/* Definitions for c-common.c.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
- 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_C_COMMON_H
#define GCC_C_COMMON_H
#include "splay-tree.h"
#include "cpplib.h"
+#include "ggc.h"
/* Usage of TREE_LANG_FLAG_?:
- 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
- TREE_NEGATED_INT (in INTEGER_CST).
+ 0: TREE_NEGATED_INT (in INTEGER_CST).
IDENTIFIER_MARKED (used by search routines).
- SCOPE_BEGIN_P (in SCOPE_STMT)
DECL_PRETTY_FUNCTION_P (in VAR_DECL)
- NEW_FOR_SCOPE_P (in FOR_STMT)
- ASM_INPUT_P (in ASM_STMT)
- STMT_EXPR_NO_SCOPE (in STMT_EXPR)
1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
- STMT_IS_FULL_EXPR_P (in _STMT)
- 2: STMT_LINENO_FOR_FN_P (in _STMT)
- 3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
- COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
- 4: SCOPE_PARTIAL_P (in SCOPE_STMT)
+ STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST)
+ 2: unused
+ 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST)
+ 4: unused
*/
/* Reserved identifiers. This is the union of all the keywords for C,
- C++, and Objective C. All the type modifiers have to be in one
+ C++, and Objective-C. All the type modifiers have to be in one
block at the beginning, because they are used as mask bits. There
are 27 type modifiers; if we add many more we will have to redesign
the mask mechanism. */
RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
/* C extensions */
- RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX,
+ RID_COMPLEX, RID_THREAD, RID_SAT,
/* C++ */
RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
/* C extensions */
RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
- RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_PTRBASE,
- RID_PTREXTENT, RID_PTRVALUE, RID_CHOOSE_EXPR, RID_TYPES_COMPATIBLE_P,
+ RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR,
+ RID_TYPES_COMPATIBLE_P,
+ RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128,
+ RID_FRACT, RID_ACCUM,
+
+ /* This means to warn that this is a C++ keyword, and then treat it
+ as a normal identifier. */
+ RID_CXX_COMPAT_WARN,
/* Too many ways of getting the name of a function as a string */
RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
RID_TEMPLATE, RID_NULL, RID_CATCH,
RID_DELETE, RID_FALSE, RID_NAMESPACE,
- RID_NEW, RID_OPERATOR, RID_THIS,
- RID_THROW, RID_TRUE, RID_TRY,
- RID_TYPENAME, RID_TYPEID, RID_USING,
+ RID_NEW, RID_OFFSETOF, RID_OPERATOR,
+ RID_THIS, RID_THROW, RID_TRUE,
+ RID_TRY, RID_TYPENAME, RID_TYPEID,
+ RID_USING, RID_CHAR16, RID_CHAR32,
/* casts */
RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
- /* alternate spellings */
- RID_AND, RID_AND_EQ, RID_NOT, RID_NOT_EQ,
- RID_OR, RID_OR_EQ, RID_XOR, RID_XOR_EQ,
- RID_BITAND, RID_BITOR, RID_COMPL,
-
- /* Objective C */
- RID_ID, RID_AT_ENCODE, RID_AT_END,
+ /* C++ extensions */
+ RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR,
+ RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN,
+ RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY,
+ RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR,
+ RID_IS_ABSTRACT, RID_IS_BASE_OF,
+ RID_IS_CONVERTIBLE_TO, RID_IS_CLASS,
+ RID_IS_EMPTY, RID_IS_ENUM,
+ RID_IS_POD, RID_IS_POLYMORPHIC,
+ RID_IS_UNION,
+
+ /* C++0x */
+ RID_STATIC_ASSERT, RID_DECLTYPE,
+
+ /* Objective-C */
+ RID_AT_ENCODE, RID_AT_END,
RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
- RID_AT_PROTOCOL, RID_AT_SELECTOR, RID_AT_INTERFACE,
+ RID_AT_PROTOCOL, RID_AT_SELECTOR,
+ RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
+ RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
+ RID_AT_INTERFACE,
RID_AT_IMPLEMENTATION,
RID_MAX,
RID_FIRST_MODIFIER = RID_STATIC,
RID_LAST_MODIFIER = RID_ONEWAY,
+ RID_FIRST_CXX0X = RID_STATIC_ASSERT,
+ RID_LAST_CXX0X = RID_DECLTYPE,
RID_FIRST_AT = RID_AT_ENCODE,
RID_LAST_AT = RID_AT_IMPLEMENTATION,
RID_FIRST_PQ = RID_IN,
};
#define OBJC_IS_AT_KEYWORD(rid) \
- ((unsigned int)(rid) >= (unsigned int)RID_FIRST_AT && \
- (unsigned int)(rid) <= (unsigned int)RID_LAST_AT)
+ ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \
+ (unsigned int) (rid) <= (unsigned int) RID_LAST_AT)
#define OBJC_IS_PQ_KEYWORD(rid) \
- ((unsigned int)(rid) >= (unsigned int)RID_FIRST_PQ && \
- (unsigned int)(rid) <= (unsigned int)RID_LAST_PQ)
+ ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \
+ (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ)
/* The elements of `ridpointers' are identifier nodes for the reserved
type names and storage classes. It is indexed by a RID_... value. */
-extern tree *ridpointers;
+extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers;
/* Standard named or nameless data types of the C compiler. */
enum c_tree_index
{
+ CTI_CHAR16_TYPE,
+ CTI_CHAR32_TYPE,
CTI_WCHAR_TYPE,
CTI_SIGNED_WCHAR_TYPE,
CTI_UNSIGNED_WCHAR_TYPE,
CTI_WIDEST_UINT_LIT_TYPE,
CTI_CHAR_ARRAY_TYPE,
+ CTI_CHAR16_ARRAY_TYPE,
+ CTI_CHAR32_ARRAY_TYPE,
CTI_WCHAR_ARRAY_TYPE,
CTI_INT_ARRAY_TYPE,
CTI_STRING_TYPE,
CTI_CONST_STRING_TYPE,
/* Type for boolean expressions (bool in C++, int in C). */
- CTI_BOOLEAN_TYPE,
- CTI_BOOLEAN_TRUE,
- CTI_BOOLEAN_FALSE,
- /* C99's _Bool type. */
- CTI_C_BOOL_TYPE,
- CTI_C_BOOL_TRUE,
- CTI_C_BOOL_FALSE,
- CTI_DEFAULT_FUNCTION_TYPE,
+ CTI_TRUTHVALUE_TYPE,
+ CTI_TRUTHVALUE_TRUE,
+ CTI_TRUTHVALUE_FALSE,
- CTI_G77_INTEGER_TYPE,
- CTI_G77_UINTEGER_TYPE,
- CTI_G77_LONGINT_TYPE,
- CTI_G77_ULONGINT_TYPE,
+ CTI_DEFAULT_FUNCTION_TYPE,
/* These are not types, but we have to look them up all the time. */
CTI_FUNCTION_NAME_DECL,
CTI_PRETTY_FUNCTION_NAME_DECL,
CTI_C99_FUNCTION_NAME_DECL,
CTI_SAVED_FUNCTION_NAME_DECLS,
-
+
CTI_VOID_ZERO,
+ CTI_NULL,
+
CTI_MAX
};
-#define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code)
+#define C_CPP_HASHNODE(id) \
+ (&(((struct c_common_identifier *) (id))->node))
+#define C_RID_CODE(id) \
+ ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code))
+#define C_SET_RID_CODE(id, code) \
+ (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code)
/* Identifier part common to the C front ends. Inherits from
tree_identifier, despite appearances. */
-struct c_common_identifier
+struct c_common_identifier GTY(())
{
struct tree_common common;
struct cpp_hashnode node;
};
+/* An entry in the reserved keyword table. */
+
+struct c_common_resword
+{
+ const char *const word;
+ ENUM_BITFIELD(rid) const rid : 16;
+ const unsigned int disable : 16;
+};
+
+/* Disable mask. Keywords are disabled if (reswords[i].disable &
+ mask) is _true_. Thus for keywords which are present in all
+ languages the disable field is zero. */
+
+#define D_CONLY 0x001 /* C only (not in C++). */
+#define D_CXXONLY 0x002 /* C++ only (not in C). */
+#define D_C99 0x004 /* In C, C99 only. */
+#define D_CXX0X 0x008 /* In C++, C++0X only. */
+#define D_EXT 0x010 /* GCC extension. */
+#define D_EXT89 0x020 /* GCC extension incorporated in C99. */
+#define D_ASM 0x040 /* Disabled by -fno-asm. */
+#define D_OBJC 0x080 /* In Objective C and neither C nor C++. */
+#define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */
+#define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */
+
+/* The reserved keyword table. */
+extern const struct c_common_resword c_common_reswords[];
+
+/* The number of items in the reserved keyword table. */
+extern const unsigned int num_c_common_reswords;
+
+#define char16_type_node c_global_trees[CTI_CHAR16_TYPE]
+#define char32_type_node c_global_trees[CTI_CHAR32_TYPE]
#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
#define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
#define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
-#define boolean_type_node c_global_trees[CTI_BOOLEAN_TYPE]
-#define boolean_true_node c_global_trees[CTI_BOOLEAN_TRUE]
-#define boolean_false_node c_global_trees[CTI_BOOLEAN_FALSE]
-
-#define c_bool_type_node c_global_trees[CTI_C_BOOL_TYPE]
-#define c_bool_true_node c_global_trees[CTI_C_BOOL_TRUE]
-#define c_bool_false_node c_global_trees[CTI_C_BOOL_FALSE]
+#define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE]
+#define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE]
+#define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE]
#define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
+#define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE]
+#define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE]
#define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
#define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE]
#define string_type_node c_global_trees[CTI_STRING_TYPE]
#define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
-/* g77 integer types, which which must be kept in sync with f/com.h */
-#define g77_integer_type_node c_global_trees[CTI_G77_INTEGER_TYPE]
-#define g77_uinteger_type_node c_global_trees[CTI_G77_UINTEGER_TYPE]
-#define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE]
-#define g77_ulongint_type_node c_global_trees[CTI_G77_ULONGINT_TYPE]
-
#define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL]
#define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL]
#define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL]
/* A node for `((void) 0)'. */
#define void_zero_node c_global_trees[CTI_VOID_ZERO]
-extern tree c_global_trees[CTI_MAX];
+/* The node for C++ `__null'. */
+#define null_node c_global_trees[CTI_NULL]
+
+extern GTY(()) tree c_global_trees[CTI_MAX];
+
+/* In a RECORD_TYPE, a sorted array of the fields of the type, not a
+ tree for size reasons. */
+struct sorted_fields_type GTY(())
+{
+ int len;
+ tree GTY((length ("%h.len"))) elts[1];
+};
/* Mark which labels are explicitly declared.
These may be shadowed, and may be referenced from nested functions. */
#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
-/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
- warning if they undergo concatenation. */
-#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
-
typedef enum c_language_kind
{
- clk_c, /* A dialect of C: K&R C, ANSI/ISO C89, C2000,
- etc. */
- clk_cplusplus, /* ANSI/ISO C++ */
- clk_objective_c /* Objective C */
+ clk_c = 0, /* C90, C94 or C99 */
+ clk_objc = 1, /* clk_c with ObjC features. */
+ clk_cxx = 2, /* ANSI/ISO C++ */
+ clk_objcxx = 3 /* clk_cxx with ObjC features. */
}
c_language_kind;
+/* To test for a specific language use c_language, defined by each
+ front end. For "ObjC features" or "not C++" use the macros. */
+extern c_language_kind c_language;
+
+#define c_dialect_cxx() (c_language & clk_cxx)
+#define c_dialect_objc() (c_language & clk_objc)
+
/* Information about a statement tree. */
-struct stmt_tree_s {
- /* The last statement added to the tree. */
- tree x_last_stmt;
- /* The type of the last expression statement. (This information is
- needed to implement the statement-expression extension.) */
- tree x_last_expr_type;
- /* The last filename we recorded. */
- const char *x_last_expr_filename;
- /* In C++, Non-zero if we should treat statements as full
+struct stmt_tree_s GTY(()) {
+ /* The current statement list being collected. */
+ tree x_cur_stmt_list;
+
+ /* In C++, Nonzero if we should treat statements as full
expressions. In particular, this variable is no-zero if at the
end of a statement we should destroy any temporaries created
during that statement. Similarly, if, at the end of a block, we
should destroy any local variables in this block. Normally, this
- variable is non-zero, since those are the normal semantics of
+ variable is nonzero, since those are the normal semantics of
C++.
However, in order to represent aggregate initialization code as
/* Global state pertinent to the current function. Some C dialects
extend this structure with additional fields. */
-struct language_function {
+struct c_language_function GTY(()) {
/* While we are parsing the function, this contains information
about the statement-tree that we are building. */
struct stmt_tree_s x_stmt_tree;
- /* The stack of SCOPE_STMTs for the current function. */
- tree x_scope_stmt_stack;
};
-/* When building a statement-tree, this is the last statement added to
- the tree. */
+/* When building a statement-tree, this is the current statement list
+ being collected. It's TREE_CHAIN is a back-pointer to the previous
+ statement list. */
-#define last_tree (current_stmt_tree ()->x_last_stmt)
+#define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list)
-/* The type of the last expression-statement we have seen. */
+/* Language-specific hooks. */
-#define last_expr_type (current_stmt_tree ()->x_last_expr_type)
+/* If non-NULL, this function is called after a precompile header file
+ is loaded. */
+extern void (*lang_post_pch_load) (void);
-/* The name of the last file we have seen. */
+extern void push_file_scope (void);
+extern void pop_file_scope (void);
+extern stmt_tree current_stmt_tree (void);
+extern tree push_stmt_list (void);
+extern tree pop_stmt_list (tree);
+extern tree add_stmt (tree);
+extern void push_cleanup (tree, tree, bool);
+extern tree pushdecl_top_level (tree);
+extern tree pushdecl (tree);
+extern tree build_modify_expr (location_t, tree, enum tree_code, tree);
+extern tree build_indirect_ref (location_t, tree, const char *);
-#define last_expr_filename (current_stmt_tree ()->x_last_expr_filename)
+extern int c_expand_decl (tree);
-/* LAST_TREE contains the last statement parsed. These are chained
- together through the TREE_CHAIN field, but often need to be
- re-organized since the parse is performed bottom-up. This macro
- makes LAST_TREE the indicated SUBSTMT of STMT. */
+extern int field_decl_cmp (const void *, const void *);
+extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
+ void *);
+extern bool has_c_linkage (const_tree decl);
+\f
+/* Switches common to the C front ends. */
-#define RECHAIN_STMTS(stmt, substmt) \
- do { \
- substmt = TREE_CHAIN (stmt); \
- TREE_CHAIN (stmt) = NULL_TREE; \
- last_tree = stmt; \
- } while (0)
+/* Nonzero if prepreprocessing only. */
-/* Language-specific hooks. */
+extern int flag_preprocess_only;
-extern int (*lang_statement_code_p) PARAMS ((enum tree_code));
-extern void (*lang_expand_stmt) PARAMS ((tree));
-extern void (*lang_expand_decl_stmt) PARAMS ((tree));
-extern void (*lang_expand_function_end) PARAMS ((void));
-
-/* Callback that determines if it's ok for a function to have no
- noreturn attribute. */
-extern int (*lang_missing_noreturn_ok_p) PARAMS ((tree));
-
-
-extern stmt_tree current_stmt_tree PARAMS ((void));
-extern tree *current_scope_stmt_stack PARAMS ((void));
-extern void begin_stmt_tree PARAMS ((tree *));
-extern tree add_stmt PARAMS ((tree));
-extern void add_decl_stmt PARAMS ((tree));
-extern tree add_scope_stmt PARAMS ((int, int));
-extern void finish_stmt_tree PARAMS ((tree *));
-
-extern int statement_code_p PARAMS ((enum tree_code));
-extern tree walk_stmt_tree PARAMS ((tree *,
- walk_tree_fn,
- void *));
-extern void prep_stmt PARAMS ((tree));
-extern void expand_stmt PARAMS ((tree));
-extern void mark_stmt_tree PARAMS ((void *));
-extern void shadow_warning PARAMS ((const char *,
- tree, tree));
-extern tree c_begin_if_stmt PARAMS ((void));
-extern tree c_begin_while_stmt PARAMS ((void));
-extern void c_finish_while_stmt_cond PARAMS ((tree, tree));
-
-
-/* Extra information associated with a DECL. Other C dialects extend
- this structure in various ways. The C front-end only uses this
- structure for FUNCTION_DECLs; all other DECLs have a NULL
- DECL_LANG_SPECIFIC field. */
-
-struct c_lang_decl {
- unsigned declared_inline : 1;
-};
+/* Zero means that faster, ...NonNil variants of objc_msgSend...
+ calls will be used in ObjC; passing nil receivers to such calls
+ will most likely result in crashes. */
+extern int flag_nil_receivers;
-/* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this is
- the approximate number of statements in this function. There is
- no need for this number to be exact; it is only used in various
- heuristics regarding optimization. */
-#define DECL_NUM_STMTS(NODE) \
- (FUNCTION_DECL_CHECK (NODE)->decl.u1.i)
+/* Nonzero means that we will allow new ObjC exception syntax (@throw,
+ @try, etc.) in source code. */
+extern int flag_objc_exceptions;
-extern void c_mark_lang_decl PARAMS ((struct c_lang_decl *));
+/* Nonzero means that we generate NeXT setjmp based exceptions. */
+extern int flag_objc_sjlj_exceptions;
-/* The variant of the C language being processed. Each C language
- front-end defines this variable. */
+/* Nonzero means that code generation will be altered to support
+ "zero-link" execution. This currently affects ObjC only, but may
+ affect other languages in the future. */
+extern int flag_zero_link;
-extern c_language_kind c_language;
+/* Nonzero means emit an '__OBJC, __image_info' for the current translation
+ unit. It will inform the ObjC runtime that class definition(s) herein
+ contained are to replace one(s) previously loaded. */
+extern int flag_replace_objc_classes;
-/* Nonzero means give string constants the type `const char *', rather
- than `char *'. */
+/* Nonzero means don't output line number information. */
-extern int flag_const_strings;
+extern char flag_no_line_commands;
+
+/* Nonzero causes -E output not to be done, but directives such as
+ #define that have side effects are still obeyed. */
+
+extern char flag_no_output;
+
+/* Nonzero means dump macros in some fashion; contains the 'D', 'M',
+ 'N' or 'U' of the command line switch. */
+
+extern char flag_dump_macros;
+
+/* Nonzero means pass #include lines through to the output. */
+
+extern char flag_dump_includes;
+
+/* Nonzero means process PCH files while preprocessing. */
+
+extern bool flag_pch_preprocess;
+
+/* The file name to which we should write a precompiled header, or
+ NULL if no header will be written in this compile. */
+
+extern const char *pch_file;
+
+/* Nonzero if an ISO standard was selected. It rejects macros in the
+ user's namespace. */
+
+extern int flag_iso;
+
+/* Nonzero if -undef was given. It suppresses target built-in macros
+ and assertions. */
+
+extern int flag_undef;
+
+/* Nonzero means don't recognize the non-ANSI builtin functions. */
+
+extern int flag_no_builtin;
+
+/* Nonzero means don't recognize the non-ANSI builtin functions.
+ -ansi sets this. */
+
+extern int flag_no_nonansi_builtin;
/* Nonzero means give `double' the same size as `float'. */
extern int flag_short_wchar;
-/* Warn about *printf or *scanf format/argument anomalies. */
-
-extern int warn_format;
-
-/* Warn about Y2K problems with strftime formats. */
+/* Nonzero means allow implicit conversions between vectors with
+ differing numbers of subparts and/or differing element types. */
+extern int flag_lax_vector_conversions;
-extern int warn_format_y2k;
+/* Nonzero means allow Microsoft extensions without warnings or errors. */
+extern int flag_ms_extensions;
-/* Warn about excess arguments to formats. */
+/* Nonzero means don't recognize the keyword `asm'. */
-extern int warn_format_extra_args;
+extern int flag_no_asm;
-/* Warn about non-literal format arguments. */
+/* Nonzero means give string constants the type `const char *', as mandated
+ by the standard. */
-extern int warn_format_nonliteral;
+extern int flag_const_strings;
-/* Warn about possible security problems with calls to format functions. */
+/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
-extern int warn_format_security;
+extern int flag_signed_bitfields;
-/* Warn about possible violations of sequence point rules. */
+/* Warn about #pragma directives that are not recognized. */
-extern int warn_sequence_point;
+extern int warn_unknown_pragmas; /* Tri state variable. */
-/* Warn about functions which might be candidates for format attributes. */
+/* Warn about format/argument anomalies in calls to formatted I/O functions
+ (*printf, *scanf, strftime, strfmon, etc.). */
-extern int warn_missing_format_attribute;
+extern int warn_format;
-/* Nonzero means warn about sizeof (function) or addition/subtraction
- of function pointers. */
-extern int warn_pointer_arith;
+/* C/ObjC language option variables. */
-/* Nonzero means to warn about compile-time division by zero. */
-extern int warn_div_by_zero;
-/* Nonzero means do some things the same way PCC does. */
+/* Nonzero means allow type mismatches in conditional expressions;
+ just make their values `void'. */
-extern int flag_traditional;
+extern int flag_cond_mismatch;
/* Nonzero means enable C89 Amendment 1 features. */
extern int flag_isoc99;
-/* Nonzero means environment is hosted (i.e., not freestanding) */
+/* Nonzero means that we have builtin functions, and main is an int. */
extern int flag_hosted;
-/* Nonzero means add default format_arg attributes for functions not
- in ISO C. */
+/* ObjC language option variables. */
-extern int flag_noniso_default_format_attributes;
-/* Nonzero means don't recognize any builtin functions. */
+/* Open and close the file for outputting class declarations, if
+ requested (ObjC). */
-extern int flag_no_builtin;
+extern int flag_gen_declaration;
-/* Nonzero means don't recognize the non-ANSI builtin functions.
- -ansi sets this. */
+/* Tells the compiler that this is a special run. Do not perform any
+ compiling, instead we are to test some platform dependent features
+ and output a C header file with appropriate definitions. */
-extern int flag_no_nonansi_builtin;
+extern int print_struct_values;
+
+/* ???. Undocumented. */
+
+extern const char *constant_string_class_name;
+
+
+/* C++ language option variables. */
+
+
+/* Nonzero means don't recognize any extension keywords. */
+
+extern int flag_no_gnu_keywords;
+
+/* Nonzero means do emit exported implementations of functions even if
+ they can be inlined. */
+
+extern int flag_implement_inlines;
+
+/* Nonzero means that implicit instantiations will be emitted if needed. */
-/* Nonzero means warn about suggesting putting in ()'s. */
+extern int flag_implicit_templates;
-extern int warn_parentheses;
+/* Nonzero means that implicit instantiations of inline templates will be
+ emitted if needed, even if instantiations of non-inline templates
+ aren't. */
-/* Warn if a type conversion is done that might have confusing results. */
+extern int flag_implicit_inline_templates;
-extern int warn_conversion;
+/* Nonzero means generate separate instantiation control files and
+ juggle them at link time. */
-/* Nonzero means warn about usage of long long,
- when `-pedantic' and not C99. */
+extern int flag_use_repository;
-extern int warn_long_long;
+/* Nonzero if we want to issue diagnostics that the standard says are not
+ required. */
+
+extern int flag_optional_diags;
+
+/* Nonzero means we should attempt to elide constructors when possible. */
+
+extern int flag_elide_constructors;
+
+/* Nonzero means that member functions defined in class scope are
+ inline by default. */
+
+extern int flag_default_inline;
+
+/* Controls whether compiler generates 'type descriptor' that give
+ run-time type information. */
+
+extern int flag_rtti;
+
+/* Nonzero if we want to conserve space in the .o files. We do this
+ by putting uninitialized data and runtime initialized data into
+ .common instead of .data at the expense of not flagging multiple
+ definitions. */
+
+extern int flag_conserve_space;
+
+/* Nonzero if we want to obey access control semantics. */
+
+extern int flag_access_control;
+
+/* Nonzero if we want to check the return value of new and avoid calling
+ constructors if it is a null pointer. */
+
+extern int flag_check_new;
+
+/* The supported C++ dialects. */
+
+enum cxx_dialect {
+ /* C++98 */
+ cxx98,
+ /* Experimental features that are likely to become part of
+ C++0x. */
+ cxx0x
+};
+
+/* The C++ dialect being used. C++98 is the default. */
+extern enum cxx_dialect cxx_dialect;
+
+/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
+ initialization variables.
+ 0: Old rules, set by -fno-for-scope.
+ 2: New ISO rules, set by -ffor-scope.
+ 1: Try to implement new ISO rules, but with backup compatibility
+ (and warnings). This is the default, for now. */
+
+extern int flag_new_for_scope;
+
+/* Nonzero if we want to emit defined symbols with common-like linkage as
+ weak symbols where possible, in order to conform to C++ semantics.
+ Otherwise, emit them as local symbols. */
+
+extern int flag_weak;
+
+/* 0 means we want the preprocessor to not emit line directives for
+ the current working directory. 1 means we want it to do it. -1
+ means we should decide depending on whether debugging information
+ is being emitted or not. */
+
+extern int flag_working_directory;
+
+/* Nonzero to use __cxa_atexit, rather than atexit, to register
+ destructors for local statics and global objects. */
+
+extern int flag_use_cxa_atexit;
+
+/* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling
+ logic. */
+
+extern int flag_use_cxa_get_exception_ptr;
+
+/* Nonzero means to implement standard semantics for exception
+ specifications, calling unexpected if an exception is thrown that
+ doesn't match the specification. Zero means to treat them as
+ assertions and optimize accordingly, but not check them. */
+
+extern int flag_enforce_eh_specs;
+
+/* Nonzero (the default) means to generate thread-safe code for
+ initializing local statics. */
+
+extern int flag_threadsafe_statics;
+
+/* Nonzero means warn about implicit declarations. */
+
+extern int warn_implicit;
+
+/* Warn about using __null (as NULL in C++) as sentinel. For code compiled
+ with GCC this doesn't matter as __null is guaranteed to have the right
+ size. */
+
+extern int warn_strict_null_sentinel;
+
+/* Maximum template instantiation depth. This limit is rather
+ arbitrary, but it exists to limit the time it takes to notice
+ infinite template instantiations. */
+
+extern int max_tinst_depth;
/* Nonzero means the expression being parsed will never be evaluated.
This is a count, since unevaluated expressions can nest. */
#define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \
(!C_TYPE_FUNCTION_P (type))
-/* Record in each node resulting from a binary operator
- what operator was specified for it. */
-#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
+/* Attribute table common to the C front ends. */
+extern const struct attribute_spec c_common_attribute_table[];
+extern const struct attribute_spec c_common_format_attribute_table[];
/* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
ID is the identifier to use, NAME is the string.
TYPE_DEP indicates whether it depends on type of the function or not
(i.e. __PRETTY_FUNCTION__). */
-extern tree (*make_fname_decl) PARAMS ((tree, int));
-
-extern tree identifier_global_value PARAMS ((tree));
-extern void record_builtin_type PARAMS ((enum rid,
- const char *, tree));
-extern tree build_void_list_node PARAMS ((void));
-extern void start_fname_decls PARAMS ((void));
-extern void finish_fname_decls PARAMS ((void));
-extern const char *fname_as_string PARAMS ((int));
-extern tree fname_decl PARAMS ((unsigned, tree));
-extern const char *fname_string PARAMS ((unsigned));
-
-extern void check_function_format PARAMS ((int *, tree, tree));
-extern void set_Wformat PARAMS ((int));
-extern tree handle_format_attribute PARAMS ((tree *, tree, tree,
- int, bool *));
-extern tree handle_format_arg_attribute PARAMS ((tree *, tree, tree,
- int, bool *));
-extern void c_common_insert_default_attributes PARAMS ((tree));
-extern void c_apply_type_quals_to_decl PARAMS ((int, tree));
-extern tree c_sizeof PARAMS ((tree));
-extern tree c_alignof PARAMS ((tree));
-extern tree c_alignof_expr PARAMS ((tree));
+extern tree (*make_fname_decl) (tree, int);
+
+extern tree identifier_global_value (tree);
+extern void record_builtin_type (enum rid, const char *, tree);
+extern tree build_void_list_node (void);
+extern void start_fname_decls (void);
+extern void finish_fname_decls (void);
+extern const char *fname_as_string (int);
+extern tree fname_decl (location_t, unsigned, tree);
+
+extern void check_function_arguments (tree, int, tree *, tree);
+extern void check_function_arguments_recurse (void (*)
+ (void *, tree,
+ unsigned HOST_WIDE_INT),
+ void *, tree,
+ unsigned HOST_WIDE_INT);
+extern bool check_builtin_function_arguments (tree, int, tree *);
+extern void check_function_format (tree, int, tree *);
+extern void set_Wformat (int);
+extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
+extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
+extern int c_common_handle_option (size_t code, const char *arg, int value);
+extern bool c_common_missing_argument (const char *opt, size_t code);
+extern tree c_common_type_for_mode (enum machine_mode, int);
+extern tree c_common_type_for_size (unsigned int, int);
+extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int,
+ int, int);
+extern tree c_common_unsigned_type (tree);
+extern tree c_common_signed_type (tree);
+extern tree c_common_signed_or_unsigned_type (int, tree);
+extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int);
+extern bool decl_with_nonnull_addr_p (const_tree);
+extern tree c_common_truthvalue_conversion (location_t, tree);
+extern void c_apply_type_quals_to_decl (int, tree);
+extern tree c_sizeof_or_alignof_type (tree, bool, int);
+extern tree c_alignof_expr (tree);
/* Print an error message for invalid operands to arith operation CODE.
NOP_EXPR is used as a special case (see truthvalue_conversion). */
-extern void binary_op_error PARAMS ((enum tree_code));
-extern tree c_expand_expr_stmt PARAMS ((tree));
-extern void c_expand_start_cond PARAMS ((tree, int, tree));
-extern void c_finish_then PARAMS ((void));
-extern void c_expand_start_else PARAMS ((void));
-extern void c_finish_else PARAMS ((void));
-extern void c_expand_end_cond PARAMS ((void));
-/* Validate the expression after `case' and apply default promotions. */
-extern tree check_case_value PARAMS ((tree));
-/* Concatenate a list of STRING_CST nodes into one STRING_CST. */
-extern tree combine_strings PARAMS ((tree));
-extern void constant_expression_warning PARAMS ((tree));
-extern tree convert_and_check PARAMS ((tree, tree));
-extern void overflow_warning PARAMS ((tree));
-extern void unsigned_conversion_warning PARAMS ((tree, tree));
-
-/* Read the rest of the current #-directive line. */
-extern char *get_directive_line PARAMS ((void));
-#define GET_DIRECTIVE_LINE() get_directive_line ()
+extern void binary_op_error (location_t, enum tree_code, tree, tree);
+extern tree fix_string_type (tree);
+struct varray_head_tag;
+extern void constant_expression_warning (tree);
+extern void constant_expression_error (tree);
+extern bool strict_aliasing_warning (tree, tree, tree);
+extern void warnings_for_convert_and_check (tree, tree, tree);
+extern tree convert_and_check (tree, tree);
+extern void overflow_warning (tree);
+extern void warn_logical_operator (enum tree_code, tree, tree);
+extern void check_main_parameter_types (tree decl);
+extern bool c_determine_visibility (tree);
+extern bool same_scalar_type_ignoring_signedness (tree, tree);
+
+#define c_sizeof(T) c_sizeof_or_alignof_type (T, true, 1)
+#define c_alignof(T) c_sizeof_or_alignof_type (T, false, 1)
+
+/* Subroutine of build_binary_op, used for certain operations. */
+extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise);
/* Subroutine of build_binary_op, used for comparison operations.
See if the operands have both been converted from subword integer types
and, if so, perhaps change them both back to their original type. */
-extern tree shorten_compare PARAMS ((tree *, tree *, tree *, enum tree_code *));
+extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *);
-extern tree pointer_int_sum PARAMS ((enum tree_code, tree, tree));
-extern unsigned int min_precision PARAMS ((tree, int));
+extern tree pointer_int_sum (enum tree_code, tree, tree);
/* Add qualifiers to a type, in the fashion for C. */
-extern tree c_build_qualified_type PARAMS ((tree, int));
+extern tree c_build_qualified_type (tree, int);
/* Build tree nodes and builtin functions common to both C and C++ language
frontends. */
-extern void c_common_nodes_and_builtins PARAMS ((void));
+extern void c_common_nodes_and_builtins (void);
-extern void disable_builtin_function PARAMS ((const char *));
+extern void set_builtin_user_assembler_name (tree decl, const char *asmspec);
-extern tree build_va_arg PARAMS ((tree, tree));
+extern void disable_builtin_function (const char *);
-extern void c_common_init_options PARAMS ((enum c_language_kind));
-extern void c_common_post_options PARAMS ((void));
-extern const char *c_common_init PARAMS ((const char *));
-extern void c_common_finish PARAMS ((void));
-extern HOST_WIDE_INT c_common_get_alias_set PARAMS ((tree));
-extern bool c_promoting_integer_type_p PARAMS ((tree));
-extern int self_promoting_args_p PARAMS ((tree));
-extern tree simple_type_promotes_to PARAMS ((tree));
-extern tree strip_array_types PARAMS ((tree));
+extern void set_compound_literal_name (tree decl);
-/* These macros provide convenient access to the various _STMT nodes. */
+extern tree build_va_arg (tree, tree);
-/* Nonzero if this statement should be considered a full-expression,
- i.e., if temporaries created during this statement should have
- their destructors run at the end of this statement. (In C, this
- will always be false, since there are no destructors.) */
-#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
-
-/* IF_STMT accessors. These give access to the condition of the if
- statement, the then block of the if statement, and the else block
- of the if statement if it exists. */
-#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
-#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
-#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
-
-/* WHILE_STMT accessors. These give access to the condition of the
- while statement and the body of the while statement, respectively. */
-#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
-#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
-
-/* DO_STMT accessors. These give access to the condition of the do
- statement and the body of the do statement, respectively. */
-#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
-#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
-
-/* RETURN_STMT accessors. These give the expression associated with a
- return statement, and whether it should be ignored when expanding
- (as opposed to inlining). */
-#define RETURN_EXPR(NODE) TREE_OPERAND (RETURN_STMT_CHECK (NODE), 0)
-
-/* EXPR_STMT accessor. This gives the expression associated with an
- expression statement. */
-#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
-
-/* FOR_STMT accessors. These give access to the init statement,
- condition, update expression, and body of the for statement,
- respectively. */
-#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
-#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
-#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
-#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
-
-/* SWITCH_STMT accessors. These give access to the condition, body and
- original condition type (before any compiler conversions)
- of the switch statement, respectively. */
-#define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
-#define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
-#define SWITCH_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
-
-/* CASE_LABEL accessors. These give access to the high and low values
- of a case label, respectively. */
-#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0)
-#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1)
-#define CASE_LABEL_DECL(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 2)
-
-/* GOTO_STMT accessor. This gives access to the label associated with
- a goto statement. */
-#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
-/* True for goto created artifically by the compiler. */
-#define GOTO_FAKE_P(NODE) (TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
-
-/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
- statements associated with a compound statement. The result is the
- first statement in the list. Succeeding nodes can be accessed by
- calling TREE_CHAIN on a node in the list. */
-#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
-
-/* ASM_STMT accessors. ASM_STRING returns a STRING_CST for the
- instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and
- ASM_CLOBBERS represent the outputs, inputs, and clobbers for the
- statement. */
-#define ASM_CV_QUAL(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 0)
-#define ASM_STRING(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 1)
-#define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 2)
-#define ASM_INPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 3)
-#define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4)
-
-/* DECL_STMT accessor. This gives access to the DECL associated with
- the given declaration statement. */
-#define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0)
-
-/* STMT_EXPR accessor. */
-#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
-
-/* Nonzero if this statement-expression does not have an associated scope. */
-#define STMT_EXPR_NO_SCOPE(NODE) \
- TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
-
-/* LABEL_STMT accessor. This gives access to the label associated with
- the given label statement. */
-#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
+extern unsigned int c_common_init_options (unsigned int, const char **);
+extern bool c_common_post_options (const char **);
+extern bool c_common_init (void);
+extern void c_common_finish (void);
+extern void c_common_parse_file (int);
+extern alias_set_type c_common_get_alias_set (tree);
+extern void c_register_builtin_type (tree, const char*);
+extern bool c_promoting_integer_type_p (const_tree);
+extern int self_promoting_args_p (const_tree);
+extern tree strip_pointer_operator (tree);
+extern tree strip_pointer_or_array_types (tree);
+extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT);
-/* COMPOUND_LITERAL_EXPR accessors. */
-#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
- TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
-#define COMPOUND_LITERAL_EXPR_DECL(NODE) \
- DECL_STMT_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE))
-
-/* Nonzero if this SCOPE_STMT is for the beginning of a scope. */
-#define SCOPE_BEGIN_P(NODE) \
- (TREE_LANG_FLAG_0 (SCOPE_STMT_CHECK (NODE)))
-
-/* Nonzero if this SCOPE_STMT is for the end of a scope. */
-#define SCOPE_END_P(NODE) \
- (!SCOPE_BEGIN_P (SCOPE_STMT_CHECK (NODE)))
-
-/* The BLOCK containing the declarations contained in this scope. */
-#define SCOPE_STMT_BLOCK(NODE) \
- (TREE_OPERAND (SCOPE_STMT_CHECK (NODE), 0))
-
-/* Nonzero for a SCOPE_STMT if there were no variables in this scope. */
-#define SCOPE_NULLIFIED_P(NODE) \
- (SCOPE_STMT_BLOCK ((NODE)) == NULL_TREE)
-
-/* Nonzero for a SCOPE_STMT which represents a lexical scope, but
- which should be treated as non-existent from the point of view of
- running cleanup actions. */
-#define SCOPE_NO_CLEANUPS_P(NODE) \
- (TREE_LANG_FLAG_3 (SCOPE_STMT_CHECK (NODE)))
-
-/* Nonzero for a SCOPE_STMT if this statement is for a partial scope.
- For example, in:
-
- S s;
- l:
- S s2;
- goto l;
-
- there is (implicitly) a new scope after `l', even though there are
- no curly braces. In particular, when we hit the goto, we must
- destroy s2 and then re-construct it. For the implicit scope,
- SCOPE_PARTIAL_P will be set. */
-#define SCOPE_PARTIAL_P(NODE) \
- (TREE_LANG_FLAG_4 (SCOPE_STMT_CHECK (NODE)))
-
-/* Nonzero for an ASM_STMT if the assembly statement is volatile. */
-#define ASM_VOLATILE_P(NODE) \
- (ASM_CV_QUAL (ASM_STMT_CHECK (NODE)) != NULL_TREE)
-
-/* The VAR_DECL to clean up in a CLEANUP_STMT. */
-#define CLEANUP_DECL(NODE) \
- TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
-/* The cleanup to run in a CLEANUP_STMT. */
-#define CLEANUP_EXPR(NODE) \
- TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
-
-/* The filename we are changing to as of this FILE_STMT. */
-#define FILE_STMT_FILENAME_NODE(NODE) \
- (TREE_OPERAND (FILE_STMT_CHECK (NODE), 0))
-#define FILE_STMT_FILENAME(NODE) \
- (IDENTIFIER_POINTER (FILE_STMT_FILENAME_NODE (NODE)))
-
-/* The line-number at which a statement began. But if
- STMT_LINENO_FOR_FN_P does holds, then this macro gives the
- line number for the end of the current function instead. */
-#define STMT_LINENO(NODE) \
- (TREE_COMPLEXITY ((NODE)))
-
-/* If non-zero, the STMT_LINENO for NODE is the line at which the
- function ended. */
-#define STMT_LINENO_FOR_FN_P(NODE) \
- (TREE_LANG_FLAG_2 ((NODE)))
+/* This is the basic parsing function. */
+extern void c_parse_file (void);
+/* This is misnamed, it actually performs end-of-compilation processing. */
+extern void finish_file (void);
-/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
- initialization variables. */
-#define NEW_FOR_SCOPE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
-/* Nonzero if we want to create an ASM_INPUT instead of an
- ASM_OPERAND with no operands. */
-#define ASM_INPUT_P(NODE) (TREE_LANG_FLAG_0 (NODE))
+/* These macros provide convenient access to the various _STMT nodes. */
-#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
+/* Nonzero if a given STATEMENT_LIST represents the outermost binding
+ if a statement expression. */
+#define STATEMENT_LIST_STMT_EXPR(NODE) \
+ TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE))
-enum c_tree_code {
- C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE,
-#include "c-common.def"
- LAST_C_TREE_CODE
-};
+/* Nonzero if a label has been added to the statement list. */
+#define STATEMENT_LIST_HAS_LABEL(NODE) \
+ TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE))
-#undef DEFTREECODE
-
-extern void add_c_tree_codes PARAMS ((void));
-extern void genrtl_do_pushlevel PARAMS ((void));
-extern void genrtl_goto_stmt PARAMS ((tree));
-extern void genrtl_expr_stmt PARAMS ((tree));
-extern void genrtl_expr_stmt_value PARAMS ((tree, int, int));
-extern void genrtl_decl_stmt PARAMS ((tree));
-extern void genrtl_if_stmt PARAMS ((tree));
-extern void genrtl_while_stmt PARAMS ((tree));
-extern void genrtl_do_stmt PARAMS ((tree));
-extern void genrtl_return_stmt PARAMS ((tree));
-extern void genrtl_for_stmt PARAMS ((tree));
-extern void genrtl_break_stmt PARAMS ((void));
-extern void genrtl_continue_stmt PARAMS ((void));
-extern void genrtl_scope_stmt PARAMS ((tree));
-extern void genrtl_switch_stmt PARAMS ((tree));
-extern void genrtl_case_label PARAMS ((tree));
-extern void genrtl_compound_stmt PARAMS ((tree));
-extern void genrtl_asm_stmt PARAMS ((tree, tree,
- tree, tree,
- tree, int));
-extern void genrtl_decl_cleanup PARAMS ((tree));
-extern int stmts_are_full_exprs_p PARAMS ((void));
-extern int anon_aggr_type_p PARAMS ((tree));
-
-/* For a VAR_DECL that is an anonymous union, these are the various
- sub-variables that make up the anonymous union. */
-#define DECL_ANON_UNION_ELEMS(NODE) DECL_ARGUMENTS ((NODE))
+/* COMPOUND_LITERAL_EXPR accessors. */
+#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
+ TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
+#define COMPOUND_LITERAL_EXPR_DECL(NODE) \
+ DECL_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE))
/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
#define DECL_C_BIT_FIELD(NODE) \
#define CLEAR_DECL_C_BIT_FIELD(NODE) \
(DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
-/* In a VAR_DECL, nonzero if the decl is a register variable with
- an explicit asm specification. */
-#define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL))
-
-extern void emit_local_var PARAMS ((tree));
-extern void make_rtl_for_local_static PARAMS ((tree));
-extern tree expand_cond PARAMS ((tree));
-extern tree c_expand_return PARAMS ((tree));
-extern tree do_case PARAMS ((tree, tree));
-extern tree build_stmt PARAMS ((enum tree_code, ...));
-extern tree build_case_label PARAMS ((tree, tree, tree));
-extern tree build_continue_stmt PARAMS ((void));
-extern tree build_break_stmt PARAMS ((void));
-extern tree build_return_stmt PARAMS ((tree));
+extern void emit_local_var (tree);
+extern tree do_case (tree, tree);
+extern tree build_stmt (enum tree_code, ...);
+extern tree build_case_label (tree, tree, tree);
-#define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE)
-
-/* Used by the C++ frontend to mark the block around the member
- initializers and cleanups. */
-#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
+/* These functions must be defined by each front-end which implements
+ a variant of the C language. They are used in c-common.c. */
-extern void c_expand_asm_operands PARAMS ((tree, tree, tree, tree, int, const char *, int));
+extern tree build_unary_op (location_t, enum tree_code, tree, int);
+extern tree build_binary_op (location_t, enum tree_code, tree, tree, int);
+extern tree perform_integral_promotions (tree);
/* These functions must be defined by each front-end which implements
- a variant of the C language. They are used in c-common.c. */
+ a variant of the C language. They are used by port files. */
-extern tree build_unary_op PARAMS ((enum tree_code,
- tree, int));
-extern tree build_binary_op PARAMS ((enum tree_code,
- tree, tree, int));
-extern int lvalue_p PARAMS ((tree));
-extern tree default_conversion PARAMS ((tree));
+extern tree default_conversion (tree);
/* Given two integer or real types, return the type for their sum.
Given two compatible ANSI C types, returns the merged type. */
-extern tree common_type PARAMS ((tree, tree));
+extern tree common_type (tree, tree);
-extern tree expand_tree_builtin PARAMS ((tree, tree, tree));
-
-extern tree decl_constant_value PARAMS ((tree));
+extern tree decl_constant_value (tree);
/* Handle increment and decrement of boolean types. */
-extern tree boolean_increment PARAMS ((enum tree_code,
- tree));
+extern tree boolean_increment (enum tree_code, tree);
-/* Hook currently used only by the C++ front end to reset internal state
- after entering or leaving a header file. */
-extern void extract_interface_info PARAMS ((void));
+extern int case_compare (splay_tree_key, splay_tree_key);
-extern void mark_c_language_function PARAMS ((struct language_function *));
+extern tree c_add_case_label (splay_tree, tree, tree, tree, tree);
-extern int case_compare PARAMS ((splay_tree_key,
- splay_tree_key));
+extern void c_do_switch_warnings (splay_tree, location_t, tree, tree);
-extern tree c_add_case_label PARAMS ((splay_tree,
- tree, tree,
- tree));
+extern tree build_function_call (tree, tree);
-extern tree build_function_call PARAMS ((tree, tree));
+extern tree resolve_overloaded_builtin (tree, tree);
-extern tree finish_label_address_expr PARAMS ((tree));
+extern tree finish_label_address_expr (tree, location_t);
/* Same function prototype, but the C and C++ front ends have
different implementations. Used in c-common.c. */
-extern tree lookup_label PARAMS ((tree));
+extern tree lookup_label (tree);
+extern tree lookup_name (tree);
-/* enum expand_modified is in expr.h, as is the macro below. */
+extern bool vector_targets_convertible_p (const_tree t1, const_tree t2);
+extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note);
-#ifdef QUEUED_VAR
-extern rtx c_expand_expr PARAMS ((tree, rtx, enum machine_mode,
- enum expand_modifier));
-#endif
+extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
-extern int c_safe_from_p PARAMS ((rtx, tree));
+extern tree c_staticp (tree);
-extern int c_staticp PARAMS ((tree));
+extern void init_c_lex (void);
-extern int c_unsafe_for_reeval PARAMS ((tree));
+extern void c_cpp_builtins (cpp_reader *);
+extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree);
+
+/* Positive if an implicit `extern "C"' scope has just been entered;
+ negative if such a scope has just been exited. */
+extern GTY(()) int pending_lang_change;
/* Information recorded about each file examined during compilation. */
struct c_fileinfo
{
int time; /* Time spent in the file. */
- short interface_only; /* Flags - used only by C++ */
+
+ /* Flags used only by C++.
+ INTERFACE_ONLY nonzero means that we are in an "interface" section
+ of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust
+ the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and
+ INTERFACE_ONLY is zero, it means that we are responsible for
+ exporting definitions that others might need. */
+ short interface_only;
short interface_unknown;
};
-struct c_fileinfo *get_fileinfo PARAMS ((const char *));
-extern void dump_time_statistics PARAMS ((void));
+struct c_fileinfo *get_fileinfo (const char *);
+extern void dump_time_statistics (void);
+
+extern bool c_dump_tree (void *, tree);
+
+extern void c_warn_unused_result (gimple_seq);
+
+extern void verify_sequence_points (tree);
+
+extern tree fold_offsetof (tree, tree);
+
+/* Places where an lvalue, or modifiable lvalue, may be required.
+ Used to select diagnostic messages in lvalue_error and
+ readonly_error. */
+enum lvalue_use {
+ lv_assign,
+ lv_increment,
+ lv_decrement,
+ lv_addressof,
+ lv_asm
+};
+
+extern void lvalue_error (enum lvalue_use);
+
+extern int complete_array_type (tree *, tree, bool);
+
+extern tree builtin_type_for_size (int, bool);
+
+extern void warn_array_subscript_with_type_char (tree);
+extern void warn_about_parentheses (enum tree_code,
+ enum tree_code, tree,
+ enum tree_code, tree);
+extern void warn_for_unused_label (tree label);
+extern void warn_for_div_by_zero (location_t, tree divisor);
+extern void warn_for_sign_compare (location_t,
+ tree orig_op0, tree orig_op1,
+ tree op0, tree op1,
+ tree result_type,
+ enum tree_code resultcode);
+
+/* In c-gimplify.c */
+extern void c_genericize (tree);
+extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *);
+extern tree c_build_bind_expr (tree, tree);
+
+/* In c-pch.c */
+extern void pch_init (void);
+extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd);
+extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd,
+ const char *orig);
+extern void c_common_write_pch (void);
+extern void c_common_no_more_pch (void);
+extern void c_common_pch_pragma (cpp_reader *pfile, const char *);
+extern void c_common_print_pch_checksum (FILE *f);
+
+/* In *-checksum.c */
+extern const unsigned char executable_checksum[16];
+
+/* In c-cppbuiltin.c */
+extern void builtin_define_std (const char *macro);
+extern void builtin_define_with_value (const char *, const char *, int);
+extern void c_stddef_cpp_builtins (void);
+extern void fe_file_change (const struct line_map *);
+extern void c_parse_error (const char *, enum cpp_ttype, tree);
+
+/* Objective-C / Objective-C++ entry points. */
+
+/* The following ObjC/ObjC++ functions are called by the C and/or C++
+ front-ends; they all must have corresponding stubs in stub-objc.c. */
+extern tree objc_is_class_name (tree);
+extern tree objc_is_object_ptr (tree);
+extern void objc_check_decl (tree);
+extern int objc_is_reserved_word (tree);
+extern bool objc_compare_types (tree, tree, int, tree);
+extern void objc_volatilize_decl (tree);
+extern bool objc_type_quals_match (tree, tree);
+extern tree objc_rewrite_function_call (tree, tree);
+extern tree objc_message_selector (void);
+extern tree objc_lookup_ivar (tree, tree);
+extern void objc_clear_super_receiver (void);
+extern int objc_is_public (tree, tree);
+extern tree objc_is_id (tree);
+extern void objc_declare_alias (tree, tree);
+extern void objc_declare_class (tree);
+extern void objc_declare_protocols (tree);
+extern tree objc_build_message_expr (tree);
+extern tree objc_finish_message_expr (tree, tree, tree);
+extern tree objc_build_selector_expr (tree);
+extern tree objc_build_protocol_expr (tree);
+extern tree objc_build_encode_expr (tree);
+extern tree objc_build_string_object (tree);
+extern tree objc_get_protocol_qualified_type (tree, tree);
+extern tree objc_get_class_reference (tree);
+extern tree objc_get_class_ivars (tree);
+extern void objc_start_class_interface (tree, tree, tree);
+extern void objc_start_category_interface (tree, tree, tree);
+extern void objc_start_protocol (tree, tree);
+extern void objc_continue_interface (void);
+extern void objc_finish_interface (void);
+extern void objc_start_class_implementation (tree, tree);
+extern void objc_start_category_implementation (tree, tree);
+extern void objc_continue_implementation (void);
+extern void objc_finish_implementation (void);
+extern void objc_set_visibility (int);
+extern void objc_set_method_type (enum tree_code);
+extern tree objc_build_method_signature (tree, tree, tree, bool);
+extern void objc_add_method_declaration (tree);
+extern void objc_start_method_definition (tree);
+extern void objc_finish_method_definition (tree);
+extern void objc_add_instance_variable (tree);
+extern tree objc_build_keyword_decl (tree, tree, tree);
+extern tree objc_build_throw_stmt (tree);
+extern void objc_begin_try_stmt (location_t, tree);
+extern tree objc_finish_try_stmt (void);
+extern void objc_begin_catch_clause (tree);
+extern void objc_finish_catch_clause (void);
+extern void objc_build_finally_clause (location_t, tree);
+extern tree objc_build_synchronized (location_t, tree, tree);
+extern int objc_static_init_needed_p (void);
+extern tree objc_generate_static_init_call (tree);
+extern tree objc_generate_write_barrier (tree, enum tree_code, tree);
+
+/* The following are provided by the C and C++ front-ends, and called by
+ ObjC/ObjC++. */
+extern void *objc_get_current_scope (void);
+extern void objc_mark_locals_volatile (void *);
+
+/* In c-ppoutput.c */
+extern void init_pp_output (FILE *);
+extern void preprocess_file (cpp_reader *);
+extern void pp_file_change (const struct line_map *);
+extern void pp_dir_change (cpp_reader *, const char *);
+extern bool check_missing_format_attribute (tree, tree);
+
+/* In c-omp.c */
+extern tree c_finish_omp_master (tree);
+extern tree c_finish_omp_critical (tree, tree);
+extern tree c_finish_omp_ordered (tree);
+extern void c_finish_omp_barrier (void);
+extern tree c_finish_omp_atomic (enum tree_code, tree, tree);
+extern void c_finish_omp_flush (void);
+extern void c_finish_omp_taskwait (void);
+extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree);
+extern void c_split_parallel_clauses (tree, tree *, tree *);
+extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree);
+
+/* Not in c-omp.c; provided by the front end. */
+extern bool c_omp_sharing_predetermined (tree);
+extern tree c_omp_remap_decl (tree, bool);
+extern void record_types_used_by_current_var_decl (tree);
+
+/* In order for the format checking to accept the C frontend
+ diagnostic framework extensions, you must include this file before
+ toplev.h, not after. The C front end formats are a subset of those
+ for C++, so they are the appropriate set to use in common code;
+ cp-tree.h overrides this for C++. */
+#ifndef GCC_DIAG_STYLE
+#define GCC_DIAG_STYLE __gcc_cdiag__
+#endif
#endif /* ! GCC_C_COMMON_H */
projects / msp430-gcc.git / blobdiff