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