gcc/config/s390/s390-protos.h

   1 /* Definitions of target machine for GNU compiler, for IBM S/390.
   2    Copyright (C) 2000-2022 Free Software Foundation, Inc.
   3
   4    Contributed by Hartmut Penner (hpenner@de.ibm.com)
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22
  23
  24 /* Prototypes of functions used for constraint evaluation in
  25    constraints.c.  */
  26
  27 extern int s390_mem_constraint (const char *str, rtx op);
  28 extern int s390_O_constraint_str (const char c, HOST_WIDE_INT value);
  29 extern int s390_N_constraint_str (const char *str, HOST_WIDE_INT value);
  30 extern int s390_float_const_zero_p (rtx value);
  31 extern bool s390_check_symref_alignment (rtx addr, HOST_WIDE_INT alignment);
  32
  33
  34 /* In s390-common.c.  */
  35 extern bool s390_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED,
  36                                 struct gcc_options *opts_set ATTRIBUTE_UNUSED,
  37                                 const struct cl_decoded_option *decoded,
  38                                 location_t loc);
  39
  40 /* Declare functions in s390.c.  */
  41
  42 extern HOST_WIDE_INT s390_initial_elimination_offset (int, int);
  43 extern void s390_emit_prologue (void);
  44 extern void s390_emit_epilogue (bool);
  45 extern void s390_expand_split_stack_prologue (void);
  46 extern bool s390_can_use_simple_return_insn (void);
  47 extern bool s390_can_use_return_insn (void);
  48 extern void s390_function_profiler (FILE *, int);
  49 extern void s390_set_has_landing_pad_p (bool);
  50 extern bool s390_hard_regno_rename_ok (unsigned int, unsigned int);
  51 extern int s390_class_max_nregs (enum reg_class, machine_mode);
  52 extern bool s390_function_arg_vector (machine_mode, const_tree);
  53 extern bool s390_return_addr_from_memory(void);
  54 extern bool s390_fma_allowed_p (machine_mode);
  55 #if S390_USE_TARGET_ATTRIBUTE
  56 extern tree s390_valid_target_attribute_tree (tree args,
  57                                               struct gcc_options *opts,
  58                                               const struct gcc_options
  59                                               *opts_set, bool is_pragma);
  60 extern void s390_activate_target_options (tree new_tree);
  61 extern void
  62 s390_asm_output_function_prefix (FILE *asm_out_file,
  63                                  const char *fnname ATTRIBUTE_UNUSED);
  64 extern void
  65 s390_asm_declare_function_size (FILE *asm_out_file,
  66                                 const char *fnname ATTRIBUTE_UNUSED, tree decl);
  67 #endif
  68
  69 extern void s390_rawmemchr (machine_mode elt_mode, rtx dst, rtx src, rtx pat);
  70
  71 #ifdef RTX_CODE
  72 extern int s390_extra_constraint_str (rtx, int, const char *);
  73 extern int s390_const_ok_for_constraint_p (HOST_WIDE_INT, int, const char *);
  74 extern int s390_const_double_ok_for_constraint_p (rtx, int, const char *);
  75 extern int s390_single_part (rtx, machine_mode, machine_mode, int);
  76 extern unsigned HOST_WIDE_INT s390_extract_part (rtx, machine_mode, int);
  77 extern bool s390_contiguous_bitmask_p (unsigned HOST_WIDE_INT, bool, int, int *, int *);
  78 extern bool s390_contiguous_bitmask_vector_p (rtx, int *, int *);
  79 extern bool s390_bytemask_vector_p (rtx, unsigned *);
  80 extern bool s390_split_ok_p (rtx, rtx, machine_mode, int);
  81 extern bool s390_overlap_p (rtx, rtx, HOST_WIDE_INT);
  82 extern bool s390_offset_p (rtx, rtx, rtx);
  83 extern bool s390_rel_address_ok_p (rtx);
  84 extern int tls_symbolic_operand (rtx);
  85
  86 extern bool s390_match_ccmode (rtx_insn *, machine_mode);
  87 extern machine_mode s390_tm_ccmode (rtx, rtx, bool);
  88 extern machine_mode s390_select_ccmode (enum rtx_code, rtx, rtx);
  89 extern rtx s390_emit_compare (enum rtx_code, rtx, rtx);
  90 extern rtx_insn *s390_emit_jump (rtx, rtx);
  91 extern bool symbolic_reference_mentioned_p (rtx);
  92 extern bool tls_symbolic_reference_mentioned_p (rtx);
  93 extern bool legitimate_la_operand_p (rtx);
  94 extern bool preferred_la_operand_p (rtx, rtx);
  95 extern int legitimate_pic_operand_p (rtx);
  96 extern bool legitimate_reload_constant_p (rtx);
  97 extern rtx legitimize_pic_address (rtx, rtx);
  98 extern rtx legitimize_reload_address (rtx, machine_mode, int, int);
  99 extern enum reg_class s390_secondary_input_reload_class (enum reg_class,
 100                                                          machine_mode,
 101                                                          rtx);
 102 extern enum reg_class s390_secondary_output_reload_class (enum reg_class,
 103                                                           machine_mode,
 104                                                           rtx);
 105 extern void s390_reload_larl_operand (rtx , rtx , rtx);
 106 extern void s390_reload_symref_address (rtx , rtx , rtx , bool);
 107 extern void s390_expand_plus_operand (rtx, rtx, rtx);
 108 extern void emit_symbolic_move (rtx *);
 109 extern void s390_load_address (rtx, rtx);
 110 extern bool s390_expand_cpymem (rtx, rtx, rtx);
 111 extern void s390_expand_setmem (rtx, rtx, rtx);
 112 extern bool s390_expand_cmpmem (rtx, rtx, rtx, rtx);
 113 extern void s390_expand_vec_strlen (rtx, rtx, rtx);
 114 extern void s390_expand_vec_movstr (rtx, rtx, rtx);
 115 extern bool s390_expand_addcc (enum rtx_code, rtx, rtx, rtx, rtx, rtx);
 116 extern bool s390_expand_insv (rtx, rtx, rtx, rtx);
 117 extern void s390_expand_cs (machine_mode, rtx, rtx, rtx, rtx, rtx, bool);
 118 extern void s390_expand_atomic_exchange_tdsi (rtx, rtx, rtx);
 119 extern void s390_expand_atomic (machine_mode, enum rtx_code,
 120                                 rtx, rtx, rtx, bool);
 121 extern void s390_expand_tbegin (rtx, rtx, rtx, bool);
 122 extern void s390_expand_vec_compare (rtx, enum rtx_code, rtx, rtx);
 123 extern void s390_expand_vec_compare_cc (rtx, enum rtx_code, rtx, rtx, bool);
 124 extern enum rtx_code s390_reverse_condition (machine_mode, enum rtx_code);
 125 extern void s390_expand_vcond (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
 126 extern void s390_expand_vec_init (rtx, rtx);
 127 extern rtx s390_expand_merge_perm_const (machine_mode, bool);
 128 extern void s390_expand_merge (rtx, rtx, rtx, bool);
 129 extern rtx s390_build_signbit_mask (machine_mode);
 130 extern rtx s390_return_addr_rtx (int, rtx);
 131 extern rtx s390_back_chain_rtx (void);
 132 extern rtx_insn *s390_emit_call (rtx, rtx, rtx, rtx);
 133 extern void s390_expand_logical_operator (enum rtx_code,
 134                                           machine_mode, rtx *);
 135 extern bool s390_logical_operator_ok_p (rtx *);
 136 extern void s390_narrow_logical_operator (enum rtx_code, rtx *, rtx *);
 137 extern void s390_split_access_reg (rtx, rtx *, rtx *);
 138
 139 extern void print_operand_address (FILE *, rtx);
 140 extern void print_operand (FILE *, rtx, int);
 141 extern void s390_output_pool_entry (rtx, machine_mode, unsigned int);
 142 extern bool s390_const_int_pool_entry_p (rtx, HOST_WIDE_INT *);
 143 extern int s390_label_align (rtx_insn *);
 144 extern int s390_agen_dep_p (rtx_insn *, rtx_insn *);
 145 extern rtx_insn *s390_load_got (void);
 146 extern rtx s390_get_thread_pointer (void);
 147 extern void s390_emit_tpf_eh_return (rtx);
 148 extern bool s390_legitimate_address_without_index_p (rtx);
 149 extern bool s390_decompose_addrstyle_without_index (rtx, rtx *,
 150                                                     HOST_WIDE_INT *);
 151 extern bool s390_valid_shift_count (rtx op, HOST_WIDE_INT required_mask = 63);
 152 extern int s390_branch_condition_mask (rtx);
 153 extern int s390_compare_and_branch_condition_mask (rtx);
 154 extern bool s390_extzv_shift_ok (int, int, unsigned HOST_WIDE_INT);
 155 extern void s390_asm_output_function_label (FILE *, const char *, tree);
 156 extern void s390_output_split_stack_data (rtx, rtx, rtx, rtx);
 157
 158 enum s390_indirect_branch_type
 159   {
 160     s390_indirect_branch_type_jump = 0,
 161     s390_indirect_branch_type_call,
 162     s390_indirect_branch_type_return
 163   };
 164 extern void s390_indirect_branch_via_thunk (unsigned int regno,
 165                                             unsigned int return_addr_regno,
 166                                             rtx comparison_operator,
 167                                             enum s390_indirect_branch_type type);
 168 extern void s390_indirect_branch_via_inline_thunk (rtx execute_target);
 169 #endif /* RTX_CODE */
 170
 171 /* s390-c.c routines */
 172 extern void s390_cpu_cpp_builtins (struct cpp_reader *);
 173 extern void s390_register_target_pragmas (void);
 174
 175 /* Routines for s390-c.c */
 176 extern bool s390_const_operand_ok (tree, int, int, tree);
 177
 178 /* s390-d.c routines */
 179 extern void s390_d_target_versions (void);
 180 extern void s390_d_register_target_info (void);
 181
 182 /* Pass management.  */
 183 namespace gcc { class context; }
 184 class rtl_opt_pass;
 185
 186 extern rtl_opt_pass *make_pass_s390_early_mach (gcc::context *ctxt);