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_return_addr_rtx (int, rtx);
  44
  45 /* -- Eliminating Frame Pointer and Arg Pointer.  */
  46
  47 extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
  48                                                        unsigned int);
  49
  50 /* -- Passing Arguments in Registers.  */
  51
  52 extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
  53                                         tree, rtx, tree, int);
  54
  55 /* -- Function Entry and Exit.  */
  56
  57 extern void nds32_expand_prologue (void);
  58 extern void nds32_expand_epilogue (bool);
  59 extern void nds32_expand_prologue_v3push (void);
  60 extern void nds32_expand_epilogue_v3pop (bool);
  61
  62 /* ------------------------------------------------------------------------ */
  63
  64 /* Auxiliary functions for auxiliary macros in nds32.h.  */
  65
  66 extern bool nds32_ls_333_p (rtx, rtx, rtx, machine_mode);
  67
  68 /* Auxiliary functions for lwm/smw.  */
  69
  70 extern bool nds32_valid_smw_lwm_base_p (rtx);
  71
  72 /* Auxiliary functions for expanding rtl used in nds32-multiple.md.  */
  73
  74 extern rtx nds32_expand_load_multiple (int, int, rtx, rtx, bool, rtx *);
  75 extern rtx nds32_expand_store_multiple (int, int, rtx, rtx, bool, rtx *);
  76 extern bool nds32_expand_movmemsi (rtx, rtx, rtx, rtx);
  77 extern bool nds32_expand_setmem (rtx, rtx, rtx, rtx, rtx, rtx);
  78 extern bool nds32_expand_strlen (rtx, rtx, rtx, rtx);
  79
  80 /* Auxiliary functions for expand unalign load instruction.  */
  81
  82 extern void nds32_expand_unaligned_load (rtx *, enum machine_mode);
  83
  84 /* Auxiliary functions for expand unalign store instruction.  */
  85
  86 extern void nds32_expand_unaligned_store (rtx *, enum machine_mode);
  87
  88 /* Auxiliary functions for multiple load/store predicate checking.  */
  89
  90 extern bool nds32_valid_multiple_load_store_p (rtx, bool, bool);
  91
  92 /* Auxiliary functions for stack operation predicate checking.  */
  93
  94 extern bool nds32_valid_stack_push_pop_p (rtx, bool);
  95
  96 /* Auxiliary functions for bit operation detection.  */
  97
  98 extern int nds32_can_use_bclr_p (int);
  99 extern int nds32_can_use_bset_p (int);
 100 extern int nds32_can_use_btgl_p (int);
 101
 102 extern int nds32_can_use_bitci_p (int);
 103
 104 /* Auxiliary function for 'Computing the Length of an Insn'.  */
 105
 106 extern int nds32_adjust_insn_length (rtx_insn *, int);
 107
 108 /* Auxiliary functions for FP_AS_GP detection.  */
 109
 110 extern int nds32_fp_as_gp_check_available (void);
 111
 112 extern bool nds32_symbol_load_store_p (rtx_insn *);
 113
 114 /* Auxiliary functions for jump table generation.  */
 115
 116 extern const char *nds32_output_casesi_pc_relative (rtx *);
 117 extern const char *nds32_output_casesi (rtx *);
 118
 119 /* Auxiliary functions to identify 16 bit addresing mode.  */
 120
 121 extern enum nds32_16bit_address_type nds32_mem_format (rtx);
 122
 123 /* Auxiliary functions to output assembly code.  */
 124
 125 extern const char *nds32_output_16bit_store (rtx *, int);
 126 extern const char *nds32_output_16bit_load (rtx *, int);
 127 extern const char *nds32_output_32bit_store (rtx *, int);
 128 extern const char *nds32_output_32bit_load (rtx *, int);
 129 extern const char *nds32_output_32bit_load_s (rtx *, int);
 130 extern const char *nds32_output_smw_single_word (rtx *);
 131 extern const char *nds32_output_lmw_single_word (rtx *);
 132
 133 /* Auxiliary functions to output stack push/pop instruction.  */
 134
 135 extern const char *nds32_output_stack_push (rtx);
 136 extern const char *nds32_output_stack_pop (rtx);
 137
 138 /* Auxiliary functions to check using return with null epilogue.  */
 139
 140 extern int nds32_can_use_return_insn (void);
 141
 142 /* Auxiliary functions to decide output alignment or not.  */
 143
 144 extern int nds32_target_alignment (rtx_insn *);
 145
 146 /* Auxiliary functions to expand builtin functions.  */
 147
 148 extern void nds32_init_builtins_impl (void);
 149 extern rtx nds32_expand_builtin_impl (tree, rtx, rtx,
 150                                       machine_mode, int);
 151 extern tree nds32_builtin_decl_impl (unsigned, bool);
 152
 153 /* Auxiliary functions for ISR implementation.  */
 154
 155 extern void nds32_check_isr_attrs_conflict (tree, tree);
 156 extern void nds32_construct_isr_vectors_information (tree, const char *);
 157 extern void nds32_asm_file_start_for_isr (void);
 158 extern void nds32_asm_file_end_for_isr (void);
 159 extern bool nds32_isr_function_p (tree);
 160
 161 /* Auxiliary functions for cost calculation.  */
 162
 163 extern bool nds32_rtx_costs_impl (rtx, machine_mode, int, int, int *, bool);
 164 extern int nds32_address_cost_impl (rtx, machine_mode, addr_space_t, bool);
 165
 166 /* Auxiliary functions for pre-define marco.  */
 167 extern void nds32_cpu_cpp_builtins(struct cpp_reader *);
 168
 169 /* Functions for create nds32 specific optimization pass.  */
 170 extern rtl_opt_pass *make_pass_nds32_relax_opt (gcc::context *);
 171
 172 /* ------------------------------------------------------------------------ */