GCC Middle and Back End API Reference
function_arg_info Class Reference

#include <calls.h>

Public Member Functions

 function_arg_info ()
 function_arg_info (machine_mode mode, bool named)
 function_arg_info (tree type, bool named)
 function_arg_info (tree type, machine_mode mode, bool named)
bool aggregate_type_p () const
poly_int64 type_size_in_bytes () const
poly_int64 promoted_size_in_bytes () const
bool end_marker_p () const

Static Public Member Functions

static function_arg_info end_marker ()

Data Fields

tree type
machine_mode mode
unsigned int named: 1
unsigned int pass_by_reference: 1

Detailed Description

Declarations and data types for RTL call insn generation.
   Copyright (C) 2013-2025 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 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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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 COPYING3.  If not see
<http://www.gnu.org/licenses/>.   
Describes a function argument.

Each argument conceptually has a gimple-level type.  Usually this type
is available directly as a tree via the TYPE field, but when calling
libgcc support functions it might instead be inferred from a mode,
in which case the type isn't available directly.

This gimple-level type might go through promotion before being passed to
the target function.  Depending on the context, the MODE field is either
the mode of the gimple-level type (whether explicitly given or not)
or the mode after promotion has been performed.

Constructor & Destructor Documentation

◆ function_arg_info() [1/4]

function_arg_info::function_arg_info ( )
inline

References false, mode, named, NULL_TREE, pass_by_reference, and type.

Referenced by end_marker().

◆ function_arg_info() [2/4]

function_arg_info::function_arg_info ( machine_mode mode,
bool named )
inline

References false, mode, named, NULL_TREE, pass_by_reference, and type.

◆ function_arg_info() [3/4]

function_arg_info::function_arg_info ( tree type,
bool named )
inline

References false, mode, named, pass_by_reference, type, and TYPE_MODE.

◆ function_arg_info() [4/4]

function_arg_info::function_arg_info ( tree type,
machine_mode mode,
bool named )
inline

References false, mode, named, pass_by_reference, and type.

Member Function Documentation

◆ aggregate_type_p()

bool function_arg_info::aggregate_type_p ( ) const
inline

References AGGREGATE_TYPE_P, and type.

◆ end_marker()

function_arg_info function_arg_info::end_marker ( )
inlinestatic

References function_arg_info(), and void_type_node.

Referenced by emit_library_call_value_1(), and expand_call().

◆ end_marker_p()

bool function_arg_info::end_marker_p ( ) const
inline

References mode.

◆ promoted_size_in_bytes()

poly_int64 function_arg_info::promoted_size_in_bytes ( ) const
inline

References GET_MODE_SIZE(), int_size_in_bytes(), mode, and type.

◆ type_size_in_bytes()

poly_int64 function_arg_info::type_size_in_bytes ( ) const
inline

References GET_MODE_SIZE(), int_size_in_bytes(), mode, and type.

Field Documentation

◆ mode

machine_mode function_arg_info::mode

Referenced by apply_pass_by_reference_rules(), emit_library_call_value_1(), end_marker_p(), function_arg_info(), function_arg_info(), function_arg_info(), function_arg_info(), initialize_argument_information(), must_pass_in_stack_var_size_or_pad(), pass_by_reference(), prepare_call_arguments(), promoted_size_in_bytes(), and type_size_in_bytes().

◆ named

unsigned int function_arg_info::named

Referenced by assign_parm_find_entry_rtl(), assign_parms_setup_varargs(), function_arg_info(), function_arg_info(), function_arg_info(), function_arg_info(), and hook_callee_copies_named().

◆ pass_by_reference

unsigned int function_arg_info::pass_by_reference

Referenced by apply_pass_by_reference_rules(), emit_library_call_value_1(), function_arg_info(), function_arg_info(), function_arg_info(), function_arg_info(), and initialize_argument_information().

◆ type

tree function_arg_info::type

Referenced by aggregate_type_p(), apply_pass_by_reference_rules(), function_arg_info(), function_arg_info(), function_arg_info(), function_arg_info(), initialize_argument_information(), must_pass_in_stack_var_size(), must_pass_in_stack_var_size_or_pad(), pass_by_reference(), prepare_call_arguments(), promoted_size_in_bytes(), reference_callee_copied(), and type_size_in_bytes().

The documentation for this class was generated from the following file: