/* Definitions for c-common.c. Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001 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 version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 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. */ #ifndef GCC_C_COMMON_H #define GCC_C_COMMON_H #include "splay-tree.h" #include "cpplib.h" /* Usage of TREE_LANG_FLAG_?: 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT). 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) 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) 4: SCOPE_PARTIAL_P (in SCOPE_STMT) */ /* 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 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. */ enum rid { /* Modifiers: */ /* C, in empirical order of frequency. */ RID_STATIC = 0, RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN, RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE, RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, /* C extensions */ RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX, /* C++ */ RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, /* ObjC */ RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, /* C */ RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, RID_SIZEOF, /* 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, /* Too many ways of getting the name of a function as a string */ RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, /* C++ */ RID_BOOL, RID_WCHAR, RID_CLASS, 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, /* 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, 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_IMPLEMENTATION, RID_MAX, RID_FIRST_MODIFIER = RID_STATIC, RID_LAST_MODIFIER = RID_ONEWAY, RID_FIRST_AT = RID_AT_ENCODE, RID_LAST_AT = RID_AT_IMPLEMENTATION, RID_FIRST_PQ = RID_IN, RID_LAST_PQ = RID_ONEWAY }; #define OBJC_IS_AT_KEYWORD(rid) \ ((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) /* 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; /* Standard named or nameless data types of the C compiler. */ enum c_tree_index { CTI_WCHAR_TYPE, CTI_SIGNED_WCHAR_TYPE, CTI_UNSIGNED_WCHAR_TYPE, CTI_WINT_TYPE, CTI_C_SIZE_TYPE, /* The type used for the size_t typedef and the result type of sizeof (an ordinary type without TYPE_IS_SIZETYPE set, unlike the internal sizetype). */ CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ CTI_INTMAX_TYPE, CTI_UINTMAX_TYPE, CTI_WIDEST_INT_LIT_TYPE, CTI_WIDEST_UINT_LIT_TYPE, CTI_CHAR_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_G77_INTEGER_TYPE, CTI_G77_UINTEGER_TYPE, CTI_G77_LONGINT_TYPE, CTI_G77_ULONGINT_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_MAX }; #define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code) /* Identifier part common to the C front ends. Inherits from tree_identifier, despite appearances. */ struct c_common_identifier { struct tree_common common; struct cpp_hashnode node; }; #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 wint_type_node c_global_trees[CTI_WINT_TYPE] #define c_size_type_node c_global_trees[CTI_C_SIZE_TYPE] #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] #define uintmax_type_node c_global_trees[CTI_UINTMAX_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 char_array_type_node c_global_trees[CTI_CHAR_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 const_string_type_node c_global_trees[CTI_CONST_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] #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] /* A node for `((void) 0)'. */ #define void_zero_node c_global_trees[CTI_VOID_ZERO] extern tree c_global_trees[CTI_MAX]; /* 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) 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 */ } c_language_kind; /* 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; /* In C++, Non-zero 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 C++. However, in order to represent aggregate initialization code as tree structure, we use statement-expressions. The statements within the statement expression should not result in cleanups being run until the entire enclosing statement is complete. This flag has no effect in C. */ int stmts_are_full_exprs_p; }; typedef struct stmt_tree_s *stmt_tree; /* Global state pertinent to the current function. Some C dialects extend this structure with additional fields. */ struct language_function { /* 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. */ #define last_tree (current_stmt_tree ()->x_last_stmt) /* The type of the last expression-statement we have seen. */ #define last_expr_type (current_stmt_tree ()->x_last_expr_type) /* 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. */ #define RECHAIN_STMTS(stmt, substmt) \ do { \ substmt = TREE_CHAIN (stmt); \ TREE_CHAIN (stmt) = NULL_TREE; \ last_tree = stmt; \ } while (0) /* Language-specific hooks. */ 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 *)); /* 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; }; /* 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) extern void c_mark_lang_decl PARAMS ((struct c_lang_decl *)); /* The variant of the C language being processed. Each C language front-end defines this variable. */ extern c_language_kind c_language; /* Nonzero means give string constants the type `const char *', rather than `char *'. */ extern int flag_const_strings; /* Nonzero means give `double' the same size as `float'. */ extern int flag_short_double; /* Nonzero means give `wchar_t' the same size as `short'. */ extern int flag_short_wchar; /* Warn about *printf or *scanf format/argument anomalies. */ extern int warn_format; /* Warn about Y2K problems with strftime formats. */ extern int warn_format_y2k; /* Warn about excess arguments to formats. */ extern int warn_format_extra_args; /* Warn about non-literal format arguments. */ extern int warn_format_nonliteral; /* Warn about possible security problems with calls to format functions. */ extern int warn_format_security; /* Warn about possible violations of sequence point rules. */ extern int warn_sequence_point; /* Warn about functions which might be candidates for format attributes. */ extern int warn_missing_format_attribute; /* Nonzero means warn about sizeof (function) or addition/subtraction of function pointers. */ extern int warn_pointer_arith; /* 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. */ extern int flag_traditional; /* Nonzero means enable C89 Amendment 1 features. */ extern int flag_isoc94; /* Nonzero means use the ISO C99 dialect of C. */ extern int flag_isoc99; /* Nonzero means environment is hosted (i.e., not freestanding) */ extern int flag_hosted; /* Nonzero means add default format_arg attributes for functions not in ISO C. */ extern int flag_noniso_default_format_attributes; /* Nonzero means don't recognize any 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 warn about suggesting putting in ()'s. */ extern int warn_parentheses; /* Warn if a type conversion is done that might have confusing results. */ extern int warn_conversion; /* Nonzero means warn about usage of long long, when `-pedantic' and not C99. */ extern int warn_long_long; /* C types are partitioned into three subsets: object, function, and incomplete types. */ #define C_TYPE_OBJECT_P(type) \ (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) #define C_TYPE_INCOMPLETE_P(type) \ (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) #define C_TYPE_FUNCTION_P(type) \ (TREE_CODE (type) == FUNCTION_TYPE) /* Return the qualifiers that apply to this type. In C++, that means descending through array types. Note that this macro evaluates its arguments mor than once. */ #define C_TYPE_QUALS(TYPE) \ (TYPE_QUALS ((TREE_CODE (TYPE) == ARRAY_TYPE \ && c_language == clk_cplusplus) \ ? strip_array_types (TYPE) : TYPE)) /* For convenience we define a single macro to identify the class of object or incomplete types. */ #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)) /* 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)); /* 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)); 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 () /* 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 unsigned int min_precision PARAMS ((tree, int)); /* Add qualifiers to a type, in the fashion for C. */ extern tree c_build_qualified_type PARAMS ((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 tree build_va_arg PARAMS ((tree, tree)); extern void c_common_lang_init 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)); /* These macros provide convenient access to the various _STMT nodes. */ /* 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 stsatement 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 and body 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) /* 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) /* COMPOUND_STMT accessor. This gives access to the TREE_LIST of statements assocated with a compound statement. The result is the first statement in the list. Succeeding nodes can be acccessed 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) /* 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) /* 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 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))) /* 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)) #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM, enum c_tree_code { C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE, #include "c-common.def" LAST_C_TREE_CODE }; #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_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, 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)) /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ #define DECL_C_BIT_FIELD(NODE) \ (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) #define SET_DECL_C_BIT_FIELD(NODE) \ (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) #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)); #define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE) extern void c_expand_asm_operands PARAMS ((tree, tree, tree, tree, int, const char *, int)); /* 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 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)); /* 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 expand_tree_builtin PARAMS ((tree, tree, tree)); extern tree decl_constant_value PARAMS ((tree)); /* Handle increment and decrement of boolean types. */ extern tree boolean_increment PARAMS ((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 void mark_c_language_function PARAMS ((struct language_function *)); extern int case_compare PARAMS ((splay_tree_key, splay_tree_key)); extern tree c_add_case_label PARAMS ((splay_tree, tree, tree, tree)); extern tree build_function_call PARAMS ((tree, tree)); extern tree finish_label_address_expr PARAMS ((tree)); /* Same function prototype, but the C and C++ front ends have different implementations. Used in c-common.c. */ extern tree lookup_label PARAMS ((tree)); /* If this variable is defined to a non-NULL value, it will be called after the file has been completely parsed. The argument will be the GLOBAL_NAMESPACE in C++, or the list of top-level declarations in C. */ extern void (*back_end_hook) PARAMS ((tree)); #ifdef RTX_CODE extern struct rtx_def *c_expand_expr PARAMS ((tree, rtx, enum machine_mode, enum expand_modifier)); extern int c_safe_from_p PARAMS ((rtx, tree)); #endif extern int c_unsafe_for_reeval PARAMS ((tree)); /* In c-dump.c */ /* Different tree dump places. When you add new tree dump places, extend the DUMP_FILES array in c-dump.c */ enum tree_dump_index { TDI_all, /* dump the whole translation unit */ TDI_class, /* dump class heirarchy */ TDI_original, /* dump each function before optimizing it */ TDI_optimized, /* dump each function after optimizing it */ TDI_inlined, /* dump each function after inlining within it. */ TDI_end }; /* Bit masks to control tree dumping. Not all values are applicable to all tree dumps. Add new ones at the end. When you define new values, extend the DUMP_OPTIONS array in c-dump.c */ #define TDF_ADDRESS (1 << 0) /* dump node addresses */ #define TDF_SLIM (1 << 1) /* don't go wild following links */ typedef struct dump_info *dump_info_p; /* A callback function used dump language-specific parts of tree nodes. Returns non-zero if it does not want the usual dumping of the second argument. */ typedef int (*dump_tree_fn) PARAMS ((dump_info_p, tree)); extern dump_tree_fn lang_dump_tree; extern int dump_flag PARAMS ((dump_info_p, int, tree)); extern int dump_enabled_p PARAMS ((enum tree_dump_index)); extern FILE *dump_begin PARAMS ((enum tree_dump_index, int *)); extern void dump_end PARAMS ((enum tree_dump_index, FILE *)); extern void dump_node PARAMS ((tree, int, FILE *)); extern int dump_switch_p PARAMS ((const char *)); extern const char *dump_flag_name PARAMS ((enum tree_dump_index)); /* 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++ */ short interface_unknown; }; struct c_fileinfo *get_fileinfo PARAMS ((const char *)); extern void dump_time_statistics PARAMS ((void)); #endif /* ! GCC_C_COMMON_H */