1 /* Language-specific hook definitions for CHILL front end.
2 Copyright (C) 1992, 93, 94, 98, 99, 2000 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
30 /* Type node for boolean types. */
32 tree boolean_type_node
;
34 /* True if STRING(INDEX) yields a CHARS(1) (or BOOLS(1)) rather than
35 a CHAR (or BOOL). Also, makes CHARS(1) similar for CHAR,
36 and BOOLS(1) similar to BOOL. This is for compatibility
37 for the 1984 version of Z.200.*/
38 int flag_old_strings
= 0;
40 /* This is set non-zero to force user input tokens to lower case.
41 This is non-standard. See Z.200, page 8. */
44 /* True if reserved and predefined words ('special' words in the Z.200
45 terminology) are in uppercase. Obviously, this had better not be
46 true if we're ignoring input case. */
49 /* The actual name of the input file, regardless of any #line directives */
50 const char* chill_real_input_filename
;
53 static int deep_const_expr
PARAMS ((tree
));
54 static void chill_print_error_function
PARAMS ((const char *));
56 /* Return 1 if the expression tree given has all
57 constant nodes as its leaves,otherwise. */
63 enum chill_tree_code code
;
70 code
= TREE_CODE (exp
);
71 length
= first_rtl_op (TREE_CODE (exp
));
73 /* constant leaf? return TRUE */
74 if (TREE_CODE_CLASS (code
) == 'c')
77 /* Recursively check next level down. */
78 for (i
= 0; i
< length
; i
++)
79 if (! deep_const_expr (TREE_OPERAND (exp
, i
)))
89 if (TREE_CODE (exp
) == INTEGER_CST
)
91 if (TREE_CODE (exp
) == CONST_DECL
)
92 return const_expr (DECL_INITIAL (exp
));
93 if (TREE_CODE_CLASS (TREE_CODE (exp
)) == 'd'
94 && DECL_INITIAL (exp
) != NULL_TREE
95 && TREE_READONLY (exp
))
96 return DECL_INITIAL (exp
);
97 if (deep_const_expr (exp
))
99 if (TREE_CODE (exp
) != ERROR_MARK
)
100 error ("non-constant expression");
101 return error_mark_node
;
104 /* Each of the functions defined here
105 is an alternative to a function in objc-actions.c. */
107 /* Used by c-lex.c, but only for objc. */
109 lookup_interface (arg
)
110 tree arg ATTRIBUTE_UNUSED
;
116 maybe_objc_comptypes (lhs
, rhs
)
117 tree lhs ATTRIBUTE_UNUSED
, rhs ATTRIBUTE_UNUSED
;
123 maybe_building_objc_message_expr ()
129 recognize_objc_keyword ()
139 /* used by print-tree.c */
142 lang_print_xnode (file
, node
, indent
)
143 FILE *file ATTRIBUTE_UNUSED
;
144 tree node ATTRIBUTE_UNUSED
;
145 int indent ATTRIBUTE_UNUSED
;
152 fatal ("GCC does not yet support XREF");
158 fatal ("GCC does not yet support XREF");
162 * process chill-specific compiler command-line options
163 * do not complain if the option is not recognised
166 lang_decode_option (argc
, argv
)
171 static int explicit_ignore_case
= 0;
172 if (!strcmp(p
, "-lang-chill"))
174 else if (!strcmp (p
, "-fruntime-checking"))
179 else if (!strcmp (p
, "-fno-runtime-checking"))
183 runtime_checking_flag
= 0;
185 else if (!strcmp (p
, "-flocal-loop-counter"))
186 flag_local_loop_counter
= 1;
187 else if (!strcmp (p
, "-fno-local-loop-counter"))
188 flag_local_loop_counter
= 0;
189 else if (!strcmp (p
, "-fold-strings"))
190 flag_old_strings
= 1;
191 else if (!strcmp (p
, "-fno-old-strings"))
192 flag_old_strings
= 0;
193 else if (!strcmp (p
, "-fignore-case"))
195 explicit_ignore_case
= 1;
198 error ("Ignoring case upon input and");
199 error ("making special words uppercase wouldn't work.");
204 else if (!strcmp (p
, "-fno-ignore-case"))
206 else if (!strcmp (p
, "-fspecial_UC"))
208 if (explicit_ignore_case
)
210 error ("Making special words uppercase and");
211 error (" ignoring case upon input wouldn't work.");
214 special_UC
= 1, ignore_case
= 0;
216 else if (!strcmp (p
, "-fspecial_LC"))
218 else if (!strcmp (p
, "-fpack"))
219 maximum_field_alignment
= BITS_PER_UNIT
;
220 else if (!strcmp (p
, "-fno-pack"))
221 maximum_field_alignment
= 0;
222 else if (!strcmp (p
, "-fchill-grant-only"))
224 else if (!strcmp (p
, "-fgrant-only"))
226 /* user has specified a seize-file path */
227 else if (p
[0] == '-' && p
[1] == 'I')
228 register_seize_path (&p
[2]);
229 if (!strcmp(p
, "-itu")) /* Force Z.200 semantics */
231 pedantic
= 1; /* FIXME: new flag name? */
232 flag_local_loop_counter
= 1;
235 return c_decode_option (argc
, argv
);
241 chill_print_error_function (file
)
244 static tree last_error_function
= NULL_TREE
;
245 static struct module
*last_error_module
= NULL
;
247 if (last_error_function
== current_function_decl
248 && last_error_module
== current_module
)
251 last_error_function
= current_function_decl
;
252 last_error_module
= current_module
;
255 fprintf (stderr
, "%s: ", file
);
257 if (current_function_decl
== global_function_decl
258 || current_function_decl
== NULL_TREE
)
260 if (current_module
== NULL
)
261 fprintf (stderr
, "At top level:\n");
263 fprintf (stderr
, "In module %s:\n",
264 IDENTIFIER_POINTER (current_module
->name
));
268 const char *kind
= "function";
269 const char *name
= (*decl_printable_name
) (current_function_decl
, 2);
270 fprintf (stderr
, "In %s `%s':\n", kind
, name
);
274 /* Print an error message for invalid use of an incomplete type.
275 VALUE is the expression that was used (or 0 if that isn't known)
276 and TYPE is the type that was invalid. */
279 incomplete_type_error (value
, type
)
280 tree value ATTRIBUTE_UNUSED
;
281 tree type ATTRIBUTE_UNUSED
;
283 error ("internal error - use of undefined type");
286 /* Return the typed-based alias set for T, which may be an expression
287 or a type. Return -1 if we don't do anything special. */
290 lang_get_alias_set (t
)
293 /* ??? Need to figure out what the rules are. Certainly we'd need
294 to handle union-like things, and probably variant records.
295 Until then, turn off type-based aliasing completely. */
302 chill_real_input_filename
= input_filename
;
304 /* the beginning of the file is a new line; check for # */
305 /* With luck, we discover the real source file's name from that
306 and put it in input_filename. */
308 ungetc (check_newline (), finput
);
310 /* set default grant file */
311 set_default_grant_file ();
313 print_error_function
= chill_print_error_function
;