scripts/gcc-plugins/gcc-common.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef GCC_COMMON_H_INCLUDED
   3 #define GCC_COMMON_H_INCLUDED
   4
   5 #include "bversion.h"
   6 #if BUILDING_GCC_VERSION >= 6000
   7 #include "gcc-plugin.h"
   8 #else
   9 #include "plugin.h"
  10 #endif
  11 #include "plugin-version.h"
  12 #include "config.h"
  13 #include "system.h"
  14 #include "coretypes.h"
  15 #include "tm.h"
  16 #include "line-map.h"
  17 #include "input.h"
  18 #include "tree.h"
  19
  20 #include "tree-inline.h"
  21 #include "version.h"
  22 #include "rtl.h"
  23 #include "tm_p.h"
  24 #include "flags.h"
  25 #include "hard-reg-set.h"
  26 #include "output.h"
  27 #include "except.h"
  28 #include "function.h"
  29 #include "toplev.h"
  30 #if BUILDING_GCC_VERSION >= 5000
  31 #include "expr.h"
  32 #endif
  33 #include "basic-block.h"
  34 #include "intl.h"
  35 #include "ggc.h"
  36 #include "timevar.h"
  37
  38 #include "params.h"
  39
  40 #if BUILDING_GCC_VERSION <= 4009
  41 #include "pointer-set.h"
  42 #else
  43 #include "hash-map.h"
  44 #endif
  45
  46 #if BUILDING_GCC_VERSION >= 7000
  47 #include "memmodel.h"
  48 #endif
  49 #include "emit-rtl.h"
  50 #include "debug.h"
  51 #include "target.h"
  52 #include "langhooks.h"
  53 #include "cfgloop.h"
  54 #include "cgraph.h"
  55 #include "opts.h"
  56
  57 #if BUILDING_GCC_VERSION == 4005
  58 #include <sys/mman.h>
  59 #endif
  60
  61 #if BUILDING_GCC_VERSION >= 4007
  62 #include "tree-pretty-print.h"
  63 #include "gimple-pretty-print.h"
  64 #endif
  65
  66 #if BUILDING_GCC_VERSION >= 4006
  67 /*
  68  * The c-family headers were moved into a subdirectory in GCC version
  69  * 4.7, but most plugin-building users of GCC 4.6 are using the Debian
  70  * or Ubuntu package, which has an out-of-tree patch to move this to the
  71  * same location as found in 4.7 and later:
  72  * https://sources.debian.net/src/gcc-4.6/4.6.3-14/debian/patches/pr45078.diff/
  73  */
  74 #include "c-family/c-common.h"
  75 #else
  76 #include "c-common.h"
  77 #endif
  78
  79 #if BUILDING_GCC_VERSION <= 4008
  80 #include "tree-flow.h"
  81 #else
  82 #include "tree-cfgcleanup.h"
  83 #include "tree-ssa-operands.h"
  84 #include "tree-into-ssa.h"
  85 #endif
  86
  87 #if BUILDING_GCC_VERSION >= 4008
  88 #include "is-a.h"
  89 #endif
  90
  91 #include "diagnostic.h"
  92 #include "tree-dump.h"
  93 #include "tree-pass.h"
  94 #if BUILDING_GCC_VERSION >= 4009
  95 #include "pass_manager.h"
  96 #endif
  97 #include "predict.h"
  98 #include "ipa-utils.h"
  99
 100 #if BUILDING_GCC_VERSION >= 8000
 101 #include "stringpool.h"
 102 #endif
 103
 104 #if BUILDING_GCC_VERSION >= 4009
 105 #include "attribs.h"
 106 #include "varasm.h"
 107 #include "stor-layout.h"
 108 #include "internal-fn.h"
 109 #include "gimple-expr.h"
 110 #include "gimple-fold.h"
 111 #include "context.h"
 112 #include "tree-ssa-alias.h"
 113 #include "tree-ssa.h"
 114 #include "stringpool.h"
 115 #if BUILDING_GCC_VERSION >= 7000
 116 #include "tree-vrp.h"
 117 #endif
 118 #include "tree-ssanames.h"
 119 #include "print-tree.h"
 120 #include "tree-eh.h"
 121 #include "stmt.h"
 122 #include "gimplify.h"
 123 #endif
 124
 125 #include "gimple.h"
 126
 127 #if BUILDING_GCC_VERSION >= 4009
 128 #include "tree-ssa-operands.h"
 129 #include "tree-phinodes.h"
 130 #include "tree-cfg.h"
 131 #include "gimple-iterator.h"
 132 #include "gimple-ssa.h"
 133 #include "ssa-iterators.h"
 134 #endif
 135
 136 #if BUILDING_GCC_VERSION >= 5000
 137 #include "builtins.h"
 138 #endif
 139
 140 /* missing from basic_block.h... */
 141 void debug_dominance_info(enum cdi_direction dir);
 142 void debug_dominance_tree(enum cdi_direction dir, basic_block root);
 143
 144 #if BUILDING_GCC_VERSION == 4006
 145 void debug_gimple_stmt(gimple);
 146 void debug_gimple_seq(gimple_seq);
 147 void print_gimple_seq(FILE *, gimple_seq, int, int);
 148 void print_gimple_stmt(FILE *, gimple, int, int);
 149 void print_gimple_expr(FILE *, gimple, int, int);
 150 void dump_gimple_stmt(pretty_printer *, gimple, int, int);
 151 #endif
 152
 153 #ifndef __unused
 154 #define __unused __attribute__((__unused__))
 155 #endif
 156 #ifndef __visible
 157 #define __visible __attribute__((visibility("default")))
 158 #endif
 159
 160 #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
 161 #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
 162 #define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
 163 #define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
 164
 165 /* should come from c-tree.h if only it were installed for gcc 4.5... */
 166 #define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
 167
 168 static inline tree build_const_char_string(int len, const char *str)
 169 {
 170         tree cstr, elem, index, type;
 171
 172         cstr = build_string(len, str);
 173         elem = build_type_variant(char_type_node, 1, 0);
 174         index = build_index_type(size_int(len - 1));
 175         type = build_array_type(elem, index);
 176         TREE_TYPE(cstr) = type;
 177         TREE_CONSTANT(cstr) = 1;
 178         TREE_READONLY(cstr) = 1;
 179         TREE_STATIC(cstr) = 1;
 180         return cstr;
 181 }
 182
 183 #define PASS_INFO(NAME, REF, ID, POS)           \
 184 struct register_pass_info NAME##_pass_info = {  \
 185         .pass = make_##NAME##_pass(),           \
 186         .reference_pass_name = REF,             \
 187         .ref_pass_instance_number = ID,         \
 188         .pos_op = POS,                          \
 189 }
 190
 191 #if BUILDING_GCC_VERSION == 4005
 192 #define FOR_EACH_LOCAL_DECL(FUN, I, D)                  \
 193         for (tree vars = (FUN)->local_decls, (I) = 0;   \
 194                 vars && ((D) = TREE_VALUE(vars));       \
 195                 vars = TREE_CHAIN(vars), (I)++)
 196 #define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
 197 #define FOR_EACH_VEC_ELT(T, V, I, P) \
 198         for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
 199 #define TODO_rebuild_cgraph_edges 0
 200 #define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))
 201
 202 #ifndef O_BINARY
 203 #define O_BINARY 0
 204 #endif
 205
 206 typedef struct varpool_node *varpool_node_ptr;
 207
 208 static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
 209 {
 210         tree fndecl;
 211
 212         if (!is_gimple_call(stmt))
 213                 return false;
 214         fndecl = gimple_call_fndecl(stmt);
 215         if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
 216                 return false;
 217         return DECL_FUNCTION_CODE(fndecl) == code;
 218 }
 219
 220 static inline bool is_simple_builtin(tree decl)
 221 {
 222         if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
 223                 return false;
 224
 225         switch (DECL_FUNCTION_CODE(decl)) {
 226         /* Builtins that expand to constants. */
 227         case BUILT_IN_CONSTANT_P:
 228         case BUILT_IN_EXPECT:
 229         case BUILT_IN_OBJECT_SIZE:
 230         case BUILT_IN_UNREACHABLE:
 231         /* Simple register moves or loads from stack. */
 232         case BUILT_IN_RETURN_ADDRESS:
 233         case BUILT_IN_EXTRACT_RETURN_ADDR:
 234         case BUILT_IN_FROB_RETURN_ADDR:
 235         case BUILT_IN_RETURN:
 236         case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
 237         case BUILT_IN_FRAME_ADDRESS:
 238         case BUILT_IN_VA_END:
 239         case BUILT_IN_STACK_SAVE:
 240         case BUILT_IN_STACK_RESTORE:
 241         /* Exception state returns or moves registers around. */
 242         case BUILT_IN_EH_FILTER:
 243         case BUILT_IN_EH_POINTER:
 244         case BUILT_IN_EH_COPY_VALUES:
 245         return true;
 246
 247         default:
 248         return false;
 249         }
 250 }
 251
 252 static inline void add_local_decl(struct function *fun, tree d)
 253 {
 254         gcc_assert(TREE_CODE(d) == VAR_DECL);
 255         fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
 256 }
 257 #endif
 258
 259 #if BUILDING_GCC_VERSION <= 4006
 260 #define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
 261 #define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
 262 #define EDGE_PRESERVE 0ULL
 263 #define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
 264 #define flag_fat_lto_objects true
 265
 266 #define get_random_seed(noinit) ({                                              \
 267         unsigned HOST_WIDE_INT seed;                                            \
 268         sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);    \
 269         seed * seed; })
 270
 271 #define int_const_binop(code, arg1, arg2)       \
 272         int_const_binop((code), (arg1), (arg2), 0)
 273
 274 static inline bool gimple_clobber_p(gimple s __unused)
 275 {
 276         return false;
 277 }
 278
 279 static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
 280 {
 281         unsigned i;
 282
 283         for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
 284                 tree op = gimple_asm_clobber_op(stmt, i);
 285
 286                 if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
 287                         return true;
 288         }
 289
 290         return false;
 291 }
 292
 293 static inline tree builtin_decl_implicit(enum built_in_function fncode)
 294 {
 295         return implicit_built_in_decls[fncode];
 296 }
 297
 298 static inline int ipa_reverse_postorder(struct cgraph_node **order)
 299 {
 300         return cgraph_postorder(order);
 301 }
 302
 303 static inline struct cgraph_node *cgraph_create_node(tree decl)
 304 {
 305         return cgraph_node(decl);
 306 }
 307
 308 static inline struct cgraph_node *cgraph_get_create_node(tree decl)
 309 {
 310         struct cgraph_node *node = cgraph_get_node(decl);
 311
 312         return node ? node : cgraph_node(decl);
 313 }
 314
 315 static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
 316 {
 317         return node->analyzed && !node->thunk.thunk_p && !node->alias;
 318 }
 319
 320 static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
 321 {
 322         struct cgraph_node *node;
 323
 324         for (node = cgraph_nodes; node; node = node->next)
 325                 if (cgraph_function_with_gimple_body_p(node))
 326                         return node;
 327         return NULL;
 328 }
 329
 330 static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
 331 {
 332         for (node = node->next; node; node = node->next)
 333                 if (cgraph_function_with_gimple_body_p(node))
 334                         return node;
 335         return NULL;
 336 }
 337
 338 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
 339 {
 340         cgraph_node_ptr alias;
 341
 342         if (callback(node, data))
 343                 return true;
 344
 345         for (alias = node->same_body; alias; alias = alias->next) {
 346                 if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
 347                         if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
 348                                 return true;
 349         }
 350
 351         return false;
 352 }
 353
 354 #define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
 355         for ((node) = cgraph_first_function_with_gimple_body(); (node); \
 356                 (node) = cgraph_next_function_with_gimple_body(node))
 357
 358 static inline void varpool_add_new_variable(tree decl)
 359 {
 360         varpool_finalize_decl(decl);
 361 }
 362 #endif
 363
 364 #if BUILDING_GCC_VERSION <= 4007
 365 #define FOR_EACH_FUNCTION(node) \
 366         for (node = cgraph_nodes; node; node = node->next)
 367 #define FOR_EACH_VARIABLE(node) \
 368         for (node = varpool_nodes; node; node = node->next)
 369 #define PROP_loops 0
 370 #define NODE_SYMBOL(node) (node)
 371 #define NODE_DECL(node) (node)->decl
 372 #define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
 373 #define vNULL NULL
 374
 375 static inline int bb_loop_depth(const_basic_block bb)
 376 {
 377         return bb->loop_father ? loop_depth(bb->loop_father) : 0;
 378 }
 379
 380 static inline bool gimple_store_p(gimple gs)
 381 {
 382         tree lhs = gimple_get_lhs(gs);
 383
 384         return lhs && !is_gimple_reg(lhs);
 385 }
 386
 387 static inline void gimple_init_singleton(gimple g __unused)
 388 {
 389 }
 390 #endif
 391
 392 #if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
 393 static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
 394 {
 395         return cgraph_alias_aliased_node(n);
 396 }
 397 #endif
 398
 399 #if BUILDING_GCC_VERSION >= 4007 && BUILDING_GCC_VERSION <= 4009
 400 #define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
 401         cgraph_create_edge((caller), (callee), (call_stmt), (count), (freq))
 402 #define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
 403         cgraph_create_edge_including_clones((caller), (callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))
 404 #endif
 405
 406 #if BUILDING_GCC_VERSION <= 4008
 407 #define ENTRY_BLOCK_PTR_FOR_FN(FN)      ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
 408 #define EXIT_BLOCK_PTR_FOR_FN(FN)       EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
 409 #define basic_block_info_for_fn(FN)     ((FN)->cfg->x_basic_block_info)
 410 #define n_basic_blocks_for_fn(FN)       ((FN)->cfg->x_n_basic_blocks)
 411 #define n_edges_for_fn(FN)              ((FN)->cfg->x_n_edges)
 412 #define last_basic_block_for_fn(FN)     ((FN)->cfg->x_last_basic_block)
 413 #define label_to_block_map_for_fn(FN)   ((FN)->cfg->x_label_to_block_map)
 414 #define profile_status_for_fn(FN)       ((FN)->cfg->x_profile_status)
 415 #define BASIC_BLOCK_FOR_FN(FN, N)       BASIC_BLOCK_FOR_FUNCTION((FN), (N))
 416 #define NODE_IMPLICIT_ALIAS(node)       (node)->same_body_alias
 417 #define VAR_P(NODE)                     (TREE_CODE(NODE) == VAR_DECL)
 418
 419 static inline bool tree_fits_shwi_p(const_tree t)
 420 {
 421         if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
 422                 return false;
 423
 424         if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
 425                 return true;
 426
 427         if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
 428                 return true;
 429
 430         return false;
 431 }
 432
 433 static inline bool tree_fits_uhwi_p(const_tree t)
 434 {
 435         if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
 436                 return false;
 437
 438         return TREE_INT_CST_HIGH(t) == 0;
 439 }
 440
 441 static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
 442 {
 443         gcc_assert(tree_fits_shwi_p(t));
 444         return TREE_INT_CST_LOW(t);
 445 }
 446
 447 static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
 448 {
 449         gcc_assert(tree_fits_uhwi_p(t));
 450         return TREE_INT_CST_LOW(t);
 451 }
 452
 453 static inline const char *get_tree_code_name(enum tree_code code)
 454 {
 455         gcc_assert(code < MAX_TREE_CODES);
 456         return tree_code_name[code];
 457 }
 458
 459 #define ipa_remove_stmt_references(cnode, stmt)
 460
 461 typedef union gimple_statement_d gasm;
 462 typedef union gimple_statement_d gassign;
 463 typedef union gimple_statement_d gcall;
 464 typedef union gimple_statement_d gcond;
 465 typedef union gimple_statement_d gdebug;
 466 typedef union gimple_statement_d ggoto;
 467 typedef union gimple_statement_d gphi;
 468 typedef union gimple_statement_d greturn;
 469
 470 static inline gasm *as_a_gasm(gimple stmt)
 471 {
 472         return stmt;
 473 }
 474
 475 static inline const gasm *as_a_const_gasm(const_gimple stmt)
 476 {
 477         return stmt;
 478 }
 479
 480 static inline gassign *as_a_gassign(gimple stmt)
 481 {
 482         return stmt;
 483 }
 484
 485 static inline const gassign *as_a_const_gassign(const_gimple stmt)
 486 {
 487         return stmt;
 488 }
 489
 490 static inline gcall *as_a_gcall(gimple stmt)
 491 {
 492         return stmt;
 493 }
 494
 495 static inline const gcall *as_a_const_gcall(const_gimple stmt)
 496 {
 497         return stmt;
 498 }
 499
 500 static inline gcond *as_a_gcond(gimple stmt)
 501 {
 502         return stmt;
 503 }
 504
 505 static inline const gcond *as_a_const_gcond(const_gimple stmt)
 506 {
 507         return stmt;
 508 }
 509
 510 static inline gdebug *as_a_gdebug(gimple stmt)
 511 {
 512         return stmt;
 513 }
 514
 515 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
 516 {
 517         return stmt;
 518 }
 519
 520 static inline ggoto *as_a_ggoto(gimple stmt)
 521 {
 522         return stmt;
 523 }
 524
 525 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
 526 {
 527         return stmt;
 528 }
 529
 530 static inline gphi *as_a_gphi(gimple stmt)
 531 {
 532         return stmt;
 533 }
 534
 535 static inline const gphi *as_a_const_gphi(const_gimple stmt)
 536 {
 537         return stmt;
 538 }
 539
 540 static inline greturn *as_a_greturn(gimple stmt)
 541 {
 542         return stmt;
 543 }
 544
 545 static inline const greturn *as_a_const_greturn(const_gimple stmt)
 546 {
 547         return stmt;
 548 }
 549 #endif
 550
 551 #if BUILDING_GCC_VERSION == 4008
 552 #define NODE_SYMBOL(node) (&(node)->symbol)
 553 #define NODE_DECL(node) (node)->symbol.decl
 554 #endif
 555
 556 #if BUILDING_GCC_VERSION >= 4008
 557 #define add_referenced_var(var)
 558 #define mark_sym_for_renaming(var)
 559 #define varpool_mark_needed_node(node)
 560 #define create_var_ann(var)
 561 #define TODO_dump_func 0
 562 #define TODO_dump_cgraph 0
 563 #endif
 564
 565 #if BUILDING_GCC_VERSION <= 4009
 566 #define TODO_verify_il 0
 567 #define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE
 568
 569 #define section_name_prefix LTO_SECTION_NAME_PREFIX
 570 #define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)
 571
 572 rtx emit_move_insn(rtx x, rtx y);
 573
 574 typedef struct rtx_def rtx_insn;
 575
 576 static inline const char *get_decl_section_name(const_tree decl)
 577 {
 578         if (DECL_SECTION_NAME(decl) == NULL_TREE)
 579                 return NULL;
 580
 581         return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
 582 }
 583
 584 static inline void set_decl_section_name(tree node, const char *value)
 585 {
 586         if (value)
 587                 DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
 588         else
 589                 DECL_SECTION_NAME(node) = NULL;
 590 }
 591 #endif
 592
 593 #if BUILDING_GCC_VERSION == 4009
 594 typedef struct gimple_statement_asm gasm;
 595 typedef struct gimple_statement_base gassign;
 596 typedef struct gimple_statement_call gcall;
 597 typedef struct gimple_statement_base gcond;
 598 typedef struct gimple_statement_base gdebug;
 599 typedef struct gimple_statement_base ggoto;
 600 typedef struct gimple_statement_phi gphi;
 601 typedef struct gimple_statement_base greturn;
 602
 603 static inline gasm *as_a_gasm(gimple stmt)
 604 {
 605         return as_a<gasm>(stmt);
 606 }
 607
 608 static inline const gasm *as_a_const_gasm(const_gimple stmt)
 609 {
 610         return as_a<const gasm>(stmt);
 611 }
 612
 613 static inline gassign *as_a_gassign(gimple stmt)
 614 {
 615         return stmt;
 616 }
 617
 618 static inline const gassign *as_a_const_gassign(const_gimple stmt)
 619 {
 620         return stmt;
 621 }
 622
 623 static inline gcall *as_a_gcall(gimple stmt)
 624 {
 625         return as_a<gcall>(stmt);
 626 }
 627
 628 static inline const gcall *as_a_const_gcall(const_gimple stmt)
 629 {
 630         return as_a<const gcall>(stmt);
 631 }
 632
 633 static inline gcond *as_a_gcond(gimple stmt)
 634 {
 635         return stmt;
 636 }
 637
 638 static inline const gcond *as_a_const_gcond(const_gimple stmt)
 639 {
 640         return stmt;
 641 }
 642
 643 static inline gdebug *as_a_gdebug(gimple stmt)
 644 {
 645         return stmt;
 646 }
 647
 648 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
 649 {
 650         return stmt;
 651 }
 652
 653 static inline ggoto *as_a_ggoto(gimple stmt)
 654 {
 655         return stmt;
 656 }
 657
 658 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
 659 {
 660         return stmt;
 661 }
 662
 663 static inline gphi *as_a_gphi(gimple stmt)
 664 {
 665         return as_a<gphi>(stmt);
 666 }
 667
 668 static inline const gphi *as_a_const_gphi(const_gimple stmt)
 669 {
 670         return as_a<const gphi>(stmt);
 671 }
 672
 673 static inline greturn *as_a_greturn(gimple stmt)
 674 {
 675         return stmt;
 676 }
 677
 678 static inline const greturn *as_a_const_greturn(const_gimple stmt)
 679 {
 680         return stmt;
 681 }
 682 #endif
 683
 684 #if BUILDING_GCC_VERSION >= 4009
 685 #define TODO_ggc_collect 0
 686 #define NODE_SYMBOL(node) (node)
 687 #define NODE_DECL(node) (node)->decl
 688 #define cgraph_node_name(node) (node)->name()
 689 #define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
 690
 691 static inline opt_pass *get_pass_for_id(int id)
 692 {
 693         return g->get_passes()->get_pass_for_id(id);
 694 }
 695 #endif
 696
 697 #if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000
 698 /* gimple related */
 699 template <>
 700 template <>
 701 inline bool is_a_helper<const gassign *>::test(const_gimple gs)
 702 {
 703         return gs->code == GIMPLE_ASSIGN;
 704 }
 705 #endif
 706
 707 #if BUILDING_GCC_VERSION >= 5000
 708 #define TODO_verify_ssa TODO_verify_il
 709 #define TODO_verify_flow TODO_verify_il
 710 #define TODO_verify_stmts TODO_verify_il
 711 #define TODO_verify_rtl_sharing TODO_verify_il
 712
 713 #define INSN_DELETED_P(insn) (insn)->deleted()
 714
 715 static inline const char *get_decl_section_name(const_tree decl)
 716 {
 717         return DECL_SECTION_NAME(decl);
 718 }
 719
 720 /* symtab/cgraph related */
 721 #define debug_cgraph_node(node) (node)->debug()
 722 #define cgraph_get_node(decl) cgraph_node::get(decl)
 723 #define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
 724 #define cgraph_create_node(decl) cgraph_node::create(decl)
 725 #define cgraph_n_nodes symtab->cgraph_count
 726 #define cgraph_max_uid symtab->cgraph_max_uid
 727 #define varpool_get_node(decl) varpool_node::get(decl)
 728 #define dump_varpool_node(file, node) (node)->dump(file)
 729
 730 #define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
 731         (caller)->create_edge((callee), (call_stmt), (count), (freq))
 732 #define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
 733         (caller)->create_edge_including_clones((callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))
 734
 735 typedef struct cgraph_node *cgraph_node_ptr;
 736 typedef struct cgraph_edge *cgraph_edge_p;
 737 typedef struct varpool_node *varpool_node_ptr;
 738
 739 static inline void change_decl_assembler_name(tree decl, tree name)
 740 {
 741         symtab->change_decl_assembler_name(decl, name);
 742 }
 743
 744 static inline void varpool_finalize_decl(tree decl)
 745 {
 746         varpool_node::finalize_decl(decl);
 747 }
 748
 749 static inline void varpool_add_new_variable(tree decl)
 750 {
 751         varpool_node::add(decl);
 752 }
 753
 754 static inline unsigned int rebuild_cgraph_edges(void)
 755 {
 756         return cgraph_edge::rebuild_edges();
 757 }
 758
 759 static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
 760 {
 761         return node->function_symbol(availability);
 762 }
 763
 764 static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
 765 {
 766         return node->ultimate_alias_target(availability);
 767 }
 768
 769 static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
 770 {
 771         return node->only_called_directly_p();
 772 }
 773
 774 static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
 775 {
 776         return node->get_availability();
 777 }
 778
 779 static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
 780 {
 781         return node->get_alias_target();
 782 }
 783
 784 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
 785 {
 786         return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
 787 }
 788
 789 static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
 790 {
 791         return symtab->add_cgraph_insertion_hook(hook, data);
 792 }
 793
 794 static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
 795 {
 796         symtab->remove_cgraph_insertion_hook(entry);
 797 }
 798
 799 static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
 800 {
 801         return symtab->add_cgraph_removal_hook(hook, data);
 802 }
 803
 804 static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
 805 {
 806         symtab->remove_cgraph_removal_hook(entry);
 807 }
 808
 809 static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
 810 {
 811         return symtab->add_cgraph_duplication_hook(hook, data);
 812 }
 813
 814 static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
 815 {
 816         symtab->remove_cgraph_duplication_hook(entry);
 817 }
 818
 819 static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
 820 {
 821         symtab->call_cgraph_duplication_hooks(node, node2);
 822 }
 823
 824 static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
 825 {
 826         symtab->call_edge_duplication_hooks(cs1, cs2);
 827 }
 828
 829 #if BUILDING_GCC_VERSION >= 6000
 830 typedef gimple *gimple_ptr;
 831 typedef const gimple *const_gimple_ptr;
 832 #define gimple gimple_ptr
 833 #define const_gimple const_gimple_ptr
 834 #undef CONST_CAST_GIMPLE
 835 #define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
 836 #endif
 837
 838 /* gimple related */
 839 static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
 840 {
 841         return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
 842 }
 843
 844 template <>
 845 template <>
 846 inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
 847 {
 848         return gs->code == GIMPLE_GOTO;
 849 }
 850
 851 template <>
 852 template <>
 853 inline bool is_a_helper<const greturn *>::test(const_gimple gs)
 854 {
 855         return gs->code == GIMPLE_RETURN;
 856 }
 857
 858 static inline gasm *as_a_gasm(gimple stmt)
 859 {
 860         return as_a<gasm *>(stmt);
 861 }
 862
 863 static inline const gasm *as_a_const_gasm(const_gimple stmt)
 864 {
 865         return as_a<const gasm *>(stmt);
 866 }
 867
 868 static inline gassign *as_a_gassign(gimple stmt)
 869 {
 870         return as_a<gassign *>(stmt);
 871 }
 872
 873 static inline const gassign *as_a_const_gassign(const_gimple stmt)
 874 {
 875         return as_a<const gassign *>(stmt);
 876 }
 877
 878 static inline gcall *as_a_gcall(gimple stmt)
 879 {
 880         return as_a<gcall *>(stmt);
 881 }
 882
 883 static inline const gcall *as_a_const_gcall(const_gimple stmt)
 884 {
 885         return as_a<const gcall *>(stmt);
 886 }
 887
 888 static inline ggoto *as_a_ggoto(gimple stmt)
 889 {
 890         return as_a<ggoto *>(stmt);
 891 }
 892
 893 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
 894 {
 895         return as_a<const ggoto *>(stmt);
 896 }
 897
 898 static inline gphi *as_a_gphi(gimple stmt)
 899 {
 900         return as_a<gphi *>(stmt);
 901 }
 902
 903 static inline const gphi *as_a_const_gphi(const_gimple stmt)
 904 {
 905         return as_a<const gphi *>(stmt);
 906 }
 907
 908 static inline greturn *as_a_greturn(gimple stmt)
 909 {
 910         return as_a<greturn *>(stmt);
 911 }
 912
 913 static inline const greturn *as_a_const_greturn(const_gimple stmt)
 914 {
 915         return as_a<const greturn *>(stmt);
 916 }
 917
 918 /* IPA/LTO related */
 919 #define ipa_ref_list_referring_iterate(L, I, P) \
 920         (L)->referring.iterate((I), &(P))
 921 #define ipa_ref_list_reference_iterate(L, I, P) \
 922         (L)->reference.iterate((I), &(P))
 923
 924 static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
 925 {
 926         return dyn_cast<cgraph_node_ptr>(ref->referring);
 927 }
 928
 929 static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
 930 {
 931         referring_node->remove_stmt_references(stmt);
 932 }
 933 #endif
 934
 935 #if BUILDING_GCC_VERSION < 6000
 936 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)   \
 937         get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
 938 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
 939 #endif
 940
 941 #if BUILDING_GCC_VERSION >= 6000
 942 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
 943 #endif
 944
 945 #ifdef __cplusplus
 946 static inline void debug_tree(const_tree t)
 947 {
 948         debug_tree(CONST_CAST_TREE(t));
 949 }
 950
 951 static inline void debug_gimple_stmt(const_gimple s)
 952 {
 953         debug_gimple_stmt(CONST_CAST_GIMPLE(s));
 954 }
 955 #else
 956 #define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
 957 #define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
 958 #endif
 959
 960 #if BUILDING_GCC_VERSION >= 7000
 961 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)   \
 962         get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
 963 #endif
 964
 965 #if BUILDING_GCC_VERSION < 7000
 966 #define SET_DECL_ALIGN(decl, align)     DECL_ALIGN(decl) = (align)
 967 #define SET_DECL_MODE(decl, mode)       DECL_MODE(decl) = (mode)
 968 #endif
 969
 970 #endif