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/* 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
<http://www.gnu.org/licenses/>. */
/* ------------------------------------------------------------------------ */
/* 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 ();
/* ------------------------------------------------------------------------ */
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