1 /* Prototypes for exported functions defined in arm.c and pe.c 2 Copyright (C) 1999-2013 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 extern enum unwind_info_type arm_except_unwind_info (struct gcc_options *); 26 extern int use_return_insn (int, rtx); 27 extern enum reg_class arm_regno_class (int); 28 extern void arm_load_pic_register (unsigned long); 29 extern int arm_volatile_func (void); 30 extern void arm_expand_prologue (void); 31 extern void arm_expand_epilogue (bool); 32 extern void thumb2_expand_return (void); 33 extern const char *arm_strip_name_encoding (const char *); 34 extern void arm_asm_output_labelref (FILE *, const char *); 35 extern void thumb2_asm_output_opcode (FILE *); 36 extern unsigned long arm_current_func_type (void); 37 extern HOST_WIDE_INT arm_compute_initial_elimination_offset (unsigned int, 38 unsigned int); 39 extern HOST_WIDE_INT thumb_compute_initial_elimination_offset (unsigned int, 40 unsigned int); 41 extern unsigned int arm_dbx_register_number (unsigned int); 42 extern void arm_output_fn_unwind (FILE *, bool); 43 44 45 #ifdef RTX_CODE 46 extern bool arm_vector_mode_supported_p (enum machine_mode); 47 extern bool arm_small_register_classes_for_mode_p (enum machine_mode); 48 extern int arm_hard_regno_mode_ok (unsigned int, enum machine_mode); 49 extern bool arm_modes_tieable_p (enum machine_mode, enum machine_mode); 50 extern int const_ok_for_arm (HOST_WIDE_INT); 51 extern int const_ok_for_op (HOST_WIDE_INT, enum rtx_code); 52 extern int const_ok_for_dimode_op (HOST_WIDE_INT, enum rtx_code); 53 extern int arm_split_constant (RTX_CODE, enum machine_mode, rtx, 54 HOST_WIDE_INT, rtx, rtx, int); 55 extern int legitimate_pic_operand_p (rtx); 56 extern rtx legitimize_pic_address (rtx, enum machine_mode, rtx); 57 extern rtx legitimize_tls_address (rtx, rtx); 58 extern bool arm_legitimate_address_p (enum machine_mode, rtx, bool); 59 extern int arm_legitimate_address_outer_p (enum machine_mode, rtx, RTX_CODE, int); 60 extern int thumb_legitimate_offset_p (enum machine_mode, HOST_WIDE_INT); 61 extern bool arm_legitimize_reload_address (rtx *, enum machine_mode, int, int, 62 int); 63 extern rtx thumb_legitimize_reload_address (rtx *, enum machine_mode, int, int, 64 int); 65 extern int thumb1_legitimate_address_p (enum machine_mode, rtx, int); 66 extern bool ldm_stm_operation_p (rtx, bool, enum machine_mode mode, 67 bool, bool); 68 extern int arm_const_double_rtx (rtx); 69 extern int vfp3_const_double_rtx (rtx); 70 extern int neon_immediate_valid_for_move (rtx, enum machine_mode, rtx *, int *); 71 extern int neon_immediate_valid_for_logic (rtx, enum machine_mode, int, rtx *, 72 int *); 73 extern int neon_immediate_valid_for_shift (rtx, enum machine_mode, rtx *, 74 int *, bool); 75 extern char *neon_output_logic_immediate (const char *, rtx *, 76 enum machine_mode, int, int); 77 extern char *neon_output_shift_immediate (const char *, char, rtx *, 78 enum machine_mode, int, bool); 79 extern void neon_pairwise_reduce (rtx, rtx, enum machine_mode, 80 rtx (*) (rtx, rtx, rtx)); 81 extern rtx neon_make_constant (rtx); 82 extern void neon_expand_vector_init (rtx, rtx); 83 extern void neon_lane_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT); 84 extern void neon_const_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT); 85 extern HOST_WIDE_INT neon_element_bits (enum machine_mode); 86 extern void neon_reinterpret (rtx, rtx); 87 extern void neon_emit_pair_result_insn (enum machine_mode, 88 rtx (*) (rtx, rtx, rtx, rtx), 89 rtx, rtx, rtx); 90 extern void neon_disambiguate_copy (rtx *, rtx *, rtx *, unsigned int); 91 extern void neon_split_vcombine (rtx op[3]); 92 extern enum reg_class coproc_secondary_reload_class (enum machine_mode, rtx, 93 bool); 94 extern bool arm_tls_referenced_p (rtx); 95 96 extern int arm_coproc_mem_operand (rtx, bool); 97 extern int neon_vector_mem_operand (rtx, int); 98 extern int neon_struct_mem_operand (rtx); 99 extern int arm_no_early_store_addr_dep (rtx, rtx); 100 extern int arm_early_store_addr_dep (rtx, rtx); 101 extern int arm_early_load_addr_dep (rtx, rtx); 102 extern int arm_no_early_alu_shift_dep (rtx, rtx); 103 extern int arm_no_early_alu_shift_value_dep (rtx, rtx); 104 extern int arm_no_early_mul_dep (rtx, rtx); 105 extern int arm_mac_accumulator_is_result (rtx, rtx); 106 extern int arm_mac_accumulator_is_mul_result (rtx, rtx); 107 108 extern int tls_mentioned_p (rtx); 109 extern int symbol_mentioned_p (rtx); 110 extern int label_mentioned_p (rtx); 111 extern RTX_CODE minmax_code (rtx); 112 extern bool arm_sat_operator_match (rtx, rtx, int *, bool *); 113 extern int adjacent_mem_locations (rtx, rtx); 114 extern bool gen_ldm_seq (rtx *, int, bool); 115 extern bool gen_stm_seq (rtx *, int); 116 extern bool gen_const_stm_seq (rtx *, int); 117 extern rtx arm_gen_load_multiple (int *, int, rtx, int, rtx, HOST_WIDE_INT *); 118 extern rtx arm_gen_store_multiple (int *, int, rtx, int, rtx, HOST_WIDE_INT *); 119 extern bool offset_ok_for_ldrd_strd (HOST_WIDE_INT); 120 extern bool operands_ok_ldrd_strd (rtx, rtx, rtx, HOST_WIDE_INT, bool, bool); 121 extern int arm_gen_movmemqi (rtx *); 122 extern enum machine_mode arm_select_cc_mode (RTX_CODE, rtx, rtx); 123 extern enum machine_mode arm_select_dominance_cc_mode (rtx, rtx, 124 HOST_WIDE_INT); 125 extern rtx arm_gen_compare_reg (RTX_CODE, rtx, rtx, rtx); 126 extern rtx arm_gen_return_addr_mask (void); 127 extern void arm_reload_in_hi (rtx *); 128 extern void arm_reload_out_hi (rtx *); 129 extern int arm_const_double_inline_cost (rtx); 130 extern bool arm_const_double_by_parts (rtx); 131 extern bool arm_const_double_by_immediates (rtx); 132 extern const char *fp_immediate_constant (rtx); 133 extern void arm_emit_call_insn (rtx, rtx); 134 extern const char *output_call (rtx *); 135 extern const char *output_call_mem (rtx *); 136 void arm_emit_movpair (rtx, rtx); 137 extern const char *output_mov_long_double_arm_from_arm (rtx *); 138 extern const char *output_move_double (rtx *, bool, int *count); 139 extern const char *output_move_quad (rtx *); 140 extern int arm_count_output_move_double_insns (rtx *); 141 extern const char *output_move_vfp (rtx *operands); 142 extern const char *output_move_neon (rtx *operands); 143 extern int arm_attr_length_move_neon (rtx); 144 extern int arm_address_offset_is_imm (rtx); 145 extern const char *output_add_immediate (rtx *); 146 extern const char *arithmetic_instr (rtx, int); 147 extern void output_ascii_pseudo_op (FILE *, const unsigned char *, int); 148 extern const char *output_return_instruction (rtx, bool, bool, bool); 149 extern void arm_poke_function_name (FILE *, const char *); 150 extern void arm_final_prescan_insn (rtx); 151 extern int arm_debugger_arg_offset (int, rtx); 152 extern bool arm_is_long_call_p (tree); 153 extern int arm_emit_vector_const (FILE *, rtx); 154 extern void arm_emit_fp16_const (rtx c); 155 extern const char * arm_output_load_gr (rtx *); 156 extern const char *vfp_output_fstmd (rtx *); 157 extern void arm_output_multireg_pop (rtx *, bool, rtx, bool, bool); 158 extern void arm_set_return_address (rtx, rtx); 159 extern int arm_eliminable_register (rtx); 160 extern const char *arm_output_shift(rtx *, int); 161 extern const char *arm_output_iwmmxt_shift_immediate (const char *, rtx *, bool); 162 extern const char *arm_output_iwmmxt_tinsr (rtx *); 163 extern unsigned int arm_sync_loop_insns (rtx , rtx *); 164 extern int arm_attr_length_push_multi(rtx, rtx); 165 extern void arm_expand_compare_and_swap (rtx op[]); 166 extern void arm_split_compare_and_swap (rtx op[]); 167 extern void arm_split_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx, rtx); 168 extern rtx arm_load_tp (rtx); 169 170 #if defined TREE_CODE 171 extern void arm_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree); 172 extern bool arm_pad_arg_upward (enum machine_mode, const_tree); 173 extern bool arm_pad_reg_upward (enum machine_mode, tree, int); 174 #endif 175 extern int arm_apply_result_size (void); 176 177 #endif /* RTX_CODE */ 178 179 /* Thumb functions. */ 180 extern void arm_init_expanders (void); 181 extern const char *thumb1_unexpanded_epilogue (void); 182 extern void thumb1_expand_prologue (void); 183 extern void thumb1_expand_epilogue (void); 184 extern const char *thumb1_output_interwork (void); 185 #ifdef TREE_CODE 186 extern int is_called_in_ARM_mode (tree); 187 #endif 188 extern int thumb_shiftable_const (unsigned HOST_WIDE_INT); 189 #ifdef RTX_CODE 190 extern enum arm_cond_code maybe_get_arm_condition_code (rtx); 191 extern void thumb1_final_prescan_insn (rtx); 192 extern void thumb2_final_prescan_insn (rtx); 193 extern const char *thumb_load_double_from_address (rtx *); 194 extern const char *thumb_output_move_mem_multiple (int, rtx *); 195 extern const char *thumb_call_via_reg (rtx); 196 extern void thumb_expand_movmemqi (rtx *); 197 extern rtx arm_return_addr (int, rtx); 198 extern void thumb_reload_out_hi (rtx *); 199 extern void thumb_reload_in_hi (rtx *); 200 extern void thumb_set_return_address (rtx, rtx); 201 extern const char *thumb1_output_casesi (rtx *); 202 extern const char *thumb2_output_casesi (rtx *); 203 #endif 204 205 /* Defined in pe.c. */ 206 extern int arm_dllexport_name_p (const char *); 207 extern int arm_dllimport_name_p (const char *); 208 209 #ifdef TREE_CODE 210 extern void arm_pe_unique_section (tree, int); 211 extern void arm_pe_encode_section_info (tree, rtx, int); 212 extern int arm_dllexport_p (tree); 213 extern int arm_dllimport_p (tree); 214 extern void arm_mark_dllexport (tree); 215 extern void arm_mark_dllimport (tree); 216 #endif 217 218 extern void arm_pr_long_calls (struct cpp_reader *); 219 extern void arm_pr_no_long_calls (struct cpp_reader *); 220 extern void arm_pr_long_calls_off (struct cpp_reader *); 221 222 extern void arm_lang_object_attributes_init(void); 223 224 extern const char *arm_mangle_type (const_tree); 225 226 extern void arm_order_regs_for_local_alloc (void); 227 228 /* Vectorizer cost model implementation. */ 229 struct cpu_vec_costs { 230 const int scalar_stmt_cost; /* Cost of any scalar operation, excluding 231 load and store. */ 232 const int scalar_load_cost; /* Cost of scalar load. */ 233 const int scalar_store_cost; /* Cost of scalar store. */ 234 const int vec_stmt_cost; /* Cost of any vector operation, excluding 235 load, store, vector-to-scalar and 236 scalar-to-vector operation. */ 237 const int vec_to_scalar_cost; /* Cost of vect-to-scalar operation. */ 238 const int scalar_to_vec_cost; /* Cost of scalar-to-vector operation. */ 239 const int vec_align_load_cost; /* Cost of aligned vector load. */ 240 const int vec_unalign_load_cost; /* Cost of unaligned vector load. */ 241 const int vec_unalign_store_cost; /* Cost of unaligned vector load. */ 242 const int vec_store_cost; /* Cost of vector store. */ 243 const int cond_taken_branch_cost; /* Cost of taken branch for vectorizer 244 cost model. */ 245 const int cond_not_taken_branch_cost;/* Cost of not taken branch for 246 vectorizer cost model. */ 247 }; 248 249 #ifdef RTX_CODE 250 /* This needs to be here because we need RTX_CODE and similar. */ 251 252 struct tune_params 253 { 254 bool (*rtx_costs) (rtx, RTX_CODE, RTX_CODE, int *, bool); 255 bool (*sched_adjust_cost) (rtx, rtx, rtx, int *); 256 int constant_limit; 257 /* Maximum number of instructions to conditionalise in 258 arm_final_prescan_insn. */ 259 int max_insns_skipped; 260 int num_prefetch_slots; 261 int l1_cache_size; 262 int l1_cache_line_size; 263 bool prefer_constant_pool; 264 int (*branch_cost) (bool, bool); 265 /* Prefer STRD/LDRD instructions over PUSH/POP/LDM/STM. */ 266 bool prefer_ldrd_strd; 267 /* The preference for non short cirtcuit operation when optimizing for 268 performance. The first element covers Thumb state and the second one 269 is for ARM state. */ 270 bool logical_op_non_short_circuit[2]; 271 /* Vectorizer costs. */ 272 const struct cpu_vec_costs* vec_costs; 273 }; 274 275 extern const struct tune_params *current_tune; 276 extern int vfp3_const_double_for_fract_bits (rtx); 277 278 extern void arm_emit_coreregs_64bit_shift (enum rtx_code, rtx, rtx, rtx, rtx, 279 rtx); 280 extern bool arm_validize_comparison (rtx *, rtx *, rtx *); 281 #endif /* RTX_CODE */ 282 283 extern void arm_expand_vec_perm (rtx target, rtx op0, rtx op1, rtx sel); 284 extern bool arm_expand_vec_perm_const (rtx target, rtx op0, rtx op1, rtx sel); 285 286 extern bool arm_autoinc_modes_ok_p (enum machine_mode, enum arm_auto_incmodes); 287 288 extern void arm_emit_eabi_attribute (const char *, int, int); 289 290 extern bool arm_is_constant_pool_ref (rtx); 291 292 #endif /* ! GCC_ARM_PROTOS_H */ 293