1/* Expand builtin functions.
2 Copyright (C) 1988-2017 Free Software Foundation, Inc.
4This file is part of GCC.
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14for more details.
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
20#ifndef GCC_BUILTINS_H
21#define GCC_BUILTINS_H
23#include <mpc.h>
25/* Target-dependent globals. */
26struct target_builtins {
27 /* For each register that may be used for calling a function, this
28 gives a mode used to copy the register's value. VOIDmode indicates
29 the register is not used for calling a function. If the machine
30 has register windows, this gives only the outbound registers.
31 INCOMING_REGNO gives the corresponding inbound register. */
32 machine_mode x_apply_args_mode[FIRST_PSEUDO_REGISTER];
34 /* For each register that may be used for returning values, this gives
35 a mode used to copy the register's value. VOIDmode indicates the
36 register is not used for returning values. If the machine has
37 register windows, this gives only the outbound registers.
38 INCOMING_REGNO gives the corresponding inbound register. */
39 machine_mode x_apply_result_mode[FIRST_PSEUDO_REGISTER];
42extern struct target_builtins default_target_builtins;
44extern struct target_builtins *this_target_builtins;
46#define this_target_builtins (&default_target_builtins)
49/* Non-zero if __builtin_constant_p should be folded right away. */
50extern bool force_folding_builtin_constant_p;
52extern bool is_builtin_fn (tree);
53extern bool called_as_built_in (tree);
54extern bool get_object_alignment_1 (tree, unsigned int *,
55 unsigned HOST_WIDE_INT *);
56extern unsigned int get_object_alignment (tree);
57extern bool get_pointer_alignment_1 (tree, unsigned int *,
58 unsigned HOST_WIDE_INT *);
59extern unsigned int get_pointer_alignment (tree);
60extern tree c_strlen (tree, int);
61extern void expand_builtin_setjmp_setup (rtx, rtx);
62extern void expand_builtin_setjmp_receiver (rtx);
63extern void expand_builtin_update_setjmp_buf (rtx);
64extern tree mathfn_built_in (tree, enum built_in_function fn);
65extern tree mathfn_built_in (tree, combined_fn);
66extern rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, scalar_int_mode);
67extern rtx builtin_memset_read_str (void *, HOST_WIDE_INT, scalar_int_mode);
68extern rtx expand_builtin_saveregs (void);
69extern tree std_build_builtin_va_list (void);
70extern tree std_fn_abi_va_list (tree);
71extern tree std_canonical_va_list_type (tree);
72extern void std_expand_builtin_va_start (tree, rtx);
73extern void expand_builtin_trap (void);
74extern void expand_ifn_atomic_bit_test_and (gcall *);
75extern void expand_ifn_atomic_compare_exchange (gcall *);
76extern rtx expand_builtin (tree, rtx, rtx, machine_mode, int);
77extern rtx expand_builtin_with_bounds (tree, rtx, rtx, machine_mode, int);
78extern enum built_in_function builtin_mathfn_code (const_tree);
79extern tree fold_builtin_expect (location_t, tree, tree, tree);
80extern bool avoid_folding_inline_builtin (tree);
81extern tree fold_call_expr (location_t, tree, bool);
82extern tree fold_builtin_call_array (location_t, tree, tree, int, tree *);
83extern tree fold_builtin_n (location_t, tree, tree *, int, bool);
84extern bool validate_gimple_arglist (const gcall *, ...);
85extern rtx default_expand_builtin (tree, rtx, rtx, machine_mode, int);
86extern bool fold_builtin_next_arg (tree, bool);
87extern tree do_mpc_arg2 (tree, tree, tree, int, int (*)(mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
88extern tree fold_call_stmt (gcall *, bool);
89extern void set_builtin_user_assembler_name (tree decl, const char *asmspec);
90extern bool is_simple_builtin (tree);
91extern bool is_inexpensive_builtin (tree);
92extern tree compute_objsize (tree, int);
94extern bool readonly_data_expr (tree exp);
95extern bool init_target_chars (void);
96extern unsigned HOST_WIDE_INT target_newline;
97extern unsigned HOST_WIDE_INT target_percent;
98extern char target_percent_s[3];
99extern char target_percent_c[3];
100extern char target_percent_s_newline[4];
101extern bool target_char_cst_p (tree t, char *p);
103extern internal_fn associated_internal_fn (tree);
104extern internal_fn replacement_internal_fn (gcall *);