gcc/f/top.c

   1 /* top.c -- Implementation File (module.c template V1.0)
   2    Copyright (C) 1995, 1996, 1997, 1999 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             ffe_set_fixed_line_length (0);
 468           else if (ffe_is_digit_string_ (len))
 469             ffe_set_fixed_line_length (atol (len));
 470           else
 471             return 0;
 472         }
 473       else
 474         return 0;
 475     }
 476   else if (opt[1] == 'W')
 477     {
 478       if (!strcmp (&opt[2], "comment"))
 479         ; /* cpp handles this one.  */
 480       else if (!strcmp (&opt[2], "no-comment"))
 481         ; /* cpp handles this one.  */
 482       else if (!strcmp (&opt[2], "comments"))
 483         ; /* cpp handles this one.  */
 484       else if (!strcmp (&opt[2], "no-comments"))
 485         ; /* cpp handles this one.  */
 486       else if (!strcmp (&opt[2], "trigraphs"))
 487         ; /* cpp handles this one.  */
 488       else if (!strcmp (&opt[2], "no-trigraphs"))
 489         ; /* cpp handles this one.  */
 490       else if (!strcmp (&opt[2], "import"))
 491         ; /* cpp handles this one.  */
 492       else if (!strcmp (&opt[2], "no-import"))
 493         ; /* cpp handles this one.  */
 494       else if (!strcmp (&opt[2], "globals"))
 495         ffe_set_is_warn_globals (TRUE);
 496       else if (!strcmp (&opt[2], "no-globals"))
 497         ffe_set_is_warn_globals (FALSE);
 498       else if (!strcmp (&opt[2], "implicit"))
 499         ffe_set_is_warn_implicit (TRUE);
 500       else if (!strcmp (&opt[2], "no-implicit"))
 501         ffe_set_is_warn_implicit (FALSE);
 502       else if (!strcmp (&opt[2], "surprising"))
 503         ffe_set_is_warn_surprising (TRUE);
 504       else if (!strcmp (&opt[2], "no-surprising"))
 505         ffe_set_is_warn_surprising (FALSE);
 506       else if (!strcmp (&opt[2], "all"))
 507         {
 508           /* We save the value of warn_uninitialized, since if they put
 509              -Wuninitialized on the command line, we need to generate a
 510              warning about not using it without also specifying -O.  */
 511           if (warn_uninitialized != 1)
 512             warn_uninitialized = 2;
 513           set_Wunused (1);
 514         }
 515       else
 516         return 0;
 517     }
 518   else if (opt[1] == 'I')
 519     return ffecom_decode_include_option (&opt[2]);
 520   else
 521     return 0;
 522
 523   return 1;
 524 }
 525
 526 /* Run the FFE on a source file (not an INCLUDEd file).
 527
 528    Runs the whole shebang.
 529
 530    Prepare and invoke the appropriate lexer.  */
 531
 532 void
 533 ffe_file (ffewhereFile wf, FILE *f)
 534 {
 535   ffe_init_1 ();
 536   ffelex_set_handler ((ffelexHandler) ffest_first);
 537   ffewhere_file_set (wf, TRUE, 0);
 538   if (ffe_is_free_form_)
 539     ffelex_file_free (wf, f);
 540   else
 541     ffelex_file_fixed (wf, f);
 542   ffest_eof ();
 543   ffe_terminate_1 ();
 544 }
 545
 546 /* ffe_init_0 -- Initialize the FFE per image invocation
 547
 548    ffe_init_0();
 549
 550    Performs per-image invocation.  */
 551
 552 void
 553 ffe_init_0 ()
 554 {
 555   ++ffe_count_0;
 556   ffe_in_0 = TRUE;
 557
 558   ffebad_init_0 ();
 559   ffebit_init_0 ();
 560   ffebld_init_0 ();
 561   ffecom_init_0 ();
 562   ffedata_init_0 ();
 563   ffeequiv_init_0 ();
 564   ffeexpr_init_0 ();
 565   ffeglobal_init_0 ();
 566   ffeimplic_init_0 ();
 567   ffeinfo_init_0 ();
 568   ffeintrin_init_0 ();
 569   ffelab_init_0 ();
 570   ffelex_init_0 ();
 571   ffename_init_0 ();
 572   ffesrc_init_0 ();
 573   ffest_init_0 ();
 574   ffestorag_init_0 ();
 575   ffesymbol_init_0 ();
 576   ffetarget_init_0 ();
 577   ffetype_init_0 ();
 578   ffewhere_init_0 ();
 579 }
 580
 581 /* ffe_init_1 -- Initialize the FFE per source file
 582
 583    ffe_init_1();
 584
 585    Performs per-source-file invocation (not including INCLUDEd files).  */
 586
 587 void
 588 ffe_init_1 ()
 589 {
 590   ++ffe_count_1;
 591   ffe_in_1 = TRUE;
 592
 593   assert (ffe_file_pool_ == NULL);
 594   ffe_file_pool_ = malloc_pool_new ("File", malloc_pool_image (), 1024);
 595
 596   ffebad_init_1 ();
 597   ffebit_init_1 ();
 598   ffebld_init_1 ();
 599   ffecom_init_1 ();
 600   ffedata_init_1 ();
 601   ffeequiv_init_1 ();
 602   ffeexpr_init_1 ();
 603   ffeglobal_init_1 ();
 604   ffeimplic_init_1 ();
 605   ffeinfo_init_1 ();
 606   ffeintrin_init_1 ();
 607   ffelab_init_1 ();
 608   ffelex_init_1 ();
 609   ffename_init_1 ();
 610   ffesrc_init_1 ();
 611   ffest_init_1 ();
 612   ffestorag_init_1 ();
 613   ffesymbol_init_1 ();
 614   ffetarget_init_1 ();
 615   ffetype_init_1 ();
 616   ffewhere_init_1 ();
 617
 618   ffe_init_2 ();
 619 }
 620
 621 /* ffe_init_2 -- Initialize the FFE per outer program unit
 622
 623    ffe_init_2();
 624
 625    Performs per-program-unit invocation.  */
 626
 627 void
 628 ffe_init_2 ()
 629 {
 630   ++ffe_count_2;
 631   ffe_in_2 = TRUE;
 632
 633   assert (ffe_program_unit_pool_ == NULL);
 634   ffe_program_unit_pool_ = malloc_pool_new ("Program unit", ffe_file_pool_, 1024);
 635   ffe_is_mainprog_ = FALSE;
 636   ffe_is_saveall_ = !ffe_is_automatic_;
 637
 638   ffebad_init_2 ();
 639   ffebit_init_2 ();
 640   ffebld_init_2 ();
 641   ffecom_init_2 ();
 642   ffedata_init_2 ();
 643   ffeequiv_init_2 ();
 644   ffeexpr_init_2 ();
 645   ffeglobal_init_2 ();
 646   ffeimplic_init_2 ();
 647   ffeinfo_init_2 ();
 648   ffeintrin_init_2 ();
 649   ffelab_init_2 ();
 650   ffelex_init_2 ();
 651   ffename_init_2 ();
 652   ffesrc_init_2 ();
 653   ffest_init_2 ();
 654   ffestorag_init_2 ();
 655   ffesymbol_init_2 ();
 656   ffetarget_init_2 ();
 657   ffetype_init_2 ();
 658   ffewhere_init_2 ();
 659
 660   ffe_init_3 ();
 661 }
 662
 663 /* ffe_init_3 -- Initialize the FFE per any program unit
 664
 665    ffe_init_3();
 666
 667    Performs per-any-unit initialization; does NOT do
 668    per-statement-function-definition initialization (i.e. the chain
 669    of inits, from 0-3, breaks here; level 4 must be invoked independently).  */
 670
 671 void
 672 ffe_init_3 ()
 673 {
 674   ++ffe_count_3;
 675   ffe_in_3 = TRUE;
 676
 677   assert (ffe_any_unit_pool_ == NULL);
 678   ffe_any_unit_pool_ = malloc_pool_new ("Any unit", ffe_program_unit_pool_, 1024);
 679
 680   ffebad_init_3 ();
 681   ffebit_init_3 ();
 682   ffebld_init_3 ();
 683   ffecom_init_3 ();
 684   ffedata_init_3 ();
 685   ffeequiv_init_3 ();
 686   ffeexpr_init_3 ();
 687   ffeglobal_init_3 ();
 688   ffeimplic_init_3 ();
 689   ffeinfo_init_3 ();
 690   ffeintrin_init_3 ();
 691   ffelab_init_3 ();
 692   ffelex_init_3 ();
 693   ffename_init_3 ();
 694   ffesrc_init_3 ();
 695   ffest_init_3 ();
 696   ffestorag_init_3 ();
 697   ffesymbol_init_3 ();
 698   ffetarget_init_3 ();
 699   ffetype_init_3 ();
 700   ffewhere_init_3 ();
 701 }
 702
 703 /* ffe_init_4 -- Initialize the FFE per statement function definition
 704
 705    ffe_init_4();  */
 706
 707 void
 708 ffe_init_4 ()
 709 {
 710   ++ffe_count_4;
 711   ffe_in_4 = TRUE;
 712
 713   ffebad_init_4 ();
 714   ffebit_init_4 ();
 715   ffebld_init_4 ();
 716   ffecom_init_4 ();
 717   ffedata_init_4 ();
 718   ffeequiv_init_4 ();
 719   ffeexpr_init_4 ();
 720   ffeglobal_init_4 ();
 721   ffeimplic_init_4 ();
 722   ffeinfo_init_4 ();
 723   ffeintrin_init_4 ();
 724   ffelab_init_4 ();
 725   ffelex_init_4 ();
 726   ffename_init_4 ();
 727   ffesrc_init_4 ();
 728   ffest_init_4 ();
 729   ffestorag_init_4 ();
 730   ffesymbol_init_4 ();
 731   ffetarget_init_4 ();
 732   ffetype_init_4 ();
 733   ffewhere_init_4 ();
 734 }
 735
 736 /* ffe_terminate_0 -- Terminate the FFE prior to image termination
 737
 738    ffe_terminate_0();  */
 739
 740 void
 741 ffe_terminate_0 ()
 742 {
 743   ffe_count_1 = 0;
 744   ffe_in_0 = FALSE;
 745
 746   ffebad_terminate_0 ();
 747   ffebit_terminate_0 ();
 748   ffebld_terminate_0 ();
 749   ffecom_terminate_0 ();
 750   ffedata_terminate_0 ();
 751   ffeequiv_terminate_0 ();
 752   ffeexpr_terminate_0 ();
 753   ffeglobal_terminate_0 ();
 754   ffeimplic_terminate_0 ();
 755   ffeinfo_terminate_0 ();
 756   ffeintrin_terminate_0 ();
 757   ffelab_terminate_0 ();
 758   ffelex_terminate_0 ();
 759   ffename_terminate_0 ();
 760   ffesrc_terminate_0 ();
 761   ffest_terminate_0 ();
 762   ffestorag_terminate_0 ();
 763   ffesymbol_terminate_0 ();
 764   ffetarget_terminate_0 ();
 765   ffetype_terminate_0 ();
 766   ffewhere_terminate_0 ();
 767 }
 768
 769 /* ffe_terminate_1 -- Terminate the FFE after seeing source file EOF
 770
 771    ffe_terminate_1();  */
 772
 773 void
 774 ffe_terminate_1 ()
 775 {
 776   ffe_count_2 = 0;
 777   ffe_in_1 = FALSE;
 778
 779   ffe_terminate_2 ();
 780
 781   ffebad_terminate_1 ();
 782   ffebit_terminate_1 ();
 783   ffebld_terminate_1 ();
 784   ffecom_terminate_1 ();
 785   ffedata_terminate_1 ();
 786   ffeequiv_terminate_1 ();
 787   ffeexpr_terminate_1 ();
 788   ffeglobal_terminate_1 ();
 789   ffeimplic_terminate_1 ();
 790   ffeinfo_terminate_1 ();
 791   ffeintrin_terminate_1 ();
 792   ffelab_terminate_1 ();
 793   ffelex_terminate_1 ();
 794   ffename_terminate_1 ();
 795   ffesrc_terminate_1 ();
 796   ffest_terminate_1 ();
 797   ffestorag_terminate_1 ();
 798   ffesymbol_terminate_1 ();
 799   ffetarget_terminate_1 ();
 800   ffetype_terminate_1 ();
 801   ffewhere_terminate_1 ();
 802
 803   assert (ffe_file_pool_ != NULL);
 804   malloc_pool_kill (ffe_file_pool_);
 805   ffe_file_pool_ = NULL;
 806 }
 807
 808 /* ffe_terminate_2 -- Terminate the FFE after seeing outer program unit END
 809
 810    ffe_terminate_2();  */
 811
 812 void
 813 ffe_terminate_2 ()
 814 {
 815   ffe_count_3 = 0;
 816   ffe_in_2 = FALSE;
 817
 818   ffe_terminate_3 ();
 819
 820   ffebad_terminate_2 ();
 821   ffebit_terminate_2 ();
 822   ffebld_terminate_2 ();
 823   ffecom_terminate_2 ();
 824   ffedata_terminate_2 ();
 825   ffeequiv_terminate_2 ();
 826   ffeexpr_terminate_2 ();
 827   ffeglobal_terminate_2 ();
 828   ffeimplic_terminate_2 ();
 829   ffeinfo_terminate_2 ();
 830   ffeintrin_terminate_2 ();
 831   ffelab_terminate_2 ();
 832   ffelex_terminate_2 ();
 833   ffename_terminate_2 ();
 834   ffesrc_terminate_2 ();
 835   ffest_terminate_2 ();
 836   ffestorag_terminate_2 ();
 837   ffesymbol_terminate_2 ();
 838   ffetarget_terminate_2 ();
 839   ffetype_terminate_2 ();
 840   ffewhere_terminate_2 ();
 841
 842   assert (ffe_program_unit_pool_ != NULL);
 843   malloc_pool_kill (ffe_program_unit_pool_);
 844   ffe_program_unit_pool_ = NULL;
 845 }
 846
 847 /* ffe_terminate_3 -- Terminate the FFE after seeing any program unit END
 848
 849    ffe_terminate_3();  */
 850
 851 void
 852 ffe_terminate_3 ()
 853 {
 854   ffe_count_4 = 0;
 855   ffe_in_3 = FALSE;
 856
 857   ffebad_terminate_3 ();
 858   ffebit_terminate_3 ();
 859   ffebld_terminate_3 ();
 860   ffecom_terminate_3 ();
 861   ffedata_terminate_3 ();
 862   ffeequiv_terminate_3 ();
 863   ffeexpr_terminate_3 ();
 864   ffeglobal_terminate_3 ();
 865   ffeimplic_terminate_3 ();
 866   ffeinfo_terminate_3 ();
 867   ffeintrin_terminate_3 ();
 868   ffelab_terminate_3 ();
 869   ffelex_terminate_3 ();
 870   ffename_terminate_3 ();
 871   ffesrc_terminate_3 ();
 872   ffest_terminate_3 ();
 873   ffestorag_terminate_3 ();
 874   ffesymbol_terminate_3 ();
 875   ffetarget_terminate_3 ();
 876   ffetype_terminate_3 ();
 877   ffewhere_terminate_3 ();
 878
 879   assert (ffe_any_unit_pool_ != NULL);
 880   malloc_pool_kill (ffe_any_unit_pool_);
 881   ffe_any_unit_pool_ = NULL;
 882 }
 883
 884 /* ffe_terminate_4 -- Terminate the FFE after seeing sfunc def expression
 885
 886    ffe_terminate_4();  */
 887
 888 void
 889 ffe_terminate_4 ()
 890 {
 891   ffe_in_4 = FALSE;
 892
 893   ffebad_terminate_4 ();
 894   ffebit_terminate_4 ();
 895   ffebld_terminate_4 ();
 896   ffecom_terminate_4 ();
 897   ffedata_terminate_4 ();
 898   ffeequiv_terminate_4 ();
 899   ffeexpr_terminate_4 ();
 900   ffeglobal_terminate_4 ();
 901   ffeimplic_terminate_4 ();
 902   ffeinfo_terminate_4 ();
 903   ffeintrin_terminate_4 ();
 904   ffelab_terminate_4 ();
 905   ffelex_terminate_4 ();
 906   ffename_terminate_4 ();
 907   ffesrc_terminate_4 ();
 908   ffest_terminate_4 ();
 909   ffestorag_terminate_4 ();
 910   ffesymbol_terminate_4 ();
 911   ffetarget_terminate_4 ();
 912   ffetype_terminate_4 ();
 913   ffewhere_terminate_4 ();
 914 }