| /* Definitions of target machine for GNU compiler, for IBM RS/6000. |
| Copyright (C) 2000-2021 Free Software Foundation, Inc. |
| Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) |
| |
| 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/>. */ |
| |
| #ifndef GCC_RS6000_PROTOS_H |
| #define GCC_RS6000_PROTOS_H |
| |
| /* Declare functions in rs6000.c */ |
| |
| #ifdef RTX_CODE |
| |
| #ifdef TREE_CODE |
| extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, int, int, int, |
| tree, machine_mode); |
| #endif /* TREE_CODE */ |
| |
| extern int easy_altivec_constant (rtx, machine_mode); |
| extern bool xxspltib_constant_p (rtx, machine_mode, int *, int *); |
| extern int vspltis_shifted (rtx); |
| extern HOST_WIDE_INT const_vector_elt_as_int (rtx, unsigned int); |
| extern bool macho_lo_sum_memory_operand (rtx, machine_mode); |
| extern int num_insns_constant (rtx, machine_mode); |
| extern int small_data_operand (rtx, machine_mode); |
| extern bool mem_operand_gpr (rtx, machine_mode); |
| extern bool mem_operand_ds_form (rtx, machine_mode); |
| extern bool toc_relative_expr_p (const_rtx, bool, const_rtx *, const_rtx *); |
| extern void validate_condition_mode (enum rtx_code, machine_mode); |
| extern bool legitimate_constant_pool_address_p (const_rtx, machine_mode, |
| bool); |
| extern bool legitimate_indirect_address_p (rtx, int); |
| extern bool legitimate_indexed_address_p (rtx, int); |
| extern bool avoiding_indexed_address_p (machine_mode); |
| extern rtx rs6000_force_indexed_or_indirect_mem (rtx x); |
| |
| extern rtx rs6000_got_register (rtx); |
| extern rtx find_addr_reg (rtx); |
| extern rtx gen_easy_altivec_constant (rtx); |
| extern const char *output_vec_const_move (rtx *); |
| extern const char *rs6000_output_move_128bit (rtx *); |
| extern bool rs6000_move_128bit_ok_p (rtx []); |
| extern bool rs6000_split_128bit_ok_p (rtx []); |
| extern void rs6000_expand_float128_convert (rtx, rtx, bool); |
| extern void rs6000_expand_vector_init (rtx, rtx); |
| extern void rs6000_expand_vector_set (rtx, rtx, rtx); |
| extern void rs6000_expand_vector_extract (rtx, rtx, rtx); |
| extern void rs6000_split_vec_extract_var (rtx, rtx, rtx, rtx, rtx); |
| extern rtx rs6000_adjust_vec_address (rtx, rtx, rtx, rtx, machine_mode); |
| extern void altivec_expand_vec_perm_le (rtx op[4]); |
| extern void rs6000_expand_extract_even (rtx, rtx, rtx); |
| extern void rs6000_expand_interleave (rtx, rtx, rtx, bool); |
| extern void rs6000_scale_v2df (rtx, rtx, int); |
| extern void rs6000_generate_float2_code (bool, rtx, rtx, rtx); |
| extern void rs6000_generate_float2_double_code (rtx, rtx, rtx); |
| extern void rs6000_generate_vsigned2_code (bool, rtx, rtx, rtx); |
| extern int expand_block_clear (rtx[]); |
| extern int expand_block_move (rtx[], bool); |
| extern bool expand_block_compare (rtx[]); |
| extern bool expand_strn_compare (rtx[], int); |
| extern bool rs6000_is_valid_mask (rtx, int *, int *, machine_mode); |
| extern bool rs6000_is_valid_and_mask (rtx, machine_mode); |
| extern bool rs6000_is_valid_shift_mask (rtx, rtx, machine_mode); |
| extern bool rs6000_is_valid_insert_mask (rtx, rtx, machine_mode); |
| extern const char *rs6000_insn_for_and_mask (machine_mode, rtx *, bool); |
| extern const char *rs6000_insn_for_shift_mask (machine_mode, rtx *, bool); |
| extern const char *rs6000_insn_for_insert_mask (machine_mode, rtx *, bool); |
| extern bool rs6000_is_valid_2insn_and (rtx, machine_mode); |
| extern void rs6000_emit_2insn_and (machine_mode, rtx *, bool, int); |
| extern int registers_ok_for_quad_peep (rtx, rtx); |
| extern int mems_ok_for_quad_peep (rtx, rtx); |
| extern bool gpr_or_gpr_p (rtx, rtx); |
| extern bool direct_move_p (rtx, rtx); |
| extern bool quad_address_p (rtx, machine_mode, bool); |
| extern bool quad_load_store_p (rtx, rtx); |
| extern bool fusion_gpr_load_p (rtx, rtx, rtx, rtx); |
| extern void expand_fusion_gpr_load (rtx *); |
| extern void emit_fusion_addis (rtx, rtx); |
| extern const char *emit_fusion_gpr_load (rtx, rtx); |
| extern enum reg_class (*rs6000_preferred_reload_class_ptr) (rtx, |
| enum reg_class); |
| extern enum reg_class (*rs6000_secondary_reload_class_ptr) (enum reg_class, |
| machine_mode, |
| rtx); |
| extern void rs6000_secondary_reload_inner (rtx, rtx, rtx, bool); |
| extern void rs6000_secondary_reload_gpr (rtx, rtx, rtx, bool); |
| |
| |
| extern int ccr_bit (rtx, int); |
| extern void rs6000_output_function_entry (FILE *, const char *); |
| extern void print_operand (FILE *, rtx, int); |
| extern void print_operand_address (FILE *, rtx); |
| extern const char *rs6000_call_template (rtx *, unsigned int); |
| extern const char *rs6000_sibcall_template (rtx *, unsigned int); |
| extern const char *rs6000_indirect_call_template (rtx *, unsigned int); |
| extern const char *rs6000_indirect_sibcall_template (rtx *, unsigned int); |
| extern const char *rs6000_pltseq_template (rtx *, int); |
| extern enum rtx_code rs6000_reverse_condition (machine_mode, |
| enum rtx_code); |
| extern rtx rs6000_emit_eqne (machine_mode, rtx, rtx, rtx); |
| extern rtx rs6000_emit_fp_cror (rtx_code, machine_mode, rtx); |
| extern void rs6000_emit_sCOND (machine_mode, rtx[]); |
| extern void rs6000_emit_cbranch (machine_mode, rtx[]); |
| extern char * output_cbranch (rtx, const char *, int, rtx_insn *); |
| extern const char * output_probe_stack_range (rtx, rtx, rtx); |
| extern void rs6000_emit_dot_insn (rtx dst, rtx src, int dot, rtx ccreg); |
| extern bool rs6000_emit_set_const (rtx, rtx); |
| extern bool rs6000_emit_cmove (rtx, rtx, rtx, rtx); |
| extern bool rs6000_emit_int_cmove (rtx, rtx, rtx, rtx); |
| extern int rs6000_emit_vector_cond_expr (rtx, rtx, rtx, rtx, rtx, rtx); |
| extern void rs6000_emit_minmax (rtx, enum rtx_code, rtx, rtx); |
| extern void rs6000_expand_atomic_compare_and_swap (rtx op[]); |
| extern rtx swap_endian_selector_for_mode (machine_mode mode); |
| |
| extern void rs6000_expand_atomic_exchange (rtx op[]); |
| extern void rs6000_expand_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx); |
| extern void rs6000_emit_swdiv (rtx, rtx, rtx, bool); |
| extern void rs6000_emit_swsqrt (rtx, rtx, bool); |
| extern void output_toc (FILE *, rtx, int, machine_mode); |
| extern void rs6000_fatal_bad_address (rtx); |
| extern rtx create_TOC_reference (rtx, rtx); |
| extern void rs6000_split_multireg_move (rtx, rtx); |
| extern void rs6000_emit_le_vsx_permute (rtx, rtx, machine_mode); |
| extern void rs6000_emit_le_vsx_move (rtx, rtx, machine_mode); |
| extern bool valid_sf_si_move (rtx, rtx, machine_mode); |
| extern void rs6000_emit_move (rtx, rtx, machine_mode); |
| extern bool rs6000_legitimate_offset_address_p (machine_mode, rtx, |
| bool, bool); |
| extern rtx rs6000_find_base_term (rtx); |
| extern rtx rs6000_return_addr (int, rtx); |
| extern void rs6000_output_symbol_ref (FILE*, rtx); |
| extern HOST_WIDE_INT rs6000_initial_elimination_offset (int, int); |
| extern void rs6000_emit_popcount (rtx, rtx); |
| extern void rs6000_emit_parity (rtx, rtx); |
| |
| extern rtx rs6000_machopic_legitimize_pic_address (rtx, machine_mode, |
| rtx); |
| extern rtx rs6000_allocate_stack_temp (machine_mode, bool, bool); |
| extern align_flags rs6000_loop_align (rtx); |
| extern void rs6000_split_logical (rtx [], enum rtx_code, bool, bool, bool); |
| extern bool rs6000_function_pcrel_p (struct function *); |
| extern bool rs6000_pcrel_p (void); |
| extern bool rs6000_fndecl_pcrel_p (const_tree); |
| extern void rs6000_output_addr_vec_elt (FILE *, int); |
| |
| /* Different PowerPC instruction formats that are used by GCC. There are |
| various other instruction formats used by the PowerPC hardware, but these |
| formats are not currently used by GCC. */ |
| |
| enum insn_form { |
| INSN_FORM_BAD, /* Bad instruction format. */ |
| INSN_FORM_BASE_REG, /* Base register only. */ |
| INSN_FORM_D, /* Reg + 16-bit numeric offset. */ |
| INSN_FORM_DS, /* Reg + offset, bottom 2 bits must be 0. */ |
| INSN_FORM_DQ, /* Reg + offset, bottom 4 bits must be 0. */ |
| INSN_FORM_X, /* Base register + index register. */ |
| INSN_FORM_UPDATE, /* Address updates base register. */ |
| INSN_FORM_LO_SUM, /* Reg + offset using symbol. */ |
| INSN_FORM_PREFIXED_NUMERIC, /* Reg + 34 bit numeric offset. */ |
| INSN_FORM_PCREL_LOCAL, /* PC-relative local symbol. */ |
| INSN_FORM_PCREL_EXTERNAL /* PC-relative external symbol. */ |
| }; |
| |
| /* Instruction format for the non-prefixed version of a load or store. This is |
| used to determine if a 16-bit offset is valid to be used with a non-prefixed |
| (traditional) instruction or if the bottom bits of the offset cannot be used |
| with a DS or DQ instruction format, and GCC has to use a prefixed |
| instruction for the load or store. */ |
| |
| enum non_prefixed_form { |
| NON_PREFIXED_DEFAULT, /* Use the default. */ |
| NON_PREFIXED_D, /* All 16-bits are valid. */ |
| NON_PREFIXED_DS, /* Bottom 2 bits must be 0. */ |
| NON_PREFIXED_DQ, /* Bottom 4 bits must be 0. */ |
| NON_PREFIXED_X /* No offset memory form exists. */ |
| }; |
| |
| extern enum insn_form address_to_insn_form (rtx, machine_mode, |
| enum non_prefixed_form); |
| extern bool address_is_non_pfx_d_or_x (rtx addr, machine_mode mode, |
| enum non_prefixed_form non_prefix_format); |
| extern bool pcrel_opt_valid_mem_p (rtx, machine_mode, rtx); |
| enum non_prefixed_form reg_to_non_prefixed (rtx reg, machine_mode mode); |
| extern bool prefixed_load_p (rtx_insn *); |
| extern bool prefixed_store_p (rtx_insn *); |
| extern bool prefixed_paddi_p (rtx_insn *); |
| extern void rs6000_asm_output_opcode (FILE *); |
| extern void output_pcrel_opt_reloc (rtx); |
| extern void rs6000_final_prescan_insn (rtx_insn *, rtx [], int); |
| extern int rs6000_adjust_insn_length (rtx_insn *, int); |
| |
| /* Return true if the address can be used for a prefixed load, store, or add |
| immediate instructions that cannot be used with a non-prefixed instruction. |
| For example, using a numeric offset that is not valid for the non-prefixed |
| instruction or a PC-relative reference to a local symbol would return true, |
| but an address with an offset of 64 would not return true. |
| |
| References to external PC-relative symbols aren't allowed, because GCC has |
| to load the address into a register and then issue a separate load or |
| store. */ |
| |
| static inline bool |
| address_is_prefixed (rtx addr, |
| machine_mode mode, |
| enum non_prefixed_form non_prefixed) |
| { |
| enum insn_form iform = address_to_insn_form (addr, mode, non_prefixed); |
| return (iform == INSN_FORM_PREFIXED_NUMERIC |
| || iform == INSN_FORM_PCREL_LOCAL); |
| } |
| #endif /* RTX_CODE */ |
| |
| #ifdef TREE_CODE |
| extern unsigned int rs6000_data_alignment (tree, unsigned int, enum data_align); |
| extern unsigned int rs6000_special_adjust_field_align (tree, unsigned int); |
| extern unsigned int rs6000_special_round_type_align (tree, unsigned int, |
| unsigned int); |
| extern unsigned int darwin_rs6000_special_round_type_align (tree, unsigned int, |
| unsigned int); |
| extern tree altivec_resolve_overloaded_builtin (location_t, tree, void *); |
| extern rtx rs6000_libcall_value (machine_mode); |
| extern rtx rs6000_va_arg (tree, tree); |
| extern int function_ok_for_sibcall (tree); |
| extern int rs6000_reg_parm_stack_space (tree, bool); |
| extern void rs6000_asm_weaken_decl (FILE *, tree, const char *, const char *); |
| extern void rs6000_xcoff_declare_function_name (FILE *, const char *, tree); |
| extern void rs6000_xcoff_declare_object_name (FILE *, const char *, tree); |
| extern void rs6000_xcoff_asm_output_aligned_decl_common (FILE *, tree, |
| const char *, |
| unsigned HOST_WIDE_INT, |
| unsigned int); |
| extern void rs6000_elf_declare_function_name (FILE *, const char *, tree); |
| extern bool rs6000_elf_in_small_data_p (const_tree); |
| |
| #endif /* TREE_CODE */ |
| |
| extern int direct_return (void); |
| extern int first_reg_to_save (void); |
| extern int first_fp_reg_to_save (void); |
| extern void output_ascii (FILE *, const char *, int); |
| extern void rs6000_gen_section_name (char **, const char *, const char *); |
| extern void output_function_profiler (FILE *, int); |
| extern void output_profile_hook (int); |
| extern int rs6000_trampoline_size (void); |
| extern alias_set_type get_TOC_alias_set (void); |
| extern void rs6000_emit_prologue (void); |
| extern void rs6000_emit_load_toc_table (int); |
| extern unsigned int rs6000_dbx_register_number (unsigned int, unsigned int); |
| extern void rs6000_emit_epilogue (enum epilogue_type); |
| extern void rs6000_expand_split_stack_prologue (void); |
| extern void rs6000_split_stack_space_check (rtx, rtx); |
| extern void rs6000_emit_eh_reg_restore (rtx, rtx); |
| extern void rs6000_call_aix (rtx, rtx, rtx, rtx); |
| extern void rs6000_sibcall_aix (rtx, rtx, rtx, rtx); |
| extern void rs6000_call_sysv (rtx, rtx, rtx, rtx); |
| extern void rs6000_sibcall_sysv (rtx, rtx, rtx, rtx); |
| extern void rs6000_call_darwin (rtx, rtx, rtx, rtx); |
| extern void rs6000_sibcall_darwin (rtx, rtx, rtx, rtx); |
| extern void rs6000_aix_asm_output_dwarf_table_ref (char *); |
| extern void get_ppc476_thunk_name (char name[32]); |
| extern bool rs6000_overloaded_builtin_p (enum rs6000_builtins); |
| extern bool rs6000_builtin_is_supported_p (enum rs6000_builtins); |
| extern const char *rs6000_overloaded_builtin_name (enum rs6000_builtins); |
| extern int rs6000_store_data_bypass_p (rtx_insn *, rtx_insn *); |
| extern HOST_WIDE_INT rs6000_builtin_mask_calculate (void); |
| extern void rs6000_asm_output_dwarf_pcrel (FILE *file, int size, |
| const char *label); |
| extern void rs6000_asm_output_dwarf_datarel (FILE *file, int size, |
| const char *label); |
| extern long rs6000_const_f32_to_i32 (rtx operand); |
| |
| /* Declare functions in rs6000-c.c */ |
| |
| extern void rs6000_pragma_longcall (struct cpp_reader *); |
| extern void rs6000_cpu_cpp_builtins (struct cpp_reader *); |
| #ifdef TREE_CODE |
| extern bool rs6000_pragma_target_parse (tree, tree); |
| #endif |
| extern void rs6000_activate_target_options (tree new_tree); |
| extern void rs6000_target_modify_macros (bool, HOST_WIDE_INT, HOST_WIDE_INT); |
| extern void (*rs6000_target_modify_macros_ptr) (bool, HOST_WIDE_INT, |
| HOST_WIDE_INT); |
| |
| /* Declare functions in rs6000-d.c */ |
| extern void rs6000_d_target_versions (void); |
| extern void rs6000_d_register_target_info (void); |
| |
| #ifdef NO_DOLLAR_IN_LABEL |
| const char * rs6000_xcoff_strip_dollar (const char *); |
| #endif |
| |
| extern unsigned char rs6000_class_max_nregs[][LIM_REG_CLASSES]; |
| extern unsigned char rs6000_hard_regno_nregs[][FIRST_PSEUDO_REGISTER]; |
| |
| extern bool rs6000_linux_float_exceptions_rounding_supported_p (void); |
| |
| /* Pass management. */ |
| namespace gcc { class context; } |
| class rtl_opt_pass; |
| |
| extern rtl_opt_pass *make_pass_analyze_swaps (gcc::context *); |
| extern rtl_opt_pass *make_pass_pcrel_opt (gcc::context *); |
| extern bool rs6000_sum_of_two_registers_p (const_rtx expr); |
| extern bool rs6000_quadword_masked_address_p (const_rtx exp); |
| extern rtx rs6000_gen_lvx (enum machine_mode, rtx, rtx); |
| extern rtx rs6000_gen_stvx (enum machine_mode, rtx, rtx); |
| |
| extern void rs6000_emit_xxspltidp_v2df (rtx, long value); |
| #endif /* rs6000-protos.h */ |
