1 /* Default target hook functions.
2 Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
21 extern void default_external_libcall (rtx);
23 extern enum machine_mode default_cc_modes_compatible (enum machine_mode,
26 extern bool default_return_in_memory (tree, tree);
28 extern rtx default_expand_builtin_saveregs (void);
29 extern void default_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int);
30 extern rtx default_builtin_setjmp_frame_value (void);
31 extern bool default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *);
33 extern enum machine_mode default_eh_return_filter_mode (void);
34 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
36 extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode);
38 extern tree default_stack_protect_guard (void);
39 extern tree default_external_stack_protect_fail (void);
40 extern tree default_hidden_stack_protect_fail (void);
42 extern tree default_cxx_guard_type (void);
43 extern tree default_cxx_get_cookie_size (tree);
45 extern bool hook_pass_by_reference_must_pass_in_stack
46 (CUMULATIVE_ARGS *, enum machine_mode mode, tree, bool);
47 extern bool hook_callee_copies_named
48 (CUMULATIVE_ARGS *ca, enum machine_mode, tree, bool);
50 extern void default_unwind_emit (FILE *, rtx);
52 extern bool default_scalar_mode_supported_p (enum machine_mode);
53 extern bool default_decimal_float_supported_p (void);
55 extern const char * default_invalid_within_doloop (rtx);
57 extern bool default_narrow_bitfield (void);
59 /* These are here, and not in hooks.[ch], because not all users of
60 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
62 extern bool hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *);
63 extern bool hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS *);
65 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
66 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
67 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
68 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
69 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
70 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
71 extern const char *hook_invalid_arg_for_unprototyped_fn
73 extern bool hook_bool_rtx_commutative_p (rtx, int);
74 extern rtx default_function_value (tree, tree, bool);
75 extern rtx default_internal_arg_pointer (void);
76 extern enum reg_class default_secondary_reload (bool, rtx, enum reg_class,
78 secondary_reload_info *);
79 extern void hook_void_bitmap (bitmap);