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