/* Front-end tree definitions for GNU compiler.
Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
This file is part of GCC.
#define CASE_FLT_FN(FN) case FN: case FN##F: case FN##L
#define CASE_FLT_FN_REENT(FN) case FN##_R: case FN##F_R: case FN##L_R
#define CASE_INT_FN(FN) case FN: case FN##L: case FN##LL
-
-/* An array of _DECL trees for the above. */
-extern GTY(()) tree built_in_decls[(int) END_BUILTINS];
-extern GTY(()) tree implicit_built_in_decls[(int) END_BUILTINS];
\f
/* In an OMP_CLAUSE node. */
OMP_CLAUSE_COLLAPSE,
/* OpenMP clause: untied. */
- OMP_CLAUSE_UNTIED
+ OMP_CLAUSE_UNTIED,
+
+ /* OpenMP clause: final (scalar-expression). */
+ OMP_CLAUSE_FINAL,
+
+ /* OpenMP clause: mergeable. */
+ OMP_CLAUSE_MERGEABLE
};
\f
/* The definition of tree nodes fills the next several pages. */
all expressions
all decls
+ TYPE_ARTIFICIAL in
+ all types
+
default_def_flag:
TYPE_VECTOR_OPAQUE in
(CODE1), (CODE2), (CODE3), (CODE4), 0); \
__t; })
-#define NON_TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \
+#define TREE_NOT_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \
({ __typeof (T) const __t = (T); \
if (TREE_CODE (__t) == (CODE1) \
|| TREE_CODE (__t) == (CODE2) \
(TREE_CODE (TYPE) == COMPLEX_TYPE \
&& TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)
+/* Nonzero if TYPE represents a vector integer type. */
+
+#define VECTOR_INTEGER_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == VECTOR_TYPE \
+ && TREE_CODE (TREE_TYPE (TYPE)) == INTEGER_TYPE)
+
+
/* Nonzero if TYPE represents a vector floating-point type. */
#define VECTOR_FLOAT_TYPE_P(TYPE) \
emitted. */
#define TREE_NO_WARNING(NODE) ((NODE)->base.nowarning_flag)
+/* Used to indicate that this TYPE represents a compiler-generated entity. */
+#define TYPE_ARTIFICIAL(NODE) (TYPE_CHECK (NODE)->base.nowarning_flag)
+
/* In an IDENTIFIER_NODE, this means that assemble_name was called with
this string as an argument. */
#define TREE_SYMBOL_REFERENCED(NODE) \
};
/* In a STRING_CST */
+/* In C terms, this is sizeof, not strlen. */
#define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length)
#define TREE_STRING_POINTER(NODE) \
((const char *)(STRING_CST_CHECK (NODE)->string.str))
#define OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ(NODE) \
(OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_init
+#define OMP_CLAUSE_FINAL_EXPR(NODE) \
+ OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_FINAL), 0)
#define OMP_CLAUSE_IF_EXPR(NODE) \
OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_IF), 0)
#define OMP_CLAUSE_NUM_THREADS_EXPR(NODE) \
nodes, this points to either the FUNCTION_DECL for the containing
function, the RECORD_TYPE or UNION_TYPE for the containing type, or
NULL_TREE or a TRANSLATION_UNIT_DECL if the given decl has "file
- scope". */
+ scope". In particular, for VAR_DECLs which are virtual table pointers
+ (they have DECL_VIRTUAL set), we use DECL_CONTEXT to determine the type
+ they belong to. */
#define DECL_CONTEXT(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.context)
#define DECL_FIELD_CONTEXT(NODE) \
(FIELD_DECL_CHECK (NODE)->decl_minimal.context)
/* The DECL_RTL for NODE, if it is set, or NULL, if it is not set. */
#define DECL_RTL_IF_SET(NODE) (DECL_RTL_SET_P (NODE) ? DECL_RTL (NODE) : NULL)
+#if (GCC_VERSION >= 2007)
+#define DECL_RTL_KNOWN_SET(decl) __extension__ \
+({ tree const __d = (decl); \
+ gcc_checking_assert (DECL_RTL_SET_P (__d)); \
+ /* Dereference it so the compiler knows it can't be NULL even \
+ without assertion checking. */ \
+ &*DECL_RTL_IF_SET (__d); })
+#else
+#define DECL_RTL_KNOWN_SET(decl) (&*DECL_RTL_IF_SET (decl))
+#endif
+
/* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */
#define DECL_REGISTER(NODE) (DECL_WRTL_CHECK (NODE)->decl_common.decl_flag_0)
#define DECL_DISREGARD_INLINE_LIMITS(NODE) \
(FUNCTION_DECL_CHECK (NODE)->function_decl.disregard_inline_limits)
+extern VEC(tree, gc) **decl_debug_args_lookup (tree);
+extern VEC(tree, gc) **decl_debug_args_insert (tree);
+
+/* Nonzero if a FUNCTION_DECL has DEBUG arguments attached to it. */
+#define DECL_HAS_DEBUG_ARGS_P(NODE) \
+ (FUNCTION_DECL_CHECK (NODE)->function_decl.has_debug_args_flag)
+
/* For FUNCTION_DECL, this holds a pointer to a structure ("struct function")
that describes the status of this function. */
#define DECL_STRUCT_FUNCTION(NODE) \
unsigned operator_new_flag : 1;
unsigned declared_inline_flag : 1;
unsigned regdecl_flag : 1;
-
unsigned no_inline_warning_flag : 1;
+
unsigned no_instrument_function_entry_exit : 1;
unsigned no_limit_stack : 1;
unsigned disregard_inline_limits : 1;
unsigned pure_flag : 1;
unsigned looping_const_or_pure_flag : 1;
+ unsigned has_debug_args_flag : 1;
-
- /* 3 bits left */
+ /* 2 bits left */
};
/* The source language of the translation-unit. */
return TREE_INT_CST_LOW (t);
}
#endif
-extern int tree_int_cst_msb (const_tree);
extern int tree_int_cst_sgn (const_tree);
extern int tree_int_cst_sign_bit (const_tree);
extern unsigned int tree_int_cst_min_precision (tree, bool);
extern tree merge_decl_attributes (tree, tree);
extern tree merge_type_attributes (tree, tree);
-/* Given a tree node and a string, return nonzero if the tree node is
- a valid attribute name for the string. */
+/* This function is a private implementation detail of lookup_attribute()
+ and you should never call it directly. */
+extern tree private_lookup_attribute (const char *, size_t, tree);
+
+/* Given an attribute name ATTR_NAME and a list of attributes LIST,
+ return a pointer to the attribute's list element if the attribute
+ is part of the list, or NULL_TREE if not found. If the attribute
+ appears more than once, this only returns the first occurrence; the
+ TREE_CHAIN of the return value should be passed back in if further
+ occurrences are wanted. ATTR_NAME must be in the form 'text' (not
+ '__text__'). */
-extern int is_attribute_p (const char *, const_tree);
+static inline tree
+lookup_attribute (const char *attr_name, tree list)
+{
+ gcc_checking_assert (attr_name[0] != '_');
+ /* In most cases, list is NULL_TREE. */
+ if (list == NULL_TREE)
+ return NULL_TREE;
+ else
+ /* Do the strlen() before calling the out-of-line implementation.
+ In most cases attr_name is a string constant, and the compiler
+ will optimize the strlen() away. */
+ return private_lookup_attribute (attr_name, strlen (attr_name), list);
+}
-/* Given an attribute name and a list of attributes, return the list element
- of the attribute or NULL_TREE if not found. */
+/* This function is a private implementation detail of
+ is_attribute_p() and you should never call it directly. */
+extern bool private_is_attribute_p (const char *, size_t, const_tree);
-extern tree lookup_attribute (const char *, tree);
+/* Given an identifier node IDENT and a string ATTR_NAME, return true
+ if the identifier node is a valid attribute name for the string.
+ ATTR_NAME must be in the form 'text' (not '__text__'). IDENT could
+ be the identifier for 'text' or for '__text__'. */
+
+static inline bool
+is_attribute_p (const char *attr_name, const_tree ident)
+{
+ gcc_checking_assert (attr_name[0] != '_');
+ /* Do the strlen() before calling the out-of-line implementation.
+ In most cases attr_name is a string constant, and the compiler
+ will optimize the strlen() away. */
+ return private_is_attribute_p (attr_name, strlen (attr_name), ident);
+}
/* Remove any instances of attribute ATTR_NAME in LIST and return the
- modified list. */
+ modified list. ATTR_NAME must be in the form 'text' (not
+ '__text__'). */
extern tree remove_attribute (const char *, tree);
extern VEC(tree,gc) *ctor_to_vec (tree);
-/* Examine CTOR to discover:
- * how many scalar fields are set to nonzero values,
- and place it in *P_NZ_ELTS;
- * how many scalar fields in total are in CTOR,
- and place it in *P_ELT_COUNT.
- * if a type is a union, and the initializer from the constructor
- is not the largest element in the union, then set *p_must_clear.
-
- Return whether or not CTOR is a valid static constant initializer, the same
- as "initializer_constant_valid_p (CTOR, TREE_TYPE (CTOR)) != 0". */
-
-extern bool categorize_ctor_elements (const_tree, HOST_WIDE_INT *, HOST_WIDE_INT *,
- bool *);
+extern bool categorize_ctor_elements (const_tree, HOST_WIDE_INT *,
+ HOST_WIDE_INT *, bool *);
-extern HOST_WIDE_INT count_type_elements (const_tree, bool);
+extern bool complete_ctor_at_level_p (const_tree, HOST_WIDE_INT, const_tree);
/* integer_zerop (tree x) is nonzero if X is an integer constant of value 0. */
extern tree upper_bound_in_type (tree, tree);
extern tree lower_bound_in_type (tree, tree);
extern int operand_equal_for_phi_arg_p (const_tree, const_tree);
-extern tree call_expr_arg (tree, int);
-extern tree *call_expr_argp (tree, int);
extern tree create_artificial_label (location_t);
extern const char *get_name (tree);
extern bool stdarg_p (const_tree);
extern double_int mem_ref_offset (const_tree);
extern tree reference_alias_ptr_type (const_tree);
extern tree build_invariant_address (tree, tree, HOST_WIDE_INT);
-extern tree constant_boolean_node (int, tree);
+extern tree constant_boolean_node (bool, tree);
extern tree div_if_zero_remainder (enum tree_code, const_tree, const_tree);
extern bool tree_swap_operands_p (const_tree, const_tree, bool);
|| code == TRUTH_XOR_EXPR || code == TRUTH_NOT_EXPR);
}
+/* Return whether TYPE is a type suitable for an offset for
+ a POINTER_PLUS_EXPR. */
+static inline bool
+ptrofftype_p (tree type)
+{
+ return (INTEGRAL_TYPE_P (type)
+ && TYPE_PRECISION (type) == TYPE_PRECISION (sizetype)
+ && TYPE_UNSIGNED (type) == TYPE_UNSIGNED (sizetype));
+}
+
+/* Return OFF converted to a pointer offset type suitable as offset for
+ POINTER_PLUS_EXPR. Use location LOC for this conversion. */
+static inline tree
+convert_to_ptrofftype_loc (location_t loc, tree off)
+{
+ return fold_convert_loc (loc, sizetype, off);
+}
+#define convert_to_ptrofftype(t) convert_to_ptrofftype_loc (UNKNOWN_LOCATION, t)
+
+/* Build and fold a POINTER_PLUS_EXPR at LOC offsetting PTR by OFF. */
+static inline tree
+fold_build_pointer_plus_loc (location_t loc, tree ptr, tree off)
+{
+ return fold_build2_loc (loc, POINTER_PLUS_EXPR, TREE_TYPE (ptr),
+ ptr, fold_convert_loc (loc, sizetype, off));
+}
+#define fold_build_pointer_plus(p,o) \
+ fold_build_pointer_plus_loc (UNKNOWN_LOCATION, p, o)
+
+/* Build and fold a POINTER_PLUS_EXPR at LOC offsetting PTR by OFF. */
+static inline tree
+fold_build_pointer_plus_hwi_loc (location_t loc, tree ptr, HOST_WIDE_INT off)
+{
+ return fold_build2_loc (loc, POINTER_PLUS_EXPR, TREE_TYPE (ptr),
+ ptr, size_int (off));
+}
+#define fold_build_pointer_plus_hwi(p,o) \
+ fold_build_pointer_plus_hwi_loc (UNKNOWN_LOCATION, p, o)
/* In builtins.c */
+extern bool avoid_folding_inline_builtin (tree);
extern tree fold_call_expr (location_t, tree, bool);
extern tree fold_builtin_fputs (location_t, tree, tree, bool, bool, tree);
extern tree fold_builtin_strcpy (location_t, tree, tree, tree, tree);
extern tree build_string_literal (int, const char *);
extern bool validate_arglist (const_tree, ...);
extern rtx builtin_memset_read_str (void *, HOST_WIDE_INT, enum machine_mode);
-extern bool can_trust_pointer_alignment (void);
-extern unsigned int get_pointer_alignment (tree, unsigned int);
extern bool is_builtin_name (const char *);
extern bool is_builtin_fn (tree);
extern unsigned int get_object_alignment_1 (tree, unsigned HOST_WIDE_INT *);
-extern unsigned int get_object_alignment (tree, unsigned int);
+extern unsigned int get_object_alignment (tree);
+extern unsigned int get_pointer_alignment (tree);
extern tree fold_call_stmt (gimple, bool);
extern tree gimple_fold_builtin_snprintf_chk (gimple, tree, enum built_in_function);
extern tree make_range (tree, int *, tree *, tree *, bool *);
+extern tree make_range_step (location_t, enum tree_code, tree, tree, tree,
+ tree *, tree *, int *, bool *);
extern tree build_range_check (location_t, tree, tree, int, tree, tree);
extern bool merge_ranges (int *, tree *, tree *, int, tree, tree, int,
tree, tree);
extern int real_twop (const_tree);
extern int real_minus_onep (const_tree);
extern void init_ttree (void);
-extern void build_common_tree_nodes (bool);
-extern void build_common_tree_nodes_2 (int);
+extern void build_common_tree_nodes (bool, bool);
extern void build_common_builtin_nodes (void);
extern tree build_nonstandard_integer_type (unsigned HOST_WIDE_INT, int);
extern tree build_range_type (tree, tree, tree);
extern const struct attribute_spec *lookup_attribute_spec (const_tree);
+extern void init_attributes (void);
+
/* Process the attributes listed in ATTRIBUTES and install them in *NODE,
which is either a DECL (including a TYPE_DECL) or a TYPE. If a DECL,
it should be modified in place; if a TYPE, a copy should be created
#endif
\f
-/* In dwarf2out.c */
-/* Interface of the DWARF2 unwind info support. */
-
-/* Generate a new label for the CFI info to refer to. */
-
-extern char *dwarf2out_cfi_label (bool);
-
-/* Entry point to update the canonical frame address (CFA). */
-
-extern void dwarf2out_def_cfa (const char *, unsigned, HOST_WIDE_INT);
-
-/* Add the CFI for saving a register window. */
-
-extern void dwarf2out_window_save (const char *);
-
-/* Entry point for saving a register to the stack. */
-
-extern void dwarf2out_reg_save (const char *, unsigned, HOST_WIDE_INT);
-
-/* Entry point for saving the return address in the stack. */
-
-extern void dwarf2out_return_save (const char *, HOST_WIDE_INT);
-
-/* Entry point for saving the return address in a register. */
-
-extern void dwarf2out_return_reg (const char *, unsigned);
-
-/* Entry point for saving the first register into the second. */
-
-extern void dwarf2out_reg_save_reg (const char *, rtx, rtx);
-
/* In tree-inline.c */
/* The type of a set of already-visited pointers. Functions for creating
#define tree_priority_map_hash tree_map_base_hash
#define tree_priority_map_marked_p tree_map_base_marked_p
+/* Map from a decl tree to a tree vector. */
+
+struct GTY(()) tree_vec_map {
+ struct tree_map_base base;
+ VEC(tree,gc) *to;
+};
+
+#define tree_vec_map_eq tree_map_base_eq
+#define tree_vec_map_hash tree_decl_map_hash
+#define tree_vec_map_marked_p tree_map_base_marked_p
+
/* In tree-ssa.c */
tree target_for_debug_bind (tree);
/* In tree-ssa-address.c. */
extern tree tree_mem_ref_addr (tree, tree);
extern void copy_mem_ref_info (tree, tree);
+extern void copy_ref_info (tree, tree);
/* In tree-vrp.c */
extern bool ssa_name_nonnegative_p (const_tree);
/* In gimple-low.c. */
extern bool block_may_fallthru (const_tree);
+\f
+/* Functional interface to the builtin functions. */
+
+/* The builtin_info structure holds the FUNCTION_DECL of the standard builtin
+ function, and a flag that says if the function is available implicitly, or
+ whether the user has to code explicit calls to __builtin_<xxx>. */
+
+typedef struct GTY(()) builtin_info_type_d {
+ tree decl[(int)END_BUILTINS];
+ bool implicit_p[(int)END_BUILTINS];
+} builtin_info_type;
+
+extern GTY(()) builtin_info_type builtin_info;
+
+/* Valid builtin number. */
+#define BUILTIN_VALID_P(FNCODE) \
+ (IN_RANGE ((int)FNCODE, ((int)BUILT_IN_NONE) + 1, ((int) END_BUILTINS) - 1))
+
+/* Return the tree node for an explicit standard builtin function or NULL. */
+static inline tree
+builtin_decl_explicit (enum built_in_function fncode)
+{
+ gcc_checking_assert (BUILTIN_VALID_P (fncode));
+
+ return builtin_info.decl[(size_t)fncode];
+}
+
+/* Return the tree node for an implicit builtin function or NULL. */
+static inline tree
+builtin_decl_implicit (enum built_in_function fncode)
+{
+ size_t uns_fncode = (size_t)fncode;
+ gcc_checking_assert (BUILTIN_VALID_P (fncode));
+
+ if (!builtin_info.implicit_p[uns_fncode])
+ return NULL_TREE;
+
+ return builtin_info.decl[uns_fncode];
+}
+
+/* Set explicit builtin function nodes and whether it is an implicit
+ function. */
+
+static inline void
+set_builtin_decl (enum built_in_function fncode, tree decl, bool implicit_p)
+{
+ size_t ufncode = (size_t)fncode;
+
+ gcc_checking_assert (BUILTIN_VALID_P (fncode)
+ && (decl != NULL_TREE || !implicit_p));
+
+ builtin_info.decl[ufncode] = decl;
+ builtin_info.implicit_p[ufncode] = implicit_p;
+}
+
+/* Set the implicit flag for a builtin function. */
+
+static inline void
+set_builtin_decl_implicit_p (enum built_in_function fncode, bool implicit_p)
+{
+ size_t uns_fncode = (size_t)fncode;
+
+ gcc_checking_assert (BUILTIN_VALID_P (fncode)
+ && builtin_info.decl[uns_fncode] != NULL_TREE);
+
+ builtin_info.implicit_p[uns_fncode] = implicit_p;
+}
+
+/* Return whether the standard builtin function can be used as an explicit
+ function. */
+
+static inline bool
+builtin_decl_explicit_p (enum built_in_function fncode)
+{
+ gcc_checking_assert (BUILTIN_VALID_P (fncode));
+ return (builtin_info.decl[(size_t)fncode] != NULL_TREE);
+}
+
+/* Return whether the standard builtin function can be used implicitly. */
+
+static inline bool
+builtin_decl_implicit_p (enum built_in_function fncode)
+{
+ size_t uns_fncode = (size_t)fncode;
+
+ gcc_checking_assert (BUILTIN_VALID_P (fncode));
+ return (builtin_info.decl[uns_fncode] != NULL_TREE
+ && builtin_info.implicit_p[uns_fncode]);
+}
+
#endif /* GCC_TREE_H */
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