diff options
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 62 |
1 files changed, 62 insertions, 0 deletions
@@ -4611,6 +4611,65 @@ extern GTY(()) tree current_function_decl; /* Nonzero means a FUNC_BEGIN label was emitted. */ extern GTY(()) const char * current_function_func_begin_label; +/* Iterator for going through the function arguments. */ +typedef struct { + tree fntype; /* function type declaration */ + tree next; /* TREE_LIST pointing to the next argument */ +} function_args_iterator; + +/* Initialize the iterator I with arguments from function FNDECL */ + +static inline void +function_args_iter_init (function_args_iterator *i, tree fntype) +{ + i->fntype = fntype; + i->next = TYPE_ARG_TYPES (fntype); +} + +/* Return a pointer that holds the next argument if there are more arguments to + handle, otherwise return NULL. */ + +static inline tree * +function_args_iter_cond_ptr (function_args_iterator *i) +{ + return (i->next) ? &TREE_VALUE (i->next) : NULL; +} + +/* Return the next argument if there are more arguments to handle, otherwise + return NULL. */ + +static inline tree +function_args_iter_cond (function_args_iterator *i) +{ + return (i->next) ? TREE_VALUE (i->next) : NULL_TREE; +} + +/* Advance to the next argument. */ +static inline void +function_args_iter_next (function_args_iterator *i) +{ + gcc_assert (i->next != NULL_TREE); + i->next = TREE_CHAIN (i->next); +} + +/* Loop over all function arguments of FNTYPE. In each iteration, PTR is set + to point to the next tree element. ITER is an instance of + function_args_iterator used to iterate the arguments. */ +#define FOREACH_FUNCTION_ARGS_PTR(FNTYPE, PTR, ITER) \ + for (function_args_iter_init (&(ITER), (FNTYPE)); \ + (PTR = function_args_iter_cond_ptr (&(ITER))) != NULL; \ + function_args_iter_next (&(ITER))) + +/* Loop over all function arguments of FNTYPE. In each iteration, TREE is set + to the next tree element. ITER is an instance of function_args_iterator + used to iterate the arguments. */ +#define FOREACH_FUNCTION_ARGS(FNTYPE, TREE, ITER) \ + for (function_args_iter_init (&(ITER), (FNTYPE)); \ + (TREE = function_args_iter_cond (&(ITER))) != NULL_TREE; \ + function_args_iter_next (&(ITER))) + + + /* In tree.c */ extern unsigned crc32_string (unsigned, const char *); extern void clean_symbol_name (char *); @@ -4627,6 +4686,9 @@ extern bool empty_body_p (tree); extern tree call_expr_arg (tree, int); extern tree *call_expr_argp (tree, int); extern tree call_expr_arglist (tree); +extern bool stdarg_p (tree); +extern bool prototype_p (tree); +extern int function_args_count (tree); extern bool auto_var_in_fn_p (const_tree, const_tree); /* In stmt.c */ |