gcc/config/nds32/nds32-protos.h

   1 /* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler
   2    Copyright (C) 2012-2018 Free Software Foundation, Inc.
   3    Contributed by Andes Technology Corporation.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 3, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21
  22 /* ------------------------------------------------------------------------ */
  23 \f
  24 /* Defining Data Structures for Per-function Information.  */
  25
  26 extern void nds32_init_expanders (void);
  27
  28 \f
  29 /* Register Usage.  */
  30
  31 /* -- Order of Allocation of Registers.  */
  32 extern void nds32_adjust_reg_alloc_order (void);
  33
  34 /* Register Classes.  */
  35
  36 extern enum reg_class nds32_regno_reg_class (int);
  37
  38 \f
  39 /* Stack Layout and Calling Conventions.  */
  40
  41 /* -- Basic Stack Layout.  */
  42
  43 extern rtx nds32_dynamic_chain_address (rtx);
  44 extern rtx nds32_return_addr_rtx (int, rtx);
  45
  46 /* -- Eliminating Frame Pointer and Arg Pointer.  */
  47
  48 extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
  49                                                        unsigned int);
  50
  51 /* -- Passing Arguments in Registers.  */
  52
  53 extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
  54                                         tree, rtx, tree, int);
  55
  56 /* -- Function Entry and Exit.  */
  57
  58 extern void nds32_expand_prologue (void);
  59 extern void nds32_expand_epilogue (bool);
  60 extern void nds32_expand_prologue_v3push (void);
  61 extern void nds32_expand_epilogue_v3pop (bool);
  62 extern void nds32_emit_push_fpr_callee_saved (int);
  63 extern void nds32_emit_pop_fpr_callee_saved (int);
  64 extern void nds32_emit_v3pop_fpr_callee_saved (int);
  65
  66 /* Controlling Debugging Information Format.  */
  67
  68 extern unsigned int nds32_dbx_register_number (unsigned int);
  69
  70 /* ------------------------------------------------------------------------ */
  71
  72 /* Auxiliary functions for auxiliary macros in nds32.h.  */
  73
  74 extern bool nds32_ls_333_p (rtx, rtx, rtx, machine_mode);
  75
  76 /* Auxiliary functions for lwm/smw.  */
  77
  78 extern bool nds32_valid_smw_lwm_base_p (rtx);
  79
  80 /* Auxiliary functions for expanding rtl used in nds32-multiple.md.  */
  81
  82 extern rtx nds32_expand_load_multiple (int, int, rtx, rtx, bool, rtx *);
  83 extern rtx nds32_expand_store_multiple (int, int, rtx, rtx, bool, rtx *);
  84 extern bool nds32_expand_movmemsi (rtx, rtx, rtx, rtx);
  85 extern bool nds32_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx);
  86 extern bool nds32_expand_strlen (rtx, rtx, rtx, rtx);
  87
  88 /* Auxiliary functions for expand unalign load instruction.  */
  89
  90 extern void nds32_expand_unaligned_load (rtx *, enum machine_mode);
  91
  92 /* Auxiliary functions for expand unalign store instruction.  */
  93
  94 extern void nds32_expand_unaligned_store (rtx *, enum machine_mode);
  95
  96 /* Auxiliary functions for multiple load/store predicate checking.  */
  97
  98 extern bool nds32_valid_multiple_load_store_p (rtx, bool, bool);
  99
 100 /* Auxiliary functions for stack operation predicate checking.  */
 101
 102 extern bool nds32_valid_stack_push_pop_p (rtx, bool);
 103
 104 /* Auxiliary functions for bit operation detection.  */
 105
 106 extern int nds32_can_use_bclr_p (int);
 107 extern int nds32_can_use_bset_p (int);
 108 extern int nds32_can_use_btgl_p (int);
 109
 110 extern int nds32_can_use_bitci_p (int);
 111
 112 extern bool nds32_const_double_range_ok_p (rtx, machine_mode,
 113                                            HOST_WIDE_INT, HOST_WIDE_INT);
 114
 115 /* Auxiliary function for 'Computing the Length of an Insn'.  */
 116
 117 extern int nds32_adjust_insn_length (rtx_insn *, int);
 118
 119 /* Auxiliary functions for FP_AS_GP detection.  */
 120
 121 extern int nds32_fp_as_gp_check_available (void);
 122
 123 extern bool nds32_symbol_load_store_p (rtx_insn *);
 124
 125 /* Auxiliary functions for jump table generation.  */
 126
 127 extern const char *nds32_output_casesi_pc_relative (rtx *);
 128 extern const char *nds32_output_casesi (rtx *);
 129
 130 /* Auxiliary functions for conditional branch generation.  */
 131
 132 extern enum nds32_expand_result_type nds32_expand_cbranch (rtx *);
 133 extern enum nds32_expand_result_type nds32_expand_cstore (rtx *);
 134 extern void nds32_expand_float_cbranch (rtx *);
 135 extern void nds32_expand_float_cstore (rtx *);
 136
 137 /* Auxiliary functions for conditional move generation.  */
 138
 139 extern enum nds32_expand_result_type nds32_expand_movcc (rtx *);
 140 extern void nds32_expand_float_movcc (rtx *);
 141
 142
 143 /* Auxiliary functions to identify long-call symbol.  */
 144 extern bool nds32_long_call_p (rtx);
 145
 146 /* Auxiliary functions to identify conditional move comparison operand.  */
 147
 148 extern int nds32_cond_move_p (rtx);
 149
 150 /* Auxiliary functions to identify 16 bit addresing mode.  */
 151
 152 extern enum nds32_16bit_address_type nds32_mem_format (rtx);
 153
 154 /* Auxiliary functions to identify floating-point addresing mode.  */
 155
 156 extern bool nds32_float_mem_operand_p (rtx);
 157
 158 /* Auxiliary functions to output assembly code.  */
 159
 160 extern const char *nds32_output_16bit_store (rtx *, int);
 161 extern const char *nds32_output_16bit_load (rtx *, int);
 162 extern const char *nds32_output_32bit_store (rtx *, int);
 163 extern const char *nds32_output_32bit_load (rtx *, int);
 164 extern const char *nds32_output_32bit_load_s (rtx *, int);
 165 extern const char *nds32_output_float_load(rtx *);
 166 extern const char *nds32_output_float_store(rtx *);
 167 extern const char *nds32_output_smw_single_word (rtx *);
 168 extern const char *nds32_output_lmw_single_word (rtx *);
 169 extern const char *nds32_output_double (rtx *, bool);
 170 extern const char *nds32_output_cbranchsi4_equality_zero (rtx_insn *, rtx *);
 171 extern const char *nds32_output_cbranchsi4_equality_reg (rtx_insn *, rtx *);
 172 extern const char *nds32_output_cbranchsi4_equality_reg_or_const_int (rtx_insn *,
 173                                                                       rtx *);
 174 extern const char *nds32_output_cbranchsi4_greater_less_zero (rtx_insn *, rtx *);
 175
 176 extern const char *nds32_output_call (rtx, rtx *, rtx,
 177                                       const char *, const char *, bool);
 178
 179
 180 /* Auxiliary functions to output stack push/pop instruction.  */
 181
 182 extern const char *nds32_output_stack_push (rtx);
 183 extern const char *nds32_output_stack_pop (rtx);
 184 extern const char *nds32_output_return (void);
 185
 186 /* Auxiliary functions to split double word RTX pattern.  */
 187
 188 extern void nds32_spilt_doubleword (rtx *, bool);
 189
 190 /* Auxiliary functions to split large constant RTX pattern.  */
 191
 192 extern void nds32_expand_constant (machine_mode,
 193                                    HOST_WIDE_INT, rtx, rtx);
 194
 195 /* Auxiliary functions to check using return with null epilogue.  */
 196
 197 extern int nds32_can_use_return_insn (void);
 198
 199 /* Auxiliary functions to decide output alignment or not.  */
 200
 201 extern int nds32_target_alignment (rtx_insn *);
 202
 203 /* Auxiliary functions to expand builtin functions.  */
 204
 205 extern void nds32_init_builtins_impl (void);
 206 extern rtx nds32_expand_builtin_impl (tree, rtx, rtx,
 207                                       machine_mode, int);
 208 extern tree nds32_builtin_decl_impl (unsigned, bool);
 209
 210 /* Auxiliary functions for ISR implementation.  */
 211
 212 extern void nds32_check_isr_attrs_conflict (tree, tree);
 213 extern void nds32_construct_isr_vectors_information (tree, const char *);
 214 extern void nds32_asm_file_start_for_isr (void);
 215 extern void nds32_asm_file_end_for_isr (void);
 216 extern bool nds32_isr_function_p (tree);
 217
 218 /* Auxiliary functions for cost calculation.  */
 219
 220 extern bool nds32_rtx_costs_impl (rtx, machine_mode, int, int, int *, bool);
 221 extern int nds32_address_cost_impl (rtx, machine_mode, addr_space_t, bool);
 222
 223 /* Auxiliary functions for pre-define marco.  */
 224 extern void nds32_cpu_cpp_builtins(struct cpp_reader *);
 225
 226 extern bool nds32_split_double_word_load_store_p (rtx *,bool);
 227
 228 /* Functions for create nds32 specific optimization pass.  */
 229 extern rtl_opt_pass *make_pass_nds32_relax_opt (gcc::context *);
 230
 231 /* ------------------------------------------------------------------------ */