcmp (&opt[2], "second-underscore") == 0)
 302         ffe_set_is_second_underscore (TRUE);
 303       else if (strcmp (&opt[2], "no-second-underscore") == 0)
 304         ffe_set_is_second_underscore (FALSE);
 305       else if (strcmp (&opt[2], "zeros") == 0)
 306         ffe_set_is_zeros (TRUE);
 307       else if (strcmp (&opt[2], "no-zeros") == 0)
 308         ffe_set_is_zeros (FALSE);
 309       else if (strcmp (&opt[2], "debug-kludge") == 0)
 310         warning ("%s disabled, use normal debugging flags", opt);
 311       else if (strcmp (&opt[2], "no-debug-kludge") == 0)
 312         warning ("%s disabled, use normal debugging flags", opt);
 313       else if (strcmp (&opt[2], "onetrip") == 0)
 314         ffe_set_is_onetrip (TRUE);
 315       else if (strcmp (&opt[2], "no-onetrip") == 0)
 316         ffe_set_is_onetrip (FALSE);
 317       else if (strcmp (&opt[2], "silent") == 0)
 318         ffe_set_is_silent (TRUE);
 319       else if (strcmp (&opt[2], "no-silent") == 0)
 320         ffe_set_is_silent (FALSE);
 321       else if (strcmp (&opt[2], "globals") == 0)
 322         ffe_set_is_globals (TRUE);
 323       else if (strcmp (&opt[2], "no-globals") == 0)
 324         ffe_set_is_globals (FALSE);
 325       else if (strcmp (&opt[2], "fortran-bounds-check") == 0)
 326         flag_bounds_check = TRUE;
 327       else if (strcmp (&opt[2], "no-fortran-bounds-check") == 0)
 328         flag_bounds_check = FALSE;
 329       else if (strcmp (&opt[2], "typeless-boz") == 0)
 330         ffe_set_is_typeless_boz (TRUE);
 331       else if (strcmp (&opt[2], "no-typeless-boz") == 0)
 332         ffe_set_is_typeless_boz (FALSE);
 333       else if (strcmp (&opt[2], "intrin-case-initcap") == 0)
 334         ffe_set_case_intrin (FFE_caseINITCAP);
 335       else if (strcmp (&opt[2], "intrin-case-upper") == 0)
 336         ffe_set_case_intrin (FFE_caseUPPER);
 337       else if (strcmp (&opt[2], "intrin-case-lower") == 0)
 338         ffe_set_case_intrin (FFE_caseLOWER);
 339       else if (strcmp (&opt[2], "intrin-case-any") == 0)
 340         ffe_set_case_intrin (FFE_caseNONE);
 341       else if (strcmp (&opt[2], "match-case-initcap") == 0)
 342         ffe_set_case_match (FFE_caseINITCAP);
 343       else if (strcmp (&opt[2], "match-case-upper") == 0)
 344         ffe_set_case_match (FFE_caseUPPER);
 345       else if (strcmp (&opt[2], "match-case-lower") == 0)
 346         ffe_set_case_match (FFE_caseLOWER);
 347       else if (strcmp (&opt[2], "match-case-any") == 0)
 348         ffe_set_case_match (FFE_caseNONE);
 349       else if (strcmp (&opt[2], "source-case-upper") == 0)
 350         ffe_set_case_source (FFE_caseUPPER);
 351       else if (strcmp (&opt[2], "source-case-lower") == 0)
 352         ffe_set_case_source (FFE_caseLOWER);
 353       else if (strcmp (&opt[2], "source-case-preserve") == 0)
 354         ffe_set_case_source (FFE_caseNONE);
 355       else if (strcmp (&opt[2], "symbol-case-initcap") == 0)
 356         ffe_set_case_symbol (FFE_caseINITCAP);
 357       else if (strcmp (&opt[2], "symbol-case-upper") == 0)
 358         ffe_set_case_symbol (FFE_caseUPPER);
 359       else if (strcmp (&opt[2], "symbol-case-lower") == 0)
 360         ffe_set_case_symbol (FFE_caseLOWER);
 361       else if (strcmp (&opt[2], "symbol-case-any") == 0)
 362         ffe_set_case_symbol (FFE_caseNONE);
 363       else if (strcmp (&opt[2], "case-strict-upper") == 0)
 364         {
 365           ffe_set_case_intrin (FFE_caseUPPER);
 366           ffe_set_case_match (FFE_caseUPPER);
 367           ffe_set_case_source (FFE_caseNONE);
 368           ffe_set_case_symbol (FFE_caseUPPER);
 369         }
 370       else if (strcmp (&opt[2], "case-strict-lower") == 0)
 371         {
 372           ffe_set_case_intrin (FFE_caseLOWER);
 373           ffe_set_case_match (FFE_caseLOWER);
 374           ffe_set_case_source (FFE_caseNONE);
 375           ffe_set_case_symbol (FFE_caseLOWER);
 376         }
 377       else if (strcmp (&opt[2], "case-initcap") == 0)
 378         {
 379           ffe_set_case_intrin (FFE_caseINITCAP);
 380           ffe_set_case_match (FFE_caseINITCAP);
 381           ffe_set_case_source (FFE_caseNONE);
 382           ffe_set_case_symbol (FFE_caseINITCAP);
 383         }
 384       else if (strcmp (&opt[2], "case-upper") == 0)
 385         {
 386           ffe_set_case_intrin (FFE_caseNONE);
 387           ffe_set_case_match (FFE_caseNONE);
 388           ffe_set_case_source (FFE_caseUPPER);
 389           ffe_set_case_symbol (FFE_caseNONE);
 390         }
 391       else if (strcmp (&opt[2], "case-lower") == 0)
 392         {
 393           ffe_set_case_intrin (FFE_caseNONE);
 394           ffe_set_case_match (FFE_caseNONE);
 395           ffe_set_case_source (FFE_caseLOWER);
 396           ffe_set_case_symbol (FFE_caseNONE);
 397         }
 398       else if (strcmp (&opt[2], "case-preserve") == 0)
 399         {
 400           ffe_set_case_intrin (FFE_caseNONE);
 401           ffe_set_case_match (FFE_caseNONE);
 402           ffe_set_case_source (FFE_caseNONE);
 403           ffe_set_case_symbol (FFE_caseNONE);
 404         }
 405       else if (strcmp (&opt[2], "badu77-intrinsics-delete") == 0)
 406         ffe_set_intrinsic_state_badu77 (FFE_intrinsicstateDELETED);
 407       else if (strcmp (&opt[2], "badu77-intrinsics-hide") == 0)
 408         ffe_set_intrinsic_state_badu77 (FFE_intrinsicstateHIDDEN);
 409       else if (strcmp (&opt[2], "badu77-intrinsics-disable") == 0)
 410         ffe_set_intrinsic_state_badu77 (FFE_intrinsicstateDISABLED);
 411       else if (strcmp (&opt[2], "badu77-intrinsics-enable") == 0)
 412         ffe_set_intrinsic_state_badu77 (FFE_intrinsicstateENABLED);
 413       else if (strcmp (&opt[2], "gnu-intrinsics-delete") == 0)
 414         ffe_set_intrinsic_state_gnu (FFE_intrinsicstateDELETED);
 415       else if (strcmp (&opt[2], "gnu-intrinsics-hide") == 0)
 416         ffe_set_intrinsic_state_gnu (FFE_intrinsicstateHIDDEN);
 417       else if (strcmp (&opt[2], "gnu-intrinsics-disable") == 0)
 418         ffe_set_intrinsic_state_gnu (FFE_intrinsicstateDISABLED);
 419       else if (strcmp (&opt[2], "gnu-intrinsics-enable") == 0)
 420         ffe_set_intrinsic_state_gnu (FFE_intrinsicstateENABLED);
 421       else if (strcmp (&opt[2], "f2c-intrinsics-delete") == 0)
 422         ffe_set_intrinsic_state_f2c (FFE_intrinsicstateDELETED);
 423       else if (strcmp (&opt[2], "f2c-intrinsics-hide") == 0)
 424         ffe_set_intrinsic_state_f2c (FFE_intrinsicstateHIDDEN);
 425       else if (strcmp (&opt[2], "f2c-intrinsics-disable") == 0)
 426         ffe_set_intrinsic_state_f2c (FFE_intrinsicstateDISABLED);
 427       else if (strcmp (&opt[2], "f2c-intrinsics-enable") == 0)
 428         ffe_set_intrinsic_state_f2c (FFE_intrinsicstateENABLED);
 429       else if (strcmp (&opt[2], "f90-intrinsics-delete") == 0)
 430         ffe_set_intrinsic_state_f90 (FFE_intrinsicstateDELETED);
 431       else if (strcmp (&opt[2], "f90-intrinsics-hide") == 0)
 432         ffe_set_intrinsic_state_f90 (FFE_intrinsicstateHIDDEN);
 433       else if (strcmp (&opt[2], "f90-intrinsics-disable") == 0)
 434         ffe_set_intrinsic_state_f90 (FFE_intrinsicstateDISABLED);
 435       else if (strcmp (&opt[2], "f90-intrinsics-enable") == 0)
 436         ffe_set_intrinsic_state_f90 (FFE_intrinsicstateENABLED);
 437       else if (strcmp (&opt[2], "mil-intrinsics-delete") == 0)
 438         ffe_set_intrinsic_state_mil (FFE_intrinsicstateDELETED);
 439       else if (strcmp (&opt[2], "mil-intrinsics-hide") == 0)
 440         ffe_set_intrinsic_state_mil (FFE_intrinsicstateHIDDEN);
 441       else if (strcmp (&opt[2], "mil-intrinsics-disable") == 0)
 442         ffe_set_intrinsic_state_mil (FFE_intrinsicstateDISABLED);
 443       else if (strcmp (&opt[2], "mil-intrinsics-enable") == 0)
 444         ffe_set_intrinsic_state_mil (FFE_intrinsicstateENABLED);
 445       else if (strcmp (&opt[2], "unix-intrinsics-delete") == 0)
 446         ffe_set_intrinsic_state_unix (FFE_intrinsicstateDELETED);
 447       else if (strcmp (&opt[2], "unix-intrinsics-hide") == 0)
 448         ffe_set_intrinsic_state_unix (FFE_intrinsicstateHIDDEN);
 449       else if (strcmp (&opt[2], "unix-intrinsics-disable") == 0)
 450         ffe_set_intrinsic_state_unix (FFE_intrinsicstateDISABLED);
 451       else if (strcmp (&opt[2], "unix-intrinsics-enable") == 0)
 452         ffe_set_intrinsic_state_unix (FFE_intrinsicstateENABLED);
 453       else if (strcmp (&opt[2], "vxt-intrinsics-delete") == 0)
 454         ffe_set_intrinsic_state_vxt (FFE_intrinsicstateDELETED);
 455       else if (strcmp (&opt[2], "vxt-intrinsics-hide") == 0)
 456         ffe_set_intrinsic_state_vxt (FFE_intrinsicstateHIDDEN);
 457       else if (strcmp (&opt[2], "vxt-intrinsics-disable") == 0)
 458         ffe_set_intrinsic_state_vxt (FFE_intrinsicstateDISABLED);
 459       else if (strcmp (&opt[2], "vxt-intrinsics-enable") == 0)
 460         ffe_set_intrinsic_state_vxt (FFE_intrinsicstateENABLED);
 461       else if (strncmp (&opt[2], "fixed-line-length-",
 462                         strlen ("fixed-line-length-")) == 0)
 463         {
 464           char *len = &opt[2] + strlen ("fixed-line-length-");
 465
 466           if (strcmp (len, "none") == 0)
 467             {
 468               ffe_set_fixed_line_length (0);
 469               return -1;
 470             }
 471           else if (ffe_is_digit_string_ (len))
 472             {
 473               ffe_set_fixed_line_length (atol (len));
 474               return -1;
 475             }
 476           else
 477             return 0;
 478         }
 479       else
 480         return 0;
 481     }
 482   else if (opt[1] == 'W')
 483     {
 484       if (!strcmp (&opt[2], "comment"))
 485         ; /* cpp handles this one.  */
 486       else if (!strcmp (&opt[2], "no-comment"))
 487         ; /* cpp handles this one.  */
 488       else if (!strcmp (&opt[2], "comments"))
 489         ; /* cpp handles this one.  */
 490       else if (!strcmp (&opt[2], "no-comments"))
 491         ; /* cpp handles this one.  */
 492       else if (!strcmp (&opt[2], "trigraphs"))
 493         ; /* cpp handles this one.  */
 494       else if (!strcmp (&opt[2], "no-trigraphs"))
 495         ; /* cpp handles this one.  */
 496       else if (!strcmp (&opt[2], "import"))
 497         ; /* cpp handles this one.  */
 498       else if (!strcmp (&opt[2], "no-import"))
 499         ; /* cpp handles this one.  */
 500       else if (!strcmp (&opt[2], "globals"))
 501         ffe_set_is_warn_globals (TRUE);
 502       else if (!strcmp (&opt[2], "no-globals"))
 503         ffe_set_is_warn_globals (FALSE);
 504       else if (!strcmp (&opt[2], "implicit"))
 505         ffe_set_is_warn_implicit (TRUE);
 506       else if (!strcmp (&opt[2], "no-implicit"))
 507         ffe_set_is_warn_implicit (FALSE);
 508       else if (!strcmp (&opt[2], "surprising"))
 509         ffe_set_is_warn_surprising (TRUE);
 510       else if (!strcmp (&opt[2], "no-surprising"))
 511         ffe_set_is_warn_surprising (FALSE);
 512       else if (!strcmp (&opt[2], "all"))
 513         {
 514           /* We save the value of warn_uninitialized, since if they put
 515              -Wuninitialized on the command line, we need to generate a
 516              warning about not using it without also specifying -O.  */
 517           if (warn_uninitialized != 1)
 518             warn_uninitialized = 2;
 519           set_Wunused (1);
 520         }
 521       else
 522         return 0;
 523     }
 524   else if (opt[1] == 'I')
 525     return ffecom_decode_include_option (&opt[2]);
 526   else
 527     return 0;
 528
 529   return 1;
 530 }
 531
 532 /* Run the FFE on a source file (not an INCLUDEd file).
 533
 534    Runs the whole shebang.
 535
 536    Prepare and invoke the appropriate lexer.  */
 537
 538 void
 539 ffe_file (ffewhereFile wf, FILE *f)
 540 {
 541   ffe_init_1 ();
 542   ffelex_set_handler ((ffelexHandler) ffest_first);
 543   ffewhere_file_set (wf, TRUE, 0);
 544   if (ffe_is_free_form_)
 545     ffelex_file_free (wf, f);
 546   else
 547     ffelex_file_fixed (wf, f);
 548   ffest_eof ();
 549   ffe_terminate_1 ();
 550 }
 551
 552 /* ffe_init_0 -- Initialize the FFE per image invocation
 553
 554    ffe_init_0();
 555
 556    Performs per-image invocation.  */
 557
 558 void
 559 ffe_init_0 ()
 560 {
 561   ++ffe_count_0;
 562   ffe_in_0 = TRUE;
 563
 564   ffebad_init_0 ();
 565   ffebit_init_0 ();
 566   ffebld_init_0 ();
 567   ffecom_init_0 ();
 568   ffedata_init_0 ();
 569   ffeequiv_init_0 ();
 570   ffeexpr_init_0 ();
 571   ffeglobal_init_0 ();
 572   ffeimplic_init_0 ();
 573   ffeinfo_init_0 ();
 574   ffeintrin_init_0 ();
 575   ffelab_init_0 ();
 576   ffelex_init_0 ();
 577   ffename_init_0 ();
 578   ffesrc_init_0 ();
 579   ffest_init_0 ();
 580   ffestorag_init_0 ();
 581   ffesymbol_init_0 ();
 582   ffetarget_init_0 ();
 583   ffetype_init_0 ();
 584   ffewhere_init_0 ();
 585 }
 586
 587 /* ffe_init_1 -- Initialize the FFE per source file
 588
 589    ffe_init_1();
 590
 591    Performs per-source-file invocation (not including INCLUDEd files).  */
 592
 593 void
 594 ffe_init_1 ()
 595 {
 596   ++ffe_count_1;
 597   ffe_in_1 = TRUE;
 598
 599   assert (ffe_file_pool_ == NULL);
 600   ffe_file_pool_ = malloc_pool_new ("File", malloc_pool_image (), 1024);
 601
 602   ffebad_init_1 ();
 603   ffebit_init_1 ();
 604   ffebld_init_1 ();
 605   ffecom_init_1 ();
 606   ffedata_init_1 ();
 607   ffeequiv_init_1 ();
 608   ffeexpr_init_1 ();
 609   ffeglobal_init_1 ();
 610   ffeimplic_init_1 ();
 611   ffeinfo_init_1 ();
 612   ffeintrin_init_1 ();
 613   ffelab_init_1 ();
 614   ffelex_init_1 ();
 615   ffename_init_1 ();
 616   ffesrc_init_1 ();
 617   ffest_init_1 ();
 618   ffestorag_init_1 ();
 619   ffesymbol_init_1 ();
 620   ffetarget_init_1 ();
 621   ffetype_init_1 ();
 622   ffewhere_init_1 ();
 623
 624   ffe_init_2 ();
 625 }
 626
 627 /* ffe_init_2 -- Initialize the FFE per outer program unit
 628
 629    ffe_init_2();
 630
 631    Performs per-program-unit invocation.  */
 632
 633 void
 634 ffe_init_2 ()
 635 {
 636   ++ffe_count_2;
 637   ffe_in_2 = TRUE;
 638
 639   assert (ffe_program_unit_pool_ == NULL);
 640   ffe_program_unit_pool_ = malloc_pool_new ("Program unit", ffe_file_pool_, 1024);
 641   ffe_is_mainprog_ = FALSE;
 642   ffe_is_saveall_ = !ffe_is_automatic_;
 643
 644   ffebad_init_2 ();
 645   ffebit_init_2 ();
 646   ffebld_init_2 ();
 647   ffecom_init_2 ();
 648   ffedata_init_2 ();
 649   ffeequiv_init_2 ();
 650   ffeexpr_init_2 ();
 651   ffeglobal_init_2 ();
 652   ffeimplic_init_2 ();
 653   ffeinfo_init_2 ();
 654   ffeintrin_init_2 ();
 655   ffelab_init_2 ();
 656   ffelex_init_2 ();
 657   ffename_init_2 ();
 658   ffesrc_init_2 ();
 659   ffest_init_2 ();
 660   ffestorag_init_2 ();
 661   ffesymbol_init_2 ();
 662   ffetarget_init_2 ();
 663   ffetype_init_2 ();
 664   ffewhere_init_2 ();
 665
 666   ffe_init_3 ();
 667 }
 668
 669 /* ffe_init_3 -- Initialize the FFE per any program unit
 670
 671    ffe_init_3();
 672
 673    Performs per-any-unit initialization; does NOT do
 674    per-statement-function-definition initialization (i.e. the chain
 675    of inits, from 0-3, breaks here; level 4 must be invoked independently).  */
 676
 677 void
 678 ffe_init_3 ()
 679 {
 680   ++ffe_count_3;
 681   ffe_in_3 = TRUE;
 682
 683   assert (ffe_any_unit_pool_ == NULL);
 684   ffe_any_unit_pool_ = malloc_pool_new ("Any unit", ffe_program_unit_pool_, 1024);
 685
 686   ffebad_init_3 ();
 687   ffebit_init_3 ();
 688   ffebld_init_3 ();
 689   ffecom_init_3 ();
 690   ffedata_init_3 ();
 691   ffeequiv_init_3 ();
 692   ffeexpr_init_3 ();
 693   ffeglobal_init_3 ();
 694   ffeimplic_init_3 ();
 695   ffeinfo_init_3 ();
 696   ffeintrin_init_3 ();
 697   ffelab_init_3 ();
 698   ffelex_init_3 ();
 699   ffename_init_3 ();
 700   ffesrc_init_3 ();
 701   ffest_init_3 ();
 702   ffestorag_init_3 ();
 703   ffesymbol_init_3 ();
 704   ffetarget_init_3 ();
 705   ffetype_init_3 ();
 706   ffewhere_init_3 ();
 707 }
 708
 709 /* ffe_init_4 -- Initialize the FFE per statement function definition
 710
 711    ffe_init_4();  */
 712
 713 void
 714 ffe_init_4 ()
 715 {
 716   ++ffe_count_4;
 717   ffe_in_4 = TRUE;
 718
 719   ffebad_init_4 ();
 720   ffebit_init_4 ();
 721   ffebld_init_4 ();
 722   ffecom_init_4 ();
 723   ffedata_init_4 ();
 724   ffeequiv_init_4 ();
 725   ffeexpr_init_4 ();
 726   ffeglobal_init_4 ();
 727   ffeimplic_init_4 ();
 728   ffeinfo_init_4 ();
 729   ffeintrin_init_4 ();
 730   ffelab_init_4 ();
 731   ffelex_init_4 ();
 732   ffename_init_4 ();
 733   ffesrc_init_4 ();
 734   ffest_init_4 ();
 735   ffestorag_init_4 ();
 736   ffesymbol_init_4 ();
 737   ffetarget_init_4 ();
 738   ffetype_init_4 ();
 739   ffewhere_init_4 ();
 740 }
 741
 742 /* ffe_terminate_0 -- Terminate the FFE prior to image termination
 743
 744    ffe_terminate_0();  */
 745
 746 void
 747 ffe_terminate_0 ()
 748 {
 749   ffe_count_1 = 0;
 750   ffe_in_0 = FALSE;
 751
 752   ffebad_terminate_0 ();
 753   ffebit_terminate_0 ();
 754   ffebld_terminate_0 ();
 755   ffecom_terminate_0 ();
 756   ffedata_terminate_0 ();
 757   ffeequiv_terminate_0 ();
 758   ffeexpr_terminate_0 ();
 759   ffeglobal_terminate_0 ();
 760   ffeimplic_terminate_0 ();
 761   ffeinfo_terminate_0 ();
 762   ffeintrin_terminate_0 ();
 763   ffelab_terminate_0 ();
 764   ffelex_terminate_0 ();
 765   ffename_terminate_0 ();
 766   ffesrc_terminate_0 ();
 767   ffest_terminate_0 ();
 768   ffestorag_terminate_0 ();
 769   ffesymbol_terminate_0 ();
 770   ffetarget_terminate_0 ();
 771   ffetype_terminate_0 ();
 772   ffewhere_terminate_0 ();
 773 }
 774
 775 /* ffe_terminate_1 -- Terminate the FFE after seeing source file EOF
 776
 777    ffe_terminate_1();  */
 778
 779 void
 780 ffe_terminate_1 ()
 781 {
 782   ffe_count_2 = 0;
 783   ffe_in_1 = FALSE;
 784
 785   ffe_terminate_2 ();
 786
 787   ffebad_terminate_1 ();
 788   ffebit_terminate_1 ();
 789   ffebld_terminate_1 ();
 790   ffecom_terminate_1 ();
 791   ffedata_terminate_1 ();
 792   ffeequiv_terminate_1 ();
 793   ffeexpr_terminate_1 ();
 794   ffeglobal_terminate_1 ();
 795   ffeimplic_terminate_1 ();
 796   ffeinfo_terminate_1 ();
 797   ffeintrin_terminate_1 ();
 798   ffelab_terminate_1 ();
 799   ffelex_terminate_1 ();
 800   ffename_terminate_1 ();
 801   ffesrc_terminate_1 ();
 802   ffest_terminate_1 ();
 803   ffestorag_terminate_1 ();
 804   ffesymbol_terminate_1 ();
 805   ffetarget_terminate_1 ();
 806   ffetype_terminate_1 ();
 807   ffewhere_terminate_1 ();
 808
 809   assert (ffe_file_pool_ != NULL);
 810   malloc_pool_kill (ffe_file_pool_);
 811   ffe_file_pool_ = NULL;
 812 }
 813
 814 /* ffe_terminate_2 -- Terminate the FFE after seeing outer program unit END
 815
 816    ffe_terminate_2();  */
 817
 818 void
 819 ffe_terminate_2 ()
 820 {
 821   ffe_count_3 = 0;
 822   ffe_in_2 = FALSE;
 823
 824   ffe_terminate_3 ();
 825
 826   ffebad_terminate_2 ();
 827   ffebit_terminate_2 ();
 828   ffebld_terminate_2 ();
 829   ffecom_terminate_2 ();
 830   ffedata_terminate_2 ();
 831   ffeequiv_terminate_2 ();
 832   ffeexpr_terminate_2 ();
 833   ffeglobal_terminate_2 ();
 834   ffeimplic_terminate_2 ();
 835   ffeinfo_terminate_2 ();
 836   ffeintrin_terminate_2 ();
 837   ffelab_terminate_2 ();
 838   ffelex_terminate_2 ();
 839   ffename_terminate_2 ();
 840   ffesrc_terminate_2 ();
 841   ffest_terminate_2 ();
 842   ffestorag_terminate_2 ();
 843   ffesymbol_terminate_2 ();
 844   ffetarget_terminate_2 ();
 845   ffetype_terminate_2 ();
 846   ffewhere_terminate_2 ();
 847
 848   assert (ffe_program_unit_pool_ != NULL);
 849   malloc_pool_kill (ffe_program_unit_pool_);
 850   ffe_program_unit_pool_ = NULL;
 851 }
 852
 853 /* ffe_terminate_3 -- Terminate the FFE after seeing any program unit END
 854
 855    ffe_terminate_3();  */
 856
 857 void
 858 ffe_terminate_3 ()
 859 {
 860   ffe_count_4 = 0;
 861   ffe_in_3 = FALSE;
 862
 863   ffebad_terminate_3 ();
 864   ffebit_terminate_3 ();
 865   ffebld_terminate_3 ();
 866   ffecom_terminate_3 ();
 867   ffedata_terminate_3 ();
 868   ffeequiv_terminate_3 ();
 869   ffeexpr_terminate_3 ();
 870   ffeglobal_terminate_3 ();
 871   ffeimplic_terminate_3 ();
 872   ffeinfo_terminate_3 ();
 873   ffeintrin_terminate_3 ();
 874   ffelab_terminate_3 ();
 875   ffelex_terminate_3 ();
 876   ffename_terminate_3 ();
 877   ffesrc_terminate_3 ();
 878   ffest_terminate_3 ();
 879   ffestorag_terminate_3 ();
 880   ffesymbol_terminate_3 ();
 881   ffetarget_terminate_3 ();
 882   ffetype_terminate_3 ();
 883   ffewhere_terminate_3 ();
 884
 885   assert (ffe_any_unit_pool_ != NULL);
 886   malloc_pool_kill (ffe_any_unit_pool_);
 887   ffe_any_unit_pool_ = NULL;
 888 }
 889
 890 /* ffe_terminate_4 -- Terminate the FFE after seeing sfunc def expression
 891
 892    ffe_terminate_4();  */
 893
 894 void
 895 ffe_terminate_4 ()
 896 {
 897   ffe_in_4 = FALSE;
 898
 899   ffebad_terminate_4 ();
 900   ffebit_terminate_4 ();
 901   ffebld_terminate_4 ();
 902   ffecom_terminate_4 ();
 903   ffedata_terminate_4 ();
 904   ffeequiv_terminate_4 ();
 905   ffeexpr_terminate_4 ();
 906   ffeglobal_terminate_4 ();
 907   ffeimplic_terminate_4 ();
 908   ffeinfo_terminate_4 ();
 909   ffeintrin_terminate_4 ();
 910   ffelab_terminate_4 ();
 911   ffelex_terminate_4 ();
 912   ffename_terminate_4 ();
 913   ffesrc_terminate_4 ();
 914   ffest_terminate_4 ();
 915   ffestorag_terminate_4 ();
 916   ffesymbol_terminate_4 ();
 917   ffetarget_terminate_4 ();
 918   ffetype_terminate_4 ();
 919   ffewhere_terminate_4 ();
 920 }