gcc/config/i386/i386-protos.h

   1 /* Definitions of target machine for GCC for IA-32.
   2    Copyright (C) 1988, 1992, 1994, 1995, 1996, 1996, 1997, 1998, 1999,
   3    2000, 2001, 2002, 2003, 2004, 2005, 2006
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22
  23 /* Functions in i386.c */
  24 extern void override_options (void);
  25 extern void optimization_options (int, int);
  26
  27 extern int ix86_can_use_return_insn_p (void);
  28 extern int ix86_frame_pointer_required (void);
  29 extern void ix86_setup_frame_addresses (void);
  30
  31 extern void ix86_file_end (void);
  32 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int);
  33 extern void ix86_expand_prologue (void);
  34 extern void ix86_expand_epilogue (int);
  35
  36 extern void ix86_output_addr_vec_elt (FILE *, int);
  37 extern void ix86_output_addr_diff_elt (FILE *, int, int);
  38
  39 #ifdef RTX_CODE
  40 extern int ix86_aligned_p (rtx);
  41
  42 extern int standard_80387_constant_p (rtx);
  43 extern const char *standard_80387_constant_opcode (rtx);
  44 extern rtx standard_80387_constant_rtx (int);
  45 extern int standard_sse_constant_p (rtx);
  46 extern int symbolic_reference_mentioned_p (rtx);
  47 extern bool extended_reg_mentioned_p (rtx);
  48 extern bool x86_extended_QIreg_mentioned_p (rtx);
  49 extern bool x86_extended_reg_mentioned_p (rtx);
  50 extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx);
  51
  52 extern int ix86_expand_movmem (rtx, rtx, rtx, rtx);
  53 extern int ix86_expand_clrmem (rtx, rtx, rtx);
  54 extern int ix86_expand_strlen (rtx, rtx, rtx, rtx);
  55
  56 extern bool legitimate_constant_p (rtx);
  57 extern bool constant_address_p (rtx);
  58 extern bool legitimate_pic_operand_p (rtx);
  59 extern int legitimate_pic_address_disp_p (rtx);
  60 extern int legitimate_address_p (enum machine_mode, rtx, int);
  61 extern rtx legitimize_address (rtx, rtx, enum machine_mode);
  62
  63 extern void print_reg (rtx, int, FILE*);
  64 extern void print_operand (FILE*, rtx, int);
  65 extern void print_operand_address (FILE*, rtx);
  66 extern bool output_addr_const_extra (FILE*, rtx);
  67
  68 extern void split_di (rtx[], int, rtx[], rtx[]);
  69 extern void split_ti (rtx[], int, rtx[], rtx[]);
  70
  71 extern const char *output_set_got (rtx, rtx);
  72 extern const char *output_387_binary_op (rtx, rtx*);
  73 extern const char *output_387_reg_move (rtx, rtx*);
  74 extern const char *output_fix_trunc (rtx, rtx*, int);
  75 extern const char *output_fp_compare (rtx, rtx*, int, int);
  76
  77 extern void ix86_expand_clear (rtx);
  78 extern void ix86_expand_move (enum machine_mode, rtx[]);
  79 extern void ix86_expand_vector_move (enum machine_mode, rtx[]);
  80 extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]);
  81 extern void ix86_expand_push (enum machine_mode, rtx);
  82 extern rtx ix86_fixup_binary_operands (enum rtx_code,
  83                                        enum machine_mode, rtx[]);
  84 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code,
  85                                                 enum machine_mode, rtx[]);
  86 extern void ix86_expand_binary_operator (enum rtx_code,
  87                                          enum machine_mode, rtx[]);
  88 extern int ix86_binary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
  89 extern void ix86_expand_unary_operator (enum rtx_code, enum machine_mode,
  90                                         rtx[]);
  91 extern rtx ix86_build_signbit_mask (enum machine_mode, bool, bool);
  92 extern void ix86_expand_fp_absneg_operator (enum rtx_code, enum machine_mode,
  93                                             rtx[]);
  94 extern void ix86_expand_copysign (rtx []);
  95 extern void ix86_split_copysign_const (rtx []);
  96 extern void ix86_split_copysign_var (rtx []);
  97 extern int ix86_unary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
  98 extern int ix86_match_ccmode (rtx, enum machine_mode);
  99 extern rtx ix86_expand_compare (enum rtx_code, rtx *, rtx *);
 100 extern int ix86_use_fcomi_compare (enum rtx_code);
 101 extern void ix86_expand_branch (enum rtx_code, rtx);
 102 extern int ix86_expand_setcc (enum rtx_code, rtx);
 103 extern int ix86_expand_int_movcc (rtx[]);
 104 extern int ix86_expand_fp_movcc (rtx[]);
 105 extern bool ix86_expand_fp_vcond (rtx[]);
 106 extern bool ix86_expand_int_vcond (rtx[]);
 107 extern int ix86_expand_int_addcc (rtx[]);
 108 extern void ix86_expand_call (rtx, rtx, rtx, rtx, rtx, int);
 109 extern void x86_initialize_trampoline (rtx, rtx, rtx);
 110 extern rtx ix86_zero_extend_to_Pmode (rtx);
 111 extern void ix86_split_long_move (rtx[]);
 112 extern void ix86_split_ashl (rtx *, rtx, enum machine_mode);
 113 extern void ix86_split_ashr (rtx *, rtx, enum machine_mode);
 114 extern void ix86_split_lshr (rtx *, rtx, enum machine_mode);
 115 extern rtx ix86_find_base_term (rtx);
 116 extern int ix86_check_movabs (rtx, int);
 117
 118 extern rtx assign_386_stack_local (enum machine_mode, enum ix86_stack_slot);
 119 extern int ix86_attr_length_immediate_default (rtx, int);
 120 extern int ix86_attr_length_address_default (rtx);
 121
 122 extern enum machine_mode ix86_fp_compare_mode (enum rtx_code);
 123
 124 extern rtx ix86_libcall_value (enum machine_mode);
 125 extern bool ix86_function_value_regno_p (int);
 126 extern bool ix86_function_arg_regno_p (int);
 127 extern int ix86_function_arg_boundary (enum machine_mode, tree);
 128 extern int ix86_return_in_memory (tree);
 129 extern void ix86_va_start (tree, rtx);
 130 extern rtx ix86_va_arg (tree, tree);
 131
 132 extern rtx ix86_force_to_memory (enum machine_mode, rtx);
 133 extern void ix86_free_from_memory (enum machine_mode);
 134 extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx,
 135                                   rtx, rtx, rtx, rtx);
 136 extern bool ix86_hard_regno_mode_ok (int, enum machine_mode);
 137 extern bool ix86_modes_tieable_p (enum machine_mode, enum machine_mode);
 138 extern int ix86_register_move_cost (enum machine_mode, enum reg_class,
 139                                     enum reg_class);
 140 extern int ix86_secondary_memory_needed (enum reg_class, enum reg_class,
 141                                          enum machine_mode, int);
 142 extern bool ix86_cannot_change_mode_class (enum machine_mode,
 143                                            enum machine_mode, enum reg_class);
 144 extern enum reg_class ix86_preferred_reload_class (rtx, enum reg_class);
 145 extern int ix86_memory_move_cost (enum machine_mode, enum reg_class, int);
 146 extern int ix86_mode_needed (int, rtx);
 147 extern void emit_i387_cw_initialization (int);
 148 extern bool ix86_fp_jump_nontrivial_p (enum rtx_code);
 149 extern void x86_order_regs_for_local_alloc (void);
 150 extern void x86_function_profiler (FILE *, int);
 151 extern void x86_emit_floatuns (rtx [2]);
 152 extern void ix86_emit_fp_unordered_jump (rtx);
 153
 154 extern void ix86_emit_i387_log1p (rtx, rtx);
 155
 156 extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode);
 157
 158 #ifdef TREE_CODE
 159 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree);
 160 extern rtx function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree, int);
 161 extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
 162                                   tree, int);
 163 extern rtx ix86_function_value (tree, tree, bool);
 164 #endif
 165
 166 #endif
 167
 168 #ifdef TREE_CODE
 169 extern int ix86_return_pops_args (tree, tree, int);
 170
 171 extern int ix86_data_alignment (tree, int);
 172 extern int ix86_local_alignment (tree, int);
 173 extern int ix86_constant_alignment (tree, int);
 174 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *);
 175 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *);
 176
 177 extern unsigned int i386_pe_section_type_flags (tree, const char *, int);
 178 extern void i386_pe_asm_named_section (const char *, unsigned int, tree);
 179 extern int x86_field_alignment (tree, int);
 180 #endif
 181
 182 extern rtx ix86_tls_get_addr (void);
 183 extern rtx ix86_tls_module_base (void);
 184
 185 extern void ix86_expand_vector_init (bool, rtx, rtx);
 186 extern void ix86_expand_vector_set (bool, rtx, rtx, int);
 187 extern void ix86_expand_vector_extract (bool, rtx, rtx, int);
 188 extern void ix86_expand_reduc_v4sf (rtx (*)(rtx, rtx, rtx), rtx, rtx);
 189
 190 /* In winnt.c  */
 191 extern int i386_pe_dllexport_name_p (const char *);
 192 extern int i386_pe_dllimport_name_p (const char *);
 193 extern void i386_pe_unique_section (tree, int);
 194 extern void i386_pe_declare_function_type (FILE *, const char *, int);
 195 extern void i386_pe_record_external_function (tree, const char *);
 196 extern void i386_pe_record_exported_symbol (const char *, int);
 197 extern void i386_pe_asm_file_end (FILE *);
 198 extern void i386_pe_encode_section_info (tree, rtx, int);
 199 extern const char *i386_pe_strip_name_encoding (const char *);
 200 extern const char *i386_pe_strip_name_encoding_full (const char *);
 201 extern void i386_pe_output_labelref (FILE *, const char *);
 202 extern bool i386_pe_valid_dllimport_attribute_p (tree);
 203
 204 /* In winnt-cxx.c and winnt-stubs.c  */
 205 extern void i386_pe_adjust_class_at_definition (tree);
 206 extern bool i386_pe_type_dllimport_p (tree);
 207 extern bool i386_pe_type_dllexport_p (tree);
 208
 209 extern rtx maybe_get_pool_constant (rtx);
 210
 211 extern char internal_label_prefix[16];
 212 extern int internal_label_prefix_len;
 213
 214 enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS };
 215 struct ix86_address
 216 {
 217   rtx base, index, disp;
 218   HOST_WIDE_INT scale;
 219   enum ix86_address_seg seg;
 220 };
 221
 222 extern int ix86_decompose_address (rtx, struct ix86_address *);
 223 extern int memory_address_length (rtx addr);
 224 extern void x86_output_aligned_bss (FILE *, tree, const char *,
 225                                     unsigned HOST_WIDE_INT, int);
 226 extern void x86_elf_aligned_common (FILE *, const char *,
 227                                     unsigned HOST_WIDE_INT, int);
 228
 229 #ifdef RTX_CODE
 230 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *,
 231                                       enum rtx_code *, enum rtx_code *);
 232 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code);
 233 #endif
 234 extern int asm_preferred_eh_data_format (int, int);