1/* Expand builtin functions.
2   Copyright (C) 1988-2015 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
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
9version.
10
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.
15
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/>.  */
19
20#ifndef GCC_BUILTINS_H
21#define GCC_BUILTINS_H
22
23#include <mpc.h>
24
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];
33
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];
40};
41
42extern struct target_builtins default_target_builtins;
43#if SWITCHABLE_TARGET
44extern struct target_builtins *this_target_builtins;
45#else
46#define this_target_builtins (&default_target_builtins)
47#endif
48
49/* Non-zero if __builtin_constant_p should be folded right away.  */
50extern bool force_folding_builtin_constant_p;
51
52extern bool is_builtin_fn (tree);
53extern bool get_object_alignment_1 (tree, unsigned int *,
54				    unsigned HOST_WIDE_INT *);
55extern unsigned int get_object_alignment (tree);
56extern bool get_pointer_alignment_1 (tree, unsigned int *,
57				     unsigned HOST_WIDE_INT *);
58extern unsigned int get_pointer_alignment (tree);
59extern tree c_strlen (tree, int);
60extern void expand_builtin_setjmp_setup (rtx, rtx);
61extern void expand_builtin_setjmp_receiver (rtx);
62extern tree mathfn_built_in (tree, enum built_in_function fn);
63extern rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, machine_mode);
64extern rtx builtin_memset_read_str (void *, HOST_WIDE_INT, machine_mode);
65extern rtx expand_builtin_saveregs (void);
66extern tree std_build_builtin_va_list (void);
67extern tree std_fn_abi_va_list (tree);
68extern tree std_canonical_va_list_type (tree);
69extern void std_expand_builtin_va_start (tree, rtx);
70extern void expand_builtin_trap (void);
71extern rtx expand_builtin (tree, rtx, rtx, machine_mode, int);
72extern rtx expand_builtin_with_bounds (tree, rtx, rtx, machine_mode, int);
73extern enum built_in_function builtin_mathfn_code (const_tree);
74extern tree fold_builtin_expect (location_t, tree, tree, tree);
75extern tree fold_fma (location_t, tree, tree, tree, tree);
76extern bool avoid_folding_inline_builtin (tree);
77extern tree fold_call_expr (location_t, tree, bool);
78extern tree fold_builtin_call_array (location_t, tree, tree, int, tree *);
79extern tree fold_builtin_n (location_t, tree, tree *, int, bool);
80extern bool validate_gimple_arglist (const gcall *, ...);
81extern rtx default_expand_builtin (tree, rtx, rtx, machine_mode, int);
82extern bool fold_builtin_next_arg (tree, bool);
83extern tree do_mpc_arg2 (tree, tree, tree, int, int (*)(mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
84extern tree fold_call_stmt (gcall *, bool);
85extern void set_builtin_user_assembler_name (tree decl, const char *asmspec);
86extern bool is_simple_builtin (tree);
87extern bool is_inexpensive_builtin (tree);
88
89extern bool readonly_data_expr (tree exp);
90extern const char *c_getstr (tree);
91extern bool init_target_chars (void);
92extern unsigned HOST_WIDE_INT target_newline;
93extern unsigned HOST_WIDE_INT target_percent;
94extern char target_percent_s[3];
95extern char target_percent_c[3];
96extern char target_percent_s_newline[4];
97
98#endif
99