1 /* Definitions of target machine for GCC for IA-32. 2 Copyright (C) 1988-2013 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 /* In i386-common.c. */ 21 extern bool ix86_handle_option (struct gcc_options *opts, 22 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 23 const struct cl_decoded_option *decoded, 24 location_t loc); 25 26 /* Functions in i386.c */ 27 extern bool ix86_target_stack_probe (void); 28 extern bool ix86_can_use_return_insn_p (void); 29 extern void ix86_setup_frame_addresses (void); 30 31 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int); 32 extern void ix86_expand_prologue (void); 33 extern void ix86_maybe_emit_epilogue_vzeroupper (void); 34 extern void ix86_expand_epilogue (int); 35 extern void ix86_expand_split_stack_prologue (void); 36 37 extern void ix86_output_addr_vec_elt (FILE *, int); 38 extern void ix86_output_addr_diff_elt (FILE *, int, int); 39 40 extern enum calling_abi ix86_cfun_abi (void); 41 extern enum calling_abi ix86_function_type_abi (const_tree); 42 43 #ifdef RTX_CODE 44 extern int standard_80387_constant_p (rtx); 45 extern const char *standard_80387_constant_opcode (rtx); 46 extern rtx standard_80387_constant_rtx (int); 47 extern int standard_sse_constant_p (rtx); 48 extern const char *standard_sse_constant_opcode (rtx, rtx); 49 extern bool symbolic_reference_mentioned_p (rtx); 50 extern bool extended_reg_mentioned_p (rtx); 51 extern bool x86_extended_QIreg_mentioned_p (rtx); 52 extern bool x86_extended_reg_mentioned_p (rtx); 53 extern bool x86_maybe_negate_const_int (rtx *, enum machine_mode); 54 extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx); 55 56 extern int avx_vpermilp_parallel (rtx par, enum machine_mode mode); 57 extern int avx_vperm2f128_parallel (rtx par, enum machine_mode mode); 58 59 extern bool ix86_expand_movmem (rtx, rtx, rtx, rtx, rtx, rtx); 60 extern bool ix86_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx); 61 extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx); 62 63 extern bool constant_address_p (rtx); 64 extern bool legitimate_pic_operand_p (rtx); 65 extern bool legitimate_pic_address_disp_p (rtx); 66 extern bool ix86_legitimize_reload_address (rtx, enum machine_mode, 67 int, int, int); 68 extern void print_reg (rtx, int, FILE*); 69 extern void ix86_print_operand (FILE *, rtx, int); 70 71 extern void split_double_mode (enum machine_mode, rtx[], int, rtx[], rtx[]); 72 73 extern const char *output_set_got (rtx, rtx); 74 extern const char *output_387_binary_op (rtx, rtx*); 75 extern const char *output_387_reg_move (rtx, rtx*); 76 extern const char *output_fix_trunc (rtx, rtx*, bool); 77 extern const char *output_fp_compare (rtx, rtx*, bool, bool); 78 extern const char *output_adjust_stack_and_probe (rtx); 79 extern const char *output_probe_stack_range (rtx, rtx); 80 81 extern void ix86_expand_clear (rtx); 82 extern void ix86_expand_move (enum machine_mode, rtx[]); 83 extern void ix86_expand_vector_move (enum machine_mode, rtx[]); 84 extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]); 85 extern void ix86_expand_push (enum machine_mode, rtx); 86 extern rtx ix86_fixup_binary_operands (enum rtx_code, 87 enum machine_mode, rtx[]); 88 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, 89 enum machine_mode, rtx[]); 90 extern void ix86_expand_binary_operator (enum rtx_code, 91 enum machine_mode, rtx[]); 92 extern void ix86_expand_vector_logical_operator (enum rtx_code, 93 enum machine_mode, rtx[]); 94 extern bool ix86_binary_operator_ok (enum rtx_code, enum machine_mode, rtx[]); 95 extern bool ix86_avoid_lea_for_add (rtx, rtx[]); 96 extern bool ix86_use_lea_for_mov (rtx, rtx[]); 97 extern bool ix86_avoid_lea_for_addr (rtx, rtx[]); 98 extern void ix86_split_lea_for_addr (rtx, rtx[], enum machine_mode); 99 extern bool ix86_lea_for_add_ok (rtx, rtx[]); 100 extern bool ix86_vec_interleave_v2df_operator_ok (rtx operands[3], bool high); 101 extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn); 102 extern bool ix86_agi_dependent (rtx set_insn, rtx use_insn); 103 extern void ix86_expand_unary_operator (enum rtx_code, enum machine_mode, 104 rtx[]); 105 extern rtx ix86_build_const_vector (enum machine_mode, bool, rtx); 106 extern rtx ix86_build_signbit_mask (enum machine_mode, bool, bool); 107 extern void ix86_split_convert_uns_si_sse (rtx[]); 108 extern void ix86_expand_convert_uns_didf_sse (rtx, rtx); 109 extern void ix86_expand_convert_uns_sixf_sse (rtx, rtx); 110 extern void ix86_expand_convert_uns_sidf_sse (rtx, rtx); 111 extern void ix86_expand_convert_uns_sisf_sse (rtx, rtx); 112 extern void ix86_expand_convert_sign_didf_sse (rtx, rtx); 113 extern void ix86_expand_vector_convert_uns_vsivsf (rtx, rtx); 114 extern rtx ix86_expand_adjust_ufix_to_sfix_si (rtx, rtx *); 115 extern enum ix86_fpcmp_strategy ix86_fp_comparison_strategy (enum rtx_code); 116 extern void ix86_expand_fp_absneg_operator (enum rtx_code, enum machine_mode, 117 rtx[]); 118 extern void ix86_expand_copysign (rtx []); 119 extern void ix86_split_copysign_const (rtx []); 120 extern void ix86_split_copysign_var (rtx []); 121 extern bool ix86_unary_operator_ok (enum rtx_code, enum machine_mode, rtx[]); 122 extern bool ix86_match_ccmode (rtx, enum machine_mode); 123 extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx); 124 extern void ix86_expand_setcc (rtx, enum rtx_code, rtx, rtx); 125 extern bool ix86_expand_int_movcc (rtx[]); 126 extern bool ix86_expand_fp_movcc (rtx[]); 127 extern bool ix86_expand_fp_vcond (rtx[]); 128 extern bool ix86_expand_int_vcond (rtx[]); 129 extern void ix86_expand_vec_perm (rtx[]); 130 extern bool ix86_expand_vec_perm_const (rtx[]); 131 extern void ix86_expand_sse_unpack (rtx, rtx, bool, bool); 132 extern bool ix86_expand_int_addcc (rtx[]); 133 extern rtx ix86_expand_call (rtx, rtx, rtx, rtx, rtx, bool); 134 extern void ix86_split_call_vzeroupper (rtx, rtx); 135 extern void x86_initialize_trampoline (rtx, rtx, rtx); 136 extern rtx ix86_zero_extend_to_Pmode (rtx); 137 extern void ix86_split_long_move (rtx[]); 138 extern void ix86_split_ashl (rtx *, rtx, enum machine_mode); 139 extern void ix86_split_ashr (rtx *, rtx, enum machine_mode); 140 extern void ix86_split_lshr (rtx *, rtx, enum machine_mode); 141 extern rtx ix86_find_base_term (rtx); 142 extern bool ix86_check_movabs (rtx, int); 143 extern void ix86_split_idivmod (enum machine_mode, rtx[], bool); 144 145 extern rtx assign_386_stack_local (enum machine_mode, enum ix86_stack_slot); 146 extern int ix86_attr_length_immediate_default (rtx, bool); 147 extern int ix86_attr_length_address_default (rtx); 148 extern int ix86_attr_length_vex_default (rtx, bool, bool); 149 150 extern enum machine_mode ix86_fp_compare_mode (enum rtx_code); 151 152 extern rtx ix86_libcall_value (enum machine_mode); 153 extern bool ix86_function_arg_regno_p (int); 154 extern void ix86_asm_output_function_label (FILE *, const char *, tree); 155 extern rtx ix86_force_to_memory (enum machine_mode, rtx); 156 extern void ix86_free_from_memory (enum machine_mode); 157 extern void ix86_call_abi_override (const_tree); 158 extern int ix86_reg_parm_stack_space (const_tree); 159 160 extern void ix86_split_fp_branch (enum rtx_code code, rtx, rtx, 161 rtx, rtx, rtx, rtx); 162 extern bool ix86_hard_regno_mode_ok (int, enum machine_mode); 163 extern bool ix86_modes_tieable_p (enum machine_mode, enum machine_mode); 164 extern bool ix86_secondary_memory_needed (enum reg_class, enum reg_class, 165 enum machine_mode, int); 166 extern bool ix86_cannot_change_mode_class (enum machine_mode, 167 enum machine_mode, enum reg_class); 168 169 extern int ix86_mode_needed (int, rtx); 170 extern int ix86_mode_after (int, int, rtx); 171 extern int ix86_mode_entry (int); 172 extern int ix86_mode_exit (int); 173 174 #ifdef HARD_CONST 175 extern void ix86_emit_mode_set (int, int, HARD_REG_SET); 176 #endif 177 178 extern void x86_order_regs_for_local_alloc (void); 179 extern void x86_function_profiler (FILE *, int); 180 extern void x86_emit_floatuns (rtx [2]); 181 extern void ix86_emit_fp_unordered_jump (rtx); 182 183 extern void ix86_emit_i387_log1p (rtx, rtx); 184 extern void ix86_emit_i387_round (rtx, rtx); 185 extern void ix86_emit_swdivsf (rtx, rtx, rtx, enum machine_mode); 186 extern void ix86_emit_swsqrtsf (rtx, rtx, enum machine_mode, bool); 187 188 extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode); 189 190 extern void ix86_expand_lround (rtx, rtx); 191 extern void ix86_expand_lfloorceil (rtx, rtx, bool); 192 extern void ix86_expand_rint (rtx, rtx); 193 extern void ix86_expand_floorceil (rtx, rtx, bool); 194 extern void ix86_expand_floorceildf_32 (rtx, rtx, bool); 195 extern void ix86_expand_round_sse4 (rtx, rtx); 196 extern void ix86_expand_round (rtx, rtx); 197 extern void ix86_expand_rounddf_32 (rtx, rtx); 198 extern void ix86_expand_trunc (rtx, rtx); 199 extern void ix86_expand_truncdf_32 (rtx, rtx); 200 201 extern void ix86_expand_vecop_qihi (enum rtx_code, rtx, rtx, rtx); 202 203 #ifdef TREE_CODE 204 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int); 205 #endif /* TREE_CODE */ 206 207 #endif /* RTX_CODE */ 208 209 #ifdef TREE_CODE 210 extern int ix86_data_alignment (tree, int); 211 extern unsigned int ix86_local_alignment (tree, enum machine_mode, 212 unsigned int); 213 extern unsigned int ix86_minimum_alignment (tree, enum machine_mode, 214 unsigned int); 215 extern int ix86_constant_alignment (tree, int); 216 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *); 217 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *); 218 extern int x86_field_alignment (tree, int); 219 extern tree ix86_valid_target_attribute_tree (tree); 220 extern unsigned int ix86_get_callcvt (const_tree); 221 222 #endif 223 224 extern rtx ix86_tls_module_base (void); 225 226 extern void ix86_expand_vector_init (bool, rtx, rtx); 227 extern void ix86_expand_vector_set (bool, rtx, rtx, int); 228 extern void ix86_expand_vector_extract (bool, rtx, rtx, int); 229 extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx); 230 231 extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned); 232 extern bool ix86_expand_pinsr (rtx *); 233 extern void ix86_expand_mul_widen_evenodd (rtx, rtx, rtx, bool, bool); 234 extern void ix86_expand_mul_widen_hilo (rtx, rtx, rtx, bool, bool); 235 extern void ix86_expand_sse2_mulv4si3 (rtx, rtx, rtx); 236 extern void ix86_expand_sse2_mulvxdi3 (rtx, rtx, rtx); 237 238 /* In i386-c.c */ 239 extern void ix86_target_macros (void); 240 extern void ix86_register_pragmas (void); 241 242 /* In winnt.c */ 243 extern void i386_pe_unique_section (tree, int); 244 extern void i386_pe_declare_function_type (FILE *, const char *, int); 245 extern void i386_pe_record_external_function (tree, const char *); 246 extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int); 247 extern void i386_pe_encode_section_info (tree, rtx, int); 248 extern bool i386_pe_binds_local_p (const_tree); 249 extern const char *i386_pe_strip_name_encoding_full (const char *); 250 extern bool i386_pe_valid_dllimport_attribute_p (const_tree); 251 extern unsigned int i386_pe_section_type_flags (tree, const char *, int); 252 extern void i386_pe_asm_named_section (const char *, unsigned int, tree); 253 extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree, 254 const char *, 255 HOST_WIDE_INT, 256 HOST_WIDE_INT); 257 extern void i386_pe_file_end (void); 258 extern void i386_pe_start_function (FILE *, const char *, tree); 259 extern void i386_pe_end_function (FILE *, const char *, tree); 260 extern void i386_pe_assemble_visibility (tree, int); 261 extern tree i386_pe_mangle_decl_assembler_name (tree, tree); 262 extern tree i386_pe_mangle_assembler_name (const char *); 263 264 extern void i386_pe_seh_init (FILE *); 265 extern void i386_pe_seh_end_prologue (FILE *); 266 extern void i386_pe_seh_unwind_emit (FILE *, rtx); 267 extern void i386_pe_seh_emit_except_personality (rtx); 268 extern void i386_pe_seh_init_sections (void); 269 270 /* In winnt-cxx.c and winnt-stubs.c */ 271 extern void i386_pe_adjust_class_at_definition (tree); 272 extern bool i386_pe_type_dllimport_p (tree); 273 extern bool i386_pe_type_dllexport_p (tree); 274 275 extern int i386_pe_reloc_rw_mask (void); 276 277 extern rtx maybe_get_pool_constant (rtx); 278 279 extern char internal_label_prefix[16]; 280 extern int internal_label_prefix_len; 281 282 enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS }; 283 struct ix86_address 284 { 285 rtx base, index, disp; 286 HOST_WIDE_INT scale; 287 enum ix86_address_seg seg; 288 }; 289 290 extern int ix86_decompose_address (rtx, struct ix86_address *); 291 extern int memory_address_length (rtx, bool); 292 extern void x86_output_aligned_bss (FILE *, tree, const char *, 293 unsigned HOST_WIDE_INT, int); 294 extern void x86_elf_aligned_common (FILE *, const char *, 295 unsigned HOST_WIDE_INT, int); 296 297 #ifdef RTX_CODE 298 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, 299 enum rtx_code *, enum rtx_code *); 300 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); 301 #endif 302 extern int asm_preferred_eh_data_format (int, int); 303 304 #ifdef HAVE_ATTR_cpu 305 extern enum attr_cpu ix86_schedule; 306 #endif 307 308 extern const char * ix86_output_call_insn (rtx insn, rtx call_op); 309 310 #ifdef RTX_CODE 311 /* Target data for multipass lookahead scheduling. 312 Currently used for Core 2/i7 tuning. */ 313 struct ix86_first_cycle_multipass_data_ 314 { 315 /* The length (in bytes) of ifetch block in this solution. */ 316 int ifetch_block_len; 317 /* Number of instructions in ifetch block in this solution. */ 318 int ifetch_block_n_insns; 319 /* Bitmap to remember changes to ready_try for backtracking. */ 320 sbitmap ready_try_change; 321 /* Size of the bitmap. */ 322 int ready_try_change_size; 323 }; 324 # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \ 325 struct ix86_first_cycle_multipass_data_ 326 #endif /* RTX_CODE */ 327
