gcc/config/arm/arm-protos.h

   1 /* Prototypes for exported functions defined in arm.c and pe.c
   2    Copyright (C) 1999-2017 Free Software Foundation, Inc.
   3    Contributed by Richard Earnshaw (rearnsha@arm.com)
   4    Minor hacks by Nick Clifton (nickc@cygnus.com)
   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 #ifndef GCC_ARM_PROTOS_H
  23 #define GCC_ARM_PROTOS_H
  24
  25 #include "sbitmap.h"
  26
  27 extern enum unwind_info_type arm_except_unwind_info (struct gcc_options *);
  28 extern int use_return_insn (int, rtx);
  29 extern bool use_simple_return_p (void);
  30 extern enum reg_class arm_regno_class (int);
  31 extern void arm_load_pic_register (unsigned long);
  32 extern int arm_volatile_func (void);
  33 extern void arm_expand_prologue (void);
  34 extern void arm_expand_epilogue (bool);
  35 extern void arm_declare_function_name (FILE *, const char *, tree);
  36 extern void arm_asm_declare_function_name (FILE *, const char *, tree);
  37 extern void thumb2_expand_return (bool);
  38 extern const char *arm_strip_name_encoding (const char *);
  39 extern void arm_asm_output_labelref (FILE *, const char *);
  40 extern void thumb2_asm_output_opcode (FILE *);
  41 extern unsigned long arm_current_func_type (void);
  42 extern HOST_WIDE_INT arm_compute_initial_elimination_offset (unsigned int,
  43                                                              unsigned int);
  44 extern HOST_WIDE_INT thumb_compute_initial_elimination_offset (unsigned int,
  45                                                                unsigned int);
  46 extern unsigned int arm_dbx_register_number (unsigned int);
  47 extern void arm_output_fn_unwind (FILE *, bool);
  48
  49 extern rtx arm_expand_builtin (tree exp, rtx target, rtx subtarget
  50                                ATTRIBUTE_UNUSED, enum machine_mode mode
  51                                ATTRIBUTE_UNUSED, int ignore ATTRIBUTE_UNUSED);
  52 extern tree arm_builtin_decl (unsigned code, bool initialize_p
  53                               ATTRIBUTE_UNUSED);
  54 extern void arm_init_builtins (void);
  55 extern void arm_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update);
  56 extern rtx arm_simd_vect_par_cnst_half (machine_mode mode, bool high);
  57 extern bool arm_simd_check_vect_par_cnst_half_p (rtx op, machine_mode mode,
  58                                                  bool high);
  59 #ifdef RTX_CODE
  60 extern void arm_gen_unlikely_cbranch (enum rtx_code, machine_mode cc_mode,
  61                                       rtx label_ref);
  62 extern bool arm_vector_mode_supported_p (machine_mode);
  63 extern bool arm_small_register_classes_for_mode_p (machine_mode);
  64 extern int arm_hard_regno_mode_ok (unsigned int, machine_mode);
  65 extern bool arm_modes_tieable_p (machine_mode, machine_mode);
  66 extern int const_ok_for_arm (HOST_WIDE_INT);
  67 extern int const_ok_for_op (HOST_WIDE_INT, enum rtx_code);
  68 extern int const_ok_for_dimode_op (HOST_WIDE_INT, enum rtx_code);
  69 extern int arm_split_constant (RTX_CODE, machine_mode, rtx,
  70                                HOST_WIDE_INT, rtx, rtx, int);
  71 extern int legitimate_pic_operand_p (rtx);
  72 extern rtx legitimize_pic_address (rtx, machine_mode, rtx);
  73 extern rtx legitimize_tls_address (rtx, rtx);
  74 extern bool arm_legitimate_address_p (machine_mode, rtx, bool);
  75 extern int arm_legitimate_address_outer_p (machine_mode, rtx, RTX_CODE, int);
  76 extern int thumb_legitimate_offset_p (machine_mode, HOST_WIDE_INT);
  77 extern int thumb1_legitimate_address_p (machine_mode, rtx, int);
  78 extern bool ldm_stm_operation_p (rtx, bool, machine_mode mode,
  79                                  bool, bool);
  80 extern int arm_const_double_rtx (rtx);
  81 extern int vfp3_const_double_rtx (rtx);
  82 extern int neon_immediate_valid_for_move (rtx, machine_mode, rtx *, int *);
  83 extern int neon_immediate_valid_for_logic (rtx, machine_mode, int, rtx *,
  84                                            int *);
  85 extern int neon_immediate_valid_for_shift (rtx, machine_mode, rtx *,
  86                                            int *, bool);
  87 extern char *neon_output_logic_immediate (const char *, rtx *,
  88                                           machine_mode, int, int);
  89 extern char *neon_output_shift_immediate (const char *, char, rtx *,
  90                                           machine_mode, int, bool);
  91 extern void neon_pairwise_reduce (rtx, rtx, machine_mode,
  92                                   rtx (*) (rtx, rtx, rtx));
  93 extern rtx neon_make_constant (rtx);
  94 extern tree arm_builtin_vectorized_function (unsigned int, tree, tree);
  95 extern void neon_expand_vector_init (rtx, rtx);
  96 extern void neon_lane_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT, const_tree);
  97 extern void arm_const_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
  98 extern HOST_WIDE_INT neon_element_bits (machine_mode);
  99 extern void neon_emit_pair_result_insn (machine_mode,
 100                                         rtx (*) (rtx, rtx, rtx, rtx),
 101                                         rtx, rtx, rtx);
 102 extern void neon_disambiguate_copy (rtx *, rtx *, rtx *, unsigned int);
 103 extern void neon_split_vcombine (rtx op[3]);
 104 extern enum reg_class coproc_secondary_reload_class (machine_mode, rtx,
 105                                                      bool);
 106 extern bool arm_tls_referenced_p (rtx);
 107
 108 extern int arm_coproc_mem_operand (rtx, bool);
 109 extern int neon_vector_mem_operand (rtx, int, bool);
 110 extern int neon_struct_mem_operand (rtx);
 111
 112 extern int tls_mentioned_p (rtx);
 113 extern int symbol_mentioned_p (rtx);
 114 extern int label_mentioned_p (rtx);
 115 extern RTX_CODE minmax_code (rtx);
 116 extern bool arm_sat_operator_match (rtx, rtx, int *, bool *);
 117 extern int adjacent_mem_locations (rtx, rtx);
 118 extern bool gen_ldm_seq (rtx *, int, bool);
 119 extern bool gen_stm_seq (rtx *, int);
 120 extern bool gen_const_stm_seq (rtx *, int);
 121 extern rtx arm_gen_load_multiple (int *, int, rtx, int, rtx, HOST_WIDE_INT *);
 122 extern rtx arm_gen_store_multiple (int *, int, rtx, int, rtx, HOST_WIDE_INT *);
 123 extern bool offset_ok_for_ldrd_strd (HOST_WIDE_INT);
 124 extern bool operands_ok_ldrd_strd (rtx, rtx, rtx, HOST_WIDE_INT, bool, bool);
 125 extern bool gen_operands_ldrd_strd (rtx *, bool, bool, bool);
 126 extern int arm_gen_movmemqi (rtx *);
 127 extern bool gen_movmem_ldrd_strd (rtx *);
 128 extern machine_mode arm_select_cc_mode (RTX_CODE, rtx, rtx);
 129 extern machine_mode arm_select_dominance_cc_mode (rtx, rtx,
 130                                                        HOST_WIDE_INT);
 131 extern rtx arm_gen_compare_reg (RTX_CODE, rtx, rtx, rtx);
 132 extern rtx arm_gen_return_addr_mask (void);
 133 extern void arm_reload_in_hi (rtx *);
 134 extern void arm_reload_out_hi (rtx *);
 135 extern int arm_max_const_double_inline_cost (void);
 136 extern int arm_const_double_inline_cost (rtx);
 137 extern bool arm_const_double_by_parts (rtx);
 138 extern bool arm_const_double_by_immediates (rtx);
 139 extern void arm_emit_call_insn (rtx, rtx, bool);
 140 bool detect_cmse_nonsecure_call (tree);
 141 extern const char *output_call (rtx *);
 142 void arm_emit_movpair (rtx, rtx);
 143 extern const char *output_mov_long_double_arm_from_arm (rtx *);
 144 extern const char *output_move_double (rtx *, bool, int *count);
 145 extern const char *output_move_quad (rtx *);
 146 extern int arm_count_output_move_double_insns (rtx *);
 147 extern const char *output_move_vfp (rtx *operands);
 148 extern const char *output_move_neon (rtx *operands);
 149 extern int arm_attr_length_move_neon (rtx_insn *);
 150 extern int arm_address_offset_is_imm (rtx_insn *);
 151 extern const char *output_add_immediate (rtx *);
 152 extern const char *arithmetic_instr (rtx, int);
 153 extern void output_ascii_pseudo_op (FILE *, const unsigned char *, int);
 154 extern const char *output_return_instruction (rtx, bool, bool, bool);
 155 extern const char *output_probe_stack_range (rtx, rtx);
 156 extern void arm_poke_function_name (FILE *, const char *);
 157 extern void arm_final_prescan_insn (rtx_insn *);
 158 extern int arm_debugger_arg_offset (int, rtx);
 159 extern bool arm_is_long_call_p (tree);
 160 extern int    arm_emit_vector_const (FILE *, rtx);
 161 extern void arm_emit_fp16_const (rtx c);
 162 extern const char * arm_output_load_gr (rtx *);
 163 extern const char *vfp_output_vstmd (rtx *);
 164 extern void arm_output_multireg_pop (rtx *, bool, rtx, bool, bool);
 165 extern void arm_set_return_address (rtx, rtx);
 166 extern int arm_eliminable_register (rtx);
 167 extern const char *arm_output_shift(rtx *, int);
 168 extern const char *arm_output_iwmmxt_shift_immediate (const char *, rtx *, bool);
 169 extern const char *arm_output_iwmmxt_tinsr (rtx *);
 170 extern unsigned int arm_sync_loop_insns (rtx , rtx *);
 171 extern int arm_attr_length_push_multi(rtx, rtx);
 172 extern int arm_attr_length_pop_multi(rtx *, bool, bool);
 173 extern void arm_expand_compare_and_swap (rtx op[]);
 174 extern void arm_split_compare_and_swap (rtx op[]);
 175 extern void arm_split_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx, rtx);
 176 extern rtx arm_load_tp (rtx);
 177 extern bool arm_coproc_builtin_available (enum unspecv);
 178 extern bool arm_coproc_ldc_stc_legitimate_address (rtx);
 179
 180 #if defined TREE_CODE
 181 extern void arm_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree);
 182 extern bool arm_pad_arg_upward (machine_mode, const_tree);
 183 extern bool arm_pad_reg_upward (machine_mode, tree, int);
 184 #endif
 185 extern int arm_apply_result_size (void);
 186
 187 #endif /* RTX_CODE */
 188
 189 /* Thumb functions.  */
 190 extern void arm_init_expanders (void);
 191 extern const char *thumb1_unexpanded_epilogue (void);
 192 extern void thumb1_expand_prologue (void);
 193 extern void thumb1_expand_epilogue (void);
 194 extern const char *thumb1_output_interwork (void);
 195 extern int thumb_shiftable_const (unsigned HOST_WIDE_INT);
 196 #ifdef RTX_CODE
 197 extern enum arm_cond_code maybe_get_arm_condition_code (rtx);
 198 extern void thumb1_final_prescan_insn (rtx_insn *);
 199 extern void thumb2_final_prescan_insn (rtx_insn *);
 200 extern const char *thumb_load_double_from_address (rtx *);
 201 extern const char *thumb_output_move_mem_multiple (int, rtx *);
 202 extern const char *thumb_call_via_reg (rtx);
 203 extern void thumb_expand_movmemqi (rtx *);
 204 extern rtx arm_return_addr (int, rtx);
 205 extern void thumb_reload_out_hi (rtx *);
 206 extern void thumb_set_return_address (rtx, rtx);
 207 extern const char *thumb1_output_casesi (rtx *);
 208 extern const char *thumb2_output_casesi (rtx *);
 209 #endif
 210
 211 /* Defined in pe.c.  */
 212 extern int arm_dllexport_name_p (const char *);
 213 extern int arm_dllimport_name_p (const char *);
 214
 215 #ifdef TREE_CODE
 216 extern void arm_pe_unique_section (tree, int);
 217 extern void arm_pe_encode_section_info (tree, rtx, int);
 218 extern int arm_dllexport_p (tree);
 219 extern int arm_dllimport_p (tree);
 220 extern void arm_mark_dllexport (tree);
 221 extern void arm_mark_dllimport (tree);
 222 extern bool arm_change_mode_p (tree);
 223 #endif
 224
 225 extern tree arm_valid_target_attribute_tree (tree, struct gcc_options *,
 226                                              struct gcc_options *);
 227 extern void arm_configure_build_target (struct arm_build_target *,
 228                                         struct cl_target_option *,
 229                                         struct gcc_options *, bool);
 230 extern void arm_pr_long_calls (struct cpp_reader *);
 231 extern void arm_pr_no_long_calls (struct cpp_reader *);
 232 extern void arm_pr_long_calls_off (struct cpp_reader *);
 233
 234 extern const char *arm_mangle_type (const_tree);
 235 extern const char *arm_mangle_builtin_type (const_tree);
 236
 237 extern void arm_order_regs_for_local_alloc (void);
 238
 239 extern int arm_max_conditional_execute ();
 240
 241 /* Vectorizer cost model implementation.  */
 242 struct cpu_vec_costs {
 243   const int scalar_stmt_cost;   /* Cost of any scalar operation, excluding
 244                                    load and store.  */
 245   const int scalar_load_cost;   /* Cost of scalar load.  */
 246   const int scalar_store_cost;  /* Cost of scalar store.  */
 247   const int vec_stmt_cost;      /* Cost of any vector operation, excluding
 248                                    load, store, vector-to-scalar and
 249                                    scalar-to-vector operation.  */
 250   const int vec_to_scalar_cost;    /* Cost of vect-to-scalar operation.  */
 251   const int scalar_to_vec_cost;    /* Cost of scalar-to-vector operation.  */
 252   const int vec_align_load_cost;   /* Cost of aligned vector load.  */
 253   const int vec_unalign_load_cost; /* Cost of unaligned vector load.  */
 254   const int vec_unalign_store_cost; /* Cost of unaligned vector load.  */
 255   const int vec_store_cost;        /* Cost of vector store.  */
 256   const int cond_taken_branch_cost;    /* Cost of taken branch for vectorizer
 257                                           cost model.  */
 258   const int cond_not_taken_branch_cost;/* Cost of not taken branch for
 259                                           vectorizer cost model.  */
 260 };
 261
 262 #ifdef RTX_CODE
 263 /* This needs to be here because we need RTX_CODE and similar.  */
 264
 265 struct cpu_cost_table;
 266
 267 /* Dump function ARM_PRINT_TUNE_INFO should be updated whenever this
 268    structure is modified.  */
 269
 270 struct tune_params
 271 {
 272   const struct cpu_cost_table *insn_extra_cost;
 273   bool (*sched_adjust_cost) (rtx_insn *, int, rtx_insn *, int *);
 274   int (*branch_cost) (bool, bool);
 275   /* Vectorizer costs.  */
 276   const struct cpu_vec_costs* vec_costs;
 277   int constant_limit;
 278   /* Maximum number of instructions to conditionalise.  */
 279   int max_insns_skipped;
 280   /* Maximum number of instructions to inline calls to memset.  */
 281   int max_insns_inline_memset;
 282   /* Issue rate of the processor.  */
 283   unsigned int issue_rate;
 284   /* Explicit prefetch data.  */
 285   struct
 286     {
 287       int num_slots;
 288       int l1_cache_size;
 289       int l1_cache_line_size;
 290     } prefetch;
 291   enum {PREF_CONST_POOL_FALSE, PREF_CONST_POOL_TRUE}
 292     prefer_constant_pool: 1;
 293   /* Prefer STRD/LDRD instructions over PUSH/POP/LDM/STM.  */
 294   enum {PREF_LDRD_FALSE, PREF_LDRD_TRUE} prefer_ldrd_strd: 1;
 295   /* The preference for non short cirtcuit operation when optimizing for
 296      performance. The first element covers Thumb state and the second one
 297      is for ARM state.  */
 298   enum log_op_non_short_circuit {LOG_OP_NON_SHORT_CIRCUIT_FALSE,
 299                                  LOG_OP_NON_SHORT_CIRCUIT_TRUE};
 300   log_op_non_short_circuit logical_op_non_short_circuit_thumb: 1;
 301   log_op_non_short_circuit logical_op_non_short_circuit_arm: 1;
 302   /* Prefer 32-bit encoding instead of flag-setting 16-bit encoding.  */
 303   enum {DISPARAGE_FLAGS_NEITHER, DISPARAGE_FLAGS_PARTIAL, DISPARAGE_FLAGS_ALL}
 304     disparage_flag_setting_t16_encodings: 2;
 305   enum {PREF_NEON_64_FALSE, PREF_NEON_64_TRUE} prefer_neon_for_64bits: 1;
 306   /* Prefer to inline string operations like memset by using Neon.  */
 307   enum {PREF_NEON_STRINGOPS_FALSE, PREF_NEON_STRINGOPS_TRUE}
 308     string_ops_prefer_neon: 1;
 309   /* Bitfield encoding the fusible pairs of instructions.  Use FUSE_OPS
 310      in an initializer if multiple fusion operations are supported on a
 311      target.  */
 312   enum fuse_ops
 313   {
 314     FUSE_NOTHING   = 0,
 315     FUSE_MOVW_MOVT = 1 << 0,
 316     FUSE_AES_AESMC = 1 << 1
 317   } fusible_ops: 2;
 318   /* Depth of scheduling queue to check for L2 autoprefetcher.  */
 319   enum {SCHED_AUTOPREF_OFF, SCHED_AUTOPREF_RANK, SCHED_AUTOPREF_FULL}
 320     sched_autopref: 2;
 321 };
 322
 323 /* Smash multiple fusion operations into a type that can be used for an
 324    initializer.  */
 325 #define FUSE_OPS(x) ((tune_params::fuse_ops) (x))
 326
 327 extern const struct tune_params *current_tune;
 328 extern int vfp3_const_double_for_fract_bits (rtx);
 329 /* return power of two from operand, otherwise 0.  */
 330 extern int vfp3_const_double_for_bits (rtx);
 331
 332 extern void arm_emit_coreregs_64bit_shift (enum rtx_code, rtx, rtx, rtx, rtx,
 333                                            rtx);
 334 extern bool arm_fusion_enabled_p (tune_params::fuse_ops);
 335 extern bool arm_valid_symbolic_address_p (rtx);
 336 extern bool arm_validize_comparison (rtx *, rtx *, rtx *);
 337 #endif /* RTX_CODE */
 338
 339 extern bool arm_gen_setmem (rtx *);
 340 extern void arm_expand_vec_perm (rtx target, rtx op0, rtx op1, rtx sel);
 341 extern bool arm_expand_vec_perm_const (rtx target, rtx op0, rtx op1, rtx sel);
 342
 343 extern bool arm_autoinc_modes_ok_p (machine_mode, enum arm_auto_incmodes);
 344
 345 extern void arm_emit_eabi_attribute (const char *, int, int);
 346
 347 extern void arm_reset_previous_fndecl (void);
 348 extern void save_restore_target_globals (tree);
 349
 350 /* Defined in gcc/common/config/arm-common.c.  */
 351 extern const char *arm_rewrite_selected_cpu (const char *name);
 352
 353 /* Defined in gcc/common/config/arm-c.c.  */
 354 extern void arm_lang_object_attributes_init (void);
 355 extern void arm_register_target_pragmas (void);
 356 extern void arm_cpu_cpp_builtins (struct cpp_reader *);
 357
 358 extern bool arm_is_constant_pool_ref (rtx);
 359
 360 /* The bits in this mask specify which instruction scheduling options should
 361    be used.  */
 362 extern unsigned int tune_flags;
 363
 364 /* Nonzero if this chip supports the ARM Architecture 3M extensions.  */
 365 extern int arm_arch3m;
 366
 367 /* Nonzero if this chip supports the ARM Architecture 4 extensions.  */
 368 extern int arm_arch4;
 369
 370 /* Nonzero if this chip supports the ARM Architecture 4t extensions.  */
 371 extern int arm_arch4t;
 372
 373 /* Nonzero if this chip supports the ARM Architecture 5 extensions.  */
 374 extern int arm_arch5;
 375
 376 /* Nonzero if this chip supports the ARM Architecture 5E extensions.  */
 377 extern int arm_arch5e;
 378
 379 /* Nonzero if this chip supports the ARM Architecture 6 extensions.  */
 380 extern int arm_arch6;
 381
 382 /* Nonzero if this chip supports the ARM 6K extensions.  */
 383 extern int arm_arch6k;
 384
 385 /* Nonzero if this chip supports the ARM 6KZ extensions.  */
 386 extern int arm_arch6kz;
 387
 388 /* Nonzero if instructions present in ARMv6-M can be used.  */
 389 extern int arm_arch6m;
 390
 391 /* Nonzero if this chip supports the ARM 7 extensions.  */
 392 extern int arm_arch7;
 393
 394 /* Nonzero if this chip supports the Large Physical Address Extension.  */
 395 extern int arm_arch_lpae;
 396
 397 /* Nonzero if instructions not present in the 'M' profile can be used.  */
 398 extern int arm_arch_notm;
 399
 400 /* Nonzero if instructions present in ARMv7E-M can be used.  */
 401 extern int arm_arch7em;
 402
 403 /* Nonzero if instructions present in ARMv8 can be used.  */
 404 extern int arm_arch8;
 405
 406 /* Nonzero if this chip can benefit from load scheduling.  */
 407 extern int arm_ld_sched;
 408
 409 /* Nonzero if this chip is a StrongARM.  */
 410 extern int arm_tune_strongarm;
 411
 412 /* Nonzero if this chip supports Intel Wireless MMX technology.  */
 413 extern int arm_arch_iwmmxt;
 414
 415 /* Nonzero if this chip supports Intel Wireless MMX2 technology.  */
 416 extern int arm_arch_iwmmxt2;
 417
 418 /* Nonzero if this chip is an XScale.  */
 419 extern int arm_arch_xscale;
 420
 421 /* Nonzero if tuning for XScale  */
 422 extern int arm_tune_xscale;
 423
 424 /* Nonzero if we want to tune for stores that access the write-buffer.
 425    This typically means an ARM6 or ARM7 with MMU or MPU.  */
 426 extern int arm_tune_wbuf;
 427
 428 /* Nonzero if tuning for Cortex-A9.  */
 429 extern int arm_tune_cortex_a9;
 430
 431 /* Nonzero if we should define __THUMB_INTERWORK__ in the
 432    preprocessor.
 433    XXX This is a bit of a hack, it's intended to help work around
 434    problems in GLD which doesn't understand that armv5t code is
 435    interworking clean.  */
 436 extern int arm_cpp_interwork;
 437
 438 /* Nonzero if chip supports Thumb 1.  */
 439 extern int arm_arch_thumb1;
 440
 441 /* Nonzero if chip supports Thumb 2.  */
 442 extern int arm_arch_thumb2;
 443
 444 /* Nonzero if chip supports integer division instruction.  */
 445 extern int arm_arch_arm_hwdiv;
 446 extern int arm_arch_thumb_hwdiv;
 447
 448 /* Nonzero if chip disallows volatile memory access in IT block.  */
 449 extern int arm_arch_no_volatile_ce;
 450
 451 /* Nonzero if we should use Neon to handle 64-bits operations rather
 452    than core registers.  */
 453 extern int prefer_neon_for_64bits;
 454
 455 /* Structure defining the current overall architectural target and tuning.  */
 456 struct arm_build_target
 457 {
 458   /* Name of the target CPU, if known, or NULL if the target CPU was not
 459      specified by the user (and inferred from the -march option).  */
 460   const char *core_name;
 461   /* Name of the target ARCH.  NULL if there is a selected CPU.  */
 462   const char *arch_name;
 463   /* Preprocessor substring (never NULL).  */
 464   const char *arch_pp_name;
 465   /* CPU identifier for the core we're compiling for (architecturally).  */
 466   enum processor_type arch_core;
 467   /* The base architecture value.  */
 468   enum base_architecture base_arch;
 469   /* Bitmap encapsulating the isa_bits for the target environment.  */
 470   sbitmap isa;
 471   /* Flags used for tuning.  Long term, these move into tune_params.  */
 472   unsigned int tune_flags;
 473   /* Tables with more detailed tuning information.  */
 474   const struct tune_params *tune;
 475   /* CPU identifier for the tuning target.  */
 476   enum processor_type tune_core;
 477 };
 478
 479 extern struct arm_build_target arm_active_target;
 480
 481
 482 #endif /* ! GCC_ARM_PROTOS_H */