void
mark_exp_read (tree exp)
{
if (exp == NULL)
return;
switch (TREE_CODE (exp))
{
case VAR_DECL:
case PARM_DECL:
DECL_READ_P (exp) = 1;
break;
case ARRAY_REF:
case COMPONENT_REF:
case MODIFY_EXPR:
case REALPART_EXPR:
case IMAGPART_EXPR:
CASE_CONVERT:
case ADDR_EXPR:
case INDIRECT_REF:
mark_exp_read (TREE_OPERAND (exp, 0));
break;
case COMPOUND_EXPR:
mark_exp_read (TREE_OPERAND (exp, 1));
break;
case COND_EXPR:
if (TREE_OPERAND (exp, 1))
mark_exp_read (TREE_OPERAND (exp, 1));
if (TREE_OPERAND (exp, 2))
mark_exp_read (TREE_OPERAND (exp, 2));
break;
default:
break;
}
}
static tree
make_fname_decl ()
{
const char *name = lang_hooks.decl_printable_name (current_function_decl, 0);
tree decl, type, init;
size_t length = strlen (name);
type = build_array_type (build_type_variant (char_type_node, true, false),
build_index_type (size_int (length)));
decl = build_decl (UNKNOWN_LOCATION, VAR_DECL,
get_identifier ("__function_name__"), type);
TREE_STATIC (decl) = 1;
TREE_READONLY (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
init = build_string (length + 1, name);
TREE_TYPE (init) = type;
TREE_READONLY (init) = 1;
DECL_READ_P (decl) = 1;
DECL_INITIAL (decl) = init;
TREE_USED (decl) = 1;
TREE_ADDRESSABLE (decl) = 1;
DECL_CONTEXT (decl) = current_function_decl;
return decl;
}
static void
initialize_handler_parm (tree decl, tree exp)
{
tree init;
tree init_type;
/* Make sure we mark the catch param as used, otherwise we'll get a
warning about an unused ((anonymous)). */
TREE_USED (decl) = 1;
DECL_READ_P (decl) = 1;
/* Figure out the type that the initializer is. Pointers are returned
adjusted by value from __cxa_begin_catch. Others are returned by
reference. */
init_type = TREE_TYPE (decl);
if (!POINTER_TYPE_P (init_type))
init_type = build_reference_type (init_type);
choose_personality_routine (decl_is_java_type (init_type, 0)
? lang_java : lang_cplusplus);
/* Since pointers are passed by value, initialize a reference to
pointer catch parm with the address of the temporary. */
if (TREE_CODE (init_type) == REFERENCE_TYPE
&& TYPE_PTR_P (TREE_TYPE (init_type)))
exp = cp_build_addr_expr (exp, tf_warning_or_error);
exp = ocp_convert (init_type, exp, CONV_IMPLICIT|CONV_FORCE_TEMP, 0,
tf_warning_or_error);
init = convert_from_reference (exp);
/* If the constructor for the catch parm exits via an exception, we
must call terminate. See eh23.C. */
if (TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (decl)))
{
/* Generate the copy constructor call directly so we can wrap it.
See also expand_default_init. */
init = ocp_convert (TREE_TYPE (decl), init,
CONV_IMPLICIT|CONV_FORCE_TEMP, 0,
tf_warning_or_error);
/* Force cleanups now to avoid nesting problems with the
MUST_NOT_THROW_EXPR. */
init = fold_build_cleanup_point_expr (TREE_TYPE (init), init);
init = build_must_not_throw_expr (init, NULL_TREE);
}
decl = pushdecl (decl);
start_decl_1 (decl, true);
cp_finish_decl (decl, init, /*init_const_expr_p=*/false, NULL_TREE,
LOOKUP_ONLYCONVERTING|DIRECT_BIND);
}
