/* Definitions of target machine for GNU compiler, for IBM S/390. Copyright (C) 2000-2022 Free Software Foundation, Inc. Contributed by Hartmut Penner (hpenner@de.ibm.com) 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 . */ /* Prototypes of functions used for constraint evaluation in constraints.c. */ extern int s390_mem_constraint (const char *str, rtx op); extern int s390_O_constraint_str (const char c, HOST_WIDE_INT value); extern int s390_N_constraint_str (const char *str, HOST_WIDE_INT value); extern int s390_float_const_zero_p (rtx value); extern bool s390_check_symref_alignment (rtx addr, HOST_WIDE_INT alignment); /* In s390-common.cc. */ extern bool s390_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED, struct gcc_options *opts_set ATTRIBUTE_UNUSED, const struct cl_decoded_option *decoded, location_t loc); /* Declare functions in s390.cc. */ extern HOST_WIDE_INT s390_initial_elimination_offset (int, int); extern void s390_emit_prologue (void); extern void s390_emit_epilogue (bool); extern void s390_expand_split_stack_prologue (void); extern bool s390_can_use_simple_return_insn (void); extern bool s390_can_use_return_insn (void); extern void s390_function_profiler (FILE *, int); extern void s390_set_has_landing_pad_p (bool); extern bool s390_hard_regno_rename_ok (unsigned int, unsigned int); extern int s390_class_max_nregs (enum reg_class, machine_mode); extern bool s390_return_addr_from_memory(void); extern rtx s390_gen_lowpart_subreg (machine_mode, rtx); extern bool s390_fma_allowed_p (machine_mode); #if S390_USE_TARGET_ATTRIBUTE extern tree s390_valid_target_attribute_tree (tree args, struct gcc_options *opts, const struct gcc_options *opts_set, bool is_pragma); extern void s390_activate_target_options (tree new_tree); extern void s390_asm_output_function_prefix (FILE *asm_out_file, const char *fnname ATTRIBUTE_UNUSED); extern void s390_asm_declare_function_size (FILE *asm_out_file, const char *fnname ATTRIBUTE_UNUSED, tree decl); #endif extern void s390_rawmemchr (machine_mode elt_mode, rtx dst, rtx src, rtx pat); #ifdef RTX_CODE extern int s390_extra_constraint_str (rtx, int, const char *); extern int s390_const_ok_for_constraint_p (HOST_WIDE_INT, int, const char *); extern int s390_const_double_ok_for_constraint_p (rtx, int, const char *); extern int s390_single_part (rtx, machine_mode, machine_mode, int); extern unsigned HOST_WIDE_INT s390_extract_part (rtx, machine_mode, int); extern bool s390_contiguous_bitmask_p (unsigned HOST_WIDE_INT, bool, int, int *, int *); extern bool s390_contiguous_bitmask_vector_p (rtx, int *, int *); extern bool s390_bytemask_vector_p (rtx, unsigned *); extern bool s390_split_ok_p (rtx, rtx, machine_mode, int); extern bool s390_overlap_p (rtx, rtx, HOST_WIDE_INT); extern bool s390_offset_p (rtx, rtx, rtx); extern bool s390_rel_address_ok_p (rtx); extern int tls_symbolic_operand (rtx); extern bool s390_match_ccmode (rtx_insn *, machine_mode); extern machine_mode s390_tm_ccmode (rtx, rtx, bool); extern machine_mode s390_select_ccmode (enum rtx_code, rtx, rtx); extern rtx s390_emit_compare (enum rtx_code, rtx, rtx); extern rtx_insn *s390_emit_jump (rtx, rtx); extern bool symbolic_reference_mentioned_p (rtx); extern bool tls_symbolic_reference_mentioned_p (rtx); extern bool legitimate_la_operand_p (rtx); extern bool preferred_la_operand_p (rtx, rtx); extern int legitimate_pic_operand_p (rtx); extern bool legitimate_reload_constant_p (rtx); extern rtx legitimize_pic_address (rtx, rtx); extern rtx legitimize_reload_address (rtx, machine_mode, int, int); extern enum reg_class s390_secondary_input_reload_class (enum reg_class, machine_mode, rtx); extern enum reg_class s390_secondary_output_reload_class (enum reg_class, machine_mode, rtx); extern void s390_reload_larl_operand (rtx , rtx , rtx); extern void s390_reload_symref_address (rtx , rtx , rtx , bool); extern void s390_expand_plus_operand (rtx, rtx, rtx); extern void emit_symbolic_move (rtx *); extern void s390_load_address (rtx, rtx); extern bool s390_expand_cpymem (rtx, rtx, rtx); extern void s390_expand_setmem (rtx, rtx, rtx); extern bool s390_expand_cmpmem (rtx, rtx, rtx, rtx); extern void s390_expand_vec_strlen (rtx, rtx, rtx); extern void s390_expand_vec_movstr (rtx, rtx, rtx); extern bool s390_expand_addcc (enum rtx_code, rtx, rtx, rtx, rtx, rtx); extern bool s390_expand_insv (rtx, rtx, rtx, rtx); extern void s390_expand_cs (machine_mode, rtx, rtx, rtx, rtx, rtx, bool); extern void s390_expand_atomic_exchange_tdsi (rtx, rtx, rtx); extern void s390_expand_atomic (machine_mode, enum rtx_code, rtx, rtx, rtx, bool); extern void s390_expand_tbegin (rtx, rtx, rtx, bool); extern void s390_expand_vec_compare (rtx, enum rtx_code, rtx, rtx); extern void s390_expand_vec_compare_cc (rtx, enum rtx_code, rtx, rtx, bool); extern enum rtx_code s390_reverse_condition (machine_mode, enum rtx_code); extern void s390_expand_vcond (rtx, rtx, rtx, enum rtx_code, rtx, rtx); extern void s390_expand_vec_init (rtx, rtx); extern rtx s390_expand_merge_perm_const (machine_mode, bool); extern void s390_expand_merge (rtx, rtx, rtx, bool); extern rtx s390_build_signbit_mask (machine_mode); extern rtx s390_return_addr_rtx (int, rtx); extern rtx s390_back_chain_rtx (void); extern rtx_insn *s390_emit_call (rtx, rtx, rtx, rtx); extern void s390_expand_logical_operator (enum rtx_code, machine_mode, rtx *); extern bool s390_logical_operator_ok_p (rtx *); extern void s390_narrow_logical_operator (enum rtx_code, rtx *, rtx *); extern void s390_split_access_reg (rtx, rtx *, rtx *); extern void print_operand_address (FILE *, rtx); extern void print_operand (FILE *, rtx, int); extern void s390_output_pool_entry (rtx, machine_mode, unsigned int); extern bool s390_const_int_pool_entry_p (rtx, HOST_WIDE_INT *); extern int s390_label_align (rtx_insn *); extern int s390_agen_dep_p (rtx_insn *, rtx_insn *); extern rtx_insn *s390_load_got (void); extern rtx s390_get_thread_pointer (void); extern void s390_emit_tpf_eh_return (rtx); extern bool s390_legitimate_address_without_index_p (rtx); extern bool s390_decompose_addrstyle_without_index (rtx, rtx *, HOST_WIDE_INT *); extern bool s390_valid_shift_count (rtx op, HOST_WIDE_INT required_mask = 63); extern int s390_branch_condition_mask (rtx); extern int s390_compare_and_branch_condition_mask (rtx); extern bool s390_extzv_shift_ok (int, int, unsigned HOST_WIDE_INT); extern void s390_asm_output_function_label (FILE *, const char *, tree); extern void s390_output_split_stack_data (rtx, rtx, rtx, rtx); enum s390_indirect_branch_type { s390_indirect_branch_type_jump = 0, s390_indirect_branch_type_call, s390_indirect_branch_type_return }; extern void s390_indirect_branch_via_thunk (unsigned int regno, unsigned int return_addr_regno, rtx comparison_operator, enum s390_indirect_branch_type type); extern void s390_indirect_branch_via_inline_thunk (rtx execute_target); #endif /* RTX_CODE */ /* s390-c.cc routines */ extern void s390_cpu_cpp_builtins (struct cpp_reader *); extern void s390_register_target_pragmas (void); /* Routines for s390-c.cc */ extern bool s390_const_operand_ok (tree, int, int, tree); /* Pass management. */ namespace gcc { class context; } class rtl_opt_pass; extern rtl_opt_pass *make_pass_s390_early_mach (gcc::context *ctxt);