#ifndef GCC_C_COMMON_H
#define GCC_C_COMMON_H
+#include "splay-tree.h"
+
/* Usage of TREE_LANG_FLAG_?:
0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
TREE_NEGATED_INT (in INTEGER_CST).
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,
/* 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;
+ /* Nonzero if __FUNCTION__ and its ilk have been declared in this
+ function. */
+ int x_function_name_declared_p;
};
/* When building a statement-tree, this is the last statement added to
#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));
+
/* The type of a function that walks over tree structure. */
typedef tree (*walk_tree_fn) PARAMS ((tree *,
void *));
extern stmt_tree current_stmt_tree PARAMS ((void));
+extern tree *current_scope_stmt_stack PARAMS ((void));
extern void begin_stmt_tree PARAMS ((tree *));
-extern void add_stmt 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 int (*lang_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 {
+ /* In a FUNCTION_DECL, this is DECL_SAVED_TREE. */
+ tree saved_tree;
+};
+
+/* In a FUNCTION_DECL, the saved representation of the body of the
+ entire function. Usually a COMPOUND_STMT, but in C++ this may also
+ be a RETURN_INIT, CTOR_INITIALIZER, or TRY_BLOCK. */
+#define DECL_SAVED_TREE(NODE) \
+ (((struct c_lang_decl *) DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE))) \
+ ->saved_tree)
+
+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 void declare_function_name PARAMS ((void));
extern void decl_attributes PARAMS ((tree, tree, tree));
extern void init_function_format_info PARAMS ((void));
-extern void check_function_format PARAMS ((tree, tree, tree));
+extern void check_function_format PARAMS ((int *, tree, tree, tree));
extern void c_apply_type_quals_to_decl PARAMS ((int, 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 void c_expand_expr_stmt PARAMS ((tree));
-extern void c_expand_start_cond PARAMS ((tree, int, int));
+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));
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. */
extern void add_c_tree_codes PARAMS ((void));
extern void genrtl_do_pushlevel PARAMS ((void));
-extern void genrtl_clear_out_block 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_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, 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));
extern void genrtl_decl_cleanup PARAMS ((tree, tree));
extern int stmts_are_full_exprs_p PARAMS ((void));
-typedef void (*expand_expr_stmt_fn) PARAMS ((tree));
-extern expand_expr_stmt_fn lang_expand_expr_stmt;
extern int anon_aggr_type_p PARAMS ((tree));
/* For a VAR_DECL that is an anonymous union, these are the various
extern void emit_local_var PARAMS ((tree));
extern void make_rtl_for_local_static PARAMS ((tree));
extern tree expand_cond PARAMS ((tree));
-extern tree expand_stmt PARAMS ((tree));
-extern tree lang_expand_stmt PARAMS ((tree));
extern void c_expand_return PARAMS ((tree));
-extern tree c_expand_start_case PARAMS ((tree));
extern void do_case PARAMS ((tree, tree));
extern tree build_stmt PARAMS ((enum tree_code, ...));
-extern tree build_case_label PARAMS ((tree, tree));
+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));
-extern int current_function_name_declared PARAMS ((void));
-extern void set_current_function_name_declared PARAMS ((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 expand_tree_builtin PARAMS ((tree, tree, tree));
+extern tree decl_constant_value PARAMS ((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));
+
+#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
+
/* Information recorded about each file examined during compilation. */
struct c_fileinfo
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