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32 results

gcc-common.h

Blame
    • Frédéric Pierret (fepitre)'s avatar
      c7527373
      gcc-common.h: Update for GCC 10 · c7527373
      Frédéric Pierret (fepitre) authored
      
      Remove "params.h" include, which has been dropped in GCC 10.
      
      Remove is_a_helper() macro, which is now defined in gimple.h, as seen
      when running './scripts/gcc-plugin.sh g++ g++ gcc':
      
      In file included from <stdin>:1:
      ./gcc-plugins/gcc-common.h:852:13: error: redefinition of ‘static bool is_a_helper<T>::test(U*) [with U = const gimple; T = const ggoto*]’
        852 | inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
            |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
      In file included from ./gcc-plugins/gcc-common.h:125,
                       from <stdin>:1:
      /usr/lib/gcc/x86_64-redhat-linux/10/plugin/include/gimple.h:1037:1: note: ‘static bool is_a_helper<T>::test(U*) [with U = const gimple; T = const ggoto*]’ previously declared here
       1037 | is_a_helper <const ggoto *>::test (const gimple *gs)
            | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
      
      Add -Wno-format-diag to scripts/gcc-plugins/Makefile to avoid
      meaningless warnings from error() formats used by plugins:
      
      scripts/gcc-plugins/structleak_plugin.c: In function ‘int plugin_init(plugin_name_args*, plugin_gcc_version*)’:
      scripts/gcc-plugins/structleak_plugin.c:253:12: warning: unquoted sequence of 2 consecutive punctuation characters ‘'-’ in format [-Wformat-diag]
        253 |   error(G_("unknown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
            |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      
      Signed-off-by: default avatarFrédéric Pierret (fepitre) <frederic.pierret@qubes-os.org>
      Link: https://lore.kernel.org/r/20200407113259.270172-1-frederic.pierret@qubes-os.org
      
      
      [kees: include -Wno-format-diag for plugin builds]
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      c7527373
      History
      gcc-common.h: Update for GCC 10
      Frédéric Pierret (fepitre) authored
      
      Remove "params.h" include, which has been dropped in GCC 10.
      
      Remove is_a_helper() macro, which is now defined in gimple.h, as seen
      when running './scripts/gcc-plugin.sh g++ g++ gcc':
      
      In file included from <stdin>:1:
      ./gcc-plugins/gcc-common.h:852:13: error: redefinition of ‘static bool is_a_helper<T>::test(U*) [with U = const gimple; T = const ggoto*]’
        852 | inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
            |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
      In file included from ./gcc-plugins/gcc-common.h:125,
                       from <stdin>:1:
      /usr/lib/gcc/x86_64-redhat-linux/10/plugin/include/gimple.h:1037:1: note: ‘static bool is_a_helper<T>::test(U*) [with U = const gimple; T = const ggoto*]’ previously declared here
       1037 | is_a_helper <const ggoto *>::test (const gimple *gs)
            | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
      
      Add -Wno-format-diag to scripts/gcc-plugins/Makefile to avoid
      meaningless warnings from error() formats used by plugins:
      
      scripts/gcc-plugins/structleak_plugin.c: In function ‘int plugin_init(plugin_name_args*, plugin_gcc_version*)’:
      scripts/gcc-plugins/structleak_plugin.c:253:12: warning: unquoted sequence of 2 consecutive punctuation characters ‘'-’ in format [-Wformat-diag]
        253 |   error(G_("unknown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
            |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      
      Signed-off-by: default avatarFrédéric Pierret (fepitre) <frederic.pierret@qubes-os.org>
      Link: https://lore.kernel.org/r/20200407113259.270172-1-frederic.pierret@qubes-os.org
      
      
      [kees: include -Wno-format-diag for plugin builds]
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
    gcc-common.h 23.67 KiB
    /* SPDX-License-Identifier: GPL-2.0 */
    #ifndef GCC_COMMON_H_INCLUDED
    #define GCC_COMMON_H_INCLUDED
    
    #include "bversion.h"
    #if BUILDING_GCC_VERSION >= 6000
    #include "gcc-plugin.h"
    #else
    #include "plugin.h"
    #endif
    #include "plugin-version.h"
    #include "config.h"
    #include "system.h"
    #include "coretypes.h"
    #include "tm.h"
    #include "line-map.h"
    #include "input.h"
    #include "tree.h"
    
    #include "tree-inline.h"
    #include "version.h"
    #include "rtl.h"
    #include "tm_p.h"
    #include "flags.h"
    #include "hard-reg-set.h"
    #include "output.h"
    #include "except.h"
    #include "function.h"
    #include "toplev.h"
    #if BUILDING_GCC_VERSION >= 5000
    #include "expr.h"
    #endif
    #include "basic-block.h"
    #include "intl.h"
    #include "ggc.h"
    #include "timevar.h"
    
    #if BUILDING_GCC_VERSION < 10000
    #include "params.h"
    #endif
    
    #if BUILDING_GCC_VERSION <= 4009
    #include "pointer-set.h"
    #else
    #include "hash-map.h"
    #endif
    
    #if BUILDING_GCC_VERSION >= 7000
    #include "memmodel.h"
    #endif
    #include "emit-rtl.h"
    #include "debug.h"
    #include "target.h"
    #include "langhooks.h"
    #include "cfgloop.h"
    #include "cgraph.h"
    #include "opts.h"
    
    #if BUILDING_GCC_VERSION == 4005
    #include <sys/mman.h>
    #endif
    
    #if BUILDING_GCC_VERSION >= 4007
    #include "tree-pretty-print.h"
    #include "gimple-pretty-print.h"
    #endif
    
    #if BUILDING_GCC_VERSION >= 4006
    /*
     * The c-family headers were moved into a subdirectory in GCC version
     * 4.7, but most plugin-building users of GCC 4.6 are using the Debian
     * or Ubuntu package, which has an out-of-tree patch to move this to the
     * same location as found in 4.7 and later:
     * https://sources.debian.net/src/gcc-4.6/4.6.3-14/debian/patches/pr45078.diff/
     */
    #include "c-family/c-common.h"
    #else
    #include "c-common.h"
    #endif
    
    #if BUILDING_GCC_VERSION <= 4008
    #include "tree-flow.h"
    #else
    #include "tree-cfgcleanup.h"
    #include "tree-ssa-operands.h"
    #include "tree-into-ssa.h"
    #endif
    
    #if BUILDING_GCC_VERSION >= 4008
    #include "is-a.h"
    #endif
    
    #include "diagnostic.h"
    #include "tree-dump.h"
    #include "tree-pass.h"
    #if BUILDING_GCC_VERSION >= 4009
    #include "pass_manager.h"
    #endif
    #include "predict.h"
    #include "ipa-utils.h"
    
    #if BUILDING_GCC_VERSION >= 8000
    #include "stringpool.h"
    #endif
    
    #if BUILDING_GCC_VERSION >= 4009
    #include "attribs.h"
    #include "varasm.h"
    #include "stor-layout.h"
    #include "internal-fn.h"
    #include "gimple-expr.h"
    #include "gimple-fold.h"
    #include "context.h"
    #include "tree-ssa-alias.h"
    #include "tree-ssa.h"
    #include "stringpool.h"
    #if BUILDING_GCC_VERSION >= 7000
    #include "tree-vrp.h"
    #endif
    #include "tree-ssanames.h"
    #include "print-tree.h"
    #include "tree-eh.h"
    #include "stmt.h"
    #include "gimplify.h"
    #endif
    
    #include "gimple.h"
    
    #if BUILDING_GCC_VERSION >= 4009
    #include "tree-ssa-operands.h"
    #include "tree-phinodes.h"
    #include "tree-cfg.h"
    #include "gimple-iterator.h"
    #include "gimple-ssa.h"
    #include "ssa-iterators.h"
    #endif
    
    #if BUILDING_GCC_VERSION >= 5000
    #include "builtins.h"
    #endif
    
    /* missing from basic_block.h... */
    void debug_dominance_info(enum cdi_direction dir);
    void debug_dominance_tree(enum cdi_direction dir, basic_block root);
    
    #if BUILDING_GCC_VERSION == 4006
    void debug_gimple_stmt(gimple);
    void debug_gimple_seq(gimple_seq);
    void print_gimple_seq(FILE *, gimple_seq, int, int);
    void print_gimple_stmt(FILE *, gimple, int, int);
    void print_gimple_expr(FILE *, gimple, int, int);
    void dump_gimple_stmt(pretty_printer *, gimple, int, int);
    #endif
    
    #ifndef __unused
    #define __unused __attribute__((__unused__))
    #endif
    #ifndef __visible
    #define __visible __attribute__((visibility("default")))
    #endif
    
    #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
    #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
    #define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
    #define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
    
    /* should come from c-tree.h if only it were installed for gcc 4.5... */
    #define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
    
    static inline tree build_const_char_string(int len, const char *str)
    {
    	tree cstr, elem, index, type;
    
    	cstr = build_string(len, str);
    	elem = build_type_variant(char_type_node, 1, 0);
    	index = build_index_type(size_int(len - 1));
    	type = build_array_type(elem, index);
    	TREE_TYPE(cstr) = type;
    	TREE_CONSTANT(cstr) = 1;
    	TREE_READONLY(cstr) = 1;
    	TREE_STATIC(cstr) = 1;
    	return cstr;
    }
    
    #define PASS_INFO(NAME, REF, ID, POS)		\
    struct register_pass_info NAME##_pass_info = {	\
    	.pass = make_##NAME##_pass(),		\
    	.reference_pass_name = REF,		\
    	.ref_pass_instance_number = ID,		\
    	.pos_op = POS,				\
    }
    
    #if BUILDING_GCC_VERSION == 4005
    #define FOR_EACH_LOCAL_DECL(FUN, I, D)			\
    	for (tree vars = (FUN)->local_decls, (I) = 0;	\
    		vars && ((D) = TREE_VALUE(vars));	\
    		vars = TREE_CHAIN(vars), (I)++)
    #define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
    #define FOR_EACH_VEC_ELT(T, V, I, P) \
    	for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
    #define TODO_rebuild_cgraph_edges 0
    #define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))
    
    #ifndef O_BINARY
    #define O_BINARY 0
    #endif
    
    typedef struct varpool_node *varpool_node_ptr;
    
    static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
    {
    	tree fndecl;
    
    	if (!is_gimple_call(stmt))
    		return false;
    	fndecl = gimple_call_fndecl(stmt);
    	if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
    		return false;
    	return DECL_FUNCTION_CODE(fndecl) == code;
    }
    
    static inline bool is_simple_builtin(tree decl)
    {
    	if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
    		return false;
    
    	switch (DECL_FUNCTION_CODE(decl)) {
    	/* Builtins that expand to constants. */
    	case BUILT_IN_CONSTANT_P:
    	case BUILT_IN_EXPECT:
    	case BUILT_IN_OBJECT_SIZE:
    	case BUILT_IN_UNREACHABLE:
    	/* Simple register moves or loads from stack. */
    	case BUILT_IN_RETURN_ADDRESS:
    	case BUILT_IN_EXTRACT_RETURN_ADDR:
    	case BUILT_IN_FROB_RETURN_ADDR:
    	case BUILT_IN_RETURN:
    	case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
    	case BUILT_IN_FRAME_ADDRESS:
    	case BUILT_IN_VA_END:
    	case BUILT_IN_STACK_SAVE:
    	case BUILT_IN_STACK_RESTORE:
    	/* Exception state returns or moves registers around. */
    	case BUILT_IN_EH_FILTER:
    	case BUILT_IN_EH_POINTER:
    	case BUILT_IN_EH_COPY_VALUES:
    	return true;
    
    	default:
    	return false;
    	}
    }
    
    static inline void add_local_decl(struct function *fun, tree d)
    {
    	gcc_assert(TREE_CODE(d) == VAR_DECL);
    	fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
    }
    #endif
    
    #if BUILDING_GCC_VERSION <= 4006
    #define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
    #define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
    #define EDGE_PRESERVE 0ULL
    #define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
    #define flag_fat_lto_objects true
    
    #define get_random_seed(noinit) ({						\
    	unsigned HOST_WIDE_INT seed;						\
    	sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);	\
    	seed * seed; })
    
    #define int_const_binop(code, arg1, arg2)	\
    	int_const_binop((code), (arg1), (arg2), 0)
    
    static inline bool gimple_clobber_p(gimple s __unused)
    {
    	return false;
    }
    
    static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
    {
    	unsigned i;
    
    	for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
    		tree op = gimple_asm_clobber_op(stmt, i);
    
    		if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
    			return true;
    	}
    
    	return false;
    }
    
    static inline tree builtin_decl_implicit(enum built_in_function fncode)
    {
    	return implicit_built_in_decls[fncode];
    }
    
    static inline int ipa_reverse_postorder(struct cgraph_node **order)
    {
    	return cgraph_postorder(order);
    }
    
    static inline struct cgraph_node *cgraph_create_node(tree decl)
    {
    	return cgraph_node(decl);
    }
    
    static inline struct cgraph_node *cgraph_get_create_node(tree decl)
    {
    	struct cgraph_node *node = cgraph_get_node(decl);
    
    	return node ? node : cgraph_node(decl);
    }
    
    static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
    {
    	return node->analyzed && !node->thunk.thunk_p && !node->alias;
    }
    
    static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
    {
    	struct cgraph_node *node;
    
    	for (node = cgraph_nodes; node; node = node->next)
    		if (cgraph_function_with_gimple_body_p(node))
    			return node;
    	return NULL;
    }
    
    static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
    {
    	for (node = node->next; node; node = node->next)
    		if (cgraph_function_with_gimple_body_p(node))
    			return node;
    	return NULL;
    }
    
    static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
    {
    	cgraph_node_ptr alias;
    
    	if (callback(node, data))
    		return true;
    
    	for (alias = node->same_body; alias; alias = alias->next) {
    		if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
    			if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
    				return true;
    	}
    
    	return false;
    }
    
    #define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
    	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
    		(node) = cgraph_next_function_with_gimple_body(node))
    
    static inline void varpool_add_new_variable(tree decl)
    {
    	varpool_finalize_decl(decl);
    }
    #endif
    
    #if BUILDING_GCC_VERSION <= 4007
    #define FOR_EACH_FUNCTION(node)	\
    	for (node = cgraph_nodes; node; node = node->next)
    #define FOR_EACH_VARIABLE(node)	\
    	for (node = varpool_nodes; node; node = node->next)
    #define PROP_loops 0
    #define NODE_SYMBOL(node) (node)
    #define NODE_DECL(node) (node)->decl
    #define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
    #define vNULL NULL
    
    static inline int bb_loop_depth(const_basic_block bb)
    {
    	return bb->loop_father ? loop_depth(bb->loop_father) : 0;
    }
    
    static inline bool gimple_store_p(gimple gs)
    {
    	tree lhs = gimple_get_lhs(gs);
    
    	return lhs && !is_gimple_reg(lhs);
    }
    
    static inline void gimple_init_singleton(gimple g __unused)
    {
    }
    #endif
    
    #if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
    static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
    {
    	return cgraph_alias_aliased_node(n);
    }
    #endif
    
    #if BUILDING_GCC_VERSION <= 4008
    #define ENTRY_BLOCK_PTR_FOR_FN(FN)	ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
    #define EXIT_BLOCK_PTR_FOR_FN(FN)	EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
    #define basic_block_info_for_fn(FN)	((FN)->cfg->x_basic_block_info)
    #define n_basic_blocks_for_fn(FN)	((FN)->cfg->x_n_basic_blocks)
    #define n_edges_for_fn(FN)		((FN)->cfg->x_n_edges)
    #define last_basic_block_for_fn(FN)	((FN)->cfg->x_last_basic_block)
    #define label_to_block_map_for_fn(FN)	((FN)->cfg->x_label_to_block_map)
    #define profile_status_for_fn(FN)	((FN)->cfg->x_profile_status)
    #define BASIC_BLOCK_FOR_FN(FN, N)	BASIC_BLOCK_FOR_FUNCTION((FN), (N))
    #define NODE_IMPLICIT_ALIAS(node)	(node)->same_body_alias
    #define VAR_P(NODE)			(TREE_CODE(NODE) == VAR_DECL)
    
    static inline bool tree_fits_shwi_p(const_tree t)
    {
    	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
    		return false;
    
    	if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
    		return true;
    
    	if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
    		return true;
    
    	return false;
    }
    
    static inline bool tree_fits_uhwi_p(const_tree t)
    {
    	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
    		return false;
    
    	return TREE_INT_CST_HIGH(t) == 0;
    }
    
    static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
    {
    	gcc_assert(tree_fits_shwi_p(t));
    	return TREE_INT_CST_LOW(t);
    }
    
    static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
    {
    	gcc_assert(tree_fits_uhwi_p(t));
    	return TREE_INT_CST_LOW(t);
    }
    
    static inline const char *get_tree_code_name(enum tree_code code)
    {
    	gcc_assert(code < MAX_TREE_CODES);
    	return tree_code_name[code];
    }
    
    #define ipa_remove_stmt_references(cnode, stmt)
    
    typedef union gimple_statement_d gasm;
    typedef union gimple_statement_d gassign;
    typedef union gimple_statement_d gcall;
    typedef union gimple_statement_d gcond;
    typedef union gimple_statement_d gdebug;
    typedef union gimple_statement_d ggoto;
    typedef union gimple_statement_d gphi;
    typedef union gimple_statement_d greturn;
    
    static inline gasm *as_a_gasm(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gasm *as_a_const_gasm(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gassign *as_a_gassign(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gassign *as_a_const_gassign(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gcall *as_a_gcall(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gcall *as_a_const_gcall(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gcond *as_a_gcond(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gcond *as_a_const_gcond(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gdebug *as_a_gdebug(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline ggoto *as_a_ggoto(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gphi *as_a_gphi(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gphi *as_a_const_gphi(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline greturn *as_a_greturn(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const greturn *as_a_const_greturn(const_gimple stmt)
    {
    	return stmt;
    }
    #endif
    
    #if BUILDING_GCC_VERSION == 4008
    #define NODE_SYMBOL(node) (&(node)->symbol)
    #define NODE_DECL(node) (node)->symbol.decl
    #endif
    
    #if BUILDING_GCC_VERSION >= 4008
    #define add_referenced_var(var)
    #define mark_sym_for_renaming(var)
    #define varpool_mark_needed_node(node)
    #define create_var_ann(var)
    #define TODO_dump_func 0
    #define TODO_dump_cgraph 0
    #endif
    
    #if BUILDING_GCC_VERSION <= 4009
    #define TODO_verify_il 0
    #define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE
    
    #define section_name_prefix LTO_SECTION_NAME_PREFIX
    #define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)
    
    rtx emit_move_insn(rtx x, rtx y);
    
    typedef struct rtx_def rtx_insn;
    
    static inline const char *get_decl_section_name(const_tree decl)
    {
    	if (DECL_SECTION_NAME(decl) == NULL_TREE)
    		return NULL;
    
    	return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
    }
    
    static inline void set_decl_section_name(tree node, const char *value)
    {
    	if (value)
    		DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
    	else
    		DECL_SECTION_NAME(node) = NULL;
    }
    #endif
    
    #if BUILDING_GCC_VERSION == 4009
    typedef struct gimple_statement_asm gasm;
    typedef struct gimple_statement_base gassign;
    typedef struct gimple_statement_call gcall;
    typedef struct gimple_statement_base gcond;
    typedef struct gimple_statement_base gdebug;
    typedef struct gimple_statement_base ggoto;
    typedef struct gimple_statement_phi gphi;
    typedef struct gimple_statement_base greturn;
    
    static inline gasm *as_a_gasm(gimple stmt)
    {
    	return as_a<gasm>(stmt);
    }
    
    static inline const gasm *as_a_const_gasm(const_gimple stmt)
    {
    	return as_a<const gasm>(stmt);
    }
    
    static inline gassign *as_a_gassign(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gassign *as_a_const_gassign(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gcall *as_a_gcall(gimple stmt)
    {
    	return as_a<gcall>(stmt);
    }
    
    static inline const gcall *as_a_const_gcall(const_gimple stmt)
    {
    	return as_a<const gcall>(stmt);
    }
    
    static inline gcond *as_a_gcond(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gcond *as_a_const_gcond(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gdebug *as_a_gdebug(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline ggoto *as_a_ggoto(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
    {
    	return stmt;
    }
    
    static inline gphi *as_a_gphi(gimple stmt)
    {
    	return as_a<gphi>(stmt);
    }
    
    static inline const gphi *as_a_const_gphi(const_gimple stmt)
    {
    	return as_a<const gphi>(stmt);
    }
    
    static inline greturn *as_a_greturn(gimple stmt)
    {
    	return stmt;
    }
    
    static inline const greturn *as_a_const_greturn(const_gimple stmt)
    {
    	return stmt;
    }
    #endif
    
    #if BUILDING_GCC_VERSION >= 4009
    #define TODO_ggc_collect 0
    #define NODE_SYMBOL(node) (node)
    #define NODE_DECL(node) (node)->decl
    #define cgraph_node_name(node) (node)->name()
    #define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
    
    static inline opt_pass *get_pass_for_id(int id)
    {
    	return g->get_passes()->get_pass_for_id(id);
    }
    #endif
    
    #if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000
    /* gimple related */
    template <>
    template <>
    inline bool is_a_helper<const gassign *>::test(const_gimple gs)
    {
    	return gs->code == GIMPLE_ASSIGN;
    }
    #endif
    
    #if BUILDING_GCC_VERSION >= 5000
    #define TODO_verify_ssa TODO_verify_il
    #define TODO_verify_flow TODO_verify_il
    #define TODO_verify_stmts TODO_verify_il
    #define TODO_verify_rtl_sharing TODO_verify_il
    
    #define INSN_DELETED_P(insn) (insn)->deleted()
    
    static inline const char *get_decl_section_name(const_tree decl)
    {
    	return DECL_SECTION_NAME(decl);
    }
    
    /* symtab/cgraph related */
    #define debug_cgraph_node(node) (node)->debug()
    #define cgraph_get_node(decl) cgraph_node::get(decl)
    #define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
    #define cgraph_create_node(decl) cgraph_node::create(decl)
    #define cgraph_n_nodes symtab->cgraph_count
    #define cgraph_max_uid symtab->cgraph_max_uid
    #define varpool_get_node(decl) varpool_node::get(decl)
    #define dump_varpool_node(file, node) (node)->dump(file)
    
    #if BUILDING_GCC_VERSION >= 8000
    #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
    	(caller)->create_edge((callee), (call_stmt), (count))
    
    #define cgraph_create_edge_including_clones(caller, callee,	\
    		old_call_stmt, call_stmt, count, freq, reason)	\
    	(caller)->create_edge_including_clones((callee),	\
    		(old_call_stmt), (call_stmt), (count), (reason))
    #else
    #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
    	(caller)->create_edge((callee), (call_stmt), (count), (freq))
    
    #define cgraph_create_edge_including_clones(caller, callee,	\
    		old_call_stmt, call_stmt, count, freq, reason)	\
    	(caller)->create_edge_including_clones((callee),	\
    		(old_call_stmt), (call_stmt), (count), (freq), (reason))
    #endif
    
    typedef struct cgraph_node *cgraph_node_ptr;
    typedef struct cgraph_edge *cgraph_edge_p;
    typedef struct varpool_node *varpool_node_ptr;
    
    static inline void change_decl_assembler_name(tree decl, tree name)
    {
    	symtab->change_decl_assembler_name(decl, name);
    }
    
    static inline void varpool_finalize_decl(tree decl)
    {
    	varpool_node::finalize_decl(decl);
    }
    
    static inline void varpool_add_new_variable(tree decl)
    {
    	varpool_node::add(decl);
    }
    
    static inline unsigned int rebuild_cgraph_edges(void)
    {
    	return cgraph_edge::rebuild_edges();
    }
    
    static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
    {
    	return node->function_symbol(availability);
    }
    
    static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
    {
    	return node->ultimate_alias_target(availability);
    }
    
    static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
    {
    	return node->only_called_directly_p();
    }
    
    static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
    {
    	return node->get_availability();
    }
    
    static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
    {
    	return node->get_alias_target();
    }
    
    static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
    {
    	return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
    }
    
    static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
    {
    	return symtab->add_cgraph_insertion_hook(hook, data);
    }
    
    static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
    {
    	symtab->remove_cgraph_insertion_hook(entry);
    }
    
    static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
    {
    	return symtab->add_cgraph_removal_hook(hook, data);
    }
    
    static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
    {
    	symtab->remove_cgraph_removal_hook(entry);
    }
    
    static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
    {
    	return symtab->add_cgraph_duplication_hook(hook, data);
    }
    
    static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
    {
    	symtab->remove_cgraph_duplication_hook(entry);
    }
    
    static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
    {
    	symtab->call_cgraph_duplication_hooks(node, node2);
    }
    
    static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
    {
    	symtab->call_edge_duplication_hooks(cs1, cs2);
    }
    
    #if BUILDING_GCC_VERSION >= 6000
    typedef gimple *gimple_ptr;
    typedef const gimple *const_gimple_ptr;
    #define gimple gimple_ptr
    #define const_gimple const_gimple_ptr
    #undef CONST_CAST_GIMPLE
    #define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
    #endif
    
    /* gimple related */
    static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
    {
    	return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
    }
    
    #if BUILDING_GCC_VERSION < 10000
    template <>
    template <>
    inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
    {
    	return gs->code == GIMPLE_GOTO;
    }
    
    template <>
    template <>
    inline bool is_a_helper<const greturn *>::test(const_gimple gs)
    {
    	return gs->code == GIMPLE_RETURN;
    }
    #endif
    
    static inline gasm *as_a_gasm(gimple stmt)
    {
    	return as_a<gasm *>(stmt);
    }
    
    static inline const gasm *as_a_const_gasm(const_gimple stmt)
    {
    	return as_a<const gasm *>(stmt);
    }
    
    static inline gassign *as_a_gassign(gimple stmt)
    {
    	return as_a<gassign *>(stmt);
    }
    
    static inline const gassign *as_a_const_gassign(const_gimple stmt)
    {
    	return as_a<const gassign *>(stmt);
    }
    
    static inline gcall *as_a_gcall(gimple stmt)
    {
    	return as_a<gcall *>(stmt);
    }
    
    static inline const gcall *as_a_const_gcall(const_gimple stmt)
    {
    	return as_a<const gcall *>(stmt);
    }
    
    static inline ggoto *as_a_ggoto(gimple stmt)
    {
    	return as_a<ggoto *>(stmt);
    }
    
    static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
    {
    	return as_a<const ggoto *>(stmt);
    }
    
    static inline gphi *as_a_gphi(gimple stmt)
    {
    	return as_a<gphi *>(stmt);
    }
    
    static inline const gphi *as_a_const_gphi(const_gimple stmt)
    {
    	return as_a<const gphi *>(stmt);
    }
    
    static inline greturn *as_a_greturn(gimple stmt)
    {
    	return as_a<greturn *>(stmt);
    }
    
    static inline const greturn *as_a_const_greturn(const_gimple stmt)
    {
    	return as_a<const greturn *>(stmt);
    }
    
    /* IPA/LTO related */
    #define ipa_ref_list_referring_iterate(L, I, P)	\
    	(L)->referring.iterate((I), &(P))
    #define ipa_ref_list_reference_iterate(L, I, P)	\
    	(L)->reference.iterate((I), &(P))
    
    static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
    {
    	return dyn_cast<cgraph_node_ptr>(ref->referring);
    }
    
    static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
    {
    	referring_node->remove_stmt_references(stmt);
    }
    #endif
    
    #if BUILDING_GCC_VERSION < 6000
    #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
    	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
    #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
    #endif
    
    #if BUILDING_GCC_VERSION >= 6000
    #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
    #endif
    
    #ifdef __cplusplus
    static inline void debug_tree(const_tree t)
    {
    	debug_tree(CONST_CAST_TREE(t));
    }
    
    static inline void debug_gimple_stmt(const_gimple s)
    {
    	debug_gimple_stmt(CONST_CAST_GIMPLE(s));
    }
    #else
    #define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
    #define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
    #endif
    
    #if BUILDING_GCC_VERSION >= 7000
    #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
    	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
    #endif
    
    #if BUILDING_GCC_VERSION < 7000
    #define SET_DECL_ALIGN(decl, align)	DECL_ALIGN(decl) = (align)
    #define SET_DECL_MODE(decl, mode)	DECL_MODE(decl) = (mode)
    #endif
    
    #endif