gcc/langhooks-def.h

   1 /* Default macros to initialize the lang_hooks data structure.
   2    Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3    Contributed by Alexandre Oliva  <aoliva@redhat.com>
   4
   5 This file is part of GCC.
   6
   7 GCC 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 GCC 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 GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef GCC_LANG_HOOKS_DEF_H
  23 #define GCC_LANG_HOOKS_DEF_H
  24
  25 #include "hooks.h"
  26
  27 struct diagnostic_context;
  28
  29 /* Provide a hook routine for alias sets that always returns 1.  This is
  30    used by languages that haven't deal with alias sets yet.  */
  31 extern HOST_WIDE_INT hook_get_alias_set_0 (tree);
  32
  33 /* Note to creators of new hooks:
  34
  35    The macros in this file should NOT be surrounded by a
  36    #ifdef...#endif pair, since this file declares the defaults.  Each
  37    front end overrides any hooks it wishes to, in the file containing
  38    its struct lang_hooks, AFTER including this file.  */
  39
  40 /* See langhooks.h for the definition and documentation of each hook.  */
  41
  42 extern void lhd_do_nothing (void);
  43 extern void lhd_do_nothing_t (tree);
  44 extern void lhd_do_nothing_i (int);
  45 extern void lhd_do_nothing_f (struct function *);
  46 extern bool lhd_post_options (const char **);
  47 extern HOST_WIDE_INT lhd_get_alias_set (tree);
  48 extern tree lhd_return_tree (tree);
  49 extern tree lhd_return_null_tree_v (void);
  50 extern tree lhd_return_null_tree (tree);
  51 extern tree lhd_do_nothing_iii_return_null_tree (int, int, int);
  52 extern int lhd_safe_from_p (rtx, tree);
  53 extern int lhd_staticp (tree);
  54 extern int lhd_unsafe_for_reeval (tree);
  55 extern void lhd_print_tree_nothing (FILE *, tree, int);
  56 extern const char *lhd_decl_printable_name (tree, int);
  57 extern int lhd_types_compatible_p (tree, tree);
  58 extern rtx lhd_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
  59 extern int lhd_expand_decl (tree);
  60 extern void lhd_print_error_function (struct diagnostic_context *,
  61                                       const char *);
  62 extern void lhd_set_decl_assembler_name (tree);
  63 extern bool lhd_can_use_bit_fields_p (void);
  64 extern bool lhd_warn_unused_global_decl (tree);
  65 extern void lhd_incomplete_type_error (tree, tree);
  66 extern tree lhd_type_promotes_to (tree);
  67 extern void lhd_register_builtin_type (tree, const char *);
  68 extern bool lhd_decl_ok_for_sibcall (tree);
  69 extern tree lhd_expr_size (tree);
  70 extern bool lhd_decl_uninit (tree);
  71 extern tree lhd_get_callee_fndecl (tree);
  72 extern size_t lhd_tree_size (enum tree_code);
  73
  74 /* Declarations of default tree inlining hooks.  */
  75 extern tree lhd_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
  76                                              void *, void *);
  77 extern int lhd_tree_inlining_cannot_inline_tree_fn (tree *);
  78 extern int lhd_tree_inlining_disregard_inline_limits (tree);
  79 extern tree lhd_tree_inlining_add_pending_fn_decls (void *, tree);
  80 extern int lhd_tree_inlining_auto_var_in_fn_p (tree, tree);
  81 extern tree lhd_tree_inlining_copy_res_decl_for_inlining (tree, tree, tree,
  82                                                           void *, int *, tree);
  83 extern int lhd_tree_inlining_anon_aggr_type_p (tree);
  84 extern int lhd_tree_inlining_start_inlining (tree);
  85 extern void lhd_tree_inlining_end_inlining (tree);
  86 extern tree lhd_tree_inlining_convert_parm_for_inlining (tree, tree, tree, int);
  87 extern void lhd_initialize_diagnostics (struct diagnostic_context *);
  88 extern tree lhd_callgraph_analyze_expr (tree *, int *, tree);
  89
  90
  91 /* Declarations for tree gimplification hooks.  */
  92 extern int lhd_gimplify_expr (tree *, tree *, tree *);
  93
  94 #define LANG_HOOKS_NAME                 "GNU unknown"
  95 #define LANG_HOOKS_IDENTIFIER_SIZE      sizeof (struct lang_identifier)
  96 #define LANG_HOOKS_INIT                 hook_bool_void_false
  97 #define LANG_HOOKS_FINISH               lhd_do_nothing
  98 #define LANG_HOOKS_PARSE_FILE           lhd_do_nothing_i
  99 #define LANG_HOOKS_CLEAR_BINDING_STACK  lhd_do_nothing
 100 #define LANG_HOOKS_INIT_OPTIONS         hook_uint_uint_constcharptrptr_0
 101 #define LANG_HOOKS_INITIALIZE_DIAGNOSTICS lhd_initialize_diagnostics
 102 #define LANG_HOOKS_HANDLE_OPTION        hook_int_size_t_constcharptr_int_0
 103 #define LANG_HOOKS_MISSING_ARGUMENT     hook_bool_constcharptr_size_t_false
 104 #define LANG_HOOKS_POST_OPTIONS         lhd_post_options
 105 #define LANG_HOOKS_GET_ALIAS_SET        lhd_get_alias_set
 106 #define LANG_HOOKS_EXPAND_CONSTANT      lhd_return_tree
 107 #define LANG_HOOKS_EXPAND_EXPR          lhd_expand_expr
 108 #define LANG_HOOKS_EXPAND_DECL          lhd_expand_decl
 109 #define LANG_HOOKS_SAFE_FROM_P          lhd_safe_from_p
 110 #define LANG_HOOKS_FINISH_INCOMPLETE_DECL lhd_do_nothing_t
 111 #define LANG_HOOKS_UNSAFE_FOR_REEVAL    lhd_unsafe_for_reeval
 112 #define LANG_HOOKS_STATICP              lhd_staticp
 113 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL lhd_do_nothing_t
 114 #define LANG_HOOKS_UNSAVE_EXPR_NOW      lhd_unsave_expr_now
 115 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME lhd_set_decl_assembler_name
 116 #define LANG_HOOKS_CAN_USE_BIT_FIELDS_P lhd_can_use_bit_fields_p
 117 #define LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS false
 118 #define LANG_HOOKS_HONOR_READONLY       false
 119 #define LANG_HOOKS_NO_BODY_BLOCKS       false
 120 #define LANG_HOOKS_PRINT_STATISTICS     lhd_do_nothing
 121 #define LANG_HOOKS_PRINT_XNODE          lhd_print_tree_nothing
 122 #define LANG_HOOKS_PRINT_DECL           lhd_print_tree_nothing
 123 #define LANG_HOOKS_PRINT_TYPE           lhd_print_tree_nothing
 124 #define LANG_HOOKS_PRINT_IDENTIFIER     lhd_print_tree_nothing
 125 #define LANG_HOOKS_PRINT_ERROR_FUNCTION lhd_print_error_function
 126 #define LANG_HOOKS_DECL_PRINTABLE_NAME  lhd_decl_printable_name
 127 #define LANG_HOOKS_GET_CALLEE_FNDECL    lhd_return_null_tree
 128 #define LANG_HOOKS_EXPR_SIZE            lhd_expr_size
 129 #define LANG_HOOKS_TREE_SIZE            lhd_tree_size
 130 #define LANG_HOOKS_TYPES_COMPATIBLE_P   lhd_types_compatible_p
 131
 132 #define LANG_HOOKS_FUNCTION_INIT        lhd_do_nothing_f
 133 #define LANG_HOOKS_FUNCTION_FINAL       lhd_do_nothing_f
 134 #define LANG_HOOKS_FUNCTION_ENTER_NESTED lhd_do_nothing_f
 135 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED lhd_do_nothing_f
 136 #define LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P hook_bool_tree_true
 137
 138 /* Attribute hooks.  */
 139 #define LANG_HOOKS_ATTRIBUTE_TABLE              NULL
 140 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE       NULL
 141 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE       NULL
 142
 143 /* Tree inlining hooks.  */
 144 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES lhd_tree_inlining_walk_subtrees
 145 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
 146   lhd_tree_inlining_cannot_inline_tree_fn
 147 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
 148   lhd_tree_inlining_disregard_inline_limits
 149 #define LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS \
 150   lhd_tree_inlining_add_pending_fn_decls
 151 #define LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P \
 152   lhd_tree_inlining_auto_var_in_fn_p
 153 #define LANG_HOOKS_TREE_INLINING_COPY_RES_DECL_FOR_INLINING \
 154   lhd_tree_inlining_copy_res_decl_for_inlining
 155 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
 156   lhd_tree_inlining_anon_aggr_type_p
 157 #define LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P \
 158   hook_bool_tree_tree_false
 159 #define LANG_HOOKS_TREE_INLINING_START_INLINING \
 160   lhd_tree_inlining_start_inlining
 161 #define LANG_HOOKS_TREE_INLINING_END_INLINING \
 162   lhd_tree_inlining_end_inlining
 163 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 164   lhd_tree_inlining_convert_parm_for_inlining
 165
 166 #define LANG_HOOKS_TREE_INLINING_INITIALIZER { \
 167   LANG_HOOKS_TREE_INLINING_WALK_SUBTREES, \
 168   LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN, \
 169   LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS, \
 170   LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS, \
 171   LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P, \
 172   LANG_HOOKS_TREE_INLINING_COPY_RES_DECL_FOR_INLINING, \
 173   LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P, \
 174   LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P, \
 175   LANG_HOOKS_TREE_INLINING_START_INLINING, \
 176   LANG_HOOKS_TREE_INLINING_END_INLINING, \
 177   LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 178 }
 179
 180 #define LANG_HOOKS_CALLGRAPH_ANALYZE_EXPR lhd_callgraph_analyze_expr
 181 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION NULL
 182
 183 #define LANG_HOOKS_CALLGRAPH_INITIALIZER { \
 184   LANG_HOOKS_CALLGRAPH_ANALYZE_EXPR, \
 185   LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION, \
 186 }
 187
 188 #define LANG_HOOKS_FUNCTION_INITIALIZER {       \
 189   LANG_HOOKS_FUNCTION_INIT,                     \
 190   LANG_HOOKS_FUNCTION_FINAL,                    \
 191   LANG_HOOKS_FUNCTION_ENTER_NESTED,             \
 192   LANG_HOOKS_FUNCTION_LEAVE_NESTED,             \
 193   LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P     \
 194 }
 195
 196 /* Hooks for tree gimplification.  */
 197 #define LANG_HOOKS_GIMPLIFY_EXPR lhd_gimplify_expr
 198 #define LANG_HOOKS_FOLD_OBJ_TYPE_REF NULL
 199
 200 /* Tree dump hooks.  */
 201 extern bool lhd_tree_dump_dump_tree (void *, tree);
 202 extern int lhd_tree_dump_type_quals (tree);
 203 extern tree lhd_make_node (enum tree_code);
 204
 205 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN lhd_tree_dump_dump_tree
 206 #define LANG_HOOKS_TREE_DUMP_TYPE_QUALS_FN lhd_tree_dump_type_quals
 207
 208 #define LANG_HOOKS_TREE_DUMP_INITIALIZER { \
 209   LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN, \
 210   LANG_HOOKS_TREE_DUMP_TYPE_QUALS_FN \
 211 }
 212
 213 /* Types hooks.  There are no reasonable defaults for most of them,
 214    so we create a compile-time error instead.  */
 215 #define LANG_HOOKS_MAKE_TYPE lhd_make_node
 216 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR lhd_incomplete_type_error
 217 #define LANG_HOOKS_TYPE_PROMOTES_TO lhd_type_promotes_to
 218 #define LANG_HOOKS_REGISTER_BUILTIN_TYPE lhd_register_builtin_type
 219 #define LANG_HOOKS_TYPE_MAX_SIZE        lhd_return_null_tree
 220 #define LANG_HOOKS_HASH_TYPES           true
 221
 222 #define LANG_HOOKS_FOR_TYPES_INITIALIZER { \
 223   LANG_HOOKS_MAKE_TYPE, \
 224   LANG_HOOKS_TYPE_FOR_MODE, \
 225   LANG_HOOKS_TYPE_FOR_SIZE, \
 226   LANG_HOOKS_UNSIGNED_TYPE, \
 227   LANG_HOOKS_SIGNED_TYPE, \
 228   LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE, \
 229   LANG_HOOKS_TYPE_PROMOTES_TO, \
 230   LANG_HOOKS_REGISTER_BUILTIN_TYPE, \
 231   LANG_HOOKS_INCOMPLETE_TYPE_ERROR, \
 232   LANG_HOOKS_TYPE_MAX_SIZE, \
 233   LANG_HOOKS_HASH_TYPES \
 234 }
 235
 236 /* Declaration hooks.  */
 237 #define LANG_HOOKS_GLOBAL_BINDINGS_P global_bindings_p
 238 #define LANG_HOOKS_INSERT_BLOCK insert_block
 239 #define LANG_HOOKS_PUSHDECL     pushdecl
 240 #define LANG_HOOKS_GETDECLS     getdecls
 241 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL lhd_warn_unused_global_decl
 242 #define LANG_HOOKS_WRITE_GLOBALS write_global_declarations
 243 #define LANG_HOOKS_PREPARE_ASSEMBLE_VARIABLE NULL
 244 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL  lhd_decl_ok_for_sibcall
 245
 246 #define LANG_HOOKS_DECLS { \
 247   LANG_HOOKS_GLOBAL_BINDINGS_P, \
 248   LANG_HOOKS_INSERT_BLOCK, \
 249   LANG_HOOKS_PUSHDECL, \
 250   LANG_HOOKS_GETDECLS, \
 251   LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL, \
 252   LANG_HOOKS_WRITE_GLOBALS, \
 253   LANG_HOOKS_PREPARE_ASSEMBLE_VARIABLE, \
 254   LANG_HOOKS_DECL_OK_FOR_SIBCALL, \
 255 }
 256
 257 /* The whole thing.  The structure is defined in langhooks.h.  */
 258 #define LANG_HOOKS_INITIALIZER { \
 259   LANG_HOOKS_NAME, \
 260   LANG_HOOKS_IDENTIFIER_SIZE, \
 261   LANG_HOOKS_TREE_SIZE, \
 262   LANG_HOOKS_INIT_OPTIONS, \
 263   LANG_HOOKS_INITIALIZE_DIAGNOSTICS, \
 264   LANG_HOOKS_HANDLE_OPTION, \
 265   LANG_HOOKS_MISSING_ARGUMENT, \
 266   LANG_HOOKS_POST_OPTIONS, \
 267   LANG_HOOKS_INIT, \
 268   LANG_HOOKS_FINISH, \
 269   LANG_HOOKS_PARSE_FILE, \
 270   LANG_HOOKS_CLEAR_BINDING_STACK, \
 271   LANG_HOOKS_GET_ALIAS_SET, \
 272   LANG_HOOKS_EXPAND_CONSTANT, \
 273   LANG_HOOKS_EXPAND_EXPR, \
 274   LANG_HOOKS_EXPAND_DECL, \
 275   LANG_HOOKS_TRUTHVALUE_CONVERSION, \
 276   LANG_HOOKS_SAFE_FROM_P, \
 277   LANG_HOOKS_FINISH_INCOMPLETE_DECL, \
 278   LANG_HOOKS_UNSAFE_FOR_REEVAL, \
 279   LANG_HOOKS_MARK_ADDRESSABLE, \
 280   LANG_HOOKS_STATICP, \
 281   LANG_HOOKS_DUP_LANG_SPECIFIC_DECL, \
 282   LANG_HOOKS_UNSAVE_EXPR_NOW, \
 283   LANG_HOOKS_SET_DECL_ASSEMBLER_NAME, \
 284   LANG_HOOKS_CAN_USE_BIT_FIELDS_P, \
 285   LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS, \
 286   LANG_HOOKS_HONOR_READONLY, \
 287   LANG_HOOKS_NO_BODY_BLOCKS, \
 288   LANG_HOOKS_PRINT_STATISTICS, \
 289   LANG_HOOKS_PRINT_XNODE, \
 290   LANG_HOOKS_PRINT_DECL, \
 291   LANG_HOOKS_PRINT_TYPE, \
 292   LANG_HOOKS_PRINT_IDENTIFIER, \
 293   LANG_HOOKS_DECL_PRINTABLE_NAME, \
 294   LANG_HOOKS_TYPES_COMPATIBLE_P, \
 295   LANG_HOOKS_GET_CALLEE_FNDECL, \
 296   LANG_HOOKS_PRINT_ERROR_FUNCTION, \
 297   LANG_HOOKS_EXPR_SIZE, \
 298   LANG_HOOKS_ATTRIBUTE_TABLE, \
 299   LANG_HOOKS_COMMON_ATTRIBUTE_TABLE, \
 300   LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE, \
 301   LANG_HOOKS_FUNCTION_INITIALIZER, \
 302   LANG_HOOKS_TREE_INLINING_INITIALIZER, \
 303   LANG_HOOKS_CALLGRAPH_INITIALIZER, \
 304   LANG_HOOKS_TREE_DUMP_INITIALIZER, \
 305   LANG_HOOKS_DECLS, \
 306   LANG_HOOKS_FOR_TYPES_INITIALIZER, \
 307   LANG_HOOKS_GIMPLIFY_EXPR, \
 308   LANG_HOOKS_FOLD_OBJ_TYPE_REF, \
 309 }
 310
 311 #endif /* GCC_LANG_HOOKS_DEF_H */