1 /* Language-specific hook definitions for CHILL front end.
2 Copyright (C) 1992, 1993, 1994, 1998, 1999, 2000
3 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC 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)
12 GNU CC 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.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
33 /* Type node for boolean types. */
35 tree boolean_type_node;
37 /* True if STRING(INDEX) yields a CHARS(1) (or BOOLS(1)) rather than
38 a CHAR (or BOOL). Also, makes CHARS(1) similar for CHAR,
39 and BOOLS(1) similar to BOOL. This is for compatibility
40 for the 1984 version of Z.200.*/
41 int flag_old_strings = 0;
43 /* This is set non-zero to force user input tokens to lower case.
44 This is non-standard. See Z.200, page 8. */
47 /* True if reserved and predefined words ('special' words in the Z.200
48 terminology) are in uppercase. Obviously, this had better not be
49 true if we're ignoring input case. */
52 /* The actual name of the input file, regardless of any #line directives */
53 const char* chill_real_input_filename;
56 static int deep_const_expr PARAMS ((tree));
57 static void chill_print_error_function PARAMS ((const char *));
59 /* Return 1 if the expression tree given has all
60 constant nodes as its leaves,otherwise. */
66 enum chill_tree_code code;
73 code = TREE_CODE (exp);
74 length = first_rtl_op (TREE_CODE (exp));
76 /* constant leaf? return TRUE */
77 if (TREE_CODE_CLASS (code) == 'c')
80 /* Recursively check next level down. */
81 for (i = 0; i < length; i++)
82 if (! deep_const_expr (TREE_OPERAND (exp, i)))
92 if (TREE_CODE (exp) == INTEGER_CST)
94 if (TREE_CODE (exp) == CONST_DECL)
95 return const_expr (DECL_INITIAL (exp));
96 if (TREE_CODE_CLASS (TREE_CODE (exp)) == 'd'
97 && DECL_INITIAL (exp) != NULL_TREE
98 && TREE_READONLY (exp))
99 return DECL_INITIAL (exp);
100 if (deep_const_expr (exp))
102 if (TREE_CODE (exp) != ERROR_MARK)
103 error ("non-constant expression");
104 return error_mark_node;
107 /* Each of the functions defined here
108 is an alternative to a function in objc-actions.c. */
110 /* Used by c-lex.c, but only for objc. */
112 lookup_interface (arg)
113 tree arg ATTRIBUTE_UNUSED;
119 maybe_objc_comptypes (lhs, rhs)
120 tree lhs ATTRIBUTE_UNUSED, rhs ATTRIBUTE_UNUSED;
126 maybe_building_objc_message_expr ()
132 recognize_objc_keyword ()
142 /* used by print-tree.c */
145 lang_print_xnode (file, node, indent)
146 FILE *file ATTRIBUTE_UNUSED;
147 tree node ATTRIBUTE_UNUSED;
148 int indent ATTRIBUTE_UNUSED;
155 fatal ("GCC does not yet support XREF");
161 fatal ("GCC does not yet support XREF");
165 * process chill-specific compiler command-line options
166 * do not complain if the option is not recognised
169 lang_decode_option (argc, argv)
174 static int explicit_ignore_case = 0;
175 if (!strcmp(p, "-lang-chill"))
177 else if (!strcmp (p, "-fruntime-checking"))
182 else if (!strcmp (p, "-fno-runtime-checking"))
186 runtime_checking_flag = 0;
188 else if (!strcmp (p, "-flocal-loop-counter"))
189 flag_local_loop_counter = 1;
190 else if (!strcmp (p, "-fno-local-loop-counter"))
191 flag_local_loop_counter = 0;
192 else if (!strcmp (p, "-fold-strings"))
193 flag_old_strings = 1;
194 else if (!strcmp (p, "-fno-old-strings"))
195 flag_old_strings = 0;
196 else if (!strcmp (p, "-fignore-case"))
198 explicit_ignore_case = 1;
201 error ("Ignoring case upon input and");
202 error ("making special words uppercase wouldn't work.");
207 else if (!strcmp (p, "-fno-ignore-case"))
209 else if (!strcmp (p, "-fspecial_UC"))
211 if (explicit_ignore_case)
213 error ("Making special words uppercase and");
214 error (" ignoring case upon input wouldn't work.");
217 special_UC = 1, ignore_case = 0;
219 else if (!strcmp (p, "-fspecial_LC"))
221 else if (!strcmp (p, "-fpack"))
222 maximum_field_alignment = BITS_PER_UNIT;
223 else if (!strcmp (p, "-fno-pack"))
224 maximum_field_alignment = 0;
225 else if (!strcmp (p, "-fchill-grant-only"))
227 else if (!strcmp (p, "-fgrant-only"))
229 /* user has specified a seize-file path */
230 else if (p[0] == '-' && p[1] == 'I')
231 register_seize_path (&p[2]);
232 if (!strcmp(p, "-itu")) /* Force Z.200 semantics */
234 pedantic = 1; /* FIXME: new flag name? */
235 flag_local_loop_counter = 1;
238 return c_decode_option (argc, argv);
244 chill_print_error_function (file)
247 static tree last_error_function = NULL_TREE;
248 static struct module *last_error_module = NULL;
250 if (last_error_function == current_function_decl
251 && last_error_module == current_module)
254 last_error_function = current_function_decl;
255 last_error_module = current_module;
258 fprintf (stderr, "%s: ", file);
260 if (current_function_decl == global_function_decl
261 || current_function_decl == NULL_TREE)
263 if (current_module == NULL)
264 fprintf (stderr, "At top level:\n");
266 fprintf (stderr, "In module %s:\n",
267 IDENTIFIER_POINTER (current_module->name));
271 const char *kind = "function";
272 const char *name = (*decl_printable_name) (current_function_decl, 2);
273 fprintf (stderr, "In %s `%s':\n", kind, name);
277 /* Print an error message for invalid use of an incomplete type.
278 VALUE is the expression that was used (or 0 if that isn't known)
279 and TYPE is the type that was invalid. */
282 incomplete_type_error (value, type)
283 tree value ATTRIBUTE_UNUSED;
284 tree type ATTRIBUTE_UNUSED;
286 error ("internal error - use of undefined type");
289 /* Return the typed-based alias set for T, which may be an expression
290 or a type. Return -1 if we don't do anything special. */
293 lang_get_alias_set (t)
294 tree t ATTRIBUTE_UNUSED;
296 /* ??? Need to figure out what the rules are. Certainly we'd need
297 to handle union-like things, and probably variant records.
298 Until then, turn off type-based aliasing completely. */
305 chill_real_input_filename = input_filename;
307 /* the beginning of the file is a new line; check for # */
308 /* With luck, we discover the real source file's name from that
309 and put it in input_filename. */
311 ungetc (check_newline (), finput);
313 /* set default grant file */
314 set_default_grant_file ();
316 print_error_function = chill_print_error_function;