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, 2011 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 /* In i386-common.c. */ 23 extern bool ix86_handle_option (struct gcc_options *opts, 24 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 25 const struct cl_decoded_option *decoded, 26 location_t loc); 27 28 /* Functions in i386.c */ 29 extern bool ix86_target_stack_probe (void); 30 extern bool ix86_can_use_return_insn_p (void); 31 extern void ix86_setup_frame_addresses (void); 32 33 extern HOST_WIDE_INT ix86_initial_elimination_offset (int, int); 34 extern void ix86_expand_prologue (void); 35 extern void ix86_maybe_emit_epilogue_vzeroupper (void); 36 extern void ix86_expand_epilogue (int); 37 extern void ix86_expand_split_stack_prologue (void); 38 39 extern void ix86_output_addr_vec_elt (FILE *, int); 40 extern void ix86_output_addr_diff_elt (FILE *, int, int); 41 42 extern enum calling_abi ix86_cfun_abi (void); 43 extern enum calling_abi ix86_function_type_abi (const_tree); 44 45 #ifdef RTX_CODE 46 extern int standard_80387_constant_p (rtx); 47 extern const char *standard_80387_constant_opcode (rtx); 48 extern rtx standard_80387_constant_rtx (int); 49 extern int standard_sse_constant_p (rtx); 50 extern const char *standard_sse_constant_opcode (rtx, rtx); 51 extern bool symbolic_reference_mentioned_p (rtx); 52 extern bool extended_reg_mentioned_p (rtx); 53 extern bool x86_extended_QIreg_mentioned_p (rtx); 54 extern bool x86_extended_reg_mentioned_p (rtx); 55 extern bool x86_maybe_negate_const_int (rtx *, enum machine_mode); 56 extern enum machine_mode ix86_cc_mode (enum rtx_code, rtx, rtx); 57 58 extern int avx_vpermilp_parallel (rtx par, enum machine_mode mode); 59 extern int avx_vperm2f128_parallel (rtx par, enum machine_mode mode); 60 61 extern bool ix86_expand_movmem (rtx, rtx, rtx, rtx, rtx, rtx); 62 extern bool ix86_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx); 63 extern bool ix86_expand_strlen (rtx, rtx, rtx, rtx); 64 65 extern bool constant_address_p (rtx); 66 extern bool legitimate_pic_operand_p (rtx); 67 extern bool legitimate_pic_address_disp_p (rtx); 68 extern bool ix86_legitimize_reload_address (rtx, enum machine_mode, 69 int, int, int); 70 extern void print_reg (rtx, int, FILE*); 71 extern void ix86_print_operand (FILE *, rtx, int); 72 73 extern void split_double_mode (enum machine_mode, rtx[], int, rtx[], rtx[]); 74 75 extern const char *output_set_got (rtx, rtx); 76 extern const char *output_387_binary_op (rtx, rtx*); 77 extern const char *output_387_reg_move (rtx, rtx*); 78 extern const char *output_fix_trunc (rtx, rtx*, bool); 79 extern const char *output_fp_compare (rtx, rtx*, bool, bool); 80 extern const char *output_adjust_stack_and_probe (rtx); 81 extern const char *output_probe_stack_range (rtx, rtx); 82 83 extern void ix86_expand_clear (rtx); 84 extern void ix86_expand_move (enum machine_mode, rtx[]); 85 extern void ix86_expand_vector_move (enum machine_mode, rtx[]); 86 extern void ix86_expand_vector_move_misalign (enum machine_mode, rtx[]); 87 extern void ix86_expand_push (enum machine_mode, rtx); 88 extern rtx ix86_fixup_binary_operands (enum rtx_code, 89 enum machine_mode, rtx[]); 90 extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, 91 enum machine_mode, rtx[]); 92 extern void ix86_expand_binary_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[], 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[], 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 extern int ix86_mode_needed (int, rtx); 169 extern void emit_i387_cw_initialization (int); 170 extern void x86_order_regs_for_local_alloc (void); 171 extern void x86_function_profiler (FILE *, int); 172 extern void x86_emit_floatuns (rtx [2]); 173 extern void ix86_emit_fp_unordered_jump (rtx); 174 175 extern void ix86_emit_i387_log1p (rtx, rtx); 176 extern void ix86_emit_i387_round (rtx, rtx); 177 extern void ix86_emit_swdivsf (rtx, rtx, rtx, enum machine_mode); 178 extern void ix86_emit_swsqrtsf (rtx, rtx, enum machine_mode, bool); 179 180 extern enum rtx_code ix86_reverse_condition (enum rtx_code, enum machine_mode); 181 182 extern void ix86_expand_lround (rtx, rtx); 183 extern void ix86_expand_lfloorceil (rtx, rtx, bool); 184 extern void ix86_expand_rint (rtx, rtx); 185 extern void ix86_expand_floorceil (rtx, rtx, bool); 186 extern void ix86_expand_floorceildf_32 (rtx, rtx, bool); 187 extern void ix86_expand_round_sse4 (rtx, rtx); 188 extern void ix86_expand_round (rtx, rtx); 189 extern void ix86_expand_rounddf_32 (rtx, rtx); 190 extern void ix86_expand_trunc (rtx, rtx); 191 extern void ix86_expand_truncdf_32 (rtx, rtx); 192 193 #ifdef TREE_CODE 194 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int); 195 #endif /* TREE_CODE */ 196 197 #endif /* RTX_CODE */ 198 199 #ifdef TREE_CODE 200 extern int ix86_data_alignment (tree, int); 201 extern unsigned int ix86_local_alignment (tree, enum machine_mode, 202 unsigned int); 203 extern unsigned int ix86_minimum_alignment (tree, enum machine_mode, 204 unsigned int); 205 extern int ix86_constant_alignment (tree, int); 206 extern tree ix86_handle_shared_attribute (tree *, tree, tree, int, bool *); 207 extern tree ix86_handle_selectany_attribute (tree *, tree, tree, int, bool *); 208 extern int x86_field_alignment (tree, int); 209 extern tree ix86_valid_target_attribute_tree (tree); 210 extern unsigned int ix86_get_callcvt (const_tree); 211 212 #endif 213 214 extern rtx ix86_tls_module_base (void); 215 216 extern void ix86_expand_vector_init (bool, rtx, rtx); 217 extern void ix86_expand_vector_set (bool, rtx, rtx, int); 218 extern void ix86_expand_vector_extract (bool, rtx, rtx, int); 219 extern void ix86_expand_reduc (rtx (*)(rtx, rtx, rtx), rtx, rtx); 220 221 extern void ix86_expand_vec_extract_even_odd (rtx, rtx, rtx, unsigned); 222 extern bool ix86_expand_pinsr (rtx *); 223 224 /* In i386-c.c */ 225 extern void ix86_target_macros (void); 226 extern void ix86_register_pragmas (void); 227 228 /* In winnt.c */ 229 extern void i386_pe_unique_section (tree, int); 230 extern void i386_pe_declare_function_type (FILE *, const char *, int); 231 extern void i386_pe_record_external_function (tree, const char *); 232 extern void i386_pe_maybe_record_exported_symbol (tree, const char *, int); 233 extern void i386_pe_encode_section_info (tree, rtx, int); 234 extern bool i386_pe_binds_local_p (const_tree); 235 extern const char *i386_pe_strip_name_encoding_full (const char *); 236 extern bool i386_pe_valid_dllimport_attribute_p (const_tree); 237 extern unsigned int i386_pe_section_type_flags (tree, const char *, int); 238 extern void i386_pe_asm_named_section (const char *, unsigned int, tree); 239 extern void i386_pe_asm_output_aligned_decl_common (FILE *, tree, 240 const char *, 241 HOST_WIDE_INT, 242 HOST_WIDE_INT); 243 extern void i386_pe_file_end (void); 244 extern void i386_pe_start_function (FILE *, const char *, tree); 245 extern void i386_pe_end_function (FILE *, const char *, tree); 246 extern void i386_pe_assemble_visibility (tree, int); 247 extern tree i386_pe_mangle_decl_assembler_name (tree, tree); 248 extern tree i386_pe_mangle_assembler_name (const char *); 249 250 extern void i386_pe_seh_init (FILE *); 251 extern void i386_pe_seh_end_prologue (FILE *); 252 extern void i386_pe_seh_unwind_emit (FILE *, rtx); 253 254 /* In winnt-cxx.c and winnt-stubs.c */ 255 extern void i386_pe_adjust_class_at_definition (tree); 256 extern bool i386_pe_type_dllimport_p (tree); 257 extern bool i386_pe_type_dllexport_p (tree); 258 259 extern rtx maybe_get_pool_constant (rtx); 260 261 extern char internal_label_prefix[16]; 262 extern int internal_label_prefix_len; 263 264 enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS }; 265 struct ix86_address 266 { 267 rtx base, index, disp; 268 HOST_WIDE_INT scale; 269 enum ix86_address_seg seg; 270 }; 271 272 extern int ix86_decompose_address (rtx, struct ix86_address *); 273 extern int memory_address_length (rtx, bool); 274 extern void x86_output_aligned_bss (FILE *, tree, const char *, 275 unsigned HOST_WIDE_INT, int); 276 extern void x86_elf_aligned_common (FILE *, const char *, 277 unsigned HOST_WIDE_INT, int); 278 279 #ifdef RTX_CODE 280 extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, 281 enum rtx_code *, enum rtx_code *); 282 extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); 283 extern rtx construct_plt_address (rtx); 284 #endif 285 extern int asm_preferred_eh_data_format (int, int); 286 287 #ifdef HAVE_ATTR_cpu 288 extern enum attr_cpu ix86_schedule; 289 #endif 290 291 extern const char * ix86_output_call_insn (rtx insn, rtx call_op); 292 293 #ifdef RTX_CODE 294 /* Target data for multipass lookahead scheduling. 295 Currently used for Core 2/i7 tuning. */ 296 struct ix86_first_cycle_multipass_data_ 297 { 298 /* The length (in bytes) of ifetch block in this solution. */ 299 int ifetch_block_len; 300 /* Number of instructions in ifetch block in this solution. */ 301 int ifetch_block_n_insns; 302 /* Bitmap to remember changes to ready_try for backtracking. */ 303 sbitmap ready_try_change; 304 /* Size of the bitmap. */ 305 int ready_try_change_size; 306 }; 307 # define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DATA_T \ 308 struct ix86_first_cycle_multipass_data_ 309 #endif /* RTX_CODE */ 310