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, 2007, 2008, 2009, 2010
   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 3, 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 COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 /* Functions in i386.c */
  23 extern void override_options (bool);
  24 extern void optimization_options (int, int);
  25 extern void ix86_conditional_register_usage (void);
  26
  27 extern int ix86_can_use_return_insn_p (void);
  28 extern void ix86_setup_frame_addresses (void);
  29
  30 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int);
  31 extern void ix86_expand_prologue (void);
  32 extern void ix86_expand_epilogue (int);
  33
  34 extern void ix86_output_addr_vec_elt (FILE *, int);
  35 extern void ix86_output_addr_diff_elt (FILE *, int, int);
  36
  37 #ifdef RTX_CODE
  38 extern int standard_80387_constant_p (rtx);
  39 extern const char *standard_80387_constant_opcode (rtx);
  40 extern rtx standard_80387_constant_rtx (int);
  41 extern int standard_sse_constant_p (rtx);
  42 extern const char *standard_sse_constant_opcode (rtx, rtx);
  43 extern int symbolic_reference_mentioned_p (rtx);
  44 extern bool extended_reg_mentioned_p (rtx);
  45 extern bool x86_extended_QIreg_mentioned_p (rtx);
  46 extern bool x86_extended_reg_mentioned_p (rtx);
  47 extern bool x86_maybe_negate_const_int (rtx *, enum machine_mode);
  48 extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx);
  49
  50 extern int avx_vpermilp_parallel (rtx par, enum machine_mode mode);
  51 extern int avx_vperm2f128_parallel (rtx par, enum machine_mode mode);
  52
  53 extern int ix86_expand_movmem (rtx, rtx, rtx, rtx, rtx, rtx);
  54 extern int ix86_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx);
  55 extern int ix86_expand_strlen (rtx, rtx, rtx, rtx);
  56
  57 extern bool legitimate_constant_p (rtx);
  58 extern bool constant_address_p (rtx);
  59 extern bool legitimate_pic_operand_p (rtx);
  60 extern int legitimate_pic_address_disp_p (rtx);
  61
  62 extern void print_reg (rtx, int, FILE*);
  63 extern void ix86_print_operand (FILE *, rtx, int);
  64 extern bool output_addr_const_extra (FILE*, rtx);
  65
  66 extern void split_di (rtx[], int, rtx[], rtx[]);
  67 extern void split_ti (rtx[], int, rtx[], rtx[]);
  68
  69 extern const char *output_set_got (rtx, rtx);
  70 extern const char *output_387_binary_op (rtx, rtx*);
  71 extern const char *output_387_reg_move (rtx, rtx*);
  72 extern const char *output_fix_trunc (rtx, rtx*, int);
  73 extern const char *output_fp_compare (rtx, rtx*, int, int);
  74
  75 extern void ix86_expand_clear (rtx);
  76 extern void ix86_expand_move (enum machine_mode, rtx[]);
  77 extern void ix86_expand_vector_move (enum machine_mode, rtx[]);
  78 extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]);
  79 extern void ix86_expand_push (enum machine_mode, rtx);
  80 extern rtx ix86_fixup_binary_operands (enum rtx_code,
  81                                        enum machine_mode, rtx[]);
  82 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code,
  83                                                 enum machine_mode, rtx[]);
  84 extern void ix86_expand_binary_operator (enum rtx_code,
  85                                          enum machine_mode, rtx[]);
  86 extern int ix86_binary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
  87 extern bool ix86_lea_for_add_ok (enum rtx_code, rtx, rtx[]);
  88 extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high);
  89 extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn);
  90 extern bool ix86_agi_dependent (rtx set_insn, rtx use_insn);
  91 extern void ix86_expand_unary_operator (enum rtx_code, enum machine_mode,
  92                                         rtx[]);
  93 extern rtx ix86_build_const_vector (enum machine_mode, bool, rtx);
  94 extern rtx ix86_build_signbit_mask (enum machine_mode, bool, bool);
  95 extern void ix86_split_convert_uns_si_sse (rtx[]);
  96 extern void ix86_expand_convert_uns_didf_sse (rtx, rtx);
  97 extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx);
  98 extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx);
  99 extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx);
 100 extern void ix86_expand_convert_sign_didf_sse (rtx, rtx);
 101 extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code);
 102 extern void ix86_expand_fp_absneg_operator (enum rtx_code, enum machine_mode,
 103                                             rtx[]);
 104 extern void ix86_expand_copysign (rtx []);
 105 extern void ix86_split_copysign_const (rtx []);
 106 extern void ix86_split_copysign_var (rtx []);
 107 extern int ix86_unary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
 108 extern int ix86_match_ccmode (rtx, enum machine_mode);
 109 extern rtx ix86_expand_compare (enum rtx_code);
 110 extern int ix86_use_fcomi_compare (enum rtx_code);
 111 extern void ix86_expand_branch (enum rtx_code, rtx);
 112 extern void ix86_expand_setcc (enum rtx_code, rtx);
 113 extern int ix86_expand_int_movcc (rtx[]);
 114 extern int ix86_expand_fp_movcc (rtx[]);
 115 extern bool ix86_expand_fp_vcond (rtx[]);
 116 extern bool ix86_expand_int_vcond (rtx[]);
 117 extern void ix86_expand_sse_unpack (rtx[], bool, bool);
 118 extern void ix86_expand_sse4_unpack (rtx[], bool, bool);
 119 extern int ix86_expand_int_addcc (rtx[]);
 120 extern void ix86_expand_call (rtx, rtx, rtx, rtx, rtx, int);
 121 extern void x86_initialize_trampoline (rtx, rtx, rtx);
 122 extern rtx ix86_zero_extend_to_Pmode (rtx);
 123 extern void ix86_split_long_move (rtx[]);
 124 extern void ix86_split_ashl (rtx *, rtx, enum machine_mode);
 125 extern void ix86_split_ashr (rtx *, rtx, enum machine_mode);
 126 extern void ix86_split_lshr (rtx *, rtx, enum machine_mode);
 127 extern rtx ix86_find_base_term (rtx);
 128 extern int ix86_check_movabs (rtx, int);
 129
 130 extern rtx assign_386_stack_local (enum machine_mode, enum ix86_stack_slot);
 131 extern int ix86_attr_length_immediate_default (rtx, int);
 132 extern int ix86_attr_length_address_default (rtx);
 133 extern int ix86_attr_length_vex_default (rtx, int, int);
 134
 135 extern enum machine_mode ix86_fp_compare_mode (enum rtx_code);
 136
 137 extern rtx ix86_libcall_value (enum machine_mode);
 138 extern bool ix86_function_arg_regno_p (int);
 139 extern int ix86_function_arg_boundary (enum machine_mode, tree);
 140 extern bool ix86_sol10_return_in_memory (const_tree,const_tree);
 141 extern rtx ix86_force_to_memory (enum machine_mode, rtx);
 142 extern void ix86_free_from_memory (enum machine_mode);
 143 extern enum calling_abi ix86_cfun_abi (void);
 144 extern enum calling_abi ix86_function_type_abi (const_tree);
 145 extern void ix86_call_abi_override (const_tree);
 146 extern int ix86_reg_parm_stack_space (const_tree);
 147
 148 extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx,
 149                                   rtx, rtx, rtx, rtx);
 150 extern bool ix86_hard_regno_mode_ok (int, enum machine_mode);
 151 extern bool ix86_modes_tieable_p (enum machine_mode, enum machine_mode);
 152 extern int ix86_secondary_memory_needed (enum reg_class, enum reg_class,
 153                                          enum machine_mode, int);
 154 extern bool ix86_cannot_change_mode_class (enum machine_mode,
 155                                            enum machine_mode, enum reg_class);
 156 extern enum reg_class ix86_preferred_reload_class (rtx, enum reg_class);
 157 extern enum reg_class ix86_preferred_output_reload_class (rtx, enum reg_class);
 158 extern int ix86_mode_needed (int, rtx);
 159 extern void emit_i387_cw_initialization (int);
 160 extern void x86_order_regs_for_local_alloc (void);
 161 extern void x86_function_profiler (FILE *, int);
 162 extern void x86_emit_floatuns (rtx [2]);
 163 extern void ix86_emit_fp_unordered_jump (rtx);
 164
 165 extern void ix86_emit_i387_log1p (rtx, rtx);
 166 extern void ix86_emit_swdivsf (rtx, rtx, rtx, enum machine_mode);
 167 extern void ix86_emit_swsqrtsf (rtx, rtx, enum machine_mode, bool);
 168
 169 extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode);
 170
 171 extern void ix86_expand_lround (rtx, rtx);
 172 extern void ix86_expand_lfloorceil (rtx, rtx, bool);
 173 extern void ix86_expand_rint (rtx, rtx);
 174 extern void ix86_expand_floorceil (rtx, rtx, bool);
 175 extern void ix86_expand_floorceildf_32 (rtx, rtx, bool);
 176 extern void ix86_expand_round (rtx, rtx);
 177 extern void ix86_expand_rounddf_32 (rtx, rtx);
 178 extern void ix86_expand_trunc (rtx, rtx);
 179 extern void ix86_expand_truncdf_32 (rtx, rtx);
 180
 181 #ifdef TREE_CODE
 182 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree);
 183 #endif  /* TREE_CODE  */
 184
 185 #endif  /* RTX_CODE  */
 186
 187 #ifdef TREE_CODE
 188 extern int ix86_data_alignment (tree, int);
 189 extern unsigned int ix86_local_alignment (tree, enum machine_mode,
 190                                           unsigned int);
 191 extern unsigned int ix86_minimum_alignment (tree, enum machine_mode,
 192                                             unsigned int);
 193 extern int ix86_constant_alignment (tree, int);
 194 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *);
 195 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *);
 196 extern int x86_field_alignment (tree, int);
 197 extern tree ix86_valid_target_attribute_tree (tree);
 198 #endif
 199
 200 extern rtx ix86_tls_get_addr (void);
 201 extern rtx ix86_tls_module_base (void);
 202
 203 extern void ix86_expand_vector_init (bool, rtx, rtx);
 204 extern void ix86_expand_vector_set (bool, rtx, rtx, int);
 205 extern void ix86_expand_vector_extract (bool, rtx, rtx, int);
 206 extern void ix86_expand_reduc_v4sf (rtx (*)(rtx, rtx, rtx), rtx, rtx);
 207
 208 extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned);
 209
 210 /* In i386-c.c  */
 211 extern void ix86_target_macros (void);
 212 extern void ix86_register_pragmas (void);
 213
 214 /* In winnt.c  */
 215 extern void i386_pe_unique_section (tree, int);
 216 extern void i386_pe_declare_function_type (FILE *, const char *, int);
 217 extern void i386_pe_record_external_function (tree, const char *);
 218 extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int);
 219 extern void i386_pe_encode_section_info (tree, rtx, int);
 220 extern bool i386_pe_binds_local_p (const_tree);
 221 extern const char *i386_pe_strip_name_encoding_full (const char *);
 222 extern bool i386_pe_valid_dllimport_attribute_p (const_tree);
 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 void i386_pe_asm_output_aligned_decl_common (FILE *, tree,
 226                                                     const char *,
 227                                                     HOST_WIDE_INT,
 228                                                     HOST_WIDE_INT);
 229 extern void i386_pe_file_end (void);
 230 extern tree i386_pe_mangle_decl_assembler_name (tree, tree);
 231
 232 /* In winnt-cxx.c and winnt-stubs.c  */
 233 extern void i386_pe_adjust_class_at_definition (tree);
 234 extern bool i386_pe_type_dllimport_p (tree);
 235 extern bool i386_pe_type_dllexport_p (tree);
 236
 237 extern rtx maybe_get_pool_constant (rtx);
 238
 239 extern char internal_label_prefix[16];
 240 extern int internal_label_prefix_len;
 241
 242 enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS };
 243 struct ix86_address
 244 {
 245   rtx base, index, disp;
 246   HOST_WIDE_INT scale;
 247   enum ix86_address_seg seg;
 248 };
 249
 250 extern int ix86_decompose_address (rtx, struct ix86_address *);
 251 extern int memory_address_length (rtx addr);
 252 extern void x86_output_aligned_bss (FILE *, tree, const char *,
 253                                     unsigned HOST_WIDE_INT, int);
 254 extern void x86_elf_aligned_common (FILE *, const char *,
 255                                     unsigned HOST_WIDE_INT, int);
 256
 257 #ifdef RTX_CODE
 258 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *,
 259                                       enum rtx_code *, enum rtx_code *);
 260 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code);
 261 extern rtx construct_plt_address (rtx);
 262 #endif
 263 extern int asm_preferred_eh_data_format (int, int);
 264
 265 #ifdef HAVE_ATTR_cpu
 266 extern enum attr_cpu ix86_schedule;
 267 #endif