1/* Default target hook functions. 2 Copyright (C) 2003, 2004, 2005 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 2, 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 COPYING. If not, write to the Free 18Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 1902110-1301, USA. */ 20 21extern void default_external_libcall (rtx); 22 23extern enum machine_mode default_cc_modes_compatible (enum machine_mode, 24 enum machine_mode); 25 26extern bool default_return_in_memory (tree, tree); 27 28extern rtx default_expand_builtin_saveregs (void); 29extern void default_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int); 30extern rtx default_builtin_setjmp_frame_value (void); 31extern bool default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *); 32 33extern enum machine_mode default_eh_return_filter_mode (void); 34extern unsigned HOST_WIDE_INT default_shift_truncation_mask 35 (enum machine_mode); 36extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode); 37extern int default_mode_rep_extended (enum machine_mode, enum machine_mode); 38 39extern tree default_stack_protect_guard (void); 40extern tree default_external_stack_protect_fail (void); 41extern tree default_hidden_stack_protect_fail (void); 42 43extern tree default_cxx_guard_type (void); 44extern tree default_cxx_get_cookie_size (tree); 45 46extern bool hook_pass_by_reference_must_pass_in_stack 47 (CUMULATIVE_ARGS *, enum machine_mode mode, tree, bool); 48extern bool hook_callee_copies_named 49 (CUMULATIVE_ARGS *ca, enum machine_mode, tree, bool); 50 51extern void default_unwind_emit (FILE *, rtx); 52 53extern bool default_scalar_mode_supported_p (enum machine_mode); 54extern bool default_decimal_float_supported_p (void); 55 56extern const char * default_invalid_within_doloop (rtx); 57 58extern bool default_narrow_bitfield (void); 59 60extern bool default_builtin_vector_alignment_reachable (tree, bool); 61 62/* These are here, and not in hooks.[ch], because not all users of 63 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 64 65extern bool hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *); 66extern bool hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS *); 67 68extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 69 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool); 70extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 71 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool); 72extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 73 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool); 74extern const char *hook_invalid_arg_for_unprototyped_fn 75 (tree, tree, tree); 76extern bool hook_bool_rtx_commutative_p (rtx, int); 77extern rtx default_function_value (tree, tree, bool); 78extern rtx default_internal_arg_pointer (void); 79extern enum reg_class default_secondary_reload (bool, rtx, enum reg_class, 80 enum machine_mode, 81 secondary_reload_info *); 82extern void hook_void_bitmap (bitmap); 83 84extern int default_reloc_rw_mask (void); 85