Пример #1
0
static tree
java_build_function_call_expr (tree fn, tree orig_call)
{
  int nargs = call_expr_nargs (orig_call);
  switch (nargs)
    {
      /* Although we could handle the 0-3 argument cases using the general
	 logic in the default case, splitting them out permits folding to
	 be performed without constructing a temporary CALL_EXPR.  */
    case 0:
      return build_call_expr (fn, 0);
    case 1:
      return build_call_expr (fn, 1, CALL_EXPR_ARG (orig_call, 0));
    case 2:
      return build_call_expr (fn, 2,
			      CALL_EXPR_ARG (orig_call, 0),
			      CALL_EXPR_ARG (orig_call, 1));
    case 3:
      return build_call_expr (fn, 3,
			      CALL_EXPR_ARG (orig_call, 0),
			      CALL_EXPR_ARG (orig_call, 1),
			      CALL_EXPR_ARG (orig_call, 2));
    default:
      {
	tree fntype = TREE_TYPE (fn);
	fn = build1 (ADDR_EXPR, build_pointer_type (fntype), fn);
	return fold (build_call_array (TREE_TYPE (fntype),
				       fn, nargs, CALL_EXPR_ARGP (orig_call)));
      }
    }
}
Пример #2
0
void
ubsan_maybe_instrument_member_call (tree stmt, bool is_ctor)
{
  if (call_expr_nargs (stmt) == 0)
    return;
  tree op = CALL_EXPR_ARG (stmt, 0);
  if (op == error_mark_node
      || !POINTER_TYPE_P (TREE_TYPE (op)))
    return;
  op = ubsan_maybe_instrument_reference_or_call (EXPR_LOCATION (stmt), op,
						 TREE_TYPE (op),
						 is_ctor ? UBSAN_CTOR_CALL
						 : UBSAN_MEMBER_CALL);
  if (op)
    CALL_EXPR_ARG (stmt, 0) = op;
}
Пример #3
0
static tree
get_frame_arg (tree call)
{
  tree arg, argtype;

  gcc_assert (call_expr_nargs (call) >= 1);
    
  arg = CALL_EXPR_ARG (call, 0);
  argtype = TREE_TYPE (arg);
  gcc_assert (TREE_CODE (argtype) == POINTER_TYPE);

  argtype = TREE_TYPE (argtype);
  
  /* If it is passed in as an address, then just use the value directly 
     since the function is inlined.  */
  if (TREE_CODE (arg) == ADDR_EXPR)
    return TREE_OPERAND (arg, 0);
  return arg;
}
Пример #4
0
void parseCallExprNode(CallExprNode *node)
{
    fillType(node);
    fillExprLocation(node);
    Log::dump(node);

// not recommended
//    fillExprOperands(node);

    if (CALL_EXPR_FN(node->gccNode) != NULL_TREE)
    {
        node->function = createParseNode(
            node,
            CALL_EXPR_FN(node->gccNode),
            "function");
    }
    else
    {
        node->functionName = internal_fn_name(CALL_EXPR_IFN (node->gccNode));
        Log::dump(node, "- function: %s", node->functionName.c_str());
    }

//    if (node->parseChilds <= 0)
//        return;

    const int argsCount = call_expr_nargs(node->gccNode);
    for (int f = 0; f < argsCount; f ++)
    {
        node->args.push_back(createParseNode(
            node,
            CALL_EXPR_ARG(node->gccNode, f),
            "arg"));
    }

    node->chain = createParseNode(
        node,
        CALL_EXPR_STATIC_CHAIN(node->gccNode),
        "chain");

    if (node->functionName == "LOAD_LANES")
        return;
}
Пример #5
0
void
cp_ubsan_maybe_instrument_member_call (tree stmt)
{
  if (call_expr_nargs (stmt) == 0)
    return;
  tree *opp = &CALL_EXPR_ARG (stmt, 0);
  tree op = *opp;
  if (op == error_mark_node
      || !POINTER_TYPE_P (TREE_TYPE (op)))
    return;
  while (TREE_CODE (op) == COMPOUND_EXPR)
    {
      opp = &TREE_OPERAND (op, 1);
      op = *opp;
    }
  op = cp_ubsan_maybe_instrument_vptr (EXPR_LOCATION (stmt), op,
				       TREE_TYPE (TREE_TYPE (op)),
				       true, UBSAN_MEMBER_CALL);
  if (op)
    *opp = op;
}
Пример #6
0
static tree
fix_builtin_array_notation_fn (tree an_builtin_fn, tree *new_var)
{
  tree new_var_type = NULL_TREE, func_parm, new_expr, new_yes_expr, new_no_expr;
  tree array_ind_value = NULL_TREE, new_no_ind, new_yes_ind, new_no_list;
  tree new_yes_list, new_cond_expr, new_var_init = NULL_TREE;
  tree new_exp_init = NULL_TREE;
  vec<tree, va_gc> *array_list = NULL, *array_operand = NULL;
  size_t list_size = 0, rank = 0, ii = 0;
  tree loop_init, array_op0;
  tree identity_value = NULL_TREE, call_fn = NULL_TREE, new_call_expr, body;
  location_t location = UNKNOWN_LOCATION;
  tree loop_with_init = alloc_stmt_list ();
  vec<vec<an_parts> > an_info = vNULL;
  vec<an_loop_parts> an_loop_info = vNULL;
  enum built_in_function an_type =
    is_cilkplus_reduce_builtin (CALL_EXPR_FN (an_builtin_fn));
  if (an_type == BUILT_IN_NONE)
    return NULL_TREE;

  /* Builtin call should contain at least one argument.  */
  if (call_expr_nargs (an_builtin_fn) == 0)
    {
      error_at (EXPR_LOCATION (an_builtin_fn), "Invalid builtin arguments");
      return error_mark_node;
    }

  if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE
      || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING)
    {
      call_fn = CALL_EXPR_ARG (an_builtin_fn, 2);
      if (TREE_CODE (call_fn) == ADDR_EXPR)
	call_fn = TREE_OPERAND (call_fn, 0);
      identity_value = CALL_EXPR_ARG (an_builtin_fn, 0);
      func_parm = CALL_EXPR_ARG (an_builtin_fn, 1);
    }
  else
    func_parm = CALL_EXPR_ARG (an_builtin_fn, 0);
  
  /* Fully fold any EXCESSIVE_PRECISION EXPR that can occur in the function
     parameter.  */
  func_parm = c_fully_fold (func_parm, false, NULL);
  if (func_parm == error_mark_node)
    return error_mark_node;
  
  location = EXPR_LOCATION (an_builtin_fn);
  
  if (!find_rank (location, an_builtin_fn, an_builtin_fn, true, &rank))
    return error_mark_node;
 
  if (rank == 0)
    {
      error_at (location, "Invalid builtin arguments");
      return error_mark_node;
    }
  else if (rank > 1 
	   && (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND
	       || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND))
    {
      error_at (location, "__sec_reduce_min_ind or __sec_reduce_max_ind cannot"
		" have arrays with dimension greater than 1");
      return error_mark_node;
    }
  
  extract_array_notation_exprs (func_parm, true, &array_list);
  list_size = vec_safe_length (array_list);
  switch (an_type)
    {
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUL:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN:
      new_var_type = TREE_TYPE ((*array_list)[0]);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_NONZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_NONZERO:
      new_var_type = integer_type_node;
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND:
      new_var_type = integer_type_node;
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE:
      if (call_fn && identity_value) 
	new_var_type = TREE_TYPE ((*array_list)[0]);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING:
      new_var_type = NULL_TREE;
      break;
    default:
      gcc_unreachable (); 
    }

  an_loop_info.safe_grow_cleared (rank);
  cilkplus_extract_an_triplets (array_list, list_size, rank, &an_info);
  loop_init = alloc_stmt_list ();

  for (ii = 0; ii < rank; ii++)
    {
      an_loop_info[ii].var = create_tmp_var (integer_type_node);
      an_loop_info[ii].ind_init =
	build_modify_expr (location, an_loop_info[ii].var,
			   TREE_TYPE (an_loop_info[ii].var), NOP_EXPR,
			   location,
			   build_int_cst (TREE_TYPE (an_loop_info[ii].var), 0),
			   TREE_TYPE (an_loop_info[ii].var));	
    }
  array_operand = create_array_refs (location, an_info, an_loop_info,
				     list_size, rank);
  replace_array_notations (&func_parm, true, array_list, array_operand);

  create_cmp_incr (location, &an_loop_info, rank, an_info);
  if (an_type != BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING)
    {
      *new_var = build_decl (location, VAR_DECL, NULL_TREE, new_var_type);
      gcc_assert (*new_var && *new_var != error_mark_node);
    }
  else
    *new_var = NULL_TREE;
  
  if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND
      || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND)
    array_ind_value = build_decl (location, VAR_DECL, NULL_TREE, 
				  TREE_TYPE (func_parm));
  array_op0 = (*array_operand)[0];
  if (TREE_CODE (array_op0) == INDIRECT_REF)
    array_op0 = TREE_OPERAND (array_op0, 0);
  switch (an_type)
    {
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (new_var_type), new_var_type);
      new_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), PLUS_EXPR,
	 location, func_parm, TREE_TYPE (func_parm));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUL:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_one_cst (new_var_type), new_var_type);
      new_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), MULT_EXPR,
	 location, func_parm, TREE_TYPE (func_parm));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_ZERO:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_one_cst (new_var_type), new_var_type);
      /* Initially you assume everything is zero, now if we find a case where 
	 it is NOT true, then we set the result to false. Otherwise 
	 we just keep the previous value.  */
      new_yes_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (TREE_TYPE (*new_var)),
	 TREE_TYPE (*new_var));
      new_no_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_cond_expr = build2 (NE_EXPR, TREE_TYPE (func_parm), func_parm,
			      build_zero_cst (TREE_TYPE (func_parm)));
      new_expr = build_conditional_expr
	(location, new_cond_expr, false, new_yes_expr,
	 TREE_TYPE (new_yes_expr), new_no_expr, TREE_TYPE (new_no_expr));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_NONZERO:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_one_cst (new_var_type), new_var_type);
      /* Initially you assume everything is non-zero, now if we find a case
	 where it is NOT true, then we set the result to false.  Otherwise
	 we just keep the previous value.  */
      new_yes_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (TREE_TYPE (*new_var)),
	 TREE_TYPE (*new_var));
      new_no_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_cond_expr = build2 (EQ_EXPR, TREE_TYPE (func_parm), func_parm,
			      build_zero_cst (TREE_TYPE (func_parm)));
      new_expr = build_conditional_expr
	(location, new_cond_expr, false, new_yes_expr,
	 TREE_TYPE (new_yes_expr), new_no_expr, TREE_TYPE (new_no_expr));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_ZERO:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (new_var_type), new_var_type);
      /* Initially we assume there are NO zeros in the list. When we find 
	 a non-zero, we keep the previous value.  If we find a zero, we 
	 set the value to true.  */
      new_yes_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_one_cst (new_var_type), new_var_type);
      new_no_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_cond_expr = build2 (EQ_EXPR, TREE_TYPE (func_parm), func_parm,
			      build_zero_cst (TREE_TYPE (func_parm)));
      new_expr = build_conditional_expr
	(location, new_cond_expr, false, new_yes_expr,
	 TREE_TYPE (new_yes_expr), new_no_expr, TREE_TYPE (new_no_expr));   
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_NONZERO:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (new_var_type), new_var_type);
      /* Initially we assume there are NO non-zeros in the list. When we find 
	 a zero, we keep the previous value.  If we find a non-zero, we set 
	 the value to true.  */
      new_yes_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_one_cst (new_var_type), new_var_type);
      new_no_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_cond_expr = build2 (NE_EXPR, TREE_TYPE (func_parm), func_parm,
			      build_zero_cst (TREE_TYPE (func_parm)));
      new_expr = build_conditional_expr
	(location, new_cond_expr, false, new_yes_expr,
	 TREE_TYPE (new_yes_expr), new_no_expr, TREE_TYPE (new_no_expr));   
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX:
      if (TYPE_MIN_VALUE (new_var_type))
	new_var_init = build_modify_expr
	  (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	   location, TYPE_MIN_VALUE (new_var_type), new_var_type);
      else
	new_var_init = build_modify_expr
	  (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	   location, func_parm, new_var_type);
      new_no_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_yes_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, func_parm, TREE_TYPE (*new_var));
      new_expr = build_conditional_expr
	(location,
	 build2 (LT_EXPR, TREE_TYPE (*new_var), *new_var, func_parm), false,
	 new_yes_expr, TREE_TYPE (*new_var), new_no_expr, TREE_TYPE (*new_var));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN:
      if (TYPE_MAX_VALUE (new_var_type))
	new_var_init = build_modify_expr
	  (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	   location, TYPE_MAX_VALUE (new_var_type), new_var_type);
      else
	new_var_init = build_modify_expr
	  (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	   location, func_parm, new_var_type);
      new_no_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_yes_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, func_parm, TREE_TYPE (*new_var));
      new_expr = build_conditional_expr
	(location,
	 build2 (GT_EXPR, TREE_TYPE (*new_var), *new_var, func_parm), false,
	 new_yes_expr, TREE_TYPE (*new_var), new_no_expr, TREE_TYPE (*new_var));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (new_var_type), new_var_type);
      new_exp_init = build_modify_expr
	(location, array_ind_value, TREE_TYPE (array_ind_value),
	 NOP_EXPR, location, func_parm, TREE_TYPE (func_parm));
      new_no_ind = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_no_expr = build_modify_expr
	(location, array_ind_value, TREE_TYPE (array_ind_value),
	 NOP_EXPR,
	 location, array_ind_value, TREE_TYPE (array_ind_value));
      if (list_size > 1)
	{
	  new_yes_ind = build_modify_expr
	    (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	     location, an_loop_info[0].var, TREE_TYPE (an_loop_info[0].var));
	  new_yes_expr = build_modify_expr
	    (location, array_ind_value, TREE_TYPE (array_ind_value),
	     NOP_EXPR,
	     location, func_parm, TREE_TYPE ((*array_operand)[0]));
	}
      else
	{
	  new_yes_ind = build_modify_expr
	    (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	     location, TREE_OPERAND (array_op0, 1),
	     TREE_TYPE (TREE_OPERAND (array_op0, 1)));
	  new_yes_expr = build_modify_expr
	    (location, array_ind_value, TREE_TYPE (array_ind_value),
	     NOP_EXPR,
	     location, func_parm, TREE_OPERAND (array_op0, 1));
	}
      new_yes_list = alloc_stmt_list ();
      append_to_statement_list (new_yes_ind, &new_yes_list);
      append_to_statement_list (new_yes_expr, &new_yes_list);

      new_no_list = alloc_stmt_list ();
      append_to_statement_list (new_no_ind, &new_no_list);
      append_to_statement_list (new_no_expr, &new_no_list);
 
      new_expr = build_conditional_expr
	(location,
	 build2 (LE_EXPR, TREE_TYPE (array_ind_value), array_ind_value,
		 func_parm),
	 false,
	 new_yes_list, TREE_TYPE (*new_var), new_no_list, TREE_TYPE (*new_var));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, build_zero_cst (new_var_type), new_var_type);
      new_exp_init = build_modify_expr
	(location, array_ind_value, TREE_TYPE (array_ind_value),
	 NOP_EXPR, location, func_parm, TREE_TYPE (func_parm));
      new_no_ind = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, *new_var, TREE_TYPE (*new_var));
      new_no_expr = build_modify_expr
	(location, array_ind_value, TREE_TYPE (array_ind_value),
	 NOP_EXPR,
	 location, array_ind_value, TREE_TYPE (array_ind_value));
      if (list_size > 1)
	{
	  new_yes_ind = build_modify_expr
	    (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	     location, an_loop_info[0].var, TREE_TYPE (an_loop_info[0].var));
	  new_yes_expr = build_modify_expr
	    (location, array_ind_value, TREE_TYPE (array_ind_value),
	     NOP_EXPR,
	     location, func_parm, TREE_TYPE (array_op0));
	}
      else
	{
	  new_yes_ind = build_modify_expr
	    (location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	     location, TREE_OPERAND (array_op0, 1),
	     TREE_TYPE (TREE_OPERAND (array_op0, 1)));
	  new_yes_expr = build_modify_expr
	    (location, array_ind_value, TREE_TYPE (array_ind_value),
	     NOP_EXPR,
	     location, func_parm, TREE_OPERAND (array_op0, 1));
	}
      new_yes_list = alloc_stmt_list ();
      append_to_statement_list (new_yes_ind, &new_yes_list);
      append_to_statement_list (new_yes_expr, &new_yes_list);

      new_no_list = alloc_stmt_list ();
      append_to_statement_list (new_no_ind, &new_no_list);
      append_to_statement_list (new_no_expr, &new_no_list);
 
      new_expr = build_conditional_expr
	(location,
	 build2 (GE_EXPR, TREE_TYPE (array_ind_value), array_ind_value,
		 func_parm),
	 false,
	 new_yes_list, TREE_TYPE (*new_var), new_no_list, TREE_TYPE (*new_var));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE:
      new_var_init = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, identity_value, new_var_type);
      new_call_expr = build_call_expr (call_fn, 2, *new_var, func_parm);
      new_expr = build_modify_expr
	(location, *new_var, TREE_TYPE (*new_var), NOP_EXPR,
	 location, new_call_expr, TREE_TYPE (*new_var));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING:
      new_expr = build_call_expr (call_fn, 2, identity_value, func_parm);
      break;
    default:
      gcc_unreachable ();
      break;
    }

  for (ii = 0; ii < rank; ii++)
    append_to_statement_list (an_loop_info[ii].ind_init, &loop_init);

  if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND
      || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND)
    append_to_statement_list (new_exp_init, &loop_init);
  if (an_type != BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING)
    append_to_statement_list (new_var_init, &loop_init);

  append_to_statement_list_force (loop_init, &loop_with_init);
  body = new_expr;
  for (ii = 0; ii < rank; ii++)
    {
      tree new_loop = push_stmt_list ();
      c_finish_loop (location, an_loop_info[ii].cmp, an_loop_info[ii].incr,
		     body, NULL_TREE, NULL_TREE, true);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list_force (body, &loop_with_init);

  an_info.release ();
  an_loop_info.release ();
  
  return loop_with_init;
}