/* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler Copyright (C) 2012-2022 Free Software Foundation, Inc. Contributed by Andes Technology Corporation. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see . */ /* ------------------------------------------------------------------------ */ /* Defining Data Structures for Per-function Information. */ extern void nds32_init_expanders (void); /* Register Usage. */ /* -- Order of Allocation of Registers. */ extern void nds32_adjust_reg_alloc_order (void); /* Register Classes. */ extern enum reg_class nds32_regno_reg_class (int); /* Stack Layout and Calling Conventions. */ /* -- Basic Stack Layout. */ extern rtx nds32_dynamic_chain_address (rtx); extern rtx nds32_return_addr_rtx (int, rtx); /* -- Eliminating Frame Pointer and Arg Pointer. */ extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int, unsigned int); /* -- Passing Arguments in Registers. */ extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int); /* -- Function Entry and Exit. */ extern void nds32_expand_prologue (void); extern void nds32_expand_epilogue (bool); extern void nds32_expand_prologue_v3push (void); extern void nds32_expand_epilogue_v3pop (bool); extern void nds32_emit_push_fpr_callee_saved (int); extern void nds32_emit_pop_fpr_callee_saved (int); extern void nds32_emit_v3pop_fpr_callee_saved (int); /* Controlling Debugging Information Format. */ extern unsigned int nds32_dbx_register_number (unsigned int); /* ------------------------------------------------------------------------ */ /* Auxiliary functions for manipulation DI mode. */ extern rtx nds32_di_high_part_subreg(rtx); extern rtx nds32_di_low_part_subreg(rtx); /* Auxiliary functions for expanding rtl used in nds32-multiple.md. */ extern rtx nds32_expand_load_multiple (int, int, rtx, rtx, bool, rtx *); extern rtx nds32_expand_store_multiple (int, int, rtx, rtx, bool, rtx *); extern bool nds32_expand_cpymemsi (rtx, rtx, rtx, rtx); extern bool nds32_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx); extern bool nds32_expand_strlen (rtx, rtx, rtx, rtx); /* Auxiliary functions for expand unalign load instruction. */ extern void nds32_expand_unaligned_load (rtx *, enum machine_mode); /* Auxiliary functions for expand unalign store instruction. */ extern void nds32_expand_unaligned_store (rtx *, enum machine_mode); /* Auxiliary functions for multiple load/store predicate checking. */ extern bool nds32_valid_multiple_load_store_p (rtx, bool, bool); /* Auxiliary functions for guard function checking in pipelines.md. */ extern bool nds32_n7_load_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n7_last_load_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_load_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_load_bi_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_ex_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_last_load_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_last_load_two_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_n8_last_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_e8_load_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_e8_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_e8_ex_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_e8_last_load_to_ii_p (rtx_insn *, rtx_insn *); extern bool nds32_e8_last_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n9_2r1w_mm_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n9_3r2w_mm_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n9_last_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n10_ex_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n10_mm_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n10_last_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_gw_ex_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_gw_mm_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_gw_last_load_to_ex_p (rtx_insn *, rtx_insn *); extern bool nds32_n13_e2_to_e1_p (rtx_insn *, rtx_insn *); extern bool nds32_n13_load_to_e1_p (rtx_insn *, rtx_insn *); extern bool nds32_n13_load_to_e2_p (rtx_insn *, rtx_insn *); extern bool nds32_n13_last_load_to_e1_p (rtx_insn *, rtx_insn *); extern bool nds32_n13_last_load_to_e2_p (rtx_insn *, rtx_insn *); extern bool nds32_n13_last_two_load_to_e1_p (rtx_insn *, rtx_insn *); /* Auxiliary functions for stack operation predicate checking. */ extern bool nds32_valid_stack_push_pop_p (rtx, bool); /* Auxiliary functions for bit operation detection. */ extern bool nds32_can_use_bclr_p (HOST_WIDE_INT); extern bool nds32_can_use_bset_p (HOST_WIDE_INT); extern bool nds32_can_use_btgl_p (HOST_WIDE_INT); extern bool nds32_can_use_bitci_p (HOST_WIDE_INT); extern bool nds32_const_double_range_ok_p (rtx, machine_mode, HOST_WIDE_INT, HOST_WIDE_INT); extern bool nds32_const_unspec_p (rtx x); /* Auxiliary function for 'Computing the Length of an Insn'. */ extern int nds32_adjust_insn_length (rtx_insn *, int); /* Auxiliary functions for FP_AS_GP detection. */ extern bool nds32_symbol_load_store_p (rtx_insn *); extern bool nds32_naked_function_p (tree); /* Auxiliary functions for jump table generation. */ extern const char *nds32_output_casesi_pc_relative (rtx *); extern const char *nds32_output_casesi (rtx *); /* Auxiliary functions for conditional branch generation. */ extern enum nds32_expand_result_type nds32_expand_cbranch (rtx *); extern enum nds32_expand_result_type nds32_expand_cstore (rtx *); extern void nds32_expand_float_cbranch (rtx *); extern void nds32_expand_float_cstore (rtx *); /* Auxiliary functions for conditional move generation. */ extern enum nds32_expand_result_type nds32_expand_movcc (rtx *); extern void nds32_expand_float_movcc (rtx *); /* Auxiliary functions for expand extv/insv instruction. */ extern enum nds32_expand_result_type nds32_expand_extv (rtx *); extern enum nds32_expand_result_type nds32_expand_insv (rtx *); /* Auxiliary functions for expand PIC instruction. */ extern void nds32_expand_pic_move (rtx *); /* Auxiliary functions to legitimize PIC address. */ extern rtx nds32_legitimize_pic_address (rtx); /* Auxiliary functions for expand TLS instruction. */ extern void nds32_expand_tls_move (rtx *); /* Auxiliary functions to legitimize TLS address. */ extern rtx nds32_legitimize_tls_address (rtx); /* Auxiliary functions to identify thread-local symbol. */ extern bool nds32_tls_referenced_p (rtx); /* Auxiliary functions for expand ICT instruction. */ extern void nds32_expand_ict_move (rtx *); /* Auxiliary functions to legitimize address for indirect-call symbol. */ extern rtx nds32_legitimize_ict_address (rtx); /* Auxiliary functions to identify indirect-call symbol. */ extern bool nds32_indirect_call_referenced_p (rtx); /* Auxiliary functions to identify long-call symbol. */ extern bool nds32_long_call_p (rtx); /* Auxiliary functions to identify SYMBOL_REF and LABEL_REF pattern. */ extern bool symbolic_reference_mentioned_p (rtx); /* Auxiliary functions to identify conditional move comparison operand. */ extern int nds32_cond_move_p (rtx); /* Auxiliary functions to identify 16 bit addresing mode. */ extern enum nds32_16bit_address_type nds32_mem_format (rtx); /* Auxiliary functions to identify floating-point addresing mode. */ extern bool nds32_float_mem_operand_p (rtx); /* Auxiliary functions to output assembly code. */ extern const char *nds32_output_16bit_store (rtx *, int); extern const char *nds32_output_16bit_load (rtx *, int); extern const char *nds32_output_32bit_store (rtx *, int); extern const char *nds32_output_32bit_load (rtx *, int); extern const char *nds32_output_32bit_load_s (rtx *, int); extern const char *nds32_output_float_load(rtx *); extern const char *nds32_output_float_store(rtx *); extern const char *nds32_output_smw_single_word (rtx *); extern const char *nds32_output_smw_double_word (rtx *); extern const char *nds32_output_lmw_single_word (rtx *); extern const char *nds32_output_double (rtx *, bool); extern const char *nds32_output_cbranchsi4_equality_zero (rtx_insn *, rtx *); extern const char *nds32_output_cbranchsi4_equality_reg (rtx_insn *, rtx *); extern const char *nds32_output_cbranchsi4_equality_reg_or_const_int (rtx_insn *, rtx *); extern const char *nds32_output_cbranchsi4_greater_less_zero (rtx_insn *, rtx *); extern const char *nds32_output_unpkd8 (rtx, rtx, rtx, rtx, bool); extern const char *nds32_output_call (rtx, rtx *, rtx, const char *, const char *, bool); extern const char *nds32_output_tls_desc (rtx *); extern const char *nds32_output_tls_ie (rtx *); extern const char *nds32_output_symrel (rtx *); /* Auxiliary functions to output stack push/pop instruction. */ extern const char *nds32_output_stack_push (rtx); extern const char *nds32_output_stack_pop (rtx); extern const char *nds32_output_return (void); /* Auxiliary functions to split/output sms pattern. */ extern bool nds32_need_split_sms_p (rtx, rtx, rtx, rtx); extern const char *nds32_output_sms (rtx, rtx, rtx, rtx); extern void nds32_split_sms (rtx, rtx, rtx, rtx, rtx, rtx, rtx); /* Auxiliary functions to split double word RTX pattern. */ extern void nds32_spilt_doubleword (rtx *, bool); extern void nds32_split_ashiftdi3 (rtx, rtx, rtx); extern void nds32_split_ashiftrtdi3 (rtx, rtx, rtx); extern void nds32_split_lshiftrtdi3 (rtx, rtx, rtx); extern void nds32_split_rotatertdi3 (rtx, rtx, rtx); /* Auxiliary functions to split large constant RTX pattern. */ extern void nds32_expand_constant (machine_mode, HOST_WIDE_INT, rtx, rtx); /* Auxiliary functions to check using return with null epilogue. */ extern int nds32_can_use_return_insn (void); extern scalar_int_mode nds32_case_vector_shorten_mode (int, int, rtx); /* Auxiliary functions to decide output alignment or not. */ extern int nds32_target_alignment (rtx_insn *); extern unsigned int nds32_data_alignment (tree, unsigned int); extern unsigned int nds32_local_alignment (tree, unsigned int); /* Auxiliary functions to expand builtin functions. */ extern void nds32_init_builtins_impl (void); extern rtx nds32_expand_builtin_impl (tree, rtx, rtx, machine_mode, int); extern tree nds32_builtin_decl_impl (unsigned, bool); /* Auxiliary functions for ISR implementation. */ extern void nds32_check_isr_attrs_conflict (tree, tree); extern void nds32_construct_isr_vectors_information (tree, const char *); extern void nds32_asm_file_start_for_isr (void); extern void nds32_asm_file_end_for_isr (void); extern bool nds32_isr_function_p (tree); extern bool nds32_isr_function_critical_p (tree); /* Auxiliary functions for cost calculation. */ extern void nds32_init_rtx_costs (void); extern bool nds32_rtx_costs_impl (rtx, machine_mode, int, int, int *, bool); extern int nds32_address_cost_impl (rtx, machine_mode, addr_space_t, bool); /* Auxiliary functions for pre-define marco. */ extern void nds32_cpu_cpp_builtins(struct cpp_reader *); /* Auxiliary functions for const_vector's constraints. */ extern HOST_WIDE_INT const_vector_to_hwint (rtx); extern bool nds32_valid_CVp5_p (rtx); extern bool nds32_valid_CVs5_p (rtx); extern bool nds32_valid_CVs2_p (rtx); extern bool nds32_valid_CVhi_p (rtx); /* Auxiliary functions for lwm/smw. */ extern bool nds32_valid_smw_lwm_base_p (rtx); extern bool nds32_split_double_word_load_store_p (rtx *,bool); namespace nds32 { extern rtx extract_pattern_from_insn (rtx); size_t parallel_elements (rtx); rtx parallel_element (rtx, int); bool load_single_p (rtx_insn *); bool store_single_p (rtx_insn *); bool load_double_p (rtx_insn *); bool store_double_p (rtx_insn *); bool store_offset_reg_p (rtx_insn *); bool post_update_insn_p (rtx_insn *); bool immed_offset_p (rtx); int find_post_update_rtx (rtx_insn *); rtx extract_mem_rtx (rtx_insn *); rtx extract_base_reg (rtx_insn *); rtx extract_offset_rtx (rtx_insn *); rtx extract_shift_reg (rtx); bool movd44_insn_p (rtx_insn *); rtx extract_movd44_odd_reg (rtx_insn *); rtx extract_mac_non_acc_rtx (rtx_insn *); bool divmod_p (rtx_insn *); rtx extract_branch_target_rtx (rtx_insn *); rtx extract_branch_condition_rtx (rtx_insn *); } // namespace nds32 extern bool nds32_use_load_post_increment(machine_mode); /* Functions for create nds32 specific optimization pass. */ extern rtl_opt_pass *make_pass_nds32_relax_opt (gcc::context *); extern rtl_opt_pass *make_pass_nds32_fp_as_gp (gcc::context *); extern int nds32_alloc_relax_group_id (); /* ------------------------------------------------------------------------ */