gcc/langhooks-def.h

   1 /* Default macros to initialize the lang_hooks data structure.
   2    Copyright 2001, 2002 Free Software Foundation, Inc.
   3    Contributed by Alexandre Oliva  <aoliva@redhat.com>
   4
   5 This file is part of GNU CC.
   6
   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)
  10 any later version.
  11
  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.
  16
  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.  */
  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       PARAMS ((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    Prefix all default hooks with "lhd_".  */
  41
  42 /* See langhooks.h for the definition and documentation of each hook.  */
  43
  44 extern void lhd_do_nothing PARAMS ((void));
  45 extern void lhd_do_nothing_t PARAMS ((tree));
  46 extern void lhd_do_nothing_i PARAMS ((int));
  47 extern void lhd_do_nothing_f PARAMS ((struct function *));
  48 extern int lhd_decode_option PARAMS ((int, char **));
  49 extern bool lhd_post_options PARAMS ((const char **));
  50 extern HOST_WIDE_INT lhd_get_alias_set PARAMS ((tree));
  51 extern tree lhd_return_tree PARAMS ((tree));
  52 extern tree lhd_return_null_tree PARAMS ((tree));
  53 extern int lhd_safe_from_p PARAMS ((rtx, tree));
  54 extern int lhd_staticp PARAMS ((tree));
  55 extern int lhd_unsafe_for_reeval PARAMS ((tree));
  56 extern void lhd_clear_binding_stack PARAMS ((void));
  57 extern void lhd_print_tree_nothing PARAMS ((FILE *, tree, int));
  58 extern const char *lhd_decl_printable_name PARAMS ((tree, int));
  59 extern rtx lhd_expand_expr PARAMS ((tree, rtx, enum machine_mode, int));
  60 extern void lhd_print_error_function PARAMS ((struct diagnostic_context *,
  61                                               const char *));
  62 extern void lhd_set_decl_assembler_name PARAMS ((tree));
  63 extern bool lhd_can_use_bit_fields_p PARAMS ((void));
  64 extern bool lhd_warn_unused_global_decl PARAMS ((tree));
  65 extern void lhd_incomplete_type_error PARAMS ((tree, tree));
  66 extern tree lhd_type_promotes_to PARAMS ((tree));
  67 extern tree lhd_expr_size PARAMS ((tree));
  68
  69 /* Declarations of default tree inlining hooks.  */
  70 tree lhd_tree_inlining_walk_subtrees            PARAMS ((tree *, int *,
  71                                                          walk_tree_fn,
  72                                                          void *, void *));
  73 int lhd_tree_inlining_cannot_inline_tree_fn     PARAMS ((tree *));
  74 int lhd_tree_inlining_disregard_inline_limits   PARAMS ((tree));
  75 tree lhd_tree_inlining_add_pending_fn_decls     PARAMS ((void *, tree));
  76 int lhd_tree_inlining_tree_chain_matters_p      PARAMS ((tree));
  77 int lhd_tree_inlining_auto_var_in_fn_p          PARAMS ((tree, tree));
  78 tree lhd_tree_inlining_copy_res_decl_for_inlining PARAMS ((tree, tree,
  79                                                            tree, void *,
  80                                                            int *, tree));
  81 int lhd_tree_inlining_anon_aggr_type_p          PARAMS ((tree));
  82 int lhd_tree_inlining_start_inlining            PARAMS ((tree));
  83 void lhd_tree_inlining_end_inlining             PARAMS ((tree));
  84 tree lhd_tree_inlining_convert_parm_for_inlining PARAMS ((tree, tree, tree));
  85
  86 void write_global_declarations PARAMS ((void));
  87
  88 #define LANG_HOOKS_NAME                 "GNU unknown"
  89 #define LANG_HOOKS_IDENTIFIER_SIZE      sizeof (struct lang_identifier)
  90 #define LANG_HOOKS_INIT                 hook_bool_void_false
  91 #define LANG_HOOKS_FINISH               lhd_do_nothing
  92 #define LANG_HOOKS_PARSE_FILE           lhd_do_nothing_i
  93 #define LANG_HOOKS_CLEAR_BINDING_STACK  lhd_clear_binding_stack
  94 #define LANG_HOOKS_INIT_OPTIONS         lhd_do_nothing
  95 #define LANG_HOOKS_DECODE_OPTION        lhd_decode_option
  96 #define LANG_HOOKS_POST_OPTIONS         lhd_post_options
  97 #define LANG_HOOKS_GET_ALIAS_SET        lhd_get_alias_set
  98 #define LANG_HOOKS_EXPAND_CONSTANT      lhd_return_tree
  99 #define LANG_HOOKS_EXPAND_EXPR          lhd_expand_expr
 100 #define LANG_HOOKS_SAFE_FROM_P          lhd_safe_from_p
 101 #define LANG_HOOKS_FINISH_INCOMPLETE_DECL lhd_do_nothing_t
 102 #define LANG_HOOKS_UNSAFE_FOR_REEVAL    lhd_unsafe_for_reeval
 103 #define LANG_HOOKS_STATICP              lhd_staticp
 104 #define LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES lhd_do_nothing_t
 105 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL lhd_do_nothing_t
 106 #define LANG_HOOKS_UNSAVE_EXPR_NOW      lhd_unsave_expr_now
 107 #define LANG_HOOKS_MAYBE_BUILD_CLEANUP  lhd_return_null_tree
 108 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME lhd_set_decl_assembler_name
 109 #define LANG_HOOKS_CAN_USE_BIT_FIELDS_P lhd_can_use_bit_fields_p
 110 #define LANG_HOOKS_HONOR_READONLY       false
 111 #define LANG_HOOKS_PRINT_STATISTICS     lhd_do_nothing
 112 #define LANG_HOOKS_PRINT_XNODE          lhd_print_tree_nothing
 113 #define LANG_HOOKS_PRINT_DECL           lhd_print_tree_nothing
 114 #define LANG_HOOKS_PRINT_TYPE           lhd_print_tree_nothing
 115 #define LANG_HOOKS_PRINT_IDENTIFIER     lhd_print_tree_nothing
 116 #define LANG_HOOKS_PRINT_ERROR_FUNCTION lhd_print_error_function
 117 #define LANG_HOOKS_DECL_PRINTABLE_NAME  lhd_decl_printable_name
 118 #define LANG_HOOKS_EXPR_SIZE            lhd_expr_size
 119
 120 #define LANG_HOOKS_FUNCTION_INIT        lhd_do_nothing_f
 121 #define LANG_HOOKS_FUNCTION_FINAL       lhd_do_nothing_f
 122 #define LANG_HOOKS_FUNCTION_ENTER_NESTED lhd_do_nothing_f
 123 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED lhd_do_nothing_f
 124
 125 /* Attribute hooks.  */
 126 #define LANG_HOOKS_ATTRIBUTE_TABLE              NULL
 127 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE       NULL
 128 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE       NULL
 129
 130 /* Tree inlining hooks.  */
 131 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES lhd_tree_inlining_walk_subtrees
 132 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
 133   lhd_tree_inlining_cannot_inline_tree_fn
 134 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
 135   lhd_tree_inlining_disregard_inline_limits
 136 #define LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS \
 137   lhd_tree_inlining_add_pending_fn_decls
 138 #define LANG_HOOKS_TREE_INLINING_TREE_CHAIN_MATTERS_P \
 139   lhd_tree_inlining_tree_chain_matters_p
 140 #define LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P \
 141   lhd_tree_inlining_auto_var_in_fn_p
 142 #define LANG_HOOKS_TREE_INLINING_COPY_RES_DECL_FOR_INLINING \
 143   lhd_tree_inlining_copy_res_decl_for_inlining
 144 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
 145   lhd_tree_inlining_anon_aggr_type_p
 146 #define LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P \
 147   hook_bool_tree_false
 148 #define LANG_HOOKS_TREE_INLINING_START_INLINING \
 149   lhd_tree_inlining_start_inlining
 150 #define LANG_HOOKS_TREE_INLINING_END_INLINING \
 151   lhd_tree_inlining_end_inlining
 152 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 153   lhd_tree_inlining_convert_parm_for_inlining
 154
 155 #define LANG_HOOKS_TREE_INLINING_INITIALIZER { \
 156   LANG_HOOKS_TREE_INLINING_WALK_SUBTREES, \
 157   LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN, \
 158   LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS, \
 159   LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS, \
 160   LANG_HOOKS_TREE_INLINING_TREE_CHAIN_MATTERS_P, \
 161   LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P, \
 162   LANG_HOOKS_TREE_INLINING_COPY_RES_DECL_FOR_INLINING, \
 163   LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P, \
 164   LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P, \
 165   LANG_HOOKS_TREE_INLINING_START_INLINING, \
 166   LANG_HOOKS_TREE_INLINING_END_INLINING, \
 167   LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 168 } \
 169
 170 #define LANG_HOOKS_CALLGRAPH_LOWER_FUNCTION NULL
 171 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION NULL
 172
 173 #define LANG_HOOKS_CALLGRAPH_INITIALIZER { \
 174   LANG_HOOKS_CALLGRAPH_LOWER_FUNCTION, \
 175   LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION, \
 176 } \
 177
 178 #define LANG_HOOKS_FUNCTION_INITIALIZER {       \
 179   LANG_HOOKS_FUNCTION_INIT,                     \
 180   LANG_HOOKS_FUNCTION_FINAL,                    \
 181   LANG_HOOKS_FUNCTION_ENTER_NESTED,             \
 182   LANG_HOOKS_FUNCTION_LEAVE_NESTED              \
 183 }
 184
 185 /* Tree dump hooks.  */
 186 int lhd_tree_dump_dump_tree                     PARAMS ((void *, tree));
 187 int lhd_tree_dump_type_quals                    PARAMS ((tree));
 188
 189 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN lhd_tree_dump_dump_tree
 190 #define LANG_HOOKS_TREE_DUMP_TYPE_QUALS_FN lhd_tree_dump_type_quals
 191
 192 #define LANG_HOOKS_TREE_DUMP_INITIALIZER { \
 193   LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN, \
 194   LANG_HOOKS_TREE_DUMP_TYPE_QUALS_FN \
 195 }
 196
 197 /* Types hooks.  There are no reasonable defaults for most of them,
 198    so we create a compile-time error instead.  */
 199 #define LANG_HOOKS_MAKE_TYPE make_node
 200 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR lhd_incomplete_type_error
 201 #define LANG_HOOKS_TYPE_PROMOTES_TO lhd_type_promotes_to
 202
 203 #define LANG_HOOKS_FOR_TYPES_INITIALIZER { \
 204   LANG_HOOKS_MAKE_TYPE, \
 205   LANG_HOOKS_TYPE_FOR_MODE, \
 206   LANG_HOOKS_TYPE_FOR_SIZE, \
 207   LANG_HOOKS_UNSIGNED_TYPE, \
 208   LANG_HOOKS_SIGNED_TYPE, \
 209   LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE, \
 210   LANG_HOOKS_TYPE_PROMOTES_TO, \
 211   LANG_HOOKS_INCOMPLETE_TYPE_ERROR \
 212 }
 213
 214 /* Declaration hooks.  */
 215 #define LANG_HOOKS_PUSHLEVEL    pushlevel
 216 #define LANG_HOOKS_POPLEVEL     poplevel
 217 #define LANG_HOOKS_GLOBAL_BINDINGS_P global_bindings_p
 218 #define LANG_HOOKS_INSERT_BLOCK insert_block
 219 #define LANG_HOOKS_SET_BLOCK    set_block
 220 #define LANG_HOOKS_PUSHDECL     pushdecl
 221 #define LANG_HOOKS_GETDECLS     getdecls
 222 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL lhd_warn_unused_global_decl
 223 #define LANG_HOOKS_WRITE_GLOBALS write_global_declarations
 224
 225 #define LANG_HOOKS_DECLS { \
 226   LANG_HOOKS_PUSHLEVEL, \
 227   LANG_HOOKS_POPLEVEL, \
 228   LANG_HOOKS_GLOBAL_BINDINGS_P, \
 229   LANG_HOOKS_INSERT_BLOCK, \
 230   LANG_HOOKS_SET_BLOCK, \
 231   LANG_HOOKS_PUSHDECL, \
 232   LANG_HOOKS_GETDECLS, \
 233   LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL, \
 234   LANG_HOOKS_WRITE_GLOBALS \
 235 }
 236
 237 /* The whole thing.  The structure is defined in langhooks.h.  */
 238 #define LANG_HOOKS_INITIALIZER { \
 239   LANG_HOOKS_NAME, \
 240   LANG_HOOKS_IDENTIFIER_SIZE, \
 241   LANG_HOOKS_INIT_OPTIONS, \
 242   LANG_HOOKS_DECODE_OPTION, \
 243   LANG_HOOKS_POST_OPTIONS, \
 244   LANG_HOOKS_INIT, \
 245   LANG_HOOKS_FINISH, \
 246   LANG_HOOKS_PARSE_FILE, \
 247   LANG_HOOKS_CLEAR_BINDING_STACK, \
 248   LANG_HOOKS_GET_ALIAS_SET, \
 249   LANG_HOOKS_EXPAND_CONSTANT, \
 250   LANG_HOOKS_EXPAND_EXPR, \
 251   LANG_HOOKS_TRUTHVALUE_CONVERSION, \
 252   LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES, \
 253   LANG_HOOKS_SAFE_FROM_P, \
 254   LANG_HOOKS_FINISH_INCOMPLETE_DECL, \
 255   LANG_HOOKS_UNSAFE_FOR_REEVAL, \
 256   LANG_HOOKS_MARK_ADDRESSABLE, \
 257   LANG_HOOKS_STATICP, \
 258   LANG_HOOKS_DUP_LANG_SPECIFIC_DECL, \
 259   LANG_HOOKS_UNSAVE_EXPR_NOW, \
 260   LANG_HOOKS_MAYBE_BUILD_CLEANUP, \
 261   LANG_HOOKS_SET_DECL_ASSEMBLER_NAME, \
 262   LANG_HOOKS_CAN_USE_BIT_FIELDS_P, \
 263   LANG_HOOKS_HONOR_READONLY, \
 264   LANG_HOOKS_PRINT_STATISTICS, \
 265   LANG_HOOKS_PRINT_XNODE, \
 266   LANG_HOOKS_PRINT_DECL, \
 267   LANG_HOOKS_PRINT_TYPE, \
 268   LANG_HOOKS_PRINT_IDENTIFIER, \
 269   LANG_HOOKS_DECL_PRINTABLE_NAME, \
 270   LANG_HOOKS_PRINT_ERROR_FUNCTION, \
 271   LANG_HOOKS_EXPR_SIZE, \
 272   LANG_HOOKS_ATTRIBUTE_TABLE, \
 273   LANG_HOOKS_COMMON_ATTRIBUTE_TABLE, \
 274   LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE, \
 275   LANG_HOOKS_FUNCTION_INITIALIZER, \
 276   LANG_HOOKS_TREE_INLINING_INITIALIZER, \
 277   LANG_HOOKS_CALLGRAPH_INITIALIZER, \
 278   LANG_HOOKS_TREE_DUMP_INITIALIZER, \
 279   LANG_HOOKS_DECLS, \
 280   LANG_HOOKS_FOR_TYPES_INITIALIZER \
 281 }
 282
 283 #endif /* GCC_LANG_HOOKS_DEF_H */