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1 /* Default target hook functions.
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2 Copyright (C) 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 extern void default_external_libcall (rtx);
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21
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22 extern int default_unspec_may_trap_p (const_rtx, unsigned);
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23
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24 extern enum machine_mode default_cc_modes_compatible (enum machine_mode,
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25 enum machine_mode);
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26
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27 extern bool default_return_in_memory (const_tree, const_tree);
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28
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29 extern rtx default_expand_builtin_saveregs (void);
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30 extern void default_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int);
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31 extern rtx default_builtin_setjmp_frame_value (void);
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32 extern bool default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *);
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33
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34 extern enum machine_mode default_eh_return_filter_mode (void);
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35 extern enum machine_mode default_libgcc_cmp_return_mode (void);
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36 extern enum machine_mode default_libgcc_shift_count_mode (void);
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37 extern enum machine_mode default_unwind_word_mode (void);
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38 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
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39 (enum machine_mode);
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40 extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode);
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41 extern int default_mode_rep_extended (enum machine_mode, enum machine_mode);
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42
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43 extern tree default_stack_protect_guard (void);
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44 extern tree default_external_stack_protect_fail (void);
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45 extern tree default_hidden_stack_protect_fail (void);
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46
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47 extern enum machine_mode default_mode_for_suffix (char);
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48
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49 extern tree default_cxx_guard_type (void);
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50 extern tree default_cxx_get_cookie_size (tree);
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51
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52 extern bool hook_pass_by_reference_must_pass_in_stack
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53 (CUMULATIVE_ARGS *, enum machine_mode mode, const_tree, bool);
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54 extern bool hook_callee_copies_named
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55 (CUMULATIVE_ARGS *ca, enum machine_mode, const_tree, bool);
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56
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57 extern void default_unwind_emit (FILE *, rtx);
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58
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59 extern bool default_scalar_mode_supported_p (enum machine_mode);
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60 extern bool default_decimal_float_supported_p (void);
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61 extern bool default_fixed_point_supported_p (void);
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62
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63 extern const char * default_invalid_within_doloop (const_rtx);
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64
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65 extern tree default_builtin_vectorized_function
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66 (enum built_in_function, tree, tree);
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67
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68 extern tree default_builtin_vectorized_conversion (enum tree_code, tree);
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69
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70 extern tree default_builtin_reciprocal (enum built_in_function, bool, bool);
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71
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72 extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
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73
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74 /* These are here, and not in hooks.[ch], because not all users of
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75 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
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76
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77 extern bool hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *);
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78 extern bool hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS *);
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79
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80 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
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81 (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
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82 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
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83 (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
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84 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
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85 (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
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86 extern const char *hook_invalid_arg_for_unprototyped_fn
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87 (const_tree, const_tree, const_tree);
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88 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
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89 extern rtx default_function_value (const_tree, const_tree, bool);
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90 extern rtx default_internal_arg_pointer (void);
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91 #ifdef IRA_COVER_CLASSES
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92 extern const enum reg_class *default_ira_cover_classes (void);
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93 #endif
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94 extern enum reg_class default_secondary_reload (bool, rtx, enum reg_class,
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95 enum machine_mode,
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96 secondary_reload_info *);
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97 extern void hook_void_bitmap (bitmap);
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98 extern bool default_handle_c_option (size_t, const char *, int);
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99 extern int default_reloc_rw_mask (void);
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100 extern tree default_mangle_decl_assembler_name (tree, tree);
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101 extern tree default_emutls_var_fields (tree, tree *);
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102 extern tree default_emutls_var_init (tree, tree, tree);
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103 extern bool default_hard_regno_scratch_ok (unsigned int);
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104 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
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105 extern bool default_target_option_pragma_parse (tree, tree);
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106 extern bool default_target_option_can_inline_p (tree, tree);
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