-extern int arm_hard_regno_mode_ok PARAMS ((unsigned int, enum machine_mode));
-extern int const_ok_for_arm PARAMS ((HOST_WIDE_INT));
-extern int arm_split_constant PARAMS ((RTX_CODE, enum machine_mode,
- HOST_WIDE_INT, rtx, rtx, int));
-extern RTX_CODE arm_canonicalize_comparison PARAMS ((RTX_CODE, rtx *));
-extern int legitimate_pic_operand_p PARAMS ((rtx));
-extern rtx legitimize_pic_address PARAMS ((rtx, enum machine_mode, rtx));
-extern int arm_rtx_costs PARAMS ((rtx, RTX_CODE, RTX_CODE));
-extern int const_double_rtx_ok_for_fpu PARAMS ((rtx));
-extern int neg_const_double_rtx_ok_for_fpu PARAMS ((rtx));
-
-/* Predicates. */
-extern int s_register_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_hard_register_operand PARAMS ((rtx, enum machine_mode));
-extern int f_register_operand PARAMS ((rtx, enum machine_mode));
-extern int reg_or_int_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_reload_memory_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_rhs_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_rhsm_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_add_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_not_operand PARAMS ((rtx, enum machine_mode));
-extern int offsettable_memory_operand PARAMS ((rtx, enum machine_mode));
-extern int alignable_memory_operand PARAMS ((rtx, enum machine_mode));
-extern int bad_signed_byte_operand PARAMS ((rtx, enum machine_mode));
-extern int fpu_rhs_operand PARAMS ((rtx, enum machine_mode));
-extern int fpu_add_operand PARAMS ((rtx, enum machine_mode));
-extern int power_of_two_operand PARAMS ((rtx, enum machine_mode));
-extern int nonimmediate_di_operand PARAMS ((rtx, enum machine_mode));
-extern int di_operand PARAMS ((rtx, enum machine_mode));
-extern int nonimmediate_soft_df_operand PARAMS ((rtx, enum machine_mode));
-extern int soft_df_operand PARAMS ((rtx, enum machine_mode));
-extern int index_operand PARAMS ((rtx, enum machine_mode));
-extern int const_shift_operand PARAMS ((rtx, enum machine_mode));
-extern int arm_comparison_operator PARAMS ((rtx, enum machine_mode));
-extern int shiftable_operator PARAMS ((rtx, enum machine_mode));
-extern int shift_operator PARAMS ((rtx, enum machine_mode));
-extern int equality_operator PARAMS ((rtx, enum machine_mode));
-extern int minmax_operator PARAMS ((rtx, enum machine_mode));
-extern int cc_register PARAMS ((rtx, enum machine_mode));
-extern int dominant_cc_register PARAMS ((rtx, enum machine_mode));
-extern int logical_binary_operator PARAMS ((rtx, enum machine_mode));
-extern int multi_register_push PARAMS ((rtx, enum machine_mode));
-extern int load_multiple_operation PARAMS ((rtx, enum machine_mode));
-extern int store_multiple_operation PARAMS ((rtx, enum machine_mode));
-
-extern int symbol_mentioned_p PARAMS ((rtx));
-extern int label_mentioned_p PARAMS ((rtx));
-extern RTX_CODE minmax_code PARAMS ((rtx));
-extern int adjacent_mem_locations PARAMS ((rtx, rtx));
-extern int load_multiple_sequence PARAMS ((rtx *, int, int *, int *,
- HOST_WIDE_INT *));
-extern const char * emit_ldm_seq PARAMS ((rtx *, int));
-extern int store_multiple_sequence PARAMS ((rtx *, int, int *, int *,
- HOST_WIDE_INT *));
-extern const char * emit_stm_seq PARAMS ((rtx *, int));
-extern rtx arm_gen_load_multiple PARAMS ((int, int, rtx, int, int, int,
- int, int));
-extern rtx arm_gen_store_multiple PARAMS ((int, int, rtx, int, int, int,
- int, int));
-extern int arm_gen_movstrqi PARAMS ((rtx *));
-extern rtx arm_gen_rotated_half_load PARAMS ((rtx));
-extern enum machine_mode arm_select_cc_mode PARAMS ((RTX_CODE, rtx, rtx));
-extern rtx arm_gen_compare_reg PARAMS ((RTX_CODE, rtx, rtx));
-extern void arm_reload_in_hi PARAMS ((rtx *));
-extern void arm_reload_out_hi PARAMS ((rtx *));
-extern void arm_reorg PARAMS ((rtx));
-extern const char * fp_immediate_constant PARAMS ((rtx));
-extern const char * output_call PARAMS ((rtx *));
-extern const char * output_call_mem PARAMS ((rtx *));
-extern const char * output_mov_long_double_fpu_from_arm PARAMS ((rtx *));
-extern const char * output_mov_long_double_arm_from_fpu PARAMS ((rtx *));
-extern const char * output_mov_long_double_arm_from_arm PARAMS ((rtx *));
-extern const char * output_mov_double_fpu_from_arm PARAMS ((rtx *));
-extern const char * output_mov_double_arm_from_fpu PARAMS ((rtx *));
-extern const char * output_move_double PARAMS ((rtx *));
-extern const char * output_mov_immediate PARAMS ((rtx *));
-extern const char * output_add_immediate PARAMS ((rtx *));
-extern const char * arithmetic_instr PARAMS ((rtx, int));
-extern void output_ascii_pseudo_op PARAMS ((FILE *, const unsigned char *, int));
-extern const char * output_return_instruction PARAMS ((rtx, int, int));
-extern void arm_poke_function_name PARAMS ((FILE *, const char *));
-extern void arm_print_operand PARAMS ((FILE *, rtx, int));
-extern void arm_print_operand_address PARAMS ((FILE *, rtx));
-extern void arm_final_prescan_insn PARAMS ((rtx));
-extern int arm_go_if_legitimate_address PARAMS ((enum machine_mode, rtx));
-extern int arm_debugger_arg_offset PARAMS ((int, rtx));
-extern int arm_is_longcall_p PARAMS ((rtx, int, int));
+extern bool arm_vector_mode_supported_p (enum machine_mode);
+extern int arm_hard_regno_mode_ok (unsigned int, enum machine_mode);
+extern int const_ok_for_arm (HOST_WIDE_INT);
+extern int arm_split_constant (RTX_CODE, enum machine_mode, rtx,
+ HOST_WIDE_INT, rtx, rtx, int);
+extern RTX_CODE arm_canonicalize_comparison (RTX_CODE, enum machine_mode,
+ rtx *);
+extern int legitimate_pic_operand_p (rtx);
+extern rtx legitimize_pic_address (rtx, enum machine_mode, rtx);
+extern rtx legitimize_tls_address (rtx, rtx);
+extern int arm_legitimate_address_p (enum machine_mode, rtx, RTX_CODE, int);
+extern int thumb1_legitimate_address_p (enum machine_mode, rtx, int);
+extern int thumb2_legitimate_address_p (enum machine_mode, rtx, int);
+extern int thumb_legitimate_offset_p (enum machine_mode, HOST_WIDE_INT);
+extern rtx arm_legitimize_address (rtx, rtx, enum machine_mode);
+extern rtx thumb_legitimize_address (rtx, rtx, enum machine_mode);
+extern rtx thumb_legitimize_reload_address (rtx *, enum machine_mode, int, int,
+ int);
+extern int arm_const_double_rtx (rtx);
+extern int neg_const_double_rtx_ok_for_fpa (rtx);
+extern int vfp3_const_double_rtx (rtx);
+extern int neon_immediate_valid_for_move (rtx, enum machine_mode, rtx *, int *);
+extern int neon_immediate_valid_for_logic (rtx, enum machine_mode, int, rtx *,
+ int *);
+extern char *neon_output_logic_immediate (const char *, rtx *,
+ enum machine_mode, int, int);
+extern void neon_pairwise_reduce (rtx, rtx, enum machine_mode,
+ rtx (*) (rtx, rtx, rtx));
+extern void neon_expand_vector_init (rtx, rtx);
+extern void neon_lane_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
+extern void neon_const_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
+extern HOST_WIDE_INT neon_element_bits (enum machine_mode);
+extern void neon_reinterpret (rtx, rtx);
+extern void neon_emit_pair_result_insn (enum machine_mode,
+ rtx (*) (rtx, rtx, rtx, rtx),
+ rtx, rtx, rtx);
+extern void neon_disambiguate_copy (rtx *, rtx *, rtx *, unsigned int);
+extern enum reg_class coproc_secondary_reload_class (enum machine_mode, rtx,
+ bool);
+extern bool arm_tls_referenced_p (rtx);
+extern bool arm_cannot_force_const_mem (rtx);
+
+extern int cirrus_memory_offset (rtx);
+extern int arm_coproc_mem_operand (rtx, bool);
+extern int neon_vector_mem_operand (rtx, bool);
+extern int neon_struct_mem_operand (rtx);
+extern int arm_no_early_store_addr_dep (rtx, rtx);
+extern int arm_no_early_alu_shift_dep (rtx, rtx);
+extern int arm_no_early_alu_shift_value_dep (rtx, rtx);
+extern int arm_no_early_mul_dep (rtx, rtx);
+extern int arm_mac_accumulator_is_mul_result (rtx, rtx);
+
+extern int tls_mentioned_p (rtx);
+extern int symbol_mentioned_p (rtx);
+extern int label_mentioned_p (rtx);
+extern RTX_CODE minmax_code (rtx);
+extern int adjacent_mem_locations (rtx, rtx);
+extern int load_multiple_sequence (rtx *, int, int *, int *, HOST_WIDE_INT *);
+extern const char *emit_ldm_seq (rtx *, int);
+extern int store_multiple_sequence (rtx *, int, int *, int *, HOST_WIDE_INT *);
+extern const char * emit_stm_seq (rtx *, int);
+extern rtx arm_gen_load_multiple (int, int, rtx, int, int,
+ rtx, HOST_WIDE_INT *);
+extern rtx arm_gen_store_multiple (int, int, rtx, int, int,
+ rtx, HOST_WIDE_INT *);
+extern int arm_gen_movmemqi (rtx *);
+extern enum machine_mode arm_select_cc_mode (RTX_CODE, rtx, rtx);
+extern enum machine_mode arm_select_dominance_cc_mode (rtx, rtx,
+ HOST_WIDE_INT);
+extern rtx arm_gen_compare_reg (RTX_CODE, rtx, rtx);
+extern rtx arm_gen_return_addr_mask (void);
+extern void arm_reload_in_hi (rtx *);
+extern void arm_reload_out_hi (rtx *);
+extern int arm_const_double_inline_cost (rtx);
+extern bool arm_const_double_by_parts (rtx);
+extern const char *fp_immediate_constant (rtx);
+extern void arm_emit_call_insn (rtx, rtx);
+extern const char *output_call (rtx *);
+extern const char *output_call_mem (rtx *);
+void arm_emit_movpair (rtx, rtx);
+extern const char *output_mov_long_double_fpa_from_arm (rtx *);
+extern const char *output_mov_long_double_arm_from_fpa (rtx *);
+extern const char *output_mov_long_double_arm_from_arm (rtx *);
+extern const char *output_mov_double_fpa_from_arm (rtx *);
+extern const char *output_mov_double_arm_from_fpa (rtx *);
+extern const char *output_move_double (rtx *);
+extern const char *output_move_quad (rtx *);
+extern const char *output_move_vfp (rtx *operands);
+extern const char *output_move_neon (rtx *operands);
+extern const char *output_add_immediate (rtx *);
+extern const char *arithmetic_instr (rtx, int);
+extern void output_ascii_pseudo_op (FILE *, const unsigned char *, int);
+extern const char *output_return_instruction (rtx, int, int);
+extern void arm_poke_function_name (FILE *, const char *);
+extern void arm_print_operand (FILE *, rtx, int);
+extern void arm_print_operand_address (FILE *, rtx);
+extern void arm_final_prescan_insn (rtx);
+extern int arm_debugger_arg_offset (int, rtx);
+extern bool arm_is_long_call_p (tree);
+extern int arm_emit_vector_const (FILE *, rtx);
+extern const char * arm_output_load_gr (rtx *);
+extern const char *vfp_output_fstmd (rtx *);
+extern void arm_set_return_address (rtx, rtx);
+extern int arm_eliminable_register (rtx);
+extern const char *arm_output_shift(rtx *, int);
+
+extern bool arm_output_addr_const_extra (FILE *, rtx);