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 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 /* Functions in i386.c */
  23 extern void override_options (void);
  24 extern void optimization_options (int, int);
  25
  26 extern int ix86_can_use_return_insn_p (void);
  27 extern int ix86_frame_pointer_required (void);
  28 extern void ix86_setup_frame_addresses (void);
  29
  30 extern void ix86_file_end (void);
  31 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int);
  32 extern void ix86_expand_prologue (void);
  33 extern void ix86_expand_epilogue (int);
  34
  35 extern void ix86_output_addr_vec_elt (FILE *, int);
  36 extern void ix86_output_addr_diff_elt (FILE *, int, int);
  37
  38 #ifdef RTX_CODE
  39 extern int ix86_aligned_p (rtx);
  40
  41 extern int standard_80387_constant_p (rtx);
  42 extern const char *standard_80387_constant_opcode (rtx);
  43 extern rtx standard_80387_constant_rtx (int);
  44 extern int standard_sse_constant_p (rtx);
  45 extern int symbolic_reference_mentioned_p (rtx);
  46 extern bool extended_reg_mentioned_p (rtx);
  47 extern bool x86_extended_QIreg_mentioned_p (rtx);
  48 extern bool x86_extended_reg_mentioned_p (rtx);
  49
  50 extern int any_fp_register_operand (rtx, enum machine_mode);
  51 extern int register_and_not_any_fp_reg_operand (rtx, enum machine_mode);
  52
  53 extern int fp_register_operand (rtx, enum machine_mode);
  54 extern int register_and_not_fp_reg_operand (rtx, enum machine_mode);
  55
  56 extern int x86_64_general_operand (rtx, enum machine_mode);
  57 extern int x86_64_szext_general_operand (rtx, enum machine_mode);
  58 extern int x86_64_nonmemory_operand (rtx, enum machine_mode);
  59 extern int x86_64_szext_nonmemory_operand (rtx, enum machine_mode);
  60 extern int x86_64_immediate_operand (rtx, enum machine_mode);
  61 extern int x86_64_zext_immediate_operand (rtx, enum machine_mode);
  62 extern int symbolic_operand (rtx, enum machine_mode);
  63 extern int tls_symbolic_operand (rtx, enum machine_mode);
  64 extern int global_dynamic_symbolic_operand (rtx, enum machine_mode);
  65 extern int local_dynamic_symbolic_operand (rtx, enum machine_mode);
  66 extern int initial_exec_symbolic_operand (rtx, enum machine_mode);
  67 extern int local_exec_symbolic_operand (rtx, enum machine_mode);
  68 extern int pic_symbolic_operand (rtx, enum machine_mode);
  69 extern int call_insn_operand (rtx, enum machine_mode);
  70 extern int sibcall_insn_operand (rtx, enum machine_mode);
  71 extern int constant_call_address_operand (rtx, enum machine_mode);
  72 extern int const0_operand (rtx, enum machine_mode);
  73 extern int const1_operand (rtx, enum machine_mode);
  74 extern int const248_operand (rtx, enum machine_mode);
  75 extern int incdec_operand (rtx, enum machine_mode);
  76 extern int reg_no_sp_operand (rtx, enum machine_mode);
  77 extern int mmx_reg_operand (rtx, enum machine_mode);
  78 extern int general_no_elim_operand (rtx, enum machine_mode);
  79 extern int nonmemory_no_elim_operand (rtx, enum machine_mode);
  80 extern int q_regs_operand (rtx, enum machine_mode);
  81 extern int non_q_regs_operand (rtx, enum machine_mode);
  82 extern int sse_comparison_operator (rtx, enum machine_mode);
  83 extern int fcmov_comparison_operator (rtx, enum machine_mode);
  84 extern int cmp_fp_expander_operand (rtx, enum machine_mode);
  85 extern int ix86_comparison_operator (rtx, enum machine_mode);
  86 extern int ext_register_operand (rtx, enum machine_mode);
  87 extern int binary_fp_operator (rtx, enum machine_mode);
  88 extern int mult_operator (rtx, enum machine_mode);
  89 extern int div_operator (rtx, enum machine_mode);
  90 extern int arith_or_logical_operator (rtx, enum machine_mode);
  91 extern int promotable_binary_operator (rtx, enum machine_mode);
  92 extern int memory_displacement_operand (rtx, enum machine_mode);
  93 extern int cmpsi_operand (rtx, enum machine_mode);
  94 extern int long_memory_operand (rtx, enum machine_mode);
  95 extern int aligned_operand (rtx, enum machine_mode);
  96 extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx);
  97
  98 extern int ix86_expand_movmem (rtx, rtx, rtx, rtx);
  99 extern int ix86_expand_clrmem (rtx, rtx, rtx);
 100 extern int ix86_expand_strlen (rtx, rtx, rtx, rtx);
 101
 102 extern bool legitimate_constant_p (rtx);
 103 extern bool constant_address_p (rtx);
 104 extern bool legitimate_pic_operand_p (rtx);
 105 extern int legitimate_pic_address_disp_p (rtx);
 106 extern int legitimate_address_p (enum machine_mode, rtx, int);
 107 extern rtx legitimize_address (rtx, rtx, enum machine_mode);
 108
 109 extern void print_reg (rtx, int, FILE*);
 110 extern void print_operand (FILE*, rtx, int);
 111 extern void print_operand_address (FILE*, rtx);
 112 extern bool output_addr_const_extra (FILE*, rtx);
 113
 114 extern void split_di (rtx[], int, rtx[], rtx[]);
 115 extern void split_ti (rtx[], int, rtx[], rtx[]);
 116
 117 extern const char *output_set_got (rtx);
 118 extern const char *output_387_binary_op (rtx, rtx*);
 119 extern const char *output_387_reg_move (rtx, rtx*);
 120 extern const char *output_fix_trunc (rtx, rtx*, int);
 121 extern const char *output_fp_compare (rtx, rtx*, int, int);
 122
 123 extern void ix86_expand_clear (rtx);
 124 extern void ix86_expand_move (enum machine_mode, rtx[]);
 125 extern void ix86_expand_vector_move (enum machine_mode, rtx[]);
 126 extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]);
 127 extern void ix86_expand_push (enum machine_mode, rtx);
 128 extern rtx ix86_fixup_binary_operands (enum rtx_code,
 129                                        enum machine_mode, rtx[]);
 130 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code,
 131                                                 enum machine_mode, rtx[]);
 132 extern void ix86_expand_binary_operator (enum rtx_code,
 133                                          enum machine_mode, rtx[]);
 134 extern int ix86_binary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
 135 extern void ix86_expand_unary_operator (enum rtx_code, enum machine_mode,
 136                                         rtx[]);
 137 extern rtx ix86_build_signbit_mask (enum machine_mode, bool, bool);
 138 extern void ix86_expand_fp_absneg_operator (enum rtx_code, enum machine_mode,
 139                                             rtx[]);
 140 extern void ix86_expand_copysign (rtx []);
 141 extern void ix86_split_copysign_const (rtx []);
 142 extern void ix86_split_copysign_var (rtx []);
 143 extern int ix86_unary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
 144 extern int ix86_match_ccmode (rtx, enum machine_mode);
 145 extern rtx ix86_expand_compare (enum rtx_code, rtx *, rtx *);
 146 extern int ix86_use_fcomi_compare (enum rtx_code);
 147 extern void ix86_expand_branch (enum rtx_code, rtx);
 148 extern int ix86_expand_setcc (enum rtx_code, rtx);
 149 extern int ix86_expand_int_movcc (rtx[]);
 150 extern int ix86_expand_fp_movcc (rtx[]);
 151 extern bool ix86_expand_fp_vcond (rtx[]);
 152 extern bool ix86_expand_int_vcond (rtx[], bool);
 153 extern int ix86_expand_int_addcc (rtx[]);
 154 extern void ix86_expand_call (rtx, rtx, rtx, rtx, rtx, int);
 155 extern void x86_initialize_trampoline (rtx, rtx, rtx);
 156 extern rtx ix86_zero_extend_to_Pmode (rtx);
 157 extern void ix86_split_long_move (rtx[]);
 158 extern void ix86_split_ashldi (rtx *, rtx);
 159 extern void ix86_split_ashrdi (rtx *, rtx);
 160 extern void ix86_split_lshrdi (rtx *, rtx);
 161 extern rtx ix86_find_base_term (rtx);
 162 extern int ix86_check_movabs (rtx, int);
 163
 164 extern rtx assign_386_stack_local (enum machine_mode, enum ix86_stack_slot);
 165 extern int ix86_attr_length_immediate_default (rtx, int);
 166 extern int ix86_attr_length_address_default (rtx);
 167
 168 extern enum machine_mode ix86_fp_compare_mode (enum rtx_code);
 169
 170 extern rtx ix86_libcall_value (enum machine_mode);
 171 extern bool ix86_function_value_regno_p (int);
 172 extern bool ix86_function_arg_regno_p (int);
 173 extern int ix86_function_arg_boundary (enum machine_mode, tree);
 174 extern int ix86_return_in_memory (tree);
 175 extern void ix86_va_start (tree, rtx);
 176 extern rtx ix86_va_arg (tree, tree);
 177
 178 extern rtx ix86_force_to_memory (enum machine_mode, rtx);
 179 extern void ix86_free_from_memory (enum machine_mode);
 180 extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx,
 181                                   rtx, rtx, rtx, rtx);
 182 extern bool ix86_hard_regno_mode_ok (int, enum machine_mode);
 183 extern bool ix86_modes_tieable_p (enum machine_mode, enum machine_mode);
 184 extern int ix86_register_move_cost (enum machine_mode, enum reg_class,
 185                                     enum reg_class);
 186 extern int ix86_secondary_memory_needed (enum reg_class, enum reg_class,
 187                                          enum machine_mode, int);
 188 extern bool ix86_cannot_change_mode_class (enum machine_mode,
 189                                            enum machine_mode, enum reg_class);
 190 extern enum reg_class ix86_preferred_reload_class (rtx, enum reg_class);
 191 extern int ix86_memory_move_cost (enum machine_mode, enum reg_class, int);
 192 extern int ix86_mode_needed (int, rtx);
 193 extern void emit_i387_cw_initialization (int);
 194 extern bool ix86_fp_jump_nontrivial_p (enum rtx_code);
 195 extern void x86_order_regs_for_local_alloc (void);
 196 extern void x86_function_profiler (FILE *, int);
 197 extern void x86_emit_floatuns (rtx [2]);
 198 extern void ix86_emit_fp_unordered_jump (rtx);
 199
 200 extern void ix86_emit_i387_log1p (rtx, rtx);
 201
 202 extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode);
 203
 204 #ifdef TREE_CODE
 205 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree);
 206 extern rtx function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree, int);
 207 extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
 208                                   tree, int);
 209 extern rtx ix86_function_value (tree, tree);
 210 #endif
 211
 212 #endif
 213
 214 #ifdef TREE_CODE
 215 extern int ix86_return_pops_args (tree, tree, int);
 216
 217 extern int ix86_data_alignment (tree, int);
 218 extern int ix86_local_alignment (tree, int);
 219 extern int ix86_constant_alignment (tree, int);
 220 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *);
 221 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *);
 222
 223 extern unsigned int i386_pe_section_type_flags (tree, const char *, int);
 224 extern void i386_pe_asm_named_section (const char *, unsigned int, tree);
 225 extern int x86_field_alignment (tree, int);
 226 #endif
 227
 228 extern rtx ix86_tls_get_addr (void);
 229
 230 extern void ix86_expand_vector_init (bool, rtx, rtx);
 231 extern void ix86_expand_vector_set (bool, rtx, rtx, int);
 232 extern void ix86_expand_vector_extract (bool, rtx, rtx, int);
 233 extern void ix86_expand_reduc_v4sf (rtx (*)(rtx, rtx, rtx), rtx, rtx);
 234
 235 /* In winnt.c  */
 236 extern int i386_pe_dllexport_name_p (const char *);
 237 extern int i386_pe_dllimport_name_p (const char *);
 238 extern void i386_pe_unique_section (tree, int);
 239 extern void i386_pe_declare_function_type (FILE *, const char *, int);
 240 extern void i386_pe_record_external_function (tree, const char *);
 241 extern void i386_pe_record_exported_symbol (const char *, int);
 242 extern void i386_pe_asm_file_end (FILE *);
 243 extern void i386_pe_encode_section_info (tree, rtx, int);
 244 extern const char *i386_pe_strip_name_encoding (const char *);
 245 extern const char *i386_pe_strip_name_encoding_full (const char *);
 246 extern void i386_pe_output_labelref (FILE *, const char *);
 247 extern rtx maybe_get_pool_constant (rtx);
 248
 249 extern char internal_label_prefix[16];
 250 extern int internal_label_prefix_len;
 251
 252 enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS };
 253 struct ix86_address
 254 {
 255   rtx base, index, disp;
 256   HOST_WIDE_INT scale;
 257   enum ix86_address_seg seg;
 258 };
 259
 260 extern int ix86_decompose_address (rtx, struct ix86_address *);
 261 extern int memory_address_length (rtx addr);
 262
 263 #ifdef RTX_CODE
 264 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *,
 265                                       enum rtx_code *, enum rtx_code *);
 266 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code);
 267 #endif