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 bool ix86_target_stack_probe (void);
  24 extern bool ix86_can_use_return_insn_p (void);
  25 extern void ix86_setup_frame_addresses (void);
  26
  27 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int);
  28 extern void ix86_expand_prologue (void);
  29 extern void ix86_expand_epilogue (int);
  30 extern void ix86_expand_split_stack_prologue (void);
  31
  32 extern void ix86_output_addr_vec_elt (FILE *, int);
  33 extern void ix86_output_addr_diff_elt (FILE *, int, int);
  34
  35 extern enum calling_abi ix86_cfun_abi (void);
  36 extern enum calling_abi ix86_function_type_abi (const_tree);
  37
  38 #ifdef RTX_CODE
  39 extern int standard_80387_constant_p (rtx);
  40 extern const char *standard_80387_constant_opcode (rtx);
  41 extern rtx standard_80387_constant_rtx (int);
  42 extern int standard_sse_constant_p (rtx);
  43 extern const char *standard_sse_constant_opcode (rtx, rtx);
  44 extern bool symbolic_reference_mentioned_p (rtx);
  45 extern bool extended_reg_mentioned_p (rtx);
  46 extern bool x86_extended_QIreg_mentioned_p (rtx);
  47 extern bool x86_extended_reg_mentioned_p (rtx);
  48 extern bool x86_maybe_negate_const_int (rtx *, enum machine_mode);
  49 extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx);
  50
  51 extern int avx_vpermilp_parallel (rtx par, enum machine_mode mode);
  52 extern int avx_vperm2f128_parallel (rtx par, enum machine_mode mode);
  53
  54 extern bool ix86_expand_movmem (rtx, rtx, rtx, rtx, rtx, rtx);
  55 extern bool ix86_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx);
  56 extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx);
  57
  58 extern bool legitimate_constant_p (rtx);
  59 extern bool constant_address_p (rtx);
  60 extern bool legitimate_pic_operand_p (rtx);
  61 extern bool legitimate_pic_address_disp_p (rtx);
  62
  63 extern void print_reg (rtx, int, FILE*);
  64 extern void ix86_print_operand (FILE *, rtx, int);
  65
  66 extern void split_double_mode (enum machine_mode, rtx[], int, rtx[], rtx[]);
  67
  68 extern const char *output_set_got (rtx, rtx);
  69 extern const char *output_387_binary_op (rtx, rtx*);
  70 extern const char *output_387_reg_move (rtx, rtx*);
  71 extern const char *output_fix_trunc (rtx, rtx*, int);
  72 extern const char *output_fp_compare (rtx, rtx*, int, int);
  73 extern const char *output_adjust_stack_and_probe (rtx);
  74 extern const char *output_probe_stack_range (rtx, rtx);
  75
  76 extern void ix86_expand_clear (rtx);
  77 extern void ix86_expand_move (enum machine_mode, rtx[]);
  78 extern void ix86_expand_vector_move (enum machine_mode, rtx[]);
  79 extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]);
  80 extern void ix86_expand_push (enum machine_mode, rtx);
  81 extern rtx ix86_fixup_binary_operands (enum rtx_code,
  82                                        enum machine_mode, rtx[]);
  83 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code,
  84                                                 enum machine_mode, rtx[]);
  85 extern void ix86_expand_binary_operator (enum rtx_code,
  86                                          enum machine_mode, rtx[]);
  87 extern bool ix86_binary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
  88 extern bool ix86_lea_for_add_ok (rtx, rtx[]);
  89 extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high);
  90 extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn);
  91 extern bool ix86_agi_dependent (rtx set_insn, rtx use_insn);
  92 extern void ix86_expand_unary_operator (enum rtx_code, enum machine_mode,
  93                                         rtx[]);
  94 extern rtx ix86_build_const_vector (enum machine_mode, bool, rtx);
  95 extern rtx ix86_build_signbit_mask (enum machine_mode, bool, bool);
  96 extern void ix86_split_convert_uns_si_sse (rtx[]);
  97 extern void ix86_expand_convert_uns_didf_sse (rtx, rtx);
  98 extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx);
  99 extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx);
 100 extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx);
 101 extern void ix86_expand_convert_sign_didf_sse (rtx, rtx);
 102 extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code);
 103 extern void ix86_expand_fp_absneg_operator (enum rtx_code, enum machine_mode,
 104                                             rtx[]);
 105 extern void ix86_expand_copysign (rtx []);
 106 extern void ix86_split_copysign_const (rtx []);
 107 extern void ix86_split_copysign_var (rtx []);
 108 extern bool ix86_unary_operator_ok (enum rtx_code, enum machine_mode, rtx[]);
 109 extern bool ix86_match_ccmode (rtx, enum machine_mode);
 110 extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx);
 111 extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx);
 112 extern bool ix86_expand_int_movcc (rtx[]);
 113 extern bool ix86_expand_fp_movcc (rtx[]);
 114 extern bool ix86_expand_fp_vcond (rtx[]);
 115 extern bool ix86_expand_int_vcond (rtx[]);
 116 extern void ix86_expand_sse_unpack (rtx[], bool, bool);
 117 extern void ix86_expand_sse4_unpack (rtx[], bool, bool);
 118 extern bool ix86_expand_int_addcc (rtx[]);
 119 extern rtx ix86_expand_call (rtx, rtx, rtx, rtx, rtx, int);
 120 extern void ix86_split_call_vzeroupper (rtx, rtx);
 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 bool ix86_check_movabs (rtx, int);
 129 extern void ix86_split_idivmod (enum machine_mode, rtx[], bool);
 130
 131 extern rtx assign_386_stack_local (enum machine_mode, enum ix86_stack_slot);
 132 extern int ix86_attr_length_immediate_default (rtx, int);
 133 extern int ix86_attr_length_address_default (rtx);
 134 extern int ix86_attr_length_vex_default (rtx, int, int);
 135
 136 extern enum machine_mode ix86_fp_compare_mode (enum rtx_code);
 137
 138 extern rtx ix86_libcall_value (enum machine_mode);
 139 extern bool ix86_function_arg_regno_p (int);
 140 extern void ix86_asm_output_function_label (FILE *, const char *, tree);
 141 extern rtx ix86_force_to_memory (enum machine_mode, rtx);
 142 extern void ix86_free_from_memory (enum machine_mode);
 143 extern void ix86_call_abi_override (const_tree);
 144 extern int ix86_reg_parm_stack_space (const_tree);
 145
 146 extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx,
 147                                   rtx, rtx, rtx, rtx);
 148 extern bool ix86_hard_regno_mode_ok (int, enum machine_mode);
 149 extern bool ix86_modes_tieable_p (enum machine_mode, enum machine_mode);
 150 extern bool ix86_secondary_memory_needed (enum reg_class, enum reg_class,
 151                                           enum machine_mode, int);
 152 extern bool ix86_cannot_change_mode_class (enum machine_mode,
 153                                            enum machine_mode, enum reg_class);
 154 extern int ix86_mode_needed (int, rtx);
 155 extern void emit_i387_cw_initialization (int);
 156 extern void x86_order_regs_for_local_alloc (void);
 157 extern void x86_function_profiler (FILE *, int);
 158 extern void x86_emit_floatuns (rtx [2]);
 159 extern void ix86_emit_fp_unordered_jump (rtx);
 160
 161 extern void ix86_emit_i387_log1p (rtx, rtx);
 162 extern void ix86_emit_swdivsf (rtx, rtx, rtx, enum machine_mode);
 163 extern void ix86_emit_swsqrtsf (rtx, rtx, enum machine_mode, bool);
 164
 165 extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode);
 166
 167 extern void ix86_expand_lround (rtx, rtx);
 168 extern void ix86_expand_lfloorceil (rtx, rtx, bool);
 169 extern void ix86_expand_rint (rtx, rtx);
 170 extern void ix86_expand_floorceil (rtx, rtx, bool);
 171 extern void ix86_expand_floorceildf_32 (rtx, rtx, bool);
 172 extern void ix86_expand_round (rtx, rtx);
 173 extern void ix86_expand_rounddf_32 (rtx, rtx);
 174 extern void ix86_expand_trunc (rtx, rtx);
 175 extern void ix86_expand_truncdf_32 (rtx, rtx);
 176
 177 #ifdef TREE_CODE
 178 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int);
 179 #endif  /* TREE_CODE  */
 180
 181 #endif  /* RTX_CODE  */
 182
 183 #ifdef TREE_CODE
 184 extern int ix86_data_alignment (tree, int);
 185 extern unsigned int ix86_local_alignment (tree, enum machine_mode,
 186                                           unsigned int);
 187 extern unsigned int ix86_minimum_alignment (tree, enum machine_mode,
 188                                             unsigned int);
 189 extern int ix86_constant_alignment (tree, int);
 190 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *);
 191 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *);
 192 extern int x86_field_alignment (tree, int);
 193 extern tree ix86_valid_target_attribute_tree (tree);
 194 #endif
 195
 196 extern rtx ix86_tls_get_addr (void);
 197 extern rtx ix86_tls_module_base (void);
 198
 199 extern void ix86_expand_vector_init (bool, rtx, rtx);
 200 extern void ix86_expand_vector_set (bool, rtx, rtx, int);
 201 extern void ix86_expand_vector_extract (bool, rtx, rtx, int);
 202 extern void ix86_expand_reduc_v4sf (rtx (*)(rtx, rtx, rtx), rtx, rtx);
 203
 204 extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned);
 205
 206 /* In i386-c.c  */
 207 extern void ix86_target_macros (void);
 208 extern void ix86_register_pragmas (void);
 209
 210 /* In winnt.c  */
 211 extern void i386_pe_unique_section (tree, int);
 212 extern void i386_pe_declare_function_type (FILE *, const char *, int);
 213 extern void i386_pe_record_external_function (tree, const char *);
 214 extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int);
 215 extern void i386_pe_encode_section_info (tree, rtx, int);
 216 extern bool i386_pe_binds_local_p (const_tree);
 217 extern const char *i386_pe_strip_name_encoding_full (const char *);
 218 extern bool i386_pe_valid_dllimport_attribute_p (const_tree);
 219 extern unsigned int i386_pe_section_type_flags (tree, const char *, int);
 220 extern void i386_pe_asm_named_section (const char *, unsigned int, tree);
 221 extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree,
 222                                                     const char *,
 223                                                     HOST_WIDE_INT,
 224                                                     HOST_WIDE_INT);
 225 extern void i386_pe_file_end (void);
 226 extern void i386_pe_start_function (FILE *, const char *, tree);
 227 extern void i386_pe_end_function (FILE *, const char *, tree);
 228 extern tree i386_pe_mangle_decl_assembler_name (tree, tree);
 229 extern tree i386_pe_mangle_assembler_name (const char *);
 230
 231 extern void i386_pe_seh_init (FILE *);
 232 extern void i386_pe_seh_end_prologue (FILE *);
 233 extern void i386_pe_seh_unwind_emit (FILE *, rtx);
 234
 235 /* In winnt-cxx.c and winnt-stubs.c  */
 236 extern void i386_pe_adjust_class_at_definition (tree);
 237 extern bool i386_pe_type_dllimport_p (tree);
 238 extern bool i386_pe_type_dllexport_p (tree);
 239
 240 extern rtx maybe_get_pool_constant (rtx);
 241
 242 extern char internal_label_prefix[16];
 243 extern int internal_label_prefix_len;
 244
 245 enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS };
 246 struct ix86_address
 247 {
 248   rtx base, index, disp;
 249   HOST_WIDE_INT scale;
 250   enum ix86_address_seg seg;
 251 };
 252
 253 extern int ix86_decompose_address (rtx, struct ix86_address *);
 254 extern int memory_address_length (rtx addr);
 255 extern void x86_output_aligned_bss (FILE *, tree, const char *,
 256                                     unsigned HOST_WIDE_INT, int);
 257 extern void x86_elf_aligned_common (FILE *, const char *,
 258                                     unsigned HOST_WIDE_INT, int);
 259
 260 #ifdef RTX_CODE
 261 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *,
 262                                       enum rtx_code *, enum rtx_code *);
 263 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code);
 264 extern rtx construct_plt_address (rtx);
 265 #endif
 266 extern int asm_preferred_eh_data_format (int, int);
 267
 268 #ifdef HAVE_ATTR_cpu
 269 extern enum attr_cpu ix86_schedule;
 270 #endif
 271
 272 extern const char * ix86_output_call_insn (rtx insn, rtx call_op, int addr_op);
 273
 274 #ifdef RTX_CODE
 275 /* Target data for multipass lookahead scheduling.
 276    Currently used for Core 2/i7 tuning.  */
 277 struct ix86_first_cycle_multipass_data_
 278 {
 279   /* The length (in bytes) of ifetch block in this solution.  */
 280   int ifetch_block_len;
 281   /* Number of instructions in ifetch block in this solution.  */
 282   int ifetch_block_n_insns;
 283   /* Bitmap to remember changes to ready_try for backtracking.  */
 284   sbitmap ready_try_change;
 285   /* Size of the bitmap.  */
 286   int ready_try_change_size;
 287 };
 288 # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T      \
 289   struct ix86_first_cycle_multipass_data_
 290 #endif /* RTX_CODE */